Science China Materials最新文献

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An insight into conductive metal-organic frameworks for chemical sensing 对化学传感的导电金属有机框架的洞察
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-29 DOI: 10.1007/s40843-025-4029-4
Ruonan Wu  (, ), Xuejing Lin  (, ), Xiangyu Chen  (, ), Jingjuan Liu  (, ), Xiaohong Fang  (, ), Chuanhui Huang  (, )
{"title":"An insight into conductive metal-organic frameworks for chemical sensing","authors":"Ruonan Wu \u0000 (,&nbsp;),&nbsp;Xuejing Lin \u0000 (,&nbsp;),&nbsp;Xiangyu Chen \u0000 (,&nbsp;),&nbsp;Jingjuan Liu \u0000 (,&nbsp;),&nbsp;Xiaohong Fang \u0000 (,&nbsp;),&nbsp;Chuanhui Huang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4029-4","DOIUrl":"10.1007/s40843-025-4029-4","url":null,"abstract":"<div><p>Chemical sensing technology is pivotal in modern industry and daily life, with sensor performance critically reliant on nanomaterials. While sensors based on traditional nanomaterials, such as inorganic semiconductors and organic conductive polymers, have achieved commercialization, they face persistent challenges. As an emerging subclass, conductive metal-organic frameworks (c-MOFs) not only inherit the core advantages of traditional MOFs, high specific surface area, porosity, and tunable composition/structure, but also offer adjustable electrical conductivity, rendering them ideal for sensing applications. This review systematically elucidates the construction and properties of c-MOFs across microscopic crystalline and macroscopic micro-nano structural scales. Special emphasis is placed on the structural design and regulation of c-MOFs for analytical sensing, and the intrinsic structure-performance relationship is clarified to achieve higher sensitivity, selectivity, response speed, and long-term stability, as well as other performance. Finally, we comprehensively summarize the typical applications of c-MOFs-based sensors, covering environmental and safety monitoring, photoelectric detection, and health monitoring and diagnosis. At the same time, the key challenges existing in this field, such as the controllable preparation of high-quality single-crystal materials, the theoretical analysis of intrinsic electrically conductive mechanisms, and the balance between the macroscopic material stability and the processing performance of devices, were evaluated. The future research directions should focus on developing new ligands and metal combinations to optimize the band structure, deepening the exploration of the mechanisms of emerging physical effects such as piezoelectricity, and promoting the integration and application of materials in practical scenarios such as flexible electronics and wearable devices.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 9","pages":"5342 - 5362"},"PeriodicalIF":7.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phototherapeutic efficacy and cell death pathways of atomically precise chiral Au25 nanoclusters in tumor therapy 原子精确手性Au25纳米团簇在肿瘤治疗中的光疗效果和细胞死亡途径
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-28 DOI: 10.1007/s40843-026-4177-3
Ai Liu  (, ), Jiazhu Zheng  (, ), Ziyan Zhao  (, ), Yiming Wang  (, ), Yan Sun  (, ), Afang Dai  (, ), Zunfu Hu  (, ), Yunqiang Sun  (, ), Zibao Gan  (, ), Xiuwen Zheng  (, )
{"title":"Phototherapeutic efficacy and cell death pathways of atomically precise chiral Au25 nanoclusters in tumor therapy","authors":"Ai Liu \u0000 (,&nbsp;),&nbsp;Jiazhu Zheng \u0000 (,&nbsp;),&nbsp;Ziyan Zhao \u0000 (,&nbsp;),&nbsp;Yiming Wang \u0000 (,&nbsp;),&nbsp;Yan Sun \u0000 (,&nbsp;),&nbsp;Afang Dai \u0000 (,&nbsp;),&nbsp;Zunfu Hu \u0000 (,&nbsp;),&nbsp;Yunqiang Sun \u0000 (,&nbsp;),&nbsp;Zibao Gan \u0000 (,&nbsp;),&nbsp;Xiuwen Zheng \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4177-3","DOIUrl":"10.1007/s40843-026-4177-3","url":null,"abstract":"<div><p>Chirality is a ubiquitous structural feature that profoundly affects the efficacy of tumor therapy by regulating key physiological processes. However, the link between chirality and the therapeutic properties of metal nanomaterials, particularly atomically precise metal nanoclusters (NCs), remains poorly understood. Herein, atomically precise Au<sub>25</sub> NCs protected by chiral cysteine (cys) ligands (L-Au<sub>25</sub>(cys)<sub>18</sub>, D-Au<sub>25</sub>(cys)<sub>18</sub>, and Rac-Au<sub>25</sub>(cys)<sub>18</sub>) were constructed and systematically investigated to elucidate the association between chirality and their tumor therapeutic performance. Although no significant difference in enzyme-like activity was observed among the three NCs, Rac-Au<sub>25</sub>(cys)<sub>18</sub> exhibited enhanced reactive oxygen species generation capacity under 808 nm laser irradiation, achieving superior phototherapeutic effects in both <i>in vitro</i> and <i>in vivo</i> tumor models. The chiral Au<sub>25</sub> NCs induced distinct cell death pathways: L-Au<sub>25</sub>(cys)<sub>18</sub> primarily triggered ferroptosis, D-Au<sub>25</sub>(cys)<sub>18</sub> induced both ferroptosis and apoptosis, and all three NCs activated disulfidptosis. This work clarifies the correlation between chiral structures and the tumor therapeutic performance of gold NCs, providing experimental insights and theoretical support for the design of novel chiral nanomaterials and the optimization of precise tumor phototherapeutic strategies.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6507 - 6517"},"PeriodicalIF":7.7,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electromagnetic wave absorbing materials derived from rare earth ions enriched via host-guest interactions in anion metal-organic frameworks 稀土离子在阴离子金属-有机框架中通过主客体相互作用富集而成的电磁波吸收材料
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-28 DOI: 10.1007/s40843-025-4016-3
Mingfei Ren  (, ), Jiacheng Ma  (, ), Long Qin  (, ), Boyuan Zhang  (, ), Bokun Wang  (, ), Kaige Zhang  (, ), Zhanyou Ji  (, ), Chaochan Chen  (, ), Fan Wu  (, ), Yifan Kang  (, ), Wenhuan Huang  (, )
{"title":"Electromagnetic wave absorbing materials derived from rare earth ions enriched via host-guest interactions in anion metal-organic frameworks","authors":"Mingfei Ren \u0000 (,&nbsp;),&nbsp;Jiacheng Ma \u0000 (,&nbsp;),&nbsp;Long Qin \u0000 (,&nbsp;),&nbsp;Boyuan Zhang \u0000 (,&nbsp;),&nbsp;Bokun Wang \u0000 (,&nbsp;),&nbsp;Kaige Zhang \u0000 (,&nbsp;),&nbsp;Zhanyou Ji \u0000 (,&nbsp;),&nbsp;Chaochan Chen \u0000 (,&nbsp;),&nbsp;Fan Wu \u0000 (,&nbsp;),&nbsp;Yifan Kang \u0000 (,&nbsp;),&nbsp;Wenhuan Huang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-4016-3","DOIUrl":"10.1007/s40843-025-4016-3","url":null,"abstract":"<div><p>Rare earth-based electromagnetic wave (EMW) absorbing materials have broad application prospects due to their strong dielectric loss and magnetic loss ability, but the effective enrichment and utilization of rare earth ions are still challenging. In this work, an anionic imidazolium-based metal-organic framework (MOF) was used to realize the enrichment strategy of multiple rare earth ions (La<sup>3+</sup>, Ce<sup>3+</sup>, Pr<sup>3+</sup>, Nd<sup>3+</sup>, Y<sup>3+</sup>). Thanks to its anionic coordination framework, metal-organic zeolite (MOZ)-200 can uniformly enrich these ions and convert them into highly dispersed high-entropy rare earth alloy nanoparticles <i>in situ</i> during the carbonization process. The obtained HE@C composites have a conductive and graphitized carbon matrix, rich multi-scale polarization centers, and heterogeneous interfaces, which effectively enhance the dipole polarization, interface polarization, and conductive loss. Therefore, the material achieves excellent electromagnetic wave absorption in the Ku band, with a minimum reflection loss of −79.20 dB and a maximum effective absorption bandwidth of 5.23 GHz. Further integrated with the polyurethane matrix, a multifunctional flexible electromagnetic wave absorption device was obtained, including electromagnetic wave absorption, photothermal heating, microwave de-icing, and hydrophobicity. This work provides a feasible strategy for the utilization of rare earth ions and promotes the design of flexible multifunctional EMW absorbing materials.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 9","pages":"5692 - 5703"},"PeriodicalIF":7.7,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards synergistic transport of ions and electrons at the interface between Janus nanofiber separators and solid electrolyte interphase Janus纳米纤维分离器与固体电解质界面上离子和电子的协同输运
