Science China Materials最新文献

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Charge-polarized lanthanide coordination strategy enables activity-stability synergy in rare earth-tailored metallene electrocatalysts 电荷极化镧系配位策略使稀土定制的金属烯电催化剂的活性-稳定性协同作用
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-16 DOI: 10.1007/s40843-025-3626-2
Tianheng Du  (, ), Sijie Chen  (, ), Xianzhe Zhao  (, ), Xueheng Liu  (, ), Lifang Zhang  (, ), Xi Zhou  (, ), Linbo Li  (, ), Tongfei Li  (, ), Tao Qian  (, )
{"title":"Charge-polarized lanthanide coordination strategy enables activity-stability synergy in rare earth-tailored metallene electrocatalysts","authors":"Tianheng Du \u0000 (,&nbsp;),&nbsp;Sijie Chen \u0000 (,&nbsp;),&nbsp;Xianzhe Zhao \u0000 (,&nbsp;),&nbsp;Xueheng Liu \u0000 (,&nbsp;),&nbsp;Lifang Zhang \u0000 (,&nbsp;),&nbsp;Xi Zhou \u0000 (,&nbsp;),&nbsp;Linbo Li \u0000 (,&nbsp;),&nbsp;Tongfei Li \u0000 (,&nbsp;),&nbsp;Tao Qian \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3626-2","DOIUrl":"10.1007/s40843-025-3626-2","url":null,"abstract":"<div><p>The development of durable electrocatalysts overcoming activity-stability compromises remains pivotal for advancing anion-exchange membrane fuel cells (AEMFCs). Herein, we engineer a rare earth-incorporated Pd-based metallene (PdLaCe) through lanthanide-based bimetallic coordination, resolving critical limitations in oxygen reduction reaction (ORR) catalysis. Combined experimental characterization and theoretical simulations reveal that La/Ce dual-doping induces charge polarization to generate Pd<sup><i>δ</i>−</sup>-La/Ce<sup><i>δ</i>+</sup> active sites, synergistically optimizing the electronic structure via d-band center downshifting. This configuration weakens oxygen intermediate adsorption while enhancing structural integrity across thermal cycles. The optimized PdLaCe metallene delivers exceptional ORR performance, achieving a record half-wave potential of 0.903 V (vs. RHE) with negligible degradation (&lt;6%) after 20,000 cycles, far surpassing commercial Pt/C benchmarks. Integrated into AEMFCs, it demonstrates a peak power density of 82.8 mW cm<sup>−2</sup> alongside unprecedented stability (0.8 V for 22 h). Fundamental insights into lanthanide-induced charge redistribution establish a universal paradigm for designing robust multimetallic electrocatalysts via rare earth coordination engineering, bridging critical gaps between functional optimization and industrial-scale fuel cell applications. This work provides transformative strategies for next-generation energy conversion systems requiring high efficiency and ultra-stability.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3607 - 3617"},"PeriodicalIF":7.4,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248263","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
Seawater electrolysis for hydrogen production: objectives and pathways 海水电解制氢:目的和途径
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-15 DOI: 10.1007/s40843-025-3562-3
Wei Liu  (, ), Daojin Zhou  (, ), Yun Kuang  (, ), Xiaoming Sun  (, )
{"title":"Seawater electrolysis for hydrogen production: objectives and pathways","authors":"Wei Liu \u0000 (,&nbsp;),&nbsp;Daojin Zhou \u0000 (,&nbsp;),&nbsp;Yun Kuang \u0000 (,&nbsp;),&nbsp;Xiaoming Sun \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3562-3","DOIUrl":"10.1007/s40843-025-3562-3","url":null,"abstract":"<p>海水电解制氢技术近年来在科研与工业领域均取得突破性进展. 在材料研发方面, 耐腐蚀、高活性、高选择性的电极材料已经可以基本满足工业化生产需求. 在系统集成方面, 抗波动电极与电解系统的开发, 成功解决了电解槽与离网可再生能源并网运行的技术难题. 除此之外, 电解质工程与阴离子工程等创新策略的应用, 更为稳定运行提供了进一步的保障. 从发展前景来看, 随着可再生能源发电成本的持续下降和电解效率的不断提升, 海水电解制氢技术将实现与风电、光伏等清洁能源的深度耦合, 成为构建零碳能源体系的核心技术之一, 在全球能源转型中发挥关键性作用.</p>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3519 - 3525"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248181","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
