Advanced Materials最新文献_第2页

Fast Hydrogel Micro‐Actuators Driven by Electric Fields 电场驱动的快速水凝胶微致动器

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2026-09-05 DOI: 10.1002/adma.74787

Annaël Sort‐Montenegro,Jason M. Delente,Žiga Roblek,Yekaterina Tskhe,Luke Dowling,Colm Delaney,Larisa Florea

{"title":"Fast Hydrogel Micro‐Actuators Driven by Electric Fields","authors":"Annaël Sort‐Montenegro,Jason M. Delente,Žiga Roblek,Yekaterina Tskhe,Luke Dowling,Colm Delaney,Larisa Florea","doi":"10.1002/adma.74787","DOIUrl":"https://doi.org/10.1002/adma.74787","url":null,"abstract":"ABSTRACT Electrically‐driven hydrogels are crosslinked, charged polymer networks that can deform in an electric field, prompted by osmotic pressure changes. To date, such actuators generally suffer from sluggish response time, with equilibrium actuation times ranging from minutes to hours in aqueous electrolytes, and lack sophisticated design, due to established manufacturing protocols. Herein, these limitations are overcome through the fabrication of polyelectrolyte hydrogel microstructures via two‐photon polymerization (2PP). This approach allows for the realization of microscale electrically‐driven actuators exhibiting fast actuation (∼200 ms equilibrium time). The work highlights three photoresist formulations for poly(anionic) and poly(cationic) hydrogel networks and their fabrication via 2PP to produce micro‐electro‐actuators with sub‐micron features. The electrically‐driven actuation performance is investigated by varying the hydrogel composition, actuator geometry, along with electric field strength and direction, and local environment (pH and electrolyte concentration) during actuation. It was determined that micro‐cantilevers of 80 × 20 × 10 µm 3 reached equilibrium bending of up to 44.9 ± 7.8°, in ∼ 200 ms, in response to electric fields of 6 V mm −1 . This pioneering work marks the first integration of 2PP with electrically actuated gelatin‐based hydrogels, showcasing micro‐electro‐actuators with rapid and programmable 4D motion.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"113 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Steering pH‐Dependent Pathways on Unconventional Phase Alloy Nanostructures for Universal Nitrate Electroreduction 非常规相合金纳米结构的pH依赖通路用于通用硝酸电还原

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2026-09-05 DOI: 10.1002/adma.74915

Fengkun Hao,Liang Guo,Yunhao Wang,Xinyi Li,Jingwen Zhou,Fu Liu,Juan Wang,Peng Chen,Yuecheng Xiong,Chaohui Wang,Yangbo Ma,Xiang Meng,Guozhi Wang,Qingbo Wa,Mingzheng Shao,Xintao Ma,Yunming Zhong,Miao Wang,Fangren Qian,Xiuyun Zhang,Chenliang Ye,Chongyi Ling,Xiao Zhao,Zhanxi Fan

