Results 131 to 140 of about 28,718 (310)

Durability of a PtSn ethanol oxidation electrocatalyst

, 2014
A high-surface-area PtSn electrocatalyst supported on carbon was prepared by using a formic acid reduction method. The catalyst was characterized by X-ray fluorescence, X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron ...
Gonzalez Ernesto R, Zignani Sabrina C, Arico Antonino S, Arico, Antonino S, Baglio Vincenzo   +4 more
core   +1 more source

A High‐Current‐Tolerant Multimetallic Phosphide Electrode for Alkaline Water Electrolysis Toward Industrial Conditions

Advanced Science, EarlyView.
A phosphide‐modified multimetallic HER electrode achieves industrial‐level performance with minimal noble‐metal content. It delivers 1.7 A cm−2 at 2.0 V in 6 M KOH at 70°C and operates stably for over 200 h at 500 mA cm−2. Phosphorus tuning of the electronic structure optimizes hydrogen adsorption, offering a durable, high‐rate pathway for alkaline ...
Yang Li, Chunling Lu, Biao Wang, Dongchao Qiu, Bingbing Niu, Tao Feng   +5 more
wiley   +1 more source

Heteroatom doped graphdiyne as efficient metal-free electrocatalyst for oxygen reduction reaction in alkaline medium

, 2016
The commercialization of fuel cells and metal-air batteries can only be realized if expensive and scarce platinum-based catalysts are replaced by lower cost, efficient, and durable catalysts for the oxygen reduction reaction (ORR).
Liu, Jingjing, Li, Yuliang, Liu, Rongji, Liu, Huibiao, Li, Bin, Zhang, Shuangshuang, He, Hongyan, Zhang, Guangjin, Wang, Meng, Zhang, Yaqin, Cao, Hongbin, Cai, Yingjun   +11 more
core   +1 more source

Spin‐Selective Oxygen Evolution in Chiral Molecule‐Intercalated Layered Double Hydroxides

Advanced Science, EarlyView.
This hybrid electrocatalyst utilizes chiral phenylalanine intercalation within layered double hydroxides to boost oxygen evolution. Acting as a spin filter via the chiral‐induced spin selectivity effect, the material directs electron transfer along a lower‐energy pathway.
Chih‐Ying Huang, Cheng‐Rong Wu, Yang‐Sheng Lu, Yu‐Ying Chang, Chia‐Che Chang, Tsung‐Hsin Liu, Che‐Lun Lee, Jessie Shiue, Yu‐Chang Lin, Wei‐Tsung Chuang, Huang‐Ming Tsai, Ya‐Lun Ho, Jau‐Wern Chiou, Hua‐Shu Hsu, Shao‐Sian Li, Chia‐Chun Chen, Way‐Faung Pong, Chun‐Wei Chen   +17 more
wiley   +1 more source

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

Electrocatalytic Coupling Conversion of Methane by Dual‐Site Control in Nickel Oxyhydroxide

Advanced Science, EarlyView.
Electrocatalytic coupling conversion of methane (CH4) is accomplished on the nickel oxyhydroxide (NiOOH), wherein the Ni─O dual‐site is triggered via the proper electronic interaction, synergistically promoting the C─H activation and C─C formation, enabling a selective and efficient C2 product generation route under ambient conditions. ABSTRACT Methane
Kailong Lu, Yangshen Chen, Junhao Wang, Yi Zhang, Sunyang He, Huimin Xu, Hui Liu, Jiao Deng   +7 more
wiley   +1 more source

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

Advanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li, Xin Zhao, Arsenii S. Portniagin, Yuxuan Wu, Desui Chen, Haochen Liu, Andrey L. Rogach   +6 more
wiley   +1 more source

Vacancy‐Driven Ni Exsolution in Prussian Blue Analogues Creates Cooperative Defect–Metal Sites for Alkaline Hydrogen Evolution

Advanced Science, EarlyView.
Multimetal Prussian blue analogues (PBAs) are converted by low‐temperature Ar annealing into a cavity/CN‐vacancy architecture that triggers in situ Ni exsolution, creating dense Ni‐PBA interfacial motifs. These motifs optimize water dissociation and H* adsorption in alkaline media, delivering markedly accelerated HER kinetics and long‐term stability ...
Shiqi Wang, Haixian Yan, Hugo L. S. Santos, Md Mofakkharulhashan, Wenyi Huo, Pedro H. C. Camargo   +5 more
wiley   +1 more source

Laser Preset of MnOx Layer on High‐Entropy Alloy Surface for Ampere‐Level Ultra‐Stable OER Performance

Advanced Science, EarlyView.
3D printing enables a high entropy alloy‐derived, in situ formed MnOx overlayer that suppresses oxidation–reconstruction and mitigates anodic dissolution, while enhancing electrolyte wetting and bubble release to accelerate interfacial mass transport and OER kinetics.
Benzhi Wang, Ziyang Duan, Jeong Yeon Heo, Thu Ha Le, Byunggon Song, Sunhyeong Kwon, Ji Hoon Lee, Jonghwan Suhr, Hyung Mo Jeong   +8 more
wiley   +1 more source

A novel non-noble electrocatalyst for PEM fuel cell based on molybdenum nitride

, 2006
A novel non-noble electrocatalyst based on molybdenum nitride supported on carbon (Mo2N/C) prepared by temperature-programmed reaction (TPR) strategy was investigated as cathode electrocatalysts toward oxygen reduction reaction (ORR) in proton exchange ...
Yi, BL, Liu, G, Liang, YM, Hu, JW, 张华民, Zhong, HX, Zhang, HM   +6 more
core   +1 more source