Physical interaction-driven design of modulus-adaptive polymers 模量自适应聚合物的物理交互驱动设计
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-15 DOI: 10.1007/s40843-025-3612-x
Lei Hou  (, ), Peiyi Wu  (, ), Shengtong Sun  (, )
{"title":"Physical interaction-driven design of modulus-adaptive polymers","authors":"Lei Hou \u0000 (,&nbsp;),&nbsp;Peiyi Wu \u0000 (,&nbsp;),&nbsp;Shengtong Sun \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3612-x","DOIUrl":"10.1007/s40843-025-3612-x","url":null,"abstract":"<p>模量自适应聚合物能够在一定外界刺激下发生模量显著变化, 从而适应复杂的服役环境. 这类材料的传统设计思路仍大量依赖试错研究, 开发效率较低. 如何实现模量自适应聚合物性能的定制化设计目前仍存在极大挑战. 考虑到物理相互作用的动态性及其对材料力学性能的影响, 我们提出基于相互作用调控实现模量自适应聚合物材料的精准构筑. 研究过程须重点关注两个问题: 一是在实际体系中厘清主导模量自适应性能的关键相互作用, 二是基于综合表征手段解析相互作用、链动力学、相结构和宏观力学性能的内在联系. 从物理相互作用出发的“自下而上”策略可为智能高分子材料的精准设计提供有效途径.</p>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3526 - 3530"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248167","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
Electronic modulation of oxygen anion intercalated perovskite oxides for pseudocapacitance 氧阴离子插层钙钛矿氧化物赝电容的电子调制
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-15 DOI: 10.1007/s40843-025-3560-5
Tingting Liang  (, ), Ruilin Hou  (, ), Wei Li  (, ), Fengjiang Chen  (, ), Shan Xu  (, ), Xingbin Yan  (, )
{"title":"Electronic modulation of oxygen anion intercalated perovskite oxides for pseudocapacitance","authors":"Tingting Liang \u0000 (,&nbsp;),&nbsp;Ruilin Hou \u0000 (,&nbsp;),&nbsp;Wei Li \u0000 (,&nbsp;),&nbsp;Fengjiang Chen \u0000 (,&nbsp;),&nbsp;Shan Xu \u0000 (,&nbsp;),&nbsp;Xingbin Yan \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3560-5","DOIUrl":"10.1007/s40843-025-3560-5","url":null,"abstract":"<p>作为一种新型的赝电容电极材料, 钙钛矿氧化物能够通过氧阴离子插层来储存能量. 其电子结构在决定氧阴离子插层的活性位点以及相关的动力学过程起关键作用, 决定了钙钛矿氧化物的比容量和倍率性能. 因此, 我们提出了影响钙钛矿氧化物电极性能的五个关键因素, 包括氢氧根离子的吸脱附、氧离子迁移速率、氧空位浓度、钙钛矿氧化物的导电性以及界面重新构造, 并揭示了它们与电子结构的内在关联. 本文提出了调控能带结构和电子自旋状态以优化电极性能的代表性策略, 并深入阐述了结构-活性关系. 此外, 关于钙钛矿氧化物电极的挑战性问题及未来发展前景的讨论, 有望为该领域带来前瞻性指导和新发展机遇.</p>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3511 - 3518"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248180","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
Machine learning and high-throughput computation-assisted precise synthesis of quantum dots for reliable neuromorphic computing 机器学习和高通量计算辅助量子点精确合成,用于可靠的神经形态计算
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-11 DOI: 10.1007/s40843-025-3507-9
Zhiqing Wang  (, ), Keqiang Chen  (, ), Qiao Wang  (, ), Jing Yang  (, ), Zhi Qin  (, ), Yang Hu  (, ), Jie Shen  (, ), Pengchao Zhang  (, ), Jing Zhou  (, ), Wen Chen  (, )
{"title":"Machine learning and high-throughput computation-assisted precise synthesis of quantum dots for reliable neuromorphic computing","authors":"Zhiqing Wang \u0000 (,&nbsp;),&nbsp;Keqiang Chen \u0000 (,&nbsp;),&nbsp;Qiao Wang \u0000 (,&nbsp;),&nbsp;Jing Yang \u0000 (,&nbsp;),&nbsp;Zhi Qin \u0000 (,&nbsp;),&nbsp;Yang Hu \u0000 (,&nbsp;),&nbsp;Jie Shen \u0000 (,&nbsp;),&nbsp;Pengchao Zhang \u0000 (,&nbsp;),&nbsp;Jing Zhou \u0000 (,&nbsp;),&nbsp;Wen Chen \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3507-9","DOIUrl":"10.1007/s40843-025-3507-9","url":null,"abstract":"<div><p>Quantum dot (QD)-based memristors enable precise and energy-efficient neuromorphic computing through atomic-level control over electrical synapse performance. However, the stochastic nature of QD structures results in the poor reliability of resistive switching in neuromorphic computing, limiting its practical applications. Here, we present a data-driven QD synthesis optimization loop to precisely engineer QD