Results 131 to 140 of about 33,797 (295)

Novel Titanium Carbide (Ti3C2Tx) MXene electrocatalyst for HER application

NUST Journal of Engineering Sciences
Water electrolysis is a promising method for producing green hydrogen (H2), and two-dimensional (2D) materials are gaining more attention globally, especially in the field of energy conversion/storage devices, because of their special attributes.
Muhammad Yameen Solangi, Abdul Hanan, Umair Aftab, Imtiaz Ali Soomro, Zafar Hussain Ibupoto   +4 more
doaj   +1 more source

Electrocatalyst

, 2019
The Haber‐Bosch process can be replaced by the ambient electrocatalytic N2 reduction reaction (NRR) to produce NH3 if suitable electrocatalysts can be developed.
Qizhong Xiong, Zhao, Huijun, Han, Miaomiao, Wanbing Gong, Haimin Zhang, Zhang, Shengbo, Cuijiao Zhao, Zhao, Cuijiao, Yanyan Liu, Miaomiao Han, Guozhong Wang, Gong, Wanbing, Zhang, Haimin, Huijun Zhao, Wang, Guozhong, Liu, Yanyan, Shengbo Zhang, Xiong, Qizhong   +17 more
core   +1 more source

Influence of Ru Content on Defect Formation and Electrocatalytic Activity of Au‐Pd‐Pt‐Ru Compositionally Complex Solid Solution Thin Films for the Hydrogen Evolution Reaction

Advanced Science, EarlyView.
Transmission electron microscopy reveals that the formation of planar defects in Au–Pd–Pt–Ru CCSS thin films depends on Ru content, which in turn influences hydrogen evolution reaction electrocatalytic activity. As the Ru content increases, the density of nanotwins initially rises; with further Ru addition, stacking faults form.
Miran Joo, Huixin Xiu, Sabrina Baha, Ridha Zerdoumi, Ningyan Cheng, Christoph Somsen, Yujiao Li, Aleksander Kostka, Wolfgang Schuhmann, Alfred Ludwig, Christina Scheu   +10 more
wiley   +1 more source

Nanocluster‐Assisted OH Ligand Modification Optimizes Activity and Stability of Fe‐N‐C Catalysts

Advanced Science, EarlyView.
A nanocluster‐assisted ligand engineering stabilizes OH‐modified FeN4 active sites through strong electronic coupling between isolated Fe atoms and adjacent nanoclusters. This synergy optimizes oxygen‐intermediate adsorption, lowers ORR energy barriers, and breaks the conventional activity–stability trade‐off, enabling high ORR activity, exceptional ...
Xue Zhao, Junpeng Chen, Shice Wang, Zhao Yu, Jing Wang, Qiuming Peng, Ge Li   +6 more
wiley   +1 more source

Interfacial Tandem Catalysis Over a CuSn(OH)6/Co Heterostructure Enables Efficient Electroreduction of Nitrate to Ammonia

Advanced Science, EarlyView.
Interfacial tandem catalysis is developed for efficient electrochemical reduction of NO3− to NH3 over a CuSn(OH)6/Co heterostructure. CuSn(OH)6 accelerates the rate‐determining NO3−‐to‐*NO2 conversion, whereas Co promotes H2O dissociation to enhance *H supply for the rapid hydrogenation of *NO2 intermediate to NH3.
Yuan‐Yuan Hei, Qing Chen, Jie Gu, Yifan Leng, Yaping Huang, Sunhui Chen, Hong Sun, Hongfang Du   +7 more
wiley   +1 more source

Hybrid Metal–Organic Framework‐Derived Dual Active Site Catalysts Enabling Surface‐Enriched Cathode and Modified Zinc Anode for Long‐Life Zinc–Air Batteries

Advanced Science, EarlyView.
This work demonstrates the implementation of MOF‐assisted anode and cathode materials for prolonged cycling of zinc‐air batteries with strong redox capability and structural stability. ABSTRACT The surface modification of zinc anodes and the development of effective cathode dual‐functional oxygen electrocatalysts remain of paramount interest for ...
Ramasamy Santhosh Kumar, Duraisami Kaviyarasu, Dilmurod Sayfiddinov, Murugavel Kathiresan, Pandian Mannu, Chung‐Li Dong, Arul Manuel Stephan, Dong Jin Yoo   +7 more
wiley   +1 more source

Deciphering Structure‐Bubble‐Mass Transfer Relationships in Water Electrolysis Through Electrode Morphology Regulation

Advanced Science, EarlyView.
Electrode morphology is shown to govern oxygen‐bubble dynamics and interfacial mass transfer during water electrolysis. Positive‐curvature nanoneedles promote rapid release of small bubbles, sustain electrolyte renewal, and minimize mass‐transport losses, whereas flat and concave architectures increasingly retain bubbles.
Zhiqing Tang, Ziyun Zhang, Huicun Gu, Baoxin Wu, Kejun Yan, Jiahui Luo, Yuting Jiang, Cailin Xiao, Yu Xu, Lin Zeng   +9 more
wiley   +1 more source

Nickelferrite on Pnictogen Functionalized Carbon Nanohorns. Bifunctional ORR and OER Catalysts in Rechargeable Zinc‐Air Batteries

Advanced Science, EarlyView.
A systematic study on the performance of N,P‐doped NiFe2O4@CNH bi‐functional hybrid electrocatalysts for rechargeable zinc‐air batteries is presented. The importance of P, N‐doping and the intimate tethering of nickel‐ferrite nanocubes on the carbon nano‐horn (CNH) surface which are well dispersed on the surface of N,P doped CNHs.
Sudheer Kumar Yadav, Vanessa Trouillet, Jonas Lins, Torsten Gutmann, Jörg J. Schneider   +4 more
wiley   +1 more source

Synergistic Integration of Fe–N4 Single‐Atom Sites and Directionally Aligned Electrode Architecture for High‐Performance Lithium–Sulfur Batteries

Advanced Science, EarlyView.
A directionally ice‐templated sulfur cathode integrated with atomically dispersed Fe–N4 catalytic sites is developed for high‐performance lithium–sulfur batteries. The structure–catalysis synergy accelerates Li+ transport and polysulfide conversion, leading to high sulfur utilization and stable long‐term cycling performance.
Lin Shen, Yijia Zou, Yuming Wang, Erya Gao, Christopher S. Allen, Tianyi Zhang, Stephen J. Skinner, Nigel P. Brandon, Chun Huang   +8 more
wiley   +1 more source

Au icosahedrons as efficient electrocatalyst for glucose-based biofuel cells by strain engineering

, 2020
Au icosahedrons as efficient electrocatalyst for glucose-based biofuel cells by strain ...
X Yang (5161994), M Wu (8842364), Y Sui (7716416), J Ding (5323589), B Zou (13439538), Weiwei Lei (13099716), Z Fu (7776611)   +6 more
core