NDLI: Oxygen electroreduction on CoSe$_{2}$ nanoparticles prepared via hydrothermal method in acidic medium

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Oxygen electroreduction on CoSe$_{2}$ nanoparticles prepared via hydrothermal method in acidic medium

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Chemical Research in Chinese Universities : Volume 31, Issue 2, April 2015

Chemical Research in Chinese Universities : Volume 31, Issue 1, February 2015

Chemical Research in Chinese Universities : Volume 30

Chemical Research in Chinese Universities : Volume 29

Oxygen electroreduction on CoSe$_{2}$ nanoparticles prepared via hydrothermal method in acidic medium

Content Provider	Springer Nature Link
Author	Zhao, Dongjiang Ma, Songyan
Copyright Year	2015
Abstract	CoSe$_{2}$ nanoparticles were synthesized via a facile hydrothermal method, and characterized by means of X-ray diffraction(XRD), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The synthesized CoSe$_{2}$ was composed of crystalline orthorhombic phase and displayed a morphology of short and thin nanobelts. The results of the catalyst experiment demonstrate that the CoSe$_{2}$ nanocrystals show high catalytic activity and methanol tolerance in oxygen reduction reaction(ORR) with an open circuit potential(OCP) of 0.80 V(vs. NHE) in 0.5 mol/L H$_{2}$SO$_{4}$ at 25 °C. The transfer process of about 3.7 electrons per oxygen molecule was determined during the reduction process and the transfer coefficient and Tafel slope were 0.50 and 118 mV, respectively, in the potential region of 0.64-0.75 V(vs. NHE). The high catalytic activity might be related to the high crystallization of the CoSe$_{2}$ powder and the modification of selenium on the cobalt element.
Starting Page	447
Ending Page	451
Page Count	5
File Format	PDF
ISSN	10059040
Journal	Chemical Research in Chinese Universities
Volume Number	31
Issue Number	3
e-ISSN	22103171
Language	English
Publisher	Jilin University and The Editorial Department of Chemical Research in Chinese Universities
Publisher Date	2015-05-10
Publisher Place	Changchun
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Non-noble metal catalyst Oxygen reduction Polymer electrolyte membrane fuel cell Chemistry/Food Science Analytical Chemistry Physical Chemistry Inorganic Chemistry Cobalt selenide Organic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Education

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