Results 11 to 20 of about 1,081,138 (206)

Hollow-Structure Pt-Ni Nanoparticle Electrocatalysts for Oxygen Reduction Reaction

open access: yesMolecules, 2022
An electrocatalyst with high oxygen reduction reaction (ORR) activity and high stability during start–stop operation is necessary. In this paper, hollow-structure Pt-Ni electrocatalysts are investigated as ORR catalysts.
Quan Wang   +5 more
doaj   +1 more source

Biomass-Derived Advanced Carbon-Based Electrocatalysts for Oxygen Reduction Reaction

open access: yesBiomass, 2022
Noble metal-based materials are enormously used as a cathode material for electrocatalytic oxygen reduction reaction (ORR), which plays an important role in determining the performance of energy conversion and storage devices such as fuel cells, metal ...
Srijib Das   +4 more
doaj   +1 more source

Analysis Method for Rotating Disk Voltammograms of Electrocatalytic Reaction —Oxygen Reduction Reaction—

open access: yesElectrochemistry, 2022
Rotating disk voltammograms of electrocatalytic reactions were often analyzed on a model of the totally irreversible reaction. The problem with the conventional method is pointed out, and the validity of an analysis method on a model of the ...
Yuko YOKOYAMA   +6 more
doaj   +1 more source

Oxygen Hydration Mechanism for the Oxygen Reduction Reaction at Pt and Pd Fuel Cell Catalysts [PDF]

open access: yes, 2011
We report the reaction pathways and barriers for the oxygen reduction reaction (ORR) on platinum, both for gas phase and in solution, based on quantum mechanics calculations (PBE-DFT) on semi-infinite slabs. We find a new mechanism in solution: O_2 → 2O_(
Goddard, William A., III   +4 more
core   +1 more source

Cross-linked CoMoO4/rGO nanosheets as oxygen reduction catalyst [PDF]

open access: yes, 2017
Development of inexpensive and robust electrocatalysts towards oxygen reduction reaction (ORR) is crucial for the cost-affordable manufacturing of metal-air batteries and fuel cells. Here we show that cross-linked CoMoO4 nanosheets and reduced graphene
Fu, Jiaqi   +7 more
core   +2 more sources

Nanostructured multifunctional electrocatalysts for efficient energy conversion systems: Recent perspectives

open access: yesNanotechnology Reviews, 2021
Electrocatalysts play a significant performance in renewable energy conversion, supporting several sustainable methods for future technologies. Because of the successful fabrication of distinctive oxygen reduction reaction (ORR), oxygen evolution ...
Rahman Sheikh Tareq   +2 more
doaj   +1 more source

Quantitative kinetic analysis on oxygen reduction reaction: A perspective

open access: yesNano Materials Science, 2021
Oxygen reduction reaction (ORR) constitutes the core process of many energy storage and conversion devices including metal–air batteries and fuel cells.
Juan Wang   +6 more
doaj   +1 more source

Single atomic cobalt electrocatalyst for efficient oxygen reduction reaction

open access: yeseScience, 2022
Robust oxygen reduction reaction (ORR) catalysts are essential for energy storage and conversion devices, but their development remains challenging. Herein, we design a single-atom catalyst featuring isolated Co anchored on nitrogen-doped carbon (Co-SAC ...
Peng Rao   +8 more
doaj   +1 more source

Bilirubin oxidase from myrothecium verrucaria physically absorbed on graphite electrodes. Insights into the alternative resting from and the sources of activity loss [PDF]

open access: yes, 2015
The oxygen reduction reaction is one of the most important chemical processes in energy converting systems and living organisms. Mediator-less, direct electro-catalytic reduction of oxygen to water was achieved on spectrographite electrodes modified by
Carmen Castro   +4 more
core   +3 more sources

Enhancement Mechanism of Pt/Pd-Based Catalysts for Oxygen Reduction Reaction

open access: yesNanomaterials, 2023
The oxygen reduction reaction (ORR) is one of the key catalytic reactions for hydrogen fuel cells, biofuel cells and metal–air cells. However, due to the complex four-electron catalytic process, the kinetics of the oxygen reduction reaction are sluggish.
Xinqun Zhang, Jiaqi Wang, Yang Zhao
doaj   +1 more source

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