{"title":"Steering pH‐Dependent Pathways on Unconventional Phase Alloy Nanostructures for Universal Nitrate Electroreduction","authors":"Fengkun Hao,Liang Guo,Yunhao Wang,Xinyi Li,Jingwen Zhou,Fu Liu,Juan Wang,Peng Chen,Yuecheng Xiong,Chaohui Wang,Yangbo Ma,Xiang Meng,Guozhi Wang,Qingbo Wa,Mingzheng Shao,Xintao Ma,Yunming Zhong,Miao Wang,Fangren Qian,Xiuyun Zhang,Chenliang Ye,Chongyi Ling,Xiao Zhao,Zhanxi Fan","doi":"10.1002/adma.74915","DOIUrl":"https://doi.org/10.1002/adma.74915","url":null,"abstract":"ABSTRACT Electrocatalytic nitrate reduction reaction (NO 3 RR) to ammonia has been regarded as a sustainable strategy for industrial wastewater denitrification and fertilizer manufacturing toward green nitrogen circulation. However, complex pH conditions of practical nitrate wastewater result in poor catalyst universality, severely hindering their long‐term deployment. Furthermore, the underlying reaction mechanisms in different pH scenarios remain ambiguous, obstructing the rational design of pH‐universal electrocatalysts. Here we propose a crystal phase engineering approach to enhance the NO 3 RR performance in complex pH scenarios. The as‐designed unconventional face‐centered cubic (fcc) RuW nanoflowers exhibit excellent ammonia Faradaic efficiency (FE) above 91.0% over a wide pH range of 1–14, with the largest yield rate of 40.1 mg h −1 mg cat −1 . Mechanism studies indicate that fcc RuW nanoflowers adaptively steer reaction pathways toward diverse pH environments. Based on the long‐term durability test at an industrial‐level current density of 300 mA cm −2 for 200 h in flow reactors, techno‐economic analysis with the optimized process further demonstrates promising application potential. This study not only provides a fundamental insight into the pH‐dependent mechanisms of nitrate electroreduction, but also offers a robust catalyst design approach toward complex practical conditions.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"1 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Covalently Anchored Multifunctional Interlayer Enables Ultrastable and Fast ‐ Charging Composite Solid ‐ State Sodium Metal Batteries 共价锚定多功能中间层实现超稳定和快速充电的复合固态钠金属电池

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2026-09-05 DOI: 10.1002/adma.74923

Shuangwu Xu,Shaoe Xiang,Pengcheng Mao,Huapeng Sun,Jian Tu,Dan Sun,Xiaobo Ji,Yougen Tang,Haiyan Wang

{"title":"Covalently Anchored Multifunctional Interlayer Enables Ultrastable and Fast ‐ Charging Composite Solid ‐ State Sodium Metal Batteries","authors":"Shuangwu Xu,Shaoe Xiang,Pengcheng Mao,Huapeng Sun,Jian Tu,Dan Sun,Xiaobo Ji,Yougen Tang,Haiyan Wang","doi":"10.1002/adma.74923","DOIUrl":"https://doi.org/10.1002/adma.74923","url":null,"abstract":"ABSTRACT The practical application of composite solid‐state sodium metal batteries is critically limited by poor organic–inorganic compatibility, causing particle agglomeration, high interfacial resistance, and dendrite growth. Here, a covalent surface grafting strategy constructs a multifunctional interlayer covalently anchored on Na 3 Zr 2 Si 2 PO 12 , featuring a cross‑linked siloxane network and terminal ─NH 2 groups. Covalent anchorage transforms inert particle surfaces into dispersible units, while ─NH 2 groups anchor TFSI – and confine residual solvent via hydrogen bonding and Lewis acid‑base interactions. This dual regulation decouples ion transport from side reactions, yielding a high Na + transference number (0.58) and a stable, NaF‑rich, thin solid‑electrolyte interphase (SEI). The optimized electrolyte enables symmetric cells with exceptional cycling stability and high critical current density (CCD). Full cells achieve fast‑charging (92 mAh g −1 at 15 C) and ultralong cycle life (76.4% retention after 7000 cycles at 10 C). A flexible pouch cell retains 97% capacity after 150 cycles. This work establishes that precise molecular‑level interfacial design, rather than simple physical blending, is key to high‑performance, dendrite‑resistant solid‑state sodium batteries.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"39 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Decoupled Synthesis Pathway via Precursor Functionalization Stabilizes High‐Voltage Nickel‐Based Cathodes 前驱体功能化解耦合成途径稳定高电压镍基阴极

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2026-09-05 DOI: 10.1002/adma.74909

Chunyu Xu,Hengyu Ren,Xiaohu Wang,Zijin Xu,Haocheng Ji,Haocong Yi,Funing Yu,Wenguang Zhao,Wenzhe Bao,Qinghao Lai,Zizheng Tong,Bowen Nan,Shiming Chen,Zhaohuang Zhan,Zhongzhe Li,Tao Zeng,Hui Chen,Weiyuan Huang,Jiajie Liu,Qinghe Zhao,Feng Pan

