Zinc–Air Batteries: A Ternary Ni46Co40Fe14 Nanoalloy‐Based Oxygen Electrocatalyst for Highly Efficient Rechargeable Zinc–Air Batteries (Adv. Mater. 46/2018)

In article number 1803372, Min Gyu Kim, Sang Kyu Kwak, Jaephil Cho, and co‐workers synthesize a Ni46Co40Fe14 ternary‐nanoalloy‐based oxygen electrocatalyst for Zn–air batteries by supercritical reaction and heat treatment. Both theoretical calculation and in situ X‐ray absorption spectroscopy demons...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2018-11, Vol.30 (46), p.n/a
Main Authors: Nam, Gyutae, Son, Yeonguk, Park, Sung O, Jeon, Woo Cheol, Jang, Haeseong, Park, Joohyuk, Chae, Sujong, Yoo, Youngshin, Ryu, Jaechan, Kim, Min Gyu, Kwak, Sang Kyu, Cho, Jaephil
Format: Article
Language:English
Subjects:
Charge transfer
Heat treatment
Materials science
Metal air batteries
Nanoalloys
oxygen evolution reaction
oxygen reduction reaction
Rechargeable batteries
Selective adsorption
supercritical reactions
ternary nanoalloys
Transition metals
X ray spectra
Zinc
Zinc-oxygen batteries
Zn–air batteries
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Summary:In article number 1803372, Min Gyu Kim, Sang Kyu Kwak, Jaephil Cho, and co‐workers synthesize a Ni46Co40Fe14 ternary‐nanoalloy‐based oxygen electrocatalyst for Zn–air batteries by supercritical reaction and heat treatment. Both theoretical calculation and in situ X‐ray absorption spectroscopy demonstrate that the Ni46Co40Fe14 can undergo site‐selective adsorption during oxygen reduction and evolution reactions due to the charge transfer between the transition metals, which is thought to be responsible for the high Zn–air‐battery performance.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201870346