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-28 DOI: 10.1007/s40843-026-4255-5
Peng Yin  (, ), Zhu Yang  (, ), Hongting Pu  (, )
{"title":"Towards synergistic transport of ions and electrons at the interface between Janus nanofiber separators and solid electrolyte interphase","authors":"Peng Yin \u0000 (,&nbsp;),&nbsp;Zhu Yang \u0000 (,&nbsp;),&nbsp;Hongting Pu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4255-5","DOIUrl":"10.1007/s40843-026-4255-5","url":null,"abstract":"<div><p>The localized overheating in high-rate lithium-ion battery (LIB) or lithium metal battery (LMB) accelerates dendrite formation, which disrupts the uniformity of current density and thermal distribution. This study constructs a Janus-structured and polybenzimidazole (PBI) welded separator (JNS@PBI) with polypropylene nanofibers (PPNFs) (via multilayer co-extrusion) on one face and nanoscale carbon black-modified PPNFs (CPPNFs) on the other. The CPPNFs layer with electronic conductivity homogenizes the interfacial current distribution and heat dissipation, while the PPNFs layer provides electronic insulation. PBI with welding function and intrinsic ionic conductivity not only improves mechanical properties but also enhances the lithium-ion transport. The synergistic transport of ions and electrons is available at the interface between JNS@PBI and the solid electrolyte interphase. Density functional theory (DFT) calculations further elucidate how JNS@PBI enhances interfacial ion transport and regulates lithium deposition. JNS@PBI exhibits high porosity (71.3%), superior electrolyte uptake (451%), and high ionic conductivity (1.80 mS cm<sup>−1</sup>). Electrochemical tests further confirm the exceptional interfacial stability, stable polarization voltage during 2000 h of plating/stripping cycles, remarkable rate capability and cycling endurance, high-capacity retention rates of 85.2% after 700 cycles at 1 C and 90.3% after 1500 cycles at 3 C high rate are observed in assembled LiFePO<sub>4</sub>/graphite full cells. This provides a promising way for next-generation separators for high-safety LIB or LMB.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6410 - 6424"},"PeriodicalIF":7.7,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional polyoxometalate-based conductive hydrogels for low temperature tolerant, flexible wearable electronics 多功能多金属氧酸盐基导电水凝胶,用于耐低温,柔性可穿戴电子产品
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-27 DOI: 10.1007/s40843-026-4223-2
Jun Geng  (, ), Ying Lu  (, ), Jingqi Yang  (, ), Jiaqi Cai  (, ), Yantong Meng  (, ), Shuxia Liu  (, )
{"title":"Multifunctional polyoxometalate-based conductive hydrogels for low temperature tolerant, flexible wearable electronics","authors":"Jun Geng \u0000 (,&nbsp;),&nbsp;Ying Lu \u0000 (,&nbsp;),&nbsp;Jingqi Yang \u0000 (,&nbsp;),&nbsp;Jiaqi Cai \u0000 (,&nbsp;),&nbsp;Yantong Meng \u0000 (,&nbsp;),&nbsp;Shuxia Liu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4223-2","DOIUrl":"10.1007/s40843-026-4223-2","url":null,"abstract":"<div><p>The advancement of flexible wearable electronics demands materials that integrate high conductivity, exceptional mechanical flexibility, and broad environmental adaptability. Although polyoxometalate (POM)-based conductive hydrogels hold great promise, their application is impeded by two critical limitations: poor interfacial compatibility between POMs and polymer matrices, and significant conductivity degradation at low temperatures. To address these issues, we designed a POM-based proton-conductive hydrogel (PVA/P(SBMA-AM)/PW<sub>12</sub>/PA (PSAWA)) by incorporating zwitterionic sulfobetaine methacrylate (SBMA), phytic acid (PA), and H<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> (PW<sub>12</sub>) into a poly(vinyl alcohol) (PVA)-poly(acrylamide) dual-network matrix. SBMA enhances the loading and dispersion of PW<sub>12</sub> within the hydrogel via an electrostatic–steric synergistic mechanism. Concurrently, PA synergizes with PW<sub>12</sub> to ensure fast proton migration even at low temperatures by constructing proton-conduction pathways with reduced energy barriers. These design strategies endow the PSAWA hydrogel with ultrahigh proton conductivity (2.71 × 10<sup>−1</sup> S cm<sup>−1</sup> at 25 °C; 1.06 × 10<sup>−2</sup> S cm<sup>−1</sup> at −40 °C), alongside high stretchability, remarkable self-healing capability, effective antibacterial activity, and excellent biocompatibility. Furthermore, flexible biosensors and supercapacitors fabricated using the PSAWA hydrogel demonstrate outstanding performance even at −40 °C. This work offers new insights for developing proton-conductive hydrogels with low-temperature adaptability for wearable electronics.