structures for reliable neuromorphic computing. By deeply integrating high-throughput density functional theory with machine learning, we establish a cross-scale screening platform for precise synthesis of QDs, enabling multi-dimension predictions from atomic-level structures to macroscopic electrical synaptic behaviors. Through the minimization of structural disorder, achieved by pure phase, uniform size distribution, and highly preferred orientation, QD-based memristors demonstrate a 57% reduction in switching voltage, a two-order-of-magnitude increase in the ON/OFF ratio, and endurance and retention degradation as low as 0.1% over 8.4 × 10<sup>7</sup> s of continuous operation and 10<sup>5</sup> rapid read cycles. Furthermore, the dynamic learning range and neuromorphic computing accuracy are improved by 477% and 27.8% (reaching 92.23%), respectively. These findings establish a scalable, data-driven strategy for rational design of QD-based memristors, advancing the development of next-generation reliable neuromorphic computing systems.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3778 - 3788"},"PeriodicalIF":7.4,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248364","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
High-performance β-Ga2O3 solar-blind UV/X-ray photodetector enhanced by oxygen vacancy modulation 氧空位调制增强的高性能β-Ga2O3太阳盲UV/ x射线光电探测器
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-11 DOI: 10.1007/s40843-025-3495-8
Shunjie Yu  (, ), Xiaohu Hou  (, ), Yan Liu  (, ), Xiaolong Zhao  (, ), Shibing Long  (, )
{"title":"High-performance β-Ga2O3 solar-blind UV/X-ray photodetector enhanced by oxygen vacancy modulation","authors":"Shunjie Yu \u0000 (,&nbsp;),&nbsp;Xiaohu Hou \u0000 (,&nbsp;),&nbsp;Yan Liu \u0000 (,&nbsp;),&nbsp;Xiaolong Zhao \u0000 (,&nbsp;),&nbsp;Shibing Long \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3495-8","DOIUrl":"10.1007/s40843-025-3495-8","url":null,"abstract":"<div><p>High-performance solar-blind ultraviolet (SBUV) and X-ray detectors are essential for scientific research, medical diagnostics, and astronomical imaging. Ga<sub>2</sub>O<sub>3</sub> has emerged as a promising material for detection in this spectral range. However, the distinct mechanisms underlying SBUV and X-ray detection in Ga<sub>2</sub>O<sub>3</sub> remain poorly understood, hindering the optimization of device performance. This study introduces oxygen vacancy modulation to explore these mechanistic differences and enhance comprehensive detection capabilities of Ga<sub>2</sub>O<sub>3</sub> detectors. Highly crystalline β-Ga<sub>2</sub>O<sub>3</sub> films with different oxygen contents were prepared by metal-organic chemical vapor deposition at various oxygen and trimethylgallium (TEGa) precursor ratios (<i>F</i><sub>oxy</sub>/<i>F</i><sub>TEGa</sub>), and corresponding detectors were then fabricated. As the <i>F</i><sub>oxy</sub>/<i>F</i><sub>TEGa</sub> increases, β-Ga<sub>2</sub>O<sub>3</sub> crystal quality improves and oxygen vacancy content decreases. The device based on the film with the lowest oxygen vacancy content exhibits a remarkably low dark current of 30.9 fA. Under SBUV (254 nm), the device demonstrates the photo-to-dark current ratio of 8.7 × 10<sup>8</sup> and a responsivity of 237 A W<sup>−1</sup>. Notably, the detector achieves a sensitivity of 10,736 µC cm<sup>−2</sup> Gy<sub>air</sub><sup>−1</sup> under X-rays, which is 477 times higher than that of conventional a-Se detectors. Additionally, the study clarifies the differential roles of oxygen vacancies in the photoresponse under SBUV and X-ray irradiation, offering insights into how these differences affect both responsivity and response speed. These findings not only deepen the understanding of the SBUV and X-ray photoresponse mechanisms in Ga<sub>2</sub>O<sub>3</sub> detectors, but also provide a stepping stone for the design of detectors with excellent comprehensive performance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3695 - 3702"},"PeriodicalIF":7.4,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248178","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
