Zeolitic imidazolate framework-derived Co-Fe@NC for rechargeable hybrid sodium-air battery with a low voltage gap and long cycle life

Gao, Haixing, Zhu, Siqi, Kang, Yao, Dinh, Duc Anh, Hui, Kwan San ORCID: https://orcid.org/0000-0001-7089-7587, Bin, Feng, Fan, Xi, Chen, Fuming, Mahmood, Azhar, Geng, Jianxin, Cheong, Weng Chon Max and Hui, Kwun Nam (2022) Zeolitic imidazolate framework-derived Co-Fe@NC for rechargeable hybrid sodium-air battery with a low voltage gap and long cycle life. ACS Applied Energy Materials, 5 (2). pp. 1662-1671. ISSN 2574-0962

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Developing low-cost, efficient electrocatalysts for the air electrode of high-performance rechargeable hybrid sodium-air batteries (HSABs) remains challenging. Herein, efficient bimetallic nanoparticles encapsulated in nitrogen-doped carbon (Co-Fe@NC) were developed for the oxygen reduction and evolution reactions in HSABs. The bimetallic Co-Fe@NC catalyst outperformed its monometallic counterparts in the oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) activity. The assembled HSAB, utilizing the Co-Fe@NC in the air electrode, exhibited a smaller voltage gap of 0.27 V and a higher power density of 5.39 mW/cm2 compared with the air electrode utilizing Pt/C + RuO2 (0.55 V, 4.79 mW/cm2). Furthermore, the round-trip efficiency of the assembled HSAB is up to 75.37% after 700 h of cycling at 0.1 mA/cm2, outperforming the benchmark HSAB with Pt/C + RuO2 (65.76% after 400 h). This work presents a promising strategy to prepare low-cost, efficient electrocatalysts to substitute the precious catalyst Pt/C + RuO2 in HSABs or other metal-air batteries for practical applications.

Item Type: Article
Additional Information: Funding Information: This work was funded by the Science and Technology Development Fund, Macau SAR (File Nos. 0191/2017/A3, 0041/2019/A1, 0046/2019/AFJ, and 0021/2019/AIR), University of Macau (File Nos. MYRG2017-00216-FST and MYRG2018-00192-IAPME), the UEA funding, the State Key Laboratory of Organic-Inorganic Composites (oic-202101002), Science and Technology Program of Guangzhou (2019050001), and National Key Research and Development Program of China (2019YFE0198000). F.C. acknowledges the Pearl River Talent Program (2019QN01L951). The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 52176141). Publisher Copyright: © 2022 American Chemical Society
Uncontrolled Keywords: bifunctional electrocatalyst,bimetallic materials,hybrid sodium−air battery,mof-derived materials,zeolitic imidazolate frameworks (zif),chemical engineering (miscellaneous),energy engineering and power technology,electrochemistry,materials chemistry,electrical and electronic engineering ,/dk/atira/pure/subjectarea/asjc/1500/1501
Faculty \ School: Faculty of Science > School of Engineering
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Depositing User: LivePure Connector
Date Deposited: 25 Apr 2024 10:31
Last Modified: 25 Apr 2024 10:32
URI: https://ueaeprints.uea.ac.uk/id/eprint/95009
DOI: 10.1021/acsaem.1c03073


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