Advanced Energy Materials最新文献_第2页

Asymmetric C–C Coupling Driven by Heterostructured Ag–Bi Electrocatalyst Enables Selective CO 2 Reduction to Ethanol for Microbial Growth 异质结构Ag-Bi电催化剂驱动的不对称C-C耦合使微生物生长的co2选择性还原为乙醇

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-16 DOI: 10.1002/aenm.71707

Zexin Xu, Miao Liu, Yanfeng Shi, Fei Li, Jin Liu, Yuanhong Xu

{"title":"Asymmetric C–C Coupling Driven by Heterostructured Ag–Bi Electrocatalyst Enables Selective CO 2 Reduction to Ethanol for Microbial Growth","authors":"Zexin Xu, Miao Liu, Yanfeng Shi, Fei Li, Jin Liu, Yuanhong Xu","doi":"10.1002/aenm.71707","DOIUrl":"https://doi.org/10.1002/aenm.71707","url":null,"abstract":"Electrocatalytic CO 2 reduction (eCO 2 RR) coupled with microbial fermentation offers a promising route for carbon valorization, but faces dual challenges from toxic C 1 byproducts (e.g. formate) and poor long‐term catalytic stability. Herein, we present a heterostructured Ag–Bi electrocatalyst (Ag 1.65 @Bi 2 O 3 ) with interfacial synergy that drives asymmetric C–C coupling, enabling highly selective conversion of CO 2 to ethanol with a Faradaic efficiency of 87.00% and stable operation for 324 h at ‐0.9 V vs RHE. In situ Fourier transform infrared spectroscopy and density functional theory calculations further reveal an asymmetric coupling pathway between *CO and *CHO intermediates, thereby reducing the C–C coupling energy barrier for ethanol production. The obtained liquid stream exhibits no formate toxicity and can be directly utilized by Saccharomyces cerevisiae in an integrated electrochemical‐microbial system for yeast production with a yield of 1.05 ± 0.04 g L −1 , which is 35% higher than that of the single fermentation system. This study provides a paradigm for realizing a coupling system of eCO 2 RR and microbial fermentation.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"10 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198926","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

Electrochemical and Mechanical Understanding of Extruded and Solvent‐Cast Solid Polymer Electrolytes 挤压和溶剂铸造固体聚合物电解质的电化学和力学理解

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-16 DOI: 10.1002/aenm.71697

Elene Sasieta‐Barrutia, June Blanco, Laida Otaegui, Aizeti Burgoa, Mikel Isasi, Michel Armand, Rikardo Hernandez, Aitor Villaverde, Maria C. Morant‐Miñana

{"title":"Electrochemical and Mechanical Understanding of Extruded and Solvent‐Cast Solid Polymer Electrolytes","authors":"Elene Sasieta‐Barrutia, June Blanco, Laida Otaegui, Aizeti Burgoa, Mikel Isasi, Michel Armand, Rikardo Hernandez, Aitor Villaverde, Maria C. Morant‐Miñana","doi":"10.1002/aenm.71697","DOIUrl":"https://doi.org/10.1002/aenm.71697","url":null,"abstract":"Solid polymer electrolytes (SPEs) based on Poly(ethylene oxide)‐Lithium bis (trifluoromethanesulfonyl)imide (PEO–LiTFSI) are promising materials for solid‐state batteries. A comprehensive evaluation was conducted on their electrochemical and mechanical properties, with SPEs prepared via two processing methods: extrusion and solvent casting. The effects of Al 2 O 3 addition and membrane thickness on SPE performance and cyclability were investigated. Electrochemical characterization showed that extrusion enhanced SPE properties by shortening polymer chains, while the presence of Al 2 O 3 improved membrane stability. Thicker membranes exhibited larger polarization gradients, slower ion diffusion, and lower Sand times, leading to reduced electrochemical performance. Mechanical properties, including yield stress, storage modulus, and fracture toughness, were assessed using rheology and dynamic mechanical analysis. Extruded SPEs displayed higher stiffness and greater resistance to dendrite formation than solvent‐cast membranes. Monotonic crack growth tests indicated that the presence of Al 2 O 3 increased fracture toughness, enhancing crack resistance and potentially extending cycle life. Overall, membranes produced via extrusion, containing Al 2 O 3 , and optimized for reduced thickness, combined superior electrochemical properties, making them strong candidates for solid‐state battery applications, as demonstrated by their incorporation in multilayer cells.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"90 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198919","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

