期刊
CARBON
卷 152, 期 -, 页码 16-23出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2019.05.073
关键词
-
资金
- Innovation Foundation of Huazhong University of Science and Technology [2017KFYXJJ164]
Design of hollow carbon structure by using metal-organic-frameworks (MOFs) precursors has come under the spotlight in electrochemical energy related applications due to its structure advantages. Here, a bimetal-based MOF (Zn and Fe) is adopted to synthesize hollow carbon nanobox with encapsulation of FeP nanoparticles. An unique core-shell architecture consisting of Zn-Fe Prussian blue analogue (PBA) core and polydopamine shell is first synthesized, followed by pyrolysis-oxidation-phosphorization process to prepare monodispersed FeP nanoparticles encapsulated in hollow carbon nanobox (denoted as FeP/HCNB). Electrochemical hydrogen evolution activity is chosen to investigate the structure advantage of FeP/HCNB. It achieves overpotentials of -88 mV and -180 mV at 10 mA cm(-2) in acidic and alkaline solutions, respectively, and continuous operation for 15 h (start at 20 mA cm(-2)). It is therefore expected that the synthetic strategy of nanobox would enlighten the preparation of various nano-structures for different applications. (C) 2019 Elsevier Ltd. All rights reserved.
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