The interface interaction of sulfur-doped carbon boosting kinetics of Na4Fe3(PO4)2(P2O7) for high rate and stable sodium-ion batteries 高倍率稳定钠离子电池中掺硫碳对Na4Fe3(PO4)2(P2O7)界面的促进动力学
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-10 DOI: 10.1007/s40843-025-3516-2
Yuyang Cai  (, ), Hanwen Cheng  (, ), Zhuo Chen  (, ), Hantao Xu  (, ), Shidong Li  (, ), Jinghao Li  (, ), Yibo Zhang  (, ), Li Zhao  (, ), Zhenzhen Dou  (, ), Lin Xu  (, )
{"title":"The interface interaction of sulfur-doped carbon boosting kinetics of Na4Fe3(PO4)2(P2O7) for high rate and stable sodium-ion batteries","authors":"Yuyang Cai \u0000 (,&nbsp;),&nbsp;Hanwen Cheng \u0000 (,&nbsp;),&nbsp;Zhuo Chen \u0000 (,&nbsp;),&nbsp;Hantao Xu \u0000 (,&nbsp;),&nbsp;Shidong Li \u0000 (,&nbsp;),&nbsp;Jinghao Li \u0000 (,&nbsp;),&nbsp;Yibo Zhang \u0000 (,&nbsp;),&nbsp;Li Zhao \u0000 (,&nbsp;),&nbsp;Zhenzhen Dou \u0000 (,&nbsp;),&nbsp;Lin Xu \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3516-2","DOIUrl":"10.1007/s40843-025-3516-2","url":null,"abstract":"<div><p>Iron-based mixed phosphates are considered as promising cathode materials for sodium-ion batteries (SIBs) due to their low cost, non-toxicity, and high structural stability. However, their electrochemical performance is limited by poor electronic conductivity and sluggish ion diffusion. In this study, Na<sub>4</sub>Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>(P<sub>2</sub>O<sub>7</sub>) with porous coral-like S-doped carbon (NFPP-U0.5%) is presented as cathode materials for SIBs. The porous coral-like structure of the S-doped carbon layer, along with the C–S–Fe interaction, significantly enhances both electronic conductivity and sodium ion diffusion. NFPP-U0.5% delivers excellent rate performance, achieving a capacity of 80.3 mAh g<sup>−1</sup> at 20 C. Moreover, the <i>in-situ</i> X-ray diffraction analysis reveals that the C–S–Fe interaction, combined with the unique carbon structure, contributes to a small lattice volume change during cycling. NFPP-U0.5% finally reached an ultra-long cycling life (capacity retention of 82.66% after 25,000 cycles at 20 C). The outstanding electrochemical performances and the unique interface interaction demonstrate that the S-doped carbon coating NFPP is of high potential as a cathode material for low cost and long-lasting cyclability energy storage system.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3675 - 3684"},"PeriodicalIF":7.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248287","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
Plant growth monitoring, prediction, and self-regulation utilizing MXene/CNTs/TPU flexible strain sensors integrated with deep learning algorithms and soft actuators 利用集成了深度学习算法和软执行器的MXene/CNTs/TPU柔性应变传感器进行植物生长监测、预测和自我调节
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-10 DOI: 10.1007/s40843-025-3502-2
Xinyi Zhao  (, ), Xiangsheng Lin  (, ), Zhao Yao  (, ), Yuanyue Li  (, ), Yang Li  (, ), Ningji Gong  (, )
