Ning-Yu Huang, Bai Li, Duojie Wu, Di Chen, Yu-Tao Zheng, Bing Shao, Wenjuan Wang, Meng Gu, Lei Li, Qiang Xu
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Electronic regulation of single-atomic Ti sites on metal hydroxide for boosting photocatalytic CO2 reduction.
Photocatalytic CO2 reduction is considered a sustainable method to address energy and environmental issues by converting CO2 into fuels and chemicals, yet the performance is still unsatisfactory. Single atom catalysts hold promising potential in photocatalysis, but the selection of metal species is still limited, especially in early transition metals. Herein, inspired by the structure of anatase TiO2, single Ti sites were successfully incorporated into a metal hydroxide support for the first time via cationic defects, significantly enhancing the photocatalytic performance by more than 30 times (from 0.26 to 8.09 mmol g-1 h-1). Based on the theoretical calculation and in situ characterization, the enhancement of photocatalytic performance can be attributed to the regulation of the electronic structure by the introduction of atomically dispersed Ti sites, leading to stronger binding with intermediates and enhanced charge transfer.
期刊介绍:
Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.