Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/113222
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Type: Journal article
Title: Active sites implanted carbon cages in core-shell architecture: highly active and durable electrocatalyst for hydrogen evolution reaction
Author: Zhang, H.
Ma, Z.
Duan, J.
Liu, H.
Liu, G.
Wang, T.
Chang, K.
Li, M.
Shi, L.
Meng, X.
Wu, K.
Ye, J.
Citation: ACS Nano, 2016; 10(1):684-694
Publisher: American Chemical Society
Issue Date: 2016
ISSN: 1936-0851
1936-086X
Statement of
Responsibility: 
Huabin Zhang, Zuju Ma, Jingjing Duan, Huimin Liu, Guigao Liu, Tao Wang, Kun Chang, Mu Li, Li Shi, Xianguang Meng, Kechen Wu and Jinhua Ye
Abstract: Low efficiency and poor stability are two major challenges we encounter in the exploration of non-noble metal electrocatalysts for the hydrogen evolution reaction (HER) in both acidic and alkaline environment. Herein, the hybrid of cobalt encapsulated by N, B codoped ultrathin carbon cages (Co@BCN) is first introduced as a highly active and durable nonprecious metal electrocatalysts for HER, which is constructed by a bottom-up approach using metal organic frameworks (MOFs) as precursor and self-sacrificing template. The optimized catalyst exhibited remarkable electrocatalytic performance for hydrogen production from both both acidic and alkaline media. Stability investigation reveals the overcoating of carbon cages can effectively avoid the corrosion and oxidation of the catalyst under extreme acidic and alkaline environment. Electrochemical active surface area (EASA) evaluation and density functional theory (DFT) calculations revealed that the synergetic effect between the encapsulated cobalt nanoparticle and the N, B codoped carbon shell played the fundamental role in the superior HER catalytic performance.
Keywords: N/B codoping; active surface area; catalysis; core/shell nanoparticles; hydrogen evolution reaction
Rights: © 2016, American Chemical Society
RMID: 0030041471
DOI: 10.1021/acsnano.5b05728
Appears in Collections:Chemical Engineering publications

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