{"title":"Decoupled Synthesis Pathway via Precursor Functionalization Stabilizes High‐Voltage Nickel‐Based Cathodes","authors":"Chunyu Xu,Hengyu Ren,Xiaohu Wang,Zijin Xu,Haocheng Ji,Haocong Yi,Funing Yu,Wenguang Zhao,Wenzhe Bao,Qinghao Lai,Zizheng Tong,Bowen Nan,Shiming Chen,Zhaohuang Zhan,Zhongzhe Li,Tao Zeng,Hui Chen,Weiyuan Huang,Jiajie Liu,Qinghe Zhao,Feng Pan","doi":"10.1002/adma.74909","DOIUrl":"https://doi.org/10.1002/adma.74909","url":null,"abstract":"ABSTRACT Nickel‐based layered cathodes are promising candidates for high‐performance, high‐energy lithium‐ion batteries, yet their high‐voltage application is jointly limited by synthesis‐inherited structural defects and an unstable lattice oxygen framework. Here, we show that both limitations can be overcome by decoupled synthesis pathway (DSP) via La/Nb oxalate functionalization of the Ni 0.6 Co 0.1 Mn 0.3 (OH) 2 precursor. Unlike the conventional coupled synthesis pathway (CSP) where precursor dehydration and Li 2 CO 3 decomposition overlap in temperature, the DSP introduces a low‑temperature decomposition of La/Nb oxalates at 200°C, which effectively avoids localized contact between the precursor and Li 2 CO 3 and shifts Li 2 CO 3 ‐related reactions to high temperatures. This allows sequential precursor dehydroxylation, rock‑salt (RS) intermediate formation, and layered‑phase transformation over a broad temperature window. The resulting LiNi 0.6 Co 0.1 Mn 0.3 O 2 cathode with La/Nb functionalization (NCM‐LN) features a uniform surface LaNiO 3 perovskite heterostructure and a Nb‑doped layered bulk with suppressed RS and spinel defects. Consequently, under 4.5 V operation (vs. Li + /Li), NCM‐LN exhibits homogeneous Li + (de)intercalation, and a stabilized oxygen framework. In graphite||NCM‐LN full cells, NCM‐LN retains 80.1% of its capacity after 2000 cycles at 1C, substantially outperforming the pristine cathode. This decoupling strategy is broadly effective across various Ni‑based systems, providing a generalizable route toward high‑energy, long‑life cathode materials.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"13 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Suppressing Intermediate-Phase Heterogeneity Enables Efficient and Stable CsPbI₃ Solar Cells. 抑制中间相非均质性实现高效稳定的CsPbI3太阳能电池。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74895

Tianhao Xia, Xinmeng Zhuang, Lianghui Liu, Yanrun Chen, Zhongyang Zhang, Dejia Hu, Zifeng Wu, Wentao Zhou, Ruiyang Yin, Kailin Li, Yanchen Chen, Yue Li, Rundong Fan, Shuoyang Xu, Yue Ma, Yuetong Wu, Yan Li, Huanping Zhou

