Results 11 to 20 of about 556,189 (317)

Facile Preparation of Mesoporous MCM-48 Containing Silver Nanoparticles with Fly Ash as Raw Materials for CO Catalytic Oxidation

Micromachines, 2021
An environmentally friendly method was proposed to prepare mesoporous Mobil Composition of Matter No.48 (MCM-48) using fly ash as the silica source.
Dong Tian, Yonghong Chen, Xiaoyong Lu, Yihan Ling, Bin Lin   +4 more
doaj   +1 more source

Alcohol Fuel Cells at Optimal Temperatures [PDF]

, 2006
High-power-density alcohol fuel cells can relieve many of the daunting challenges facing a hydrogen energy economy. Here, such fuel cells are achieved using CsH2PO4 as the electrolyte and integrating into the anode chamber a Cu-ZnO/Al2O3 methanol steam ...
Boysen, Dane A., Chisholm, Calum R. I., Haile, Sossina M., Uda, Tetsuya   +3 more
core   +1 more source

Exploring PANI-TiN Nanoparticle Coatings in a PEFC Environment: Enhancing Corrosion Resistance and Conductivity of Stainless Steel Bipolar Plates

Energies, 2017
Electrochemically-deposited polymer-metal composites, although explored for various uses, have only recently attracted attention for metallic bipolar plates used in fuel cells.
Surbhi Sharma, Kun Zhang, Gaurav Gupta, Daniel G. Santamaria   +3 more
doaj   +1 more source

Lithium-mediated electrochemical nitrogen reduction: Mechanistic insights to enhance performance

iScience, 2021
Summary: Green synthesis of ammonia by electrochemical nitrogen reduction reaction (NRR) shows great potential as an alternative to the Haber-Bosch process but is hampered by sluggish production rate and low Faradaic efficiency.
Xiyang Cai, Cehuang Fu, Haldrian Iriawan, Fan Yang, Aiming Wu, Liuxuan Luo, Shuiyun Shen, Guanghua Wei, Yang Shao-Horn, Junliang Zhang   +9 more
doaj   +1 more source

Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode

Nature Communications, 2023
The corrosive anions (e.g., Cl−) have been recognized as the origins to cause severe corrosion of anode during seawater electrolysis, while in experiments it is found that natural seawater (~0.41 M Cl−) is usually more corrosive than simulated seawater (~
Sixie Zhang, Yunan Wang, Shuyu Li, Zhongfeng Wang, Haocheng Chen, Li Yi, Xu Chen, Qihao Yang, Wenwen Xu, Aiying Wang, Zhiyi Lu   +10 more
doaj   +1 more source

Gram-Scale Synthesis of Carbon-Supported Sub-5 nm PtNi Nanocrystals for Efficient Oxygen Reduction

Metals, 2022
The preparation of a high performance and durability with low-platinum (Pt) loading oxygen reduction catalysts remains a challenge for the practical application of fuel cells.
Minli Wang, Xu Chen, Wenwen Xu, Zhongfeng Wang, Peilei He, Zhiyi Lu   +5 more
doaj   +1 more source

Electrocatalysis in Solid Acid Fuel Cells [PDF]

, 2011
Solid state electrochemical reactions play a crucial role in many energy conversion devices, yet the pathways of many reactions remain unknown. The elusiveness of the reaction mechanisms is due, in part, to the complexity of electrochemical reactions ...
Louie, Mary W. C.
core   +1 more source

Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs

Nature Communications, 2022
Controlling O2 reduction pathways can help optimize catalytic activity and product selectivity. Here the authors report facile manipulation of 2e‒ /4e‒ pathways on Pt-coordinated motifs by varying the Pt site density or the coordination environment.
Jiajun Zhao, Cehuang Fu, Ke Ye, Zheng Liang, Fangling Jiang, Shuiyun Shen, Xiaoran Zhao, Lu Ma, Zulipiya Shadike, Xiaoming Wang, Junliang Zhang, Kun Jiang   +11 more
doaj   +1 more source

Multi-functional anodes boost the transient power and durability of proton exchange membrane fuel cells. [PDF]

, 2020
Proton exchange membrane fuel cells have been regarded as the most promising candidate for fuel cell vehicles and tools. Their broader adaption, however, has been impeded by cost and lifetime.
Cai, Mei, Jiao, Kui, Lemmon, John P, Li, Hexing, Li, Jinlai, Liu, Fang, Liu, Jing, Liu, Meilin, Lu, Yunfeng, Shen, Gurong, Soloveichik, Grigorii, Tongsh, Chasen, Wu, Hao Bin, Xu, Pengcheng, Zhu, Jian   +14 more
core  

Influence of PTFE on water transport in gas diffusion layer of polymer electrolyte membrane fuel cell

International Journal of Electrochemical Science, 2018
Hydrophobic coatings (PTFE) have been introduced in gas diffusion layers to improve the performance of fuel cells. Eight different cell configurations with various PTFE loading in cathode and anode GDLs were assembled.
Yanan Chen, Tian Tian, Zhaohui Wan, Fan Wu, Jinting Tan, Mu Pan   +5 more
doaj   +1 more source