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 9","pages":"5637 - 5652"},"PeriodicalIF":7.7,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An ionic hydrogel-based 3D force sensor for multidimensional password input and enhanced security 一种基于离子水凝胶的三维力传感器,用于多维密码输入和增强安全性
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-27 DOI: 10.1007/s40843-026-4110-9
Haoyang Zhao  (, ), Xiaoqin Li  (, ), Xinming Zhuang  (, ), Qikai Guo  (, ), Min Zhang  (, ), Yang Li  (, )
{"title":"An ionic hydrogel-based 3D force sensor for multidimensional password input and enhanced security","authors":"Haoyang Zhao \u0000 (,&nbsp;),&nbsp;Xiaoqin Li \u0000 (,&nbsp;),&nbsp;Xinming Zhuang \u0000 (,&nbsp;),&nbsp;Qikai Guo \u0000 (,&nbsp;),&nbsp;Min Zhang \u0000 (,&nbsp;),&nbsp;Yang Li \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4110-9","DOIUrl":"10.1007/s40843-026-4110-9","url":null,"abstract":"<div><p>Flexible tactile sensors are a cornerstone of emerging human-machine interaction systems, enabling machines to perceive and respond to complex mechanical stimuli. However, achieving accurate and decoupled sensing of three-dimensional (3D) forces, together with their practical integration into functional systems, remains a significant challenge. Here, a piezoresistive 3D force sensor based on ionic hydrogels is presented, capable of detecting and analyzing multi-directional forces. The sensor exhibits a good linear response to normal forces in the range of 1–25 N (<i>R</i><sup>2</sup>=0.99) and maintains stable sensitivity for shear forces within the 0–4 N range. Moreover, the application of this sensor in a flexible password security system demonstrates considerable advantages. By incorporating both force magnitude and direction, our system expands the traditional one-dimensional password input into a multidimensional format, enabling the effective encryption of numeric, alphabetic and Morse code inputs. Experimental results indicate that this system holds significant potential for enhancing information security.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6400 - 6409"},"PeriodicalIF":7.7,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148672133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Substrate-mediated structural evolution of blue phosphorene: from bridging nanoislands to magic clusters 基质介导的蓝磷烯结构演化:从桥接纳米岛到神奇团簇
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-27 DOI: 10.1007/s40843-026-4182-6
Qiao Zheng  (, ), Yinuo Zhu  (, ), Wenjin Gao  (, ), Chenqiang Hua  (, ), Miao Zhou  (, ), Tianchao Niu  (, )
{"title":"Substrate-mediated structural evolution of blue phosphorene: from bridging nanoislands to magic clusters","authors":"Qiao Zheng \u0000 (,&nbsp;),&nbsp;Yinuo Zhu \u0000 (,&nbsp;),&nbsp;Wenjin Gao \u0000 (,&nbsp;),&nbsp;Chenqiang Hua \u0000 (,&nbsp;),&nbsp;Miao Zhou \u0000 (,&nbsp;),&nbsp;Tianchao Niu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4182-6","DOIUrl":"10.1007/s40843-026-4182-6","url":null,"abstract":"<div><p>Substrate interactions dictate the epitaxial growth of low-dimensional nanomaterials, yet controlling these interfaces at the atomic scale precision remains a critical challenge. Blue phosphorene (blueP) with freestanding lattice constant, experimentally realized exclusively on Ag(111), provides a unique platform to explore this interplay. Here, we elucidate the structural evolution of blueP on Ag(111), revealing that neighboring islands are not isolated but linked by single-phosphorus-atom bridges. To manipulate the interfacial coupling, we introduce a tellurium interlayer, driving the formation of an interfacial AgTe buffer that effectively decouples the islands. By tuning the substrate temperature, we achieve the synthesis of magic-number blueP clusters with uniform size and geometry. The resulting isolated blueP nanostructures facilitate the emergence of higher-order topological corner states in triangular geometries. Our findings demonstrate that tailoring interfacial interactions offers a robust route for reshaping phosphorene nanostructures, establishing essential building blocks for next-generation topological quantum materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6289 - 6297"},"PeriodicalIF":7.7,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Defect engineering activated lattice oxygen mechanism in high-entropy LDHs for highly active and durable oxygen evolution 高熵LDHs的缺陷工程激活晶格氧机制,实现高活性和持久的析氧