{"title":"Suppressing Intermediate-Phase Heterogeneity Enables Efficient and Stable CsPbI3 Solar Cells.","authors":"Tianhao Xia, Xinmeng Zhuang, Lianghui Liu, Yanrun Chen, Zhongyang Zhang, Dejia Hu, Zifeng Wu, Wentao Zhou, Ruiyang Yin, Kailin Li, Yanchen Chen, Yue Li, Rundong Fan, Shuoyang Xu, Yue Ma, Yuetong Wu, Yan Li, Huanping Zhou","doi":"10.1002/adma.74895","DOIUrl":"https://doi.org/10.1002/adma.74895","url":null,"abstract":"All-inorganic CsPbI3 perovskite solar cells are promising for durable photovoltaics owing to their superior resistance to thermal decomposition and halide segregation compared with hybrid counterparts. However, their photovoltaic performance remains hampered by poor crystalline quality arising from heterogeneous intermediate-phase evolution and nonuniform crystallization kinetics. Herein, an intermediate-phase homogenization strategy is developed to fabricate uniform CsPbI3 films, wherein calcium ascorbate regulates the intermediate phases through synergistic interactions with perovskite components-including electrostatic interactions, hydrogen bonding, and coordination bonding. This modulation approach effectively suppresses the formation of Cs4PbI6 intermediates and redirects the intermediate from a heterogeneous Cs4PbI6/DMAPbI3 mixture toward a predominant CsxDMA1-xPbI3(Asc) intermediate, yielding high-quality CsPbI3 films with improved structural and energetic homogeneity, as well as enhanced stability. The modified p-i-n CsPbI3 solar cells achieve a champion power conversion efficiency of 22.08%, among the highest reported for inverted CsPbI3 devices. Unencapsulated devices retain 97% of their initial efficiency after 1000 h of maximum power point tracking under 1 sun illumination at 40 ± 5°C in N2 and 94% after aging at 85°C for 500 h in N2. This work demonstrates the effectiveness of suppressing crystallization-kinetic heterogeneity for homogeneous perovskite films, offering a general strategy for rationally fabricating high-performance thin-film optoelectronic devices.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74895"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Spatial-Compatibility-Assisted Molecular Intercalation in MXenes. MXenes的空间相容性辅助分子嵌入。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74797

Minhao Sheng, Xiaoqing Bin, Xiangyang Liu, Yingji Zhao, Wenxiu Que, Yusuke Asakura, Yusuke Yamauchi

{"title":"Spatial-Compatibility-Assisted Molecular Intercalation in MXenes.","authors":"Minhao Sheng, Xiaoqing Bin, Xiangyang Liu, Yingji Zhao, Wenxiu Que, Yusuke Asakura, Yusuke Yamauchi","doi":"10.1002/adma.74797","DOIUrl":"https://doi.org/10.1002/adma.74797","url":null,"abstract":"MXenes have emerged as versatile platforms for electrochemical energy storage, stimuli-responsive systems, and nanofluidic technologies, owing to their compositionally tunable surfaces and diverse intercalation chemistries. Although ion intercalation in aqueous or organic media is widely employed to modulate the interlayer structure and electronic state of MXenes, the identification of compatible intercalants remains largely empirical. A generally accepted quantitative framework for evaluating the feasibility of guest incorporation into MXene hosts has not yet been established. Here, we propose a general steric-compatibility criterion, in which intercalation becomes geometrically feasible when the effective 3D size of an intercalant molecule, as defined from its molecular crystal structure (i.e., considering a single molecule in the crystalline state), is comparable to or smaller than the interlayer spacing (Δd) created by Al extraction in the parent MAX phase. Guided by this principle, a series of sterically compatible small molecules can be screened, and their intercalation/etching behavior can be rationalized. This study establishes a universal geometry-based guideline for evaluating guest-host compatibility in 2D MXene systems and lays the foundation for predictive design of MXene intercalation chemistries.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74797"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Kinetic Management of Vertical Phase Separation via Thermal Annealed Donor-Assisted Sequential Deposition Enables 20.81% Efficiency in Organic Solar Cells. 通过热退火供体辅助顺序沉积的垂直相分离动力学管理使有机太阳能电池效率达到20.81%。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74911

Shizhao Liu, Fan Feng, Wentao Zou, Xuanqing Cao, Yuanyuan Kan, Huajun Xu, Xunchang Wang, Jianan Zheng, Shengnan Liu, Xianshao Zou, Guangye Zhang, Xichang Bao, Renqiang Yang, Yanna Sun, Ke Gao

