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Title: Core-shell carbon materials derived from metal-organic frameworks as an efficient oxygen bifunctional electrocatalyst
Authors: Wang, Zhijuan
Lu, Yizhong
Yan, Ya
Larissa, Thia Yi Ping
Zhang, Xiao
Wuu, Delvin
Zhang, Hua
Yang, Yanhui
Wang, Xin
Keywords: Zn-air Battery
Issue Date: 2016
Source: Wang, Z., Lu, Y., Yan, Y., Larissa, T. Y. P., Zhang, X., Wuu, D., et al. (2016). Core-shell carbon materials derived from metal-organic frameworks as an efficient oxygen bifunctional electrocatalyst. Nano Energy, 30, 368-378.
Series/Report no.: Nano Energy
Abstract: Noble-metal free and durable electrocatalysts with high catalytic activity toward oxygen reduction and evolution reactions are crucial to high-performance primary or rechargeable Zn-air batteries (ZnABs) and fuel cells. Herein, we report an efficient bifunctional electrocatalyst with core-shell structure obtained from ZIF-8@ZIF-67 through hydrothermal and carbonization treatment. The resulted material, i.e. highly graphitic carbon (GC, carbonized from ZIF-67) on nitrogen-doped carbon (NC, carbonized from ZIF-8) (NC@GC), combines the distinguished advantages of NC, including high surface area, presence of Co doping and high nitrogen content, and those of GC including high crystallinity, good conductivity and stability of GC. This unique core-shell structure with potential synergistic interaction leads to high activities towards oxygen reduction and oxygen evolution reactions. As a proof-of-concept, the as-prepared NC@GC catalyst exhibits excellent performance in the primary and rechargeable ZnABs. This study might inspire new thought on the development of carbon-based electrocatalytic materials derived from MOF materials.
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2016.10.017
Rights: © 2016 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Nano Energy, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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