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-24 DOI: 10.1007/s40843-026-4180-9
Ying Li  (, ), Jiaxing Wang  (, ), Yue Shang  (, ), Yifan Dou  (, ), Limin Liang  (, ), Qiuyan Hao  (, ), Sijia Li  (, ), Hui Liu  (, )
{"title":"Defect engineering activated lattice oxygen mechanism in high-entropy LDHs for highly active and durable oxygen evolution","authors":"Ying Li \u0000 (,&nbsp;),&nbsp;Jiaxing Wang \u0000 (,&nbsp;),&nbsp;Yue Shang \u0000 (,&nbsp;),&nbsp;Yifan Dou \u0000 (,&nbsp;),&nbsp;Limin Liang \u0000 (,&nbsp;),&nbsp;Qiuyan Hao \u0000 (,&nbsp;),&nbsp;Sijia Li \u0000 (,&nbsp;),&nbsp;Hui Liu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4180-9","DOIUrl":"10.1007/s40843-026-4180-9","url":null,"abstract":"<div><p>Developing highly active and stable electrocatalysts based on the lattice oxygen mechanism (LOM) for the oxygen evolution reaction (OER) represents a significant challenge in water splitting. Herein, we successfully introduce oxygen vacancies (O<sub>v</sub>) into high-entropy MnFeCoNiCu layered double hydroxides (HE-LDHs) via a solution chemical reduction method utilizing a defect engineering strategy. By precisely tuning the concentration of oxygen vacancies, we effectively activate the lattice oxygen within the HE-LDHs. The optimized O<sub>v</sub>-rich high-entropy LDHs (O<sub>v</sub>-HE-LDHs) exhibit excellent OER catalytic performance, achieving a current density of 10 mA cm<sup>−2</sup> with a remarkably low overpotential of only 210 mV in 1.0 M KOH electrolyte, which is substantially superior to pristine HE-LDHs (315 mV) and commercial IrO<sub>2</sub> (330 mV). Furthermore, the catalyst demonstrates outstanding long-term stability, capable of stable operation for 500 h at a high current density of approximately 200 mA cm<sup>−2</sup>. Advanced X-ray absorption fine structure analysis elucidates the lower metal valence states, indicating the existence of oxygen vacancies, while isotope labeling experiments and <i>in-situ</i> electrochemical Raman spectroscopy strongly confirm the successful activation of the LOM pathway. Density functional theory calculations further validate that the shift in the OER mechanism towards LOM and the resulting reduction in the reaction energy barrier are the fundamental reasons for the catalyst’s enhanced intrinsic activity. This work proposes a novel strategy for activating lattice oxygen in high-entropy LDHs through defect engineering, offering new insights and experimental guidance for the design and development of highly efficient and stable high-entropy OER electrocatalysts.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6350 - 6359"},"PeriodicalIF":7.7,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cl−-driven pathway switching enables efficient industrial-current seawater oxidation on dual-atom catalysts Cl−驱动的通路开关实现了双原子催化剂上高效的工业电流海水氧化
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-24 DOI: 10.1007/s40843-026-4153-2
Guiping Zheng  (, ), Zijian Li  (, ), Shizheng Zhou  (, ), Haeseong Jang, Min Gyu Kim, Qing Qin  (, ), Liqiang Hou  (, ), Xien Liu  (, )
