Pt Nanoparticles Supported on Nitrogen-Doped Carbon-TiO2 Composite as a High-Performance Electrocatalyst for Methanol Oxidation

被引：10

作者：

Zhang, Jun ^{[1
]}

Chen, Jiao ^{[1
]}

Zhou, Fan ^{[1
]}

Zeng, Xuewen ^{[1
]}

Xing, An ^{[1
]}

Jia, Bi ^{[1
]}

Fan, Baoyan ^{[1
]}

Wang, Jun ^{[1
]}

Liu, Xiaoyan ^{[1
]}

机构：

[1] Chongqing Univ Sci & Technol, China Sch Met & Mat Engn, Chongqing Key Lab Nano Micro Composites & Devices, Chongqing 401331, Peoples R China

来源：

JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE | 2021年 / 18卷 / 01期

基金：

中国国家自然科学基金;

关键词：

polyaniline; nitrogen-doped carbon; TiO2; electrocatalyst; methanol electrooxidation; electrocatalysis; fuel cells; novel materials; CATALYST SUPPORT; OXYGEN REDUCTION; TIO2; NANOTUBES; GRAPHENE; EFFICIENT; NANOCRYSTALS; HOLLOW;

D O I：

10.1115/1.4046479

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Monodispersed Pt nanoparticles supported on a TiO2 and nitrogen-doped carbon composite (TiO2/NDC) were successfully synthesized via an efficient in situ self-assembly strategy and microwave-assisted polyol process. The Pt/TiO2/NDC catalyst exhibited superior electrocatalytic activity toward the methanol oxidation reaction (MOR). The electrochemically active surface area of the Pt/TiO2/NDC catalyst was twofold higher than that of the Pt/C/NDC catalyst. In addition, the Pt/TiO2/NDC catalyst revealed a better electrocatalytic activity and CO-tolerance as well as a stability toward the MOR. The combined characterization from Fourier transform infrared spectrum, Brunauer-Emmett-Teller surface area, scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometer, thermogravimetric analysis, inductively coupled plasma atomic emissions spectrometry, X-ray diffraction, and X-ray photoelectron spectroscopy analyses demonstrated that the superior catalytic performance and stability of the Pt/TiO2/NDC catalysts likely arose from the synergistic effect of their unique morphology and composition as well as the electronic effect between the TiO2/NDC and Pt. This electrocatalyst holds great promise for application in direct methanol fuel cells.

引用

页数：9

共 52 条

[1] Co@Co3O4 Encapsulated in Carbon Nanotube-Grafted Nitrogen-Doped Carbon Polyhedra as an Advanced Bifunctional Oxygen Electrode [J].