Results 41 to 50 of about 2,049,740 (304)

Reversible perovskite electrocatalysts for oxygen reduction/oxygen evolution

Chemical Science, 2019
Reversible (bi-functional) ORR/OER electrocatalysts identified with the creation of mixed valent Mn perovskites and the Mn3+/Mn4+ surface redox couple.
Kieren Bradley, Kyriakos Giagloglou, Brian E. Hayden, Hugo Jungius, Chris Vian   +4 more
openaire   +5 more sources

Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells

Energies, 2010
Direct alkaline alcohol fuel cells (DAAFCs) have attracted increasing interest over the past decade because of their favourable reaction kinetics in alkaline media, higher energy densities achievable and the easy handling of the liquid fuels.
Eileen Hao Yu, Keith Scott, Ulrike Krewer   +2 more
doaj   +1 more source

Four-Electron Oxygen Reduction by Tetrathiafulvalene [PDF]

Journal of the American Chemical Society, 2011
The four-electron reduction of oxygen by tetrathiafulvalene (TTF) in acidified 1,2-dichloroethane and at the acidified water/1,2-dichloroethane interface has been observed. Spectroscopy and ion transfer voltammetry results suggest that the reaction proceeds by the fast protonation of TTF followed by the 4-electron reduction of oxygen to form water ...
Astrid J, Olaya, Peiyu, Ge, Jérôme F, Gonthier, Peter, Pechy, Clémence, Corminboeuf, Hubert H, Girault   +5 more
openaire   +2 more sources

A new direct technique for visualizing and measuring gas–liquid mass transfer around bubbles moving in a straight millimetric square channel [PDF]

, 2013
The present paper focuses on the local characterization of gas–liquid mass transfer in a straight millimetric square channel, as constituting the preliminary step required for performing gas–liquid reactions in such devices.
Dietrich, Nicolas, Gourdon, Christophe, Hebrard, Gilles, Jiménez, Miguel Angel, Loubière, Karine   +4 more
core   +3 more sources

Self-template synthesis of hollow flower-like NiCo2O4 nanoparticles as an efficient bifunctional catalyst for oxygen reduction and oxygen evolution in alkaline media

Nanotechnology Reviews, 2023
A method was proposed to synthesize hollow flower-like NiCo2O4 composed of porous nanosheets using a self-template approach. The unique structure is attributed to the synergistic effect of the Kirkendall effect and the Ostwald ripening mechanism.
Fu Lixiang, Ma Jingling, Zhang Zhikang, Wang Guangxin, Liu Yuliang, Li Wuhui   +5 more
doaj   +1 more source

Oxygen reduction reaction on electrochemically deposited sub-monolayers and ultra-thin layers of Pt on (Nb-Ti)2AlC substrate

Zaštita Materijala, 2022
Catalytic activity towards the oxygen reduction reaction (ORR) in 0.5 M H2SO4 was investigated at sub-monolayers and ultra-thin layers (corresponding to 10, 30 and 100 monolayers, (MLs)) of Pt electrochemically deposited on (Nb-Ti)2AlC substrate ...
Pajić Mila N. Krstajić, Nevenka R. Elezović, Piotr Zabinski   +2 more
doaj   +1 more source

Trimetallic Sulfide Hollow Superstructures with Engineered d‐Band Center for Oxygen Reduction to Hydrogen Peroxide in Alkaline Solution

Advanced Science, 2022
High‐performance transition metal chalcogenides (TMCs) as electrocatalysts for two‐electron oxygen reduction reaction (2e‐ORR) in alkaline medium are promising for hydrogen peroxide (H2O2) production, but their synthesis remains challenging. In this work,
Chaoqi Zhang, Ruihu Lu, Chao Liu, Jingyi Lu, Yingying Zou, Ling Yuan, Jing Wang, Guozhong Wang, Yan Zhao, Chengzhong Yu   +9 more
doaj   +1 more source

Graphene-Based Nanostructures in Electrocatalytic Oxygen Reduction

, 2018
Application of graphene-type materials in electrocatalysis is a topic of growing scientific and technological interest. A tremendous amount of research has been carried out in the field of oxygen electroreduction, particularly with respect to potential ...
Alammari, Allen, Cai, Chen, Conner, Farooque, Gong, Guo, Habibi, He, Huang, Ikeda, Jiang, Kim, Kimouche, Li, Li, Li, Liang, Lv, Ma, Ma, O’Hayre, Qu, Quesnel, Ramaswamy, Ren, Ruffieux, Saito, Shao, Sheng, Song, Tian, Wang, Wu, Wu, Yang, Yang, Zhang, Zhao, Zhao, Zheng, Zhong, Zhou, Zhu, Zoladek   +45 more
core   +1 more source

Mesoporous Nanocast Electrocatalysts for Oxygen Reduction and Oxygen Evolution Reactions [PDF]

Inorganics, 2019
Catalyzed oxygen evolution and oxygen reduction reactions (OER and ORR, respectively) are of particular significance in many energy conversion and storage processes. During the last decade, they emerged as potential routes to sustain the ever-growing needs of the future clean energy market.
Tatiana Priamushko, Rémy Guillet-Nicolas, Freddy Kleitz   +2 more
openaire   +4 more sources

Modification of Conductive Carbon with N‐Coordinated Fe−Co Dual‐Metal Sites for Oxygen Reduction Reaction

ChemElectroChem, 2023
Earth‐abundant commercial conductive carbon materials are ideal electrocatalyst supports but cannot be directly utilized for single‐atom catalysts owing to the lack of anchoring sites.
Saravanakumar Muthusamy, Dr. Amr Sabbah, Dr. Palani Sabhapathy, Dr. Yu‐Chung Chang, Dr. Tadesse Billo, Dr. Zeru Syum, Prof. Li‐Chyong Chen, Prof. Kuei‐Hsien Chen   +7 more
doaj   +1 more source