{"title":"Kinetic Management of Vertical Phase Separation via Thermal Annealed Donor-Assisted Sequential Deposition Enables 20.81% Efficiency in Organic Solar Cells.","authors":"Shizhao Liu, Fan Feng, Wentao Zou, Xuanqing Cao, Yuanyuan Kan, Huajun Xu, Xunchang Wang, Jianan Zheng, Shengnan Liu, Xianshao Zou, Guangye Zhang, Xichang Bao, Renqiang Yang, Yanna Sun, Ke Gao","doi":"10.1002/adma.74911","DOIUrl":"https://doi.org/10.1002/adma.74911","url":null,"abstract":"Sequential deposition (SD) process has emerged as a key method for precisely controlling the active layer morphology, which is crucial for enhancing the photovoltaic performance of organic solar cells (OSCs). However, conventional SD methods often face challenges such as interfacial erosion and disordered crystallization, which limit further efficiency improvements. Herein, we report a novel thermally annealed donor-assisted sequential deposition (TD-SD) strategy aimed at modulating the film-formation kinetics during the SD process. By pre-annealing the donor layer, an ordered donor molecular packing is formed. Moreover, the thermal effect provided by the donor accelerated the aggregation kinetics of the acceptor, which helps mitigate the erosion of the donor by the acceptor. Therefore, a more pronounced vertical gradient distribution is formed. Such an optimized morphology promotes exciton dissociation and charge transport. Consequently, the devices based on TD-SD strategy exhibit superior photovoltaic performance, with the champion device achieving a power conversion efficiency (PCE) of 20.35%, up from 18.65% for the D18-Cl/L8-BO device. Notably, the strategy also enabled a high PCE of 20.81% (certified as 20.25%) in the D18-Cl/L8-BO:BTP-eC9 system, placing it among the top-performing OSCs. This study offers a practical route for precisely controlling the morphology of OSCs processed via SD processing.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74911"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recent Progress in Understanding and Improving Stability of Organic Transistors. 有机晶体管稳定性研究进展。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74892

Yongxu Hu, Yinan Huang, Zhongwu Wang, Xiaosong Chen, Liqiang Li

{"title":"Recent Progress in Understanding and Improving Stability of Organic Transistors.","authors":"Yongxu Hu, Yinan Huang, Zhongwu Wang, Xiaosong Chen, Liqiang Li","doi":"10.1002/adma.74892","DOIUrl":"https://doi.org/10.1002/adma.74892","url":null,"abstract":"Organic field-effect transistor (OFET) is a fundamental building block of flexible circuits. However, their practical application is limited by the instability during both operation and storage. This instability is the product of two primary factors: chemical degradation-where environmental factors like oxygen and water disrupt the molecular integrity of organic semiconductors (OSCs) through redox reactions-and physical degradation, which involves undesirable changes in the charge and aggregate states of OSCs. This review systematically explores these degradation mechanisms under various stressors and the corresponding stabilization strategies. We critically evaluated the advancements in both chemical approaches by suppressing redox reactions and physical approaches by stabilizing charge and aggregate states, offering a comprehensive framework for improving overall device stability. Finally, we outline future research directions such as developing collaborative stabilization strategies and rebuilding basic charge transport theories. This review aims to narrow the gap between fundamental research on OFETs and their practical applications and to promote the realization of intricate organic circuits in the near future.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74892"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Electron-Extracting Pd Single Atoms Arrest Solar Photooxidative Upcycling of Waste Polyesters at Glycolaldehyde. 电子提取Pd单原子阻止废聚酯在乙醇醛下的太阳光氧化升级循环。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74917

Guanqi Yu, Kaizhou Kong, Xiangkun Jia, Feifei Fan, Yingying Zhao, Chunli Wang, Wei Liu, Pengfei Wang, Sihui Zhan