Near‐Micron Single‐Crystalline Mn‐Rich Cathodes With Exceptional Cycling Stability 具有优异循环稳定性的近微米单晶富锰阴极

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-15 DOI: 10.1002/aenm.71701

Eunryeol Lee, Tucker Holstun, Tara Mishra, Maciej Moździerz, Shilong Wang, Yanbao Fu, Peter Ercius, Alexander Pattison, Satoshi Hiroi, Koji Ohara, Vincent Battaglia, Haegyeom Kim, Akira Miura, Gerbrand Ceder

{"title":"Near‐Micron Single‐Crystalline Mn‐Rich Cathodes With Exceptional Cycling Stability","authors":"Eunryeol Lee, Tucker Holstun, Tara Mishra, Maciej Moździerz, Shilong Wang, Yanbao Fu, Peter Ercius, Alexander Pattison, Satoshi Hiroi, Koji Ohara, Vincent Battaglia, Haegyeom Kim, Akira Miura, Gerbrand Ceder","doi":"10.1002/aenm.71701","DOIUrl":"https://doi.org/10.1002/aenm.71701","url":null,"abstract":"Achieving high‐energy‐density and long‐term cycling stability in Mn‐redox‐based cathodes is a critical step toward advancing Ni‐ and Co‐free Li‐ion chemistries to diversify supply chains and lower battery costs. Here, we demonstrate an unusually high performance benchmark for Mn‐redox cathodes using near‐micron single‐crystalline δ‐phase cation‐disordered rocksalt (δ‐DRX), derived from Mn‐rich DRX, delivering ≈640 Wh kg −1 with ≈97% capacity retention over 400 cycles. The very high energy density and cycle life were achieved by using a high Mn content, to suppress oxygen redox activity, and careful control of the synthesis parameters to tune single crystal particle size. Using high‐throughput automated electron microscopy, we identify interparticle compositional heterogeneity present in the early stage of phase‐pure DRX formation as the origin of orthorhombic LiMnO 2 impurity formation during cooling, a finding that rationalizes the long high‐temperature dwell times required and the associated particle coarsening in conventional synthesis. We demonstrate that an accelerated cooling strategy kinetically suppresses localized impurity formation, reducing long high‐temperature exposure, and enables downsizing of single‐crystalline Mn‐rich DRX particles to the near‐micron regime (D50 = 1.5 µm). This work provides a mechanistic basis for particle‐size control in Mn‐rich DRX synthesis, and presents δ‐DRX as a stable, sustainable, high‐performance, Ni‐ and Co‐free cathode material.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"26 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172995","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

Stress Regulation through Precursor Chemistry: From Synthesis to Cycling Stability in O3‐Type Layered Oxide Cathodes 通过前驱体化学的应力调节：从O3型层状氧化物阴极的合成到循环稳定性

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-15 DOI: 10.1002/aenm.71699

Qian Li, Changyan Hu, Huan Yang, Haoyu Li, Waiqiao Li, Ruoyang Wang, Guanlin Lv, Peidong Li, Zhenguo Wu, Xiaodong Guo

