Nitrogen-Rich Precursors Assisted Synthesis of Metal-Organic Framework-Derived Nanostructures as Bifunctional Catalysts for Electrochemical Sensing and Oxygen Reduction Reaction. Issue 2 (17th February 2021)

• Record Type: Journal Article
• Authors: Zhang, Wen; Chen, Haodong; Li, Xingxing; Qin, Haiying; Chi, Hongzhong; Yang, Dongjing; Fu, Degang
• Is Part Of: Journal of the Electrochemical Society. Volume 168:Issue 2(2021)
• Publication Date: 2021-02-17
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/abe3a0
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Exploring the structure and composition of catalysts to realize fast electron transfer in electrochemical reaction is a challenging part for the development of highly efficient electrocatalysts. Herein, nitrogen-doped carbon nanotube with encapsulated cobalt nanoparticles is synthesized via co-pyrolysis of zeolitic imidazolate framework and assisted nitrogen/carbon precursors with high N/C ratio. These precursor-dependent materials are served as catalysts for determination of hydrogen peroxide (H2 O2 ) and oxygen reduction reaction (ORR). Electrochemical measurement results suggest a strong relationship between N-doped types and electrochemical performance. The as-proposed ZU catalyst (urea as N-rich precursor) exhibits optimal electrocatalytic performance towards ORR and H2 O2 detection. Furthermore, ZU also can be a potential cathode candidate for direct borohydride fuel cell (DBFC).The synthesis strategy offers a new clue in constructing effective non-noble-metal catalysts for electrochemical applications.