{"title":"Electron-Extracting Pd Single Atoms Arrest Solar Photooxidative Upcycling of Waste Polyesters at Glycolaldehyde.","authors":"Guanqi Yu, Kaizhou Kong, Xiangkun Jia, Feifei Fan, Yingying Zhao, Chunli Wang, Wei Liu, Pengfei Wang, Sihui Zhan","doi":"10.1002/adma.74917","DOIUrl":"https://doi.org/10.1002/adma.74917","url":null,"abstract":"Selective solar oxidation of ethylene glycol (EG) derived from waste poly(ethylene terephthalate) (PET) to glycolaldehyde (GAld) is hindered by the high reactivity of the aldehyde intermediate, which readily undergoes overoxidation and C─C cleavage. Here, we report an exfoliated polymeric carbon nitride (PCN) photocatalyst with atomically dispersed Pd sites (PdSA/PCN) that arrests EG photooxidation at the C2 aldehyde stage. In PET hydrolysate, optimized PdSA/PCN achieves a GAld formation rate of 2479 µmol gcat -1 h-1 with 92.8% selectivity; in gram-scale upgrading of real PET waste, the selectivity reaches 95.9%. Mechanistic studies suggest that Pd single atoms function as electron-extraction centers, removing electrons from long-lived, low-energy localized states in PCN and increasing surface-accessible holes for selective alcohol dehydrogenation. Meanwhile, Pd sites strengthen EG adsorption and lower the barrier for initial O─H activation, favouring alkoxy intermediates while limiting ·OH-type overoxidation and C─C scission. The catalyst converts diverse real polyester wastes under fluctuating natural sunlight while maintaining >90% GAld selectivity. Coupled techno-economic and geospatial analyses identify priority deployment regions with a median annual net profit of US$5.95 million, highlighting the potential of single-atom materials for solar plastic upcycling to C2 platform molecules.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74917"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A Poly(lactic Acid)-Porphyrin-Cobalt Vaccine Adjuvant System Elicits Protein- or Peptide-Specific Humoral and Cellular Immunity. 聚乳酸-卟啉-钴疫苗佐剂系统引发蛋白或肽特异性体液和细胞免疫。

IF 29.1 1区材料科学

Advanced Materials Pub Date : 2026-09-04 DOI: 10.1002/adma.74905

Lisen Lu, Deqiang Deng, Jinfeng Sun, Yuanyuan Geng, Ruohan Wang, Zihan Deng, Li Liu, Xiujuan Shi, Jonathan F Lovell, Muyang Yang, Honglin Jin

{"title":"A Poly(lactic Acid)-Porphyrin-Cobalt Vaccine Adjuvant System Elicits Protein- or Peptide-Specific Humoral and Cellular Immunity.","authors":"Lisen Lu, Deqiang Deng, Jinfeng Sun, Yuanyuan Geng, Ruohan Wang, Zihan Deng, Li Liu, Xiujuan Shi, Jonathan F Lovell, Muyang Yang, Honglin Jin","doi":"10.1002/adma.74905","DOIUrl":"https://doi.org/10.1002/adma.74905","url":null,"abstract":"There is growing interest in vaccine adjuvant systems that are scalable, adaptable, and capable of stimulating humoral and cellular immune responses with recombinant protein or synthetic peptide immunogens. In this study, we introduced a \"plug-and-play\" nanoadjuvant system consisting of poly(lactic acid)-porphyrin-cobalt ion co-formulated with immunostimulatory saponin QS-21 (PPCoQ). PPCoQ facilitated subunit vaccine assembly by coordinating antigens' polyhistidine tags with immobilized cobalt (Co2+) within a porphyrin-modified poly(lactic acid). Using the receptor-binding domain (RBD) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a model antigen, the resulting nanovaccine, PPCoQ-RBD, induced high levels of anti-RBD antibodies in transgenic mice expressing human ACE2. Following viral challenge, immunized mice achieved a 99.7% clearance rate of the SARS-CoV-2 Omicron variant, demonstrating strong humoral and cellular immune responses. Additionally, PPCoQ-RBD was compatible with nebulization-based inhalation, which enhanced mucosal immunity, increased IgA antibody titers, and promoted the formation of abundant tissue-resident memory T cells. A model T cell epitope (OVA) was formulated to evaluate cellular responses, generating PPCoQ-OVA, which significantly inhibited B16-OVA tumor growth. The PPCoQ vaccine adjuvant system is easy to produce and supports efficient antigen loading, lymph node targeting, lysosomal escape, and biocompatibility, and has broad prospects for application and clinical translation.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e74905"},"PeriodicalIF":29.1,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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