{"title":"Stress Regulation through Precursor Chemistry: From Synthesis to Cycling Stability in O3‐Type Layered Oxide Cathodes","authors":"Qian Li, Changyan Hu, Huan Yang, Haoyu Li, Waiqiao Li, Ruoyang Wang, Guanlin Lv, Peidong Li, Zhenguo Wu, Xiaodong Guo","doi":"10.1002/aenm.71699","DOIUrl":"https://doi.org/10.1002/aenm.71699","url":null,"abstract":"Layered oxide cathode materials have broad application prospects in sodium‐ion batteries. However, conventional oxide solid‐state synthesis route, transition metal oxides slowly participate in the reaction step by step, causing residual stress accumulation and cycling degradation. Herein, a synthesis strategy utilizing low‐melting‐point metal salt precursors is proposed. Leveraging their synchronous decomposition and liquid‐like characteristics, a uniform chemical environment is generated, fundamentally suppressing the uneven accumulation of residual stress. Thermal analysis and kinetic calculations demonstrated that the reaction activation energy of the metal salt system (NFM‐A) was significantly reduced and exhibited a more stable variation profile. This effectively circumvented the asynchronous reaction process caused by diffusion kinetic differences inherent to the traditional oxide route (NFM‐O). Multiple experimental characterizations consistently confirmed that the residual stress of NFM‐A was low and uniformly distributed. After prolonged cycling, NFM‐A maintained a uniform lattice strain distribution with complete and dense particle morphology, while continuous stress concentration, interlayer slip, and particle cracking occurred in NFM‐O. Combined with in situ XRD and finite element simulations, the critical role of the initial stress distribution in maintaining structural integrity during electrochemical cycling is revealed. This establishes stress regulation as a key criterion for designing layered oxide cathode materials with high structural stability.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"10 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172620","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

Interfacial Dipole Reorganization Enables Ultrafast Sodium Storage in Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 Cathodes 界面偶极重组使钠在na4fe3 (po4) 2p2o7阴极上的超快存储成为可能

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-15 DOI: 10.1002/aenm.71711

Yuhang Xin, Hexiao Zhang, Kunyu Zhao, Yingshuai Wang, Qingbo Zhou, Yonghao Liu, Runqing Ou, Qianchen Wang, Hongcai Gao

{"title":"Interfacial Dipole Reorganization Enables Ultrafast Sodium Storage in Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 Cathodes","authors":"Yuhang Xin, Hexiao Zhang, Kunyu Zhao, Yingshuai Wang, Qingbo Zhou, Yonghao Liu, Runqing Ou, Qianchen Wang, Hongcai Gao","doi":"10.1002/aenm.71711","DOIUrl":"https://doi.org/10.1002/aenm.71711","url":null,"abstract":"As a promising cathode material for large‐scale sodium‐ion energy storage, Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 (NFPP) still suffers from sluggish Na + kinetics and insufficient electronic conductivity. Herein, we propose a bulk‐to‐interface coupling framework in which substitution‐induced electronic regulation propagates from the crystal lattice to the cathode surface, thereby reorganizing the adjacent electrolyte environment. This strategy is implemented by introducing Ni 2 + with high crystal‐field stabilization energy into NFPP. Ni 2+ substitution modulates the local electronic structure, strengthens Fe─O d‐p hybridization, and promotes medium‐range structural ordering. The resulting surface charge redistribution reshapes the interfacial electrostatic potential, suppresses solvent polarization and Na‐ClO 4 association, and facilitates interfacial Na + exchange. Consequently, the optimized cathode delivers 118 mAh g −1 at 0.1 C and retains 74% of its capacity after 10 000 cycles at 20 C. A pouch cell with a cathode areal capacity of 0.5 mAh cm −2 further demonstrates its feasibility in a full‐cell configuration. This work extends substitution chemistry beyond bulk transport optimization toward the deliberate regulation of electrode‐electrolyte interactions.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"9 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172617","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

Anion‐Driven Solvent Degradation Networks in High‐Concentration Battery Electrolytes 负离子量溶剂退化驱动网络高电池电解质浓度

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-15 DOI: 10.1002/aenm.71634

Esra Ulgey Akgun, Brett M. Savoie

{"title":"Anion‐Driven Solvent Degradation Networks in High‐Concentration Battery Electrolytes","authors":"Esra Ulgey Akgun, Brett M. Savoie","doi":"10.1002/aenm.71634","DOIUrl":"https://doi.org/10.1002/aenm.71634","url":null,"abstract":"High‐concentration electrolytes (HCEs) are investigated for their ability to form robust, inorganic‐rich solid electrolyte interphases (SEI). While the SEI composition in HCEs differs from that in dilute electrolytes, the specific anion‐mediated reaction network driving this transformation remain poorly understood. The network complexity and transient nature of the radical intermediates involved have precluded the development of a comprehensive mechanistic map of initial SEI formation. Here, the reaction networks governing anion‐mediated electrolyte degradation are established using automated reaction discovery and microkinetic modeling (MKM). The study encompasses the decomposition pathways of ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), and acetonitrile (AN) in the presence of reduced anion species derived from LiFSI and LiTFSI. The results reveal a kinetically accessible landscape for solvent decomposition driven by fluoride () and fragments, identifying specific pathways that favor the formation of inorganic LiF and open‐ring organic carbonates. Microkinetic modeling further indicates that acts as a rapidly consumed driver, shifting the product distribution toward thermodynamically stable fluoro‐organic species. These results provide a molecular‐level rationalization for the unique SEI chemistries observed in HCEs and suggest that tuning the anion‐solvent interaction is a viable pathway for controlling interphase growth.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"7 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172996","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

