Results 21 to 30 of about 6,370,943 (303)

Progress of Nonmetallic Electrocatalysts for Oxygen Reduction Reactions

open access: yesNanomaterials, 2023
As a key role in hindering the large-scale application of fuel cells, oxygen reduction reaction has always been a hot issue and nodus. Aiming to explore state-of-art electrocatalysts, this paper reviews the latest development of nonmetallic catalysts in oxygen reduction reactions, including single atoms doped with carbon materials such as N, B, P or S ...
Zhongmei Che   +10 more
openaire   +3 more sources

The Preparation and Electrochemical Properties of Perovskite La0.6Sr0.4CoO3-d for Catalytic Reduction of Oxygen

open access: yesInternational Journal of Electrochemical Science, 2017
La0.6Sr0.4CoO3-d powder in nanoscale was produced through flame spray synthesis (FSS), which was a process method of particles in large scale. Then, the catalytic performance of the powder as a bi- functional catalyst towards oxygen evolution reaction ...
Lining Fang
doaj   +1 more source

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

open access: yesInorganics, 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   +2 more
openaire   +4 more sources

Oxygen: problems and solutions in electrochemistry [PDF]

open access: yes, 2013
Different aspects of the electrochemistry of oxygen are examined through four experimental examples: corrosion, passivation via organic thin films, oxygen reduction and water oxidation catalysis are outlined in order to outline the very different ...
Bardini, Luca <1985>
core   +1 more source

Oxygen reduction reaction catalyst [PDF]

open access: yes, 2011
The present invention relates to catalysts for use in, inter alia, fuel cells. In particular, the invention relates to catalysts for the oxygen reduction reaction in fuel cells, and most particularly to non-metallic catalysts for the oxygen reduction ...
Davis, J   +4 more
core   +7 more sources

Transition metal oxide nanocatalysts for oxygen reduction reaction

open access: yesMaterials Science for Energy Technologies, 2018
Oxygen reduction reaction (ORR) is the most important reaction that occurs in the cathode surface of fuel cells. Its sluggish kinetics stimulated the researchers towards the development of inexpensive as well as efficient alternatives, to the precious ...
Chiranjita Goswami   +2 more
doaj   +1 more source

Effect of Anesthesia Gases on the Oxygen Reduction Reaction

open access: yesThe Journal of Physical Chemistry Letters, 2023
The oxygen reduction reaction (ORR) is of high importance, among others, because of its role in cellular respiration and in the operation of fuel cells. Recently, a possible relation between respiration and general anesthesia has been found. This work aims to explore whether anesthesia related gases affect the ORR.
Anu Gupta   +4 more
openaire   +2 more sources

“Green” Catalyst for the Oxygen Reduction Reaction in Ecological Metal-Air Systems [PDF]

open access: yes, 2020
Thermally treated caffeine doped active carbon (Caffeine-Norit) is studied as a catalyst for the oxygen reduction reaction (ORR) with application in metal-air systems and neutral aqueous electrolytes.
Tanja, Vidaković-Koch   +7 more
core   +1 more source

Multi-Walled Carbon Nanotube-Gold Nanocomposites toward Oxygen Reduction Reaction

open access: yesInternational Journal of Electrochemical Science, 2013
Multi-walled carbon nanotubes (MWCNTs) nanocomposites decorated with Au nanoparticles were prepared by the facile pyrolysis of AuCl3 dissolved in room temperature ionic liquids (RTILs) of 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) in the ...
Keqiang Ding   +8 more
doaj   +1 more source

Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs

open access: yesNature 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   +11 more
doaj   +1 more source

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