Results 141 to 150 of about 27,278 (305)

Beyond d‐Band Catalysis: A Critical Review and Descriptor Framework for Rare‐Earth Engineering in Lithium–Sulfur Batteries

Advanced Science, EarlyView.
Rare‐earth catalysts regulate lithium–sulfur battery chemistry through f‐orbital–mediated interactions, enabling simultaneous polysulfide adsorption and catalytic conversion on conductive carbon hosts. This synergistic control suppresses the shuttle effect, accelerates redox kinetics, and guides stable Li2S nucleation, providing a mechanistic framework
Fan Wang, Shihzad Shakil, Guozhi Wu, Jiarui Huang, Hanhui Lei, Terence Xiaoteng Liu   +5 more
wiley   +1 more source

Monosymmetric Fe-N4 sites enabling durable proton exchange membrane fuel cell cathode by chemical vapor modification

Nature Communications
The limited durability of metal-nitrogen-carbon electrocatalysts severely restricts their applicability for the oxygen reduction reaction in proton exchange membrane fuel cells. In this study, we employ the chemical vapor modification method to alter the
Jingsen Bai, Tuo Zhao, Mingjun Xu, Bingbao Mei, Liting Yang, Zhaoping Shi, Siyuan Zhu, Ying Wang, Zheng Jiang, Jin Zhao, Junjie Ge, Meiling Xiao, Changpeng Liu, Wei Xing   +13 more
doaj   +1 more source

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

Highly Reversible Zinc Anode Enabled by a Thiourea‐Derived Protective Layer for Alkaline Zinc Batteries

Advanced Science, EarlyView.
A ZnS/carbon nitride (ZnS/CN) protective coating is constructed on Zn anodes via ultrasonic spray coating, enabling uniform and stable Zn stripping/plating, suppressing dendrite formation, and mitigating parasitic side reactions, resulting in a prolonged cycling lifespan and high reversibility of the Zn anode in alkaline Zn–air batteries. ABSTRACT Zinc‐
Noam Navon, Alagar Raja Kottaichamy, Thamaraichelvan Marichelvam, Jonathan Tzadikov, Michael Volokh, Liel Abisdris, Alexander Upcher, Menny Shalom   +7 more
wiley   +1 more source

Atomic‐Level CuOx‐CoOx‐Pd Interfacial Engineering Enables Hierarchical Synergy for High‐Efficiency ORR Pathways and Boosted Power Output in Alkaline Fuel Cells

Advanced Science, EarlyView.
Atomically dispersed CuOx (CPCu‐1) forms isolated Cu–Ov sites that enable defect‐mediated O2 activation and fast electron/proton transfer via interfacial synergy. In contrast, thick CuOx clusters (CPCu‐10) promote a surface‐adsorption‐controlled pathway with intermediate accumulation, highlighting a mechanism switch from interfacial activation to ...
Yang‐Yang Hsu, Ching‐Hua Fan, Kuan‐Wen Wang, Kuang‐Kuo Wang, Nozomu Hiraoka, Hirofumi Ishii, Ting‐Shan Chan, Po‐Chun Chen, Tsan‐Yao Chen   +8 more
wiley   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

A Novel Non-Precious Electrocatalyst for Oxygen Reduction Reaction in PEMFCs

, 2009
Proton exchange membrane fuel cells (PEMFCs) as an ideal power source conversion plant have attracted much attention due to their advantages of high power density, high efficiency and near zero emissions.
马原蔚, 张华民
core  

Reconstruction of Nickel Chalcogenide Induced Ruthenium Nanoparticles Embedding for Oxygen Evolution: Mechanism Switching Enables Enhanced Catalytic Activity

Advanced Science, EarlyView.
Ru nanoparticles supported nickel chalcogens (Ru/NiX, X = S, Se), which enable fast electrooxidation to form an adaptively Ru embedding structure, featured by the compressed Ru─O─Ni bridge bonds at the Ru/NiOOH interface. On the one hand, Ru nanoparticles have a high affinity for capturing the OH−, consequently increasing the *O radical coverage.
Yuewen Wu, Mingpeng Chen, Xinqi Chen, Huachuan Sun, Tong Zhou, Yun Chen, Dequan Li, Jin Zhang, Feng Liu, Hao Cui, Qingju Liu   +10 more
wiley   +1 more source

Photocatalytic Water Oxidation on BiVO4 Sheets with Different Exposures of Crystal Facet and the Electrocatalyst as an Oxidation Co-catalyst under Visible Light Irradiation

, 2012
Photocatalytic Water Oxidation on BiVO4 Sheets with Different Exposures of Crystal Facet and the Electrocatalyst as an Oxidation Co-catalyst under Visible Light ...
韩晶峰, 施晶莹, 朱剑, 李灿, 王冬娥, 李仁贵   +5 more
core  

Dynamic Reconstruction‐Engineered Heterointerfaces for Acidic Hydrogen Evolution at Ampere‐Level Current Density

Advanced Science, EarlyView.
A dynamic reconstruction strategy was utilized to construct PtCu/Cu3P heterostructures on the surface of self‐supporting Cu3P nanowires. The loose porosity in the restructured layer, together with a dynamic “dissolution‐redeposition” equilibrium during electrocatalysis, enables the electrode to maintain a low, stable overpotential for 240 h at ampere ...
Kaixi Wang, Yunshan Zheng, Chengzong Yuan, Kwun Nam Hui   +3 more
wiley   +1 more source