Efficient Cascade Abiotic Synthesis of Sugar From CO 2 从二氧化碳中高效级联合成糖的非生物研究

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-15 DOI: 10.1002/aenm.71709

Ruilin Wei, Yuhang Huang, Lu Song, Maoyin Wang, Haoran Ma, Ximeng Lv, Boyu Hou, Jun Wen, Shuya Hao, Gengfeng Zheng

{"title":"Efficient Cascade Abiotic Synthesis of Sugar From CO 2","authors":"Ruilin Wei, Yuhang Huang, Lu Song, Maoyin Wang, Haoran Ma, Ximeng Lv, Boyu Hou, Jun Wen, Shuya Hao, Gengfeng Zheng","doi":"10.1002/aenm.71709","DOIUrl":"https://doi.org/10.1002/aenm.71709","url":null,"abstract":"The capability of producing sugar compounds from carbon dioxide (CO 2 ), ideally based on abiotic systems, suggests an artificial, scalable strategy to provide potential solutions for both food and environmental issues. In this work, we report an inorganic, abiotic pathway for the synthesis of sugar from CO 2 without any enzymatic or biological components, comprising several electrocatalytic‐catalytic cascade reactions. CO 2 is first electrochemically reduced to ethylene (C 2 H 4 ) on a Cu catalyst, and then oxidized to ethylene glycol by hydrogen peroxide in situ generated from the O 2 reduction. Ethylene glycol is further oxidized into glycolaldehyde on a platinum catalyst, and the overall CO 2 ‐to‐glycolaldehyde Faradaic efficiency (FE) reaches ≈ 15.9%. Finally, the as‐formed glycolaldehyde is coupled into C 6+ sugar compounds (i.e., higher‐carbon carbohydrates products) via the Formose reaction, obviating the need to use biochemical/enzymatic reactions or any additional carbon‐based molecules. Using this cascade reaction, we demonstrated an efficient CO 2 ‐to‐sugar production rate of 2.1 g per day with a total carbon selectivity of 25.9%, featuring an attractive approach for producing sugars from CO 2 by renewable electricity.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"11 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172618","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

Redox-Buffering PEAI-CeOx Passivation Suppresses Thermo-Mechanical Degradation in Perovskite Solar Cells Under Rapid Thermal Cycling (Adv. Energy Mater. 38/2026) 氧化还原缓冲PEAI - CeO x钝化抑制钙钛矿太阳能电池在快速热循环下的热机械降解（Adv. Energy Mater. 38/2026）

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71521

George Kwesi Asare, Minwoo Lee, Joshua Sraku Adu, Ram Datt, Wing Chung Tsoi, Trystan Watson, Xiaojing Hao, Juhong Oh, Chang Eun Song, Behrang H. Hamadani, Jae Sung Yun, Helen Hejin Park

引用次数: 0

Functional Motif Directed Decoupling-Recoupling Strategy for Constructing Multi-Site Pt-Based Catalyst Toward Efficient Hydrogen Oxidation in Fuel Cells 功能基序定向解耦-重耦策略构建多位点铂基催化剂用于燃料电池高效氢氧化

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-08-25 DOI: 10.1002/aenm.71431

Xin Wang, Kang Liao, Wanqing Song, Yixiao Zou, Wenda Chen, Peng Cui, Sheng Zhao, Jinfeng Zhang, Jia Ding, Wenbin Hu, Xiaopeng Han

