Synthesis of a carbon-wrapped microsphere MoO2/Mo2C heterojunction as an efficient electrocatalyst for the oxygen reduction reaction and the hydrogen evolution reaction

被引：2
作者：
Cai, Jiannan [1 ]
Zhang, Xiaofeng [2 ,3 ]
Wang, Ting [2 ,3 ]
Shi, Yuande [1 ]
Lin, Shen [2 ,3 ]
机构：
[1] Fujian Polytech Normal Univ, Fuzhou 350300, Peoples R China
[2] Fujian Normal Univ, Coll Chem & Mat Sci, Fuzhou 350007, Peoples R China
[3] Fujian Prov Key Lab Adv Mat Oriented Chem Engn, Fuzhou 350007, Peoples R China
来源：
DALTON TRANSACTIONS | 2023年 / 52卷 / 39期
基金：
中国国家自然科学基金;
关键词：
NANOSHEETS; NANOPARTICLES; PERFORMANCE; GRAPHENE; ROBUST;
D O I：
10.1039/d3dt02537c
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The development of non-noble metal catalysts for the optimization of conversion and storage devices is an important research topic. Hence, the microsphere MoO2/Mo2C/C heterojunction composites, which play an important role in the oxygen reduction reaction (ORR) and the hydrogen evolution reaction (HER), were synthesized using the solvothermal-sintering method. The results revealed that the as-prepared composite exhibited better ORR and HER catalytic performances than those of MoO2/Mo2C and Vulcan XC-72R (carbon black), and approaching that of commercial Pt/C. At the same time, it has a superior methanol tolerance and electrochemical stability than that of the commercial Pt/C. The excellent performance may be attributed to the synergistic effect of the MoO2/Mo2C heterostructure, highly conductive Vulcan XC-72R, and oxygen vacancies (O-v). This research offers new insights into the design and synthesis of cost-effective, environmentally friendly heterojunction composite catalysts used as a high-performance cathode material in fuel cells and water splitting.
引用
收藏
页码：13991 / 14002
页数：12
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