{"title":"Plant growth monitoring, prediction, and self-regulation utilizing MXene/CNTs/TPU flexible strain sensors integrated with deep learning algorithms and soft actuators","authors":"Xinyi Zhao \u0000 (,&nbsp;),&nbsp;Xiangsheng Lin \u0000 (,&nbsp;),&nbsp;Zhao Yao \u0000 (,&nbsp;),&nbsp;Yuanyue Li \u0000 (,&nbsp;),&nbsp;Yang Li \u0000 (,&nbsp;),&nbsp;Ningji Gong \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3502-2","DOIUrl":"10.1007/s40843-025-3502-2","url":null,"abstract":"<div><p>Smart agriculture utilizes sensors and software to control agricultural production through mobile or computer platforms, enabling unmanned, automated, and intelligent management. Recently, research and development in plant growth monitoring technologies have garnered significant attention. The challenge lies in achieving long-term monitoring, phased predictions, and plant self-regulation without harming the plants. The present study demonstrates the fabrication of plant-compatible and breathable tensile and bending strain sensors using composite nanofiber membranes (CNMs) composed of Ti<sub>2</sub>C<sub>2</sub>T<sub><i>x</i></sub> (MXene), carbon nanotubes (CNTs), and thermoplastic polyurethanes (TPU) through electrospinning and ultrasonic immersion techniques. The MXene and CNTs synergistically form a dual-network conductive structure on the TPU nanofiber membrane, thereby imparting the composite membrane with remarkable tensile sensitivity (5.41, 7.39, and 3.39 within the ranges of 0%–20%, 20%–50%, and 50%–70%, respectively) as well as exceptional bending sensitivity (1.79, 0.89, and 0.46 within the ranges of 0°–30°, 30°–90°, and 90°–120°, respectively). The tensile strain sensor, combined with a deep learning Long Short-Term Memory (LSTM) model, establishes a platform for plant growth monitoring and prediction. The bending strain sensor, integrated with a shape memory alloy (SMA)-based soft actuator, forms a plant sensing-actuating system to assist in plant leaf growth. This work leverages MXene/CNTs/TPU CNMs to flexibly prepare strain sensors for specific applications, combining deep learning and soft actuators to achieve plant growth prediction and self-regulation. This research holds significant importance in advancing the development of smart agriculture.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3715 - 3727"},"PeriodicalIF":7.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248265","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
Controlled self-template synthesis of CoNiFe-PBA hollow structure with enhanced electrocatalytic oxygen evolution reaction activity 具有增强电催化析氧活性的CoNiFe-PBA中空结构的可控自模板合成
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-10 DOI: 10.1007/s40843-025-3492-6
Songtao Zhang  (, ), Yong Chen  (, ), Tao Pan  (, ), Ying Wei  (, ), Yong Li  (, ), Zixia Lin  (, ), Yecan Pi  (, ), Shuai Cao  (, ), Yijian Tang  (, ), Yongbin Hu  (, ), Mingbo Zheng  (, ), Huan Pang  (, )
{"title":"Controlled self-template synthesis of CoNiFe-PBA hollow structure with enhanced electrocatalytic oxygen evolution reaction activity","authors":"Songtao Zhang \u0000 (,&nbsp;),&nbsp;Yong Chen \u0000 (,&nbsp;),&nbsp;Tao Pan \u0000 (,&nbsp;),&nbsp;Ying Wei \u0000 (,&nbsp;),&nbsp;Yong Li \u0000 (,&nbsp;),&nbsp;Zixia Lin \u0000 (,&nbsp;),&nbsp;Yecan Pi \u0000 (,&nbsp;),&nbsp;Shuai Cao \u0000 (,&nbsp;),&nbsp;Yijian Tang \u0000 (,&nbsp;),&nbsp;Yongbin Hu \u0000 (,&nbsp;),&nbsp;Mingbo Zheng \u0000 (,&nbsp;),&nbsp;Huan Pang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3492-6","DOIUrl":"10.1007/s40843-025-3492-6","url":null,"abstract":"<div><p>The microstructure and composition of electrocatalysts play a crucial role in determining their oxygen evolution reaction (OER) performance. Herein, we report a controlled self-template synthesis of hollow CoNiFe Prussian blue analogues (PBAs) and their phosphide derivatives with enhanced OER activity. Cobalt-nickel basic acetates with tunable metal ratios were first synthesized via a solvothermal method, followed by anion exchange with potassium hexacyanoferrate