{"title":"Functional Motif Directed Decoupling-Recoupling Strategy for Constructing Multi-Site Pt-Based Catalyst Toward Efficient Hydrogen Oxidation in Fuel Cells","authors":"Xin Wang, Kang Liao, Wanqing Song, Yixiao Zou, Wenda Chen, Peng Cui, Sheng Zhao, Jinfeng Zhang, Jia Ding, Wenbin Hu, Xiaopeng Han","doi":"10.1002/aenm.71431","DOIUrl":"10.1002/aenm.71431","url":null,"abstract":"<div>\u0000 \u0000 <p>Hydrogen oxidation reaction (HOR) in alkaline media suffers from multiple challenges of sluggish kinetics, CO poisoning, and active-site degradation. Multi-metallic catalysts with multiple active sites hold promise for addressing the issues; however, they are thwarted by structural heterogeneity at the atomic level and reliance on empirical trial-and-error screening. Herein, we introduce a novel functional motif directed decoupling-recoupling strategy for the design of multi-site catalysts capable of super-active and durable HOR electrocatalysis. Leveraging the well-defined atomic coordinates for each element and superlattice ordering structure of the PtM intermetallic compound (IMC), the development of a multi-functional Pt-based HOR catalyst is decoupled into the independent screening of discrete Pt–M functional motifs. These optimally selected Pt–M motifs were subsequently recoupled into an L1<sub>0</sub>-PtFe framework, constructing the designed PtRuFeGaMo-I catalyst. PtRuFeGaMo-I integrates the multifunctionality of Pt–Ru/Ga/Mo motifs to simultaneously overcome the key limitations of alkaline HOR. Consequently, the engineered PtRuFeGaMo-I exhibits exceptional HOR performance. In an anion exchange membrane fuel cell (AEMFC), PtRuFeGaMo-I achieves a remarkable mass activity of 0.84 A mg<sub>total PGM</sub><sup>−1</sup>, surpassing commercial Pt/C and most reported noble-metal-based catalysts. This work provides a new platform to design advanced catalysts tailored to diverse electrocatalytic demands.</p>\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148836286","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

Local Coordination Asymmetry Engineering Activates Oxide Path Mechanism in Dopant‐Free RuO 2 for Ultra‐Durable Acidic Water Oxidation 局部配位不对称工程激活无掺杂二氧化氮超持久酸性水氧化的氧化路径机制

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71641

Ke Wang, Jindou Shi, Fulai Qi, Wen‐Gang Cui, Xinqiang Wang, Guoqiang Zhao, Fan Gao, Dingsheng Wang, Hongge Pan

{"title":"Local Coordination Asymmetry Engineering Activates Oxide Path Mechanism in Dopant‐Free RuO 2 for Ultra‐Durable Acidic Water Oxidation","authors":"Ke Wang, Jindou Shi, Fulai Qi, Wen‐Gang Cui, Xinqiang Wang, Guoqiang Zhao, Fan Gao, Dingsheng Wang, Hongge Pan","doi":"10.1002/aenm.71641","DOIUrl":"https://doi.org/10.1002/aenm.71641","url":null,"abstract":"Developing ruthenium‐based anode electrocatalysts to replace commercial iridium is crucial for reducing the cost of proton exchange membrane (PEM) water electrolysis. However, conventional RuO 2 suffers from limited long‐term stability and severe overoxidation drawbacks. Herein, we employ dynamic H 2 bubble template (DHBT)‐assisted electrodeposition combined with calcination to fabricate disorderly connected regular/irregular Ru‐O 6 octahedra. In situ experiments and theoretical calculations reveal that this local coordination asymmetry favors an oxide path mechanism (OPM) involving direct O‐O coupling while suppressing *OOH formation and substantial lattice‐oxygen participation. The optimized d‐RuO 2‐x catalyst requires an overpotential of only 154 mV to reach 10 mA cm −2 and maintains stable operation for over 3200 h at this current density. Crucially, in a PEM water electrolyzer, the catalyst operates robustly for over 2100 h at 200 mA cm −2 under continuous and start‐shutdown conditions. These results demonstrate that local coordination asymmetry engineering can tune OER pathway selection in dopant‐free RuO 2 ‐based catalysts and provide a promising route toward durable acidic OER anodes.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"22 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172624","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