Results 11 to 20 of about 117,550 (266)

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

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

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

High oxygen transport electrode with long-term stability for high-power and low Pt-loaded proton exchange membrane fuel cells

Nano Research
The reduction of Pt loading in cathode catalyst layers (CCLs) of proton exchange membrane fuel cells (PEMFCs) leads to increased local oxygen transport resistance (Rlocal) through the ionomer-Pt interface on triple phase boundaries (TPBs), as well as ...
Huiyuan Li, Jiabin You, Shu Yuan, Enping Wang, Xiaojing Cheng, Liuxuan Luo, Xiaohui Yan, Shuiyun Shen, Junliang Zhang   +8 more
doaj   +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

Revealing the Oxygen Transport Challenges in Catalyst Layers in Proton Exchange Membrane Fuel Cells and Water Electrolysis

Nano-Micro Letters
Highlights Mechanisms of the bulk and local oxygen transport in cathode catalyst layers (CCLs) in proton exchange membrane fuel cells (PEMFCs) are presented.
Huiyuan Li, Shu Yuan, Jiabin You, Congfan Zhao, Xiaojing Cheng, Liuxuan Luo, Xiaohui Yan, Shuiyun Shen, Junliang Zhang   +8 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Zinc-phosphorus nanodomains with dynamic coordination for electrochemical CO2 reduction

Nature Communications
Single-atom catalysts (SACs) are favored owing to their well-defined motifs and notable CO selectivity in electrochemical CO2 reduction. However, the dynamic coordination evolution under working conditions and the structure-activity relationships remain ...
Guiru Zhang, Ning Ji, Liuxuan Luo, Xiangrui Li, Peng Shen, Rui Xue, Shu Yuan, Junyi Huang, Congfan Zhao, Tianzi Bi, Xiaojing Cheng, Yangge Guo, Xiaohui Yan, Xiaozhi Su, Shuiyun Shen, Junliang Zhang   +15 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