@article{Zhang2025, 
author = {Rongyang Zhang and Qiangqiang Qiao and Binghui Yu and Zihao Zhang and Jiaao Wang and Shuai Li and Yujing Liu and Huadong Yuan and Jianmin Luo and Yao Wang and Shihui Zou and Peng Shi and Xinyong Tao and Jianwei Nai},
title = {Formation of CeO2/NiO composites with intergrowth superstructures for photocatalytic CO2 reduction},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {8},
pages = {94907657},
keywords = {self-assembly, nanostructures, photocatalytic CO2 reduction, composite structure, oxidize},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907657},
doi = {10.26599/NR.2025.94907657},
abstract = {The global climate crisis and the excessive consumption of fossil fuels have made photocatalytic CO2 reduction a promising strategy for achieving carbon neutrality. However, the inherent chemical inertness of CO2 and the rapid recombination of photogenerated charge carriers still limit its efficiency. In this study, a CeO2/NiO composite catalyst with an octahedral orthogonal structure was synthesized by oxidation treatment using a nickel-based cyanide-bridged metal frameworks as the precursor. Characterization analyses revealed that the CeO2/NiO composite structure significantly enhanced charge carrier separation efficiency through interfacial synergistic effects, while moderate surface lattice defects improved CO2 adsorption and activation. Under visible light irradiation, the CO generation rate of the CeO2/NiO reached 30.1 mmol·g−1·h−1, which was significantly higher than that of the original precursor, and it exhibited remarkable stability (with activity maintained at over 95% after five cycles). Mechanistic studies indicated that the optimized band structure provided sufficient thermodynamic driving force for CO2 reduction. The interfacial electron transfer channels facilitated the directional migration of photoelectrons, while surface oxygen vacancies optimized the adsorption energy of the critical intermediate (*COOH) through localized charge redistribution.}
}