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Cho, Jaephil
Nano Energy Storage Material Lab.
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Cu 97 P 3-x-y O x N y /NPC as a bifunctional electrocatalyst for rechargeable zinc-air battery

Author(s)
Yuan, BingNam, GyutaeLi, PingWang, ShuaiJang, HaeseongWei, TaoQin, QingLiu, XienCho, Jaephil
Issued Date
2019-05
DOI
10.1016/j.jpowsour.2019.03.024
URI
https://scholarworks.unist.ac.kr/handle/201301/26581
Fulltext
https://www.sciencedirect.com/science/article/pii/S0378775319302630?via%3Dihub
Citation
JOURNAL OF POWER SOURCES, v.421, pp.109 - 115
Abstract
Developing highly efficient and economically sustainable electrocatalysts with bifunctions for the oxygen reduction reaction and oxygen evolution reaction is crucially important in practical implementation of rechargeable zinc-air batteries. Herein, a novel Cu-based electrocatalyst composed of Cu 97 P 3-x-y O x N y nanoparticles supported on N, P co-doped carbon is synthesized straightforward by the annealing of the Cu-phytic acid gel under an argon and ammonia gases atmosphere. The Cu 97 P 3-x-y O x N y /N, P co-doped carbon catalyst displays the outstanding catalytic performance for both the oxygen evolution reaction and oxygen reduction reaction in alkaline solution, which is ascribed to the synergistic effect of Cu 97 P 3-x-y O x N y and N, P co-doped carbon. Meanwhile, the primary and rechargeable zinc-air batteries assembled by the Cu 97 P 3-x-y O x N y /N, P co-doped carbon catalyst exhibit a high specific capacity and remarkable charge-discharge cycle stability, which are comparable to that of the benchmark Pt/C and IrO 2 . The energy density of the catalyst reaches to 737 Wh kg Zn −1 . To the best of our knowledge, few Cu-based electrocatalysts is reported for rechargeable zinc-air batteries.
Publisher
Elsevier B.V.
ISSN
0378-7753
Keyword (Author)
Cu-based materialsNovel structureOxygen evolution reactionOxygen reduction reactionZinc-air batteries
Keyword
OXYGEN EVOLUTION REACTIONDOPED GRAPHENECATALYST LAYERREDUCTIONALKALINEPHOSPHORUSCO9S8

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