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- Title
N-doped carbon nanotubes supported CoSe<sub>2</sub> nanoparticles: A highly efficient and stable catalyst for H<sub>2</sub>O<sub>2</sub> electrosynthesis in acidic media.
- Authors
Zhang, Longcheng; Liang, Jie; Yue, Luchao; Xu, Zhaoquan; Dong, Kai; Liu, Qian; Luo, Yonglan; Li, Tingshuai; Cheng, Xiaohong; Cui, Guanwei; Tang, Bo; Alshehri, Abdulmohsen Ali; Alzahrani, Khalid Ahmed; Guo, Xiaodong; Sun, Xuping
- Abstract
Electrocatalytic oxygen reduction reaction (ORR) provides an attractive alternative to anthraquinone process for H2O2 synthesis. Rational design of earth-abundant electrocatalysts for H2O2 synthesis via a two-electron ORR process in acids is attractive but still very challenging. In this work, we report that nitrogen-doped carbon nanotubes as a multi-functional support for CoSe2 nanoparticles not only keep CoSe2 nanoparticles well dispersed but alter the crystal structure, which in turn improves the overall catalytic behaviors and thereby renders high O2-to-H2O2 conversion efficiency. In 0.1 M HClO4, such CoSe2@NCNTs hybrid delivers a high H2O2 selectivity of 93.2% and a large H2O2 yield rate of 172 ppm·h−1 with excellent durability up to 24 h. Moreover, CoSe2@NCNTs performs effectively for organic dye degradation via electro-Fenton process.
- Publication
Nano Research, 2022, Vol 15, Issue 1, p304
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-021-3474-0