@article{Sun2020, 
author = {Yue Sun and Yunjie Zhou and Yan Liu and Qingyao Wu and Mengmeng Zhu and Hui Huang and Yang Liu and Mingwang Shao and Zhenhui Kang},
title = {A photoactive process cascaded electrocatalysis for enhanced methanol oxidation over Pt-MXene-TiO2 composite},
year = {2020},
journal = {Nano Research},
volume = {13},
number = {10},
pages = {2683-2690},
keywords = {electrocatalysis, methanol oxidation reaction, photoelectrochemistry, photoactive process, cascade},
url = {https://www.sciopen.com/article/10.1007/s12274-020-2910-x},
doi = {10.1007/s12274-020-2910-x},
abstract = {Highly efficient photo-assisted electrocatalysis for methanol oxidation reaction (MOR) realizes the conversion of solar and chemical energy into electric energy simultaneously. Here we report a Pt-MXene-TiO2 composite for highly efficient MOR via a photoactive cascaded electro-catalytic process. With light (UV and visible light) irradiation, MXene-TiO2 serves as the photo active centre (photoinduced hole) to activate the methanol molecules, while Pt particles are the active centre for the following electro-catalytic oxidation of those activated methanol molecules. Pt-MXene-TiO2 catalyst exhibits a lower onset potential (0.33 V) and an impressive mass activity of 2,750.42 mA·mg-1Pt under light illumination. It represents the highest MOR activity ever reported for photo-assisted electrocatalysts. Pt-MXene-TiO2 also shows excellent CO tolerance ability and stability, in which, after long-term (5,000 s) reaction, still keeps a high mass activity of 1,269.81 mA·mg-1Pt (62.66% of its initial activity). The photo-electro-catalytic system proposed in this work offers novel opportunities for exploiting photo-assisted enhancement of highly efficient and stable catalysts for MOR.}
}