@article{Deng2022, 
author = {Zhiqin Deng and Li Li and Yuchun Ren and Chaoqun Ma and Jie Liang and Kai Dong and Qian Liu and Yonglan Luo and Tingshuai Li and Bo Tang and Yang Liu and Shuyan Gao and Abdullah M. Asiri and Shihai Yan and Xuping Sun},
title = {Highly efficient two-electron electroreduction of oxygen into hydrogen peroxide over Cu-doped TiO2},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {5},
pages = {3880-3885},
keywords = {Cu-doped TiO2, oxygen vacancy, Ti3+, two-electron oxygen reduction reaction, hydrogen peroxide},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3995-6},
doi = {10.1007/s12274-021-3995-6},
abstract = {Electrosynthesis of hydrogen peroxide (H2O2), as a sustainable alternative to the anthraquinone oxidation method, provides the feasibility of directly generating H2O2. Here, we report Cu-doped TiO2 as an efficient electrocatalyst which exhibits the excellent two-electron oxygen reduction reaction (2e− ORR) performance with respect to the pristine TiO2. The Cu doping results in the distortion of TiO2 lattice and further forms a large number of oxygen vacancies and Ti3+. Such Cu-doped TiO2 exhibits a positive onset potential about 0.79 V and high H2O2 selectivity about 91.2%. Moreover, it also shows a larger H2O2 yield and good stability. Density functional theory (DFT) calculations reveal that Cu dopant not only improves the electrical conductivity of pristine TiO2 but reduces the *OOH adsorption energy of active sites, which is beneficial to promote subsequently 2e− ORR process.}
}