to form CoNiFe-PBAs, and subsequent phosphorization to obtain hollow CoNiFe phosphides (CoNiFe-PBA-Ps). Among these, the Co<sub>3</sub>Ni<sub>1</sub>Fe composition exhibits an optimal combination of reduced particle size and hollow architecture, resulting in more exposed active sites and increased electrolyte accessibility. The final Co<sub>3</sub>Ni<sub>1</sub>Fe-PBA-P displays a low overpotential of 273 mV at 10 mA cm<sup>−2</sup> and a Tafel slope of 59 mV dec<sup>−1</sup>, outperforming other Co<sub><i>x</i></sub>Ni<sub><i>y</i></sub>Fe-PBA-Ps and many reported Co, Ni, Fe-based electrocatalysts. DFT calculations confirm that the improved activity stems from the lower energy barriers of the key OER intermediates. This work provides a versatile strategy to design multi-metallic hollow nanostructures with small particle size, offering new insights into the development of high-performance electrocatalysts.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3667 - 3674"},"PeriodicalIF":7.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248177","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-free Bi-Sn@C composites with high capacity and long cycle life for superior sodium storage 无缺陷Bi-Sn@C复合材料,具有高容量和长循环寿命,具有卓越的钠储存能力
IF 7.4 2区 材料科学
Science China Materials Pub Date : 2025-09-10 DOI: 10.1007/s40843-025-3491-6
Jiabei Tian  (, ), Siguang Guo  (, ), Biao Gao  (, ), Min Liu  (, ), Yi Zhou  (, ), Jianwei Ren  (, ), Mehran Javanbakht, Hamid Omidvar, Zhuo Li  (, ), Hao Song  (, ), Kaifu Huo  (, )
{"title":"Defect-free Bi-Sn@C composites with high capacity and long cycle life for superior sodium storage","authors":"Jiabei Tian \u0000 (,&nbsp;),&nbsp;Siguang Guo \u0000 (,&nbsp;),&nbsp;Biao Gao \u0000 (,&nbsp;),&nbsp;Min Liu \u0000 (,&nbsp;),&nbsp;Yi Zhou \u0000 (,&nbsp;),&nbsp;Jianwei Ren \u0000 (,&nbsp;),&nbsp;Mehran Javanbakht,&nbsp;Hamid Omidvar,&nbsp;Zhuo Li \u0000 (,&nbsp;),&nbsp;Hao Song \u0000 (,&nbsp;),&nbsp;Kaifu Huo \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3491-6","DOIUrl":"10.1007/s40843-025-3491-6","url":null,"abstract":"<div><p>Binary alloys have garnered significant attention for the development of the sodium-ion battery due to their ability to combine the advantages of single-phase alloys. However, these materials often demonstrate limited electrochemical performance, and the relationship between their crystallization states and their sodium storage properties remains poorly understood. Here, we synthesize Bi-Sn binary alloys with various compositions via phase-separation metallurgy to explore the sodium storage properties of different crystalline structures. The results indicate that hypo- and hyper-eutectic Bi-Sn alloys readily form a “dendritic” primary phase at the non-eutectic interface, which aggravates structural degradation and increases internal resistance. In contrast, Bi-Sn alloys with optimized eutectic interfaces effectively control dendritic growth and reduce defects, resulting in enhanced microstructural stability and superior electrochemical performance. As results, the eutectic p-Bi<sub>57</sub>Sn<sub>43</sub>@C anode achieves a record-high specific capacity of 470.3 mAh g<sup>−1</sup> at 1 C and exhibits remarkable long-term cycling stability, retaining 95.2% of its capacity after 1000 cycles at 20 C. The defect-free eutectic concept presented here establishes a valuable foundation for future studies of binary and polycrystalline eutectic alloys in electrochemical applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3646 - 3656"},"PeriodicalIF":7.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248176","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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