Results 261 to 270 of about 1,091,496 (304)

Carbon-Free Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions

ACS Applied Materials & Interfaces, 2015
A nanoporous Ag-embedded SnO2 thin film was fabricated by anodic treatment of electrodeposited Ag-Sn alloy layers. The ordered nanoporous structure formed by anodization played a key role in enhancing the electrocatalytic performance of the Ag-embedded SnO2 layer in several ways: (1) the roughness factor of the thin film is greatly increased from 23 in
Yang, Yang, Huilong, Fei, Gedeng, Ruan, Lei, Li, Gunuk, Wang, Nam Dong, Kim, James M, Tour   +6 more
openaire   +3 more sources

Oxygen reduction on iron—IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions

Electrochimica Acta, 1991
Abstract The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was employed. Measurements were taken using the linear sweep technique and the potential step steady-state technique.
Zečević, Strahinja K., Dražić, Dragutin M., Gojković, Snežana Lj.   +2 more
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Catalyst Materials for Oxygen Reduction Reaction

2021
In order to prepare an oxygen reduction electrocatalyst with high catalytic performance, the catalyst is usually loaded on a carrier material with high specific area during the preparation process, this is because the catalyst carrier material can perform the functions of supporting and dispersing of active components, mass transfer, electricity, and ...
Yunyong Li, Chunyong He, Pei Kang Shen
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Electrocatalysts and Catalyst Layers for Oxygen Reduction Reaction

2014
In this chapter, to give some basic knowledge and concepts, some fundamentals about the catalyst activity and stability of oxygen reduction reaction (ORR) electrocatalysts, which are the targeted research systems by rotating electrode methods, are presented.
Feng, Ligang, Sun, Xiujuan, Yao, Shikui, Liu, Changpeng, Xing, Wei, Zhang, Jiujun   +5 more
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Microelectrochemical Detection of Reaction Products of Oxygen Reduction and Oxygen Evolution Reactions

ECS Meeting Abstracts, 2012
Abstract not Available.
Gunther Wittstock, Guy Denuault, Heinz Bülter, Janis Derendorf, Sebstian Pleis   +4 more
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The Oxygen Reduction Reaction in Alkaline Solution

ECS Meeting Abstracts, 2014
The oxygen reduction reaction (ORR) is one of the key reactions in electrochemical energy conversion devices like fuel cells [1-3]. Recently, as the high over-potential of ORR decreases the efficiency of these devices, various carbon-supported Pt catalysts have been studied in order to lower the over-potential of the ORR [3]. The aim of this work is to
Piia Ereth Kasatkin, Eneli Härk, Rutha Jäger, Enn Lust   +3 more
openaire   +1 more source

Investigating the Oxygen Reduction Reaction in Lithium-Oxygen Cells

ECS Meeting Abstracts, 2016
The rechargeable Lithium (Li)-Oxygen (O2) battery has great potential as a high energy battery system due to its high theoretical specific energy of 3505 Wh Kg-1, which is significantly higher than current Li-ion cells.1,2 However, to succeed as a practical replacement for Li-ion cells, Li-O2 cells must overcome known problems such as (i) poor cycle ...
Shrihari Sankarasubramanian, Nikhilendra Singh, Jeongwook Seo, Jai Prakash, Fuminori Mizuno   +4 more
openaire   +1 more source

Electro-Catalysis of Oxygen Reduction Reaction

ECS Transactions, 2010
This paper is a short review of the recent developments in understanding trends in electro-catalysis of the oxygen reduction reaction (ORR). Our focus is on atomic scale simulations at the density functional theory level. First, we investigate the models and the approximations that have been assumed, and thence we reach the conclusion that trends in ...
Jan Rossmeisl, Vladimir Tripković, George A. Tritsaris, Federico Calle-Vallejo   +3 more
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Advanced Biomass‐Derived Electrocatalysts for the Oxygen Reduction Reaction

Advanced Materials, 2017
AbstractRecent progress in advanced nanostructures synthesized from biomass resources for the oxygen reduction reaction (ORR) is reviewed. The ORR plays a significant role in the performance of numerous energy‐conversion devices, including low‐temperature hydrogen and alcohol fuel cells, microbial fuel cells, as well as metal–air batteries.
Lehtonen, Janika, Liu, Liang, Rojas, Orlando, J., Borghei, Maryam   +4 more
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Structural dependence of oxygen reduction reaction on palladium nanocrystals

Chemical Communications, 2011
Abstract not Available.
Shao, Minhua, Yu, T., Odell, J.H., Jin, M., Xia, Y.   +4 more
openaire   +3 more sources