{"title":"Cl−-driven pathway switching enables efficient industrial-current seawater oxidation on dual-atom catalysts","authors":"Guiping Zheng \u0000 (,&nbsp;),&nbsp;Zijian Li \u0000 (,&nbsp;),&nbsp;Shizheng Zhou \u0000 (,&nbsp;),&nbsp;Haeseong Jang,&nbsp;Min Gyu Kim,&nbsp;Qing Qin \u0000 (,&nbsp;),&nbsp;Liqiang Hou \u0000 (,&nbsp;),&nbsp;Xien Liu \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4153-2","DOIUrl":"10.1007/s40843-026-4153-2","url":null,"abstract":"<div><p>Direct electrolysis of seawater for hydrogen production offers a vital route to circumvent freshwater limitations and advance a sustainable hydrogen economy. Herein, we present a novel catalyst design strategy based on the co-doping of Ru atoms with strong chloride affinity and Cr atoms serving as Lewis acid centers into a nickel phosphide matrix (RuCr-Ni<sub>3</sub>P). This material is a highly active anode for direct alkaline seawater electrolysis, offering outstanding oxygen evolution reaction (OER) selectivity and operational longevity exceeding 4000 h under industrially relevant conditions. Mechanistic investigations reveal that chloride ions are not merely detrimental impurities, but are selectively captured by Ru sites to form a dynamic Ru–Cl coordination motif. This interaction electronically modulates adjacent Ni active centers, facilitating the generation of high-valent Ni<sup>&gt;3+</sup> species and switching the dominant OER pathway from the lattice oxygen mechanism (LOM) to the more efficient adsorbate evolution mechanism (AEM). Simultaneously, Cr sites promote the formation of Cr–OH species, which cooperatively create a localized alkaline microenvironment favorable for OER on the high-valent Ni centers. This dual-site synergistic mechanism, wherein Ru sites regulate chloride and Ni/Cr sites drive catalysis, effectively transforms Cl<sup>−</sup> from a performance-limiting species into a chemical switch that concurrently enhances both activity and stability.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6319 - 6328"},"PeriodicalIF":7.7,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40843-026-4153-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differentiated adsorption of intermediates on high-entropy intermetallic metallene promotes selective electrocatalytic upgrading of PET plastics to glycolic acid 中间体在高熵金属间烯上的差异吸附促进了PET塑料选择性电催化升级为乙醇酸
IF 7.7 2区 材料科学
Science China Materials Pub Date : 2026-07-24 DOI: 10.1007/s40843-026-4159-y
Jiabing Geng  (, ), Jiabao Yu  (, ), Ruidong Yang  (, ), Hongjie Yu  (, ), You Xu  (, ), Shibin Yin  (, ), Kai Deng  (, ), Ziqiang Wang  (, ), Liang Wang  (, )
{"title":"Differentiated adsorption of intermediates on high-entropy intermetallic metallene promotes selective electrocatalytic upgrading of PET plastics to glycolic acid","authors":"Jiabing Geng \u0000 (,&nbsp;),&nbsp;Jiabao Yu \u0000 (,&nbsp;),&nbsp;Ruidong Yang \u0000 (,&nbsp;),&nbsp;Hongjie Yu \u0000 (,&nbsp;),&nbsp;You Xu \u0000 (,&nbsp;),&nbsp;Shibin Yin \u0000 (,&nbsp;),&nbsp;Kai Deng \u0000 (,&nbsp;),&nbsp;Ziqiang Wang \u0000 (,&nbsp;),&nbsp;Liang Wang \u0000 (,&nbsp;)","doi":"10.1007/s40843-026-4159-y","DOIUrl":"10.1007/s40843-026-4159-y","url":null,"abstract":"<div><p>The electrocatalytic oxidation of ethylene glycol (EG) derived from polyethylene terephthalate (PET) waste to valuable glycolic acid (GA) represents an attractive route for waste resource upcycling. However, achieving high selectivity remains challenging due to the difficulty in steering the complex reaction pathway. In this study, PdPtCuInBi high-entropy intermetallic metallene (HEI-PdPtCuInBiene) is reported to precisely control EG oxidation reaction (EGOR) pathway for GA production by constructing multiple active sites at the atomic scale. In PET hydrolysate, it achieves a Faradaic efficiency of 99.87% and a production rate of 1.47 mmol h<sup>−1</sup> cm<sup>−2</sup>, along with excellent stability. Mechanistic studies reveal that the high-entropy structure induces strong p-d orbital hybridization, which optimizes the electronic structure of active sites, thus weakening the adsorption of key carbonyl intermediates and suppressing C–C bond cleavage. The synergistic electronic effect among Pd, Pt, and Cu further enables differential adsorption of distinct intermediates on diverse active sites, enhancing the selective formation of GA. Techno-economic analysis exhibits high profitability (∼$784.9 t<sup>−1</sup> PET) of this route, demonstrating the great potential of high-entropy intermetallic metallene in regulating electrocatalytic upcycling of PET waste and beyond.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 10","pages":"6121 - 6131"},"PeriodicalIF":7.7,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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