@article {4619,
	title = {Regulating COOH Intermediate via Rationally Constructed Surface-Active Sites of Bi2WO6 for Solar-Driven CO2-to-CO Production},
	journal = {Advanced Functional Materials},
	volume = {n/a},
	year = {2025},
	note = {<p>n/a</p>
},
	month = {2025},
	pages = {2423751},
	publisher = {John Wiley \& Sons, Ltd},
	abstract = {<p>Abstract Solar-driven CO2 reduction holds great promise for sustainable energy, yet the role of atomic active sites in governing intermediate formation and conversion remains poorly understood. Herein, a synergistic strategy using Ni single atoms (SAs) and surface oxygen vacancies (Ov) is reported to regulate the CO2 reduction pathway on the Bi2WO6 photocatalyst. Combining in-situ techniques and theoretical modeling, the reaction mechanism and the structure-activity relationship is elucidated. In-situ X-ray absorption spectroscopy identifies Bi and Ni as active sites, and in-situ diffuse reflectance infrared Fourier transform spectroscopy demonstrates that adsorption of H2O and CO2 readily forms CO32? species on the Ov-rich catalyst. Optimally balancing Ni SAs and Ov lowers the energy barrier for the~formation and dehydration of a key COOH intermediate, leading to favorable CO formation and desorption. Consequently, a superior CO production efficiency of 53.49~{\textmu}mol~g?1 is achieved, surpassing previous reports on Bi2WO6-based catalysts for gas-phase CO2 photoreduction.</p>
},
	keywords = {active sites, COOH, Ni single atoms, oxygen vacancies, surface reaction},
	isbn = {1616-301X},
	url = {https://doi.org/10.1002/adfm.202423751},
	author = {Thang, Nguyen Quoc and Sabbah, Amr and Putikam, Raghunath and Huang,Chih-Yang and Lin, Tsai-Yu and Kamal Hussien, Mahmoud and Heng-Liang Wu and Lin, Ming-Chang and Chih-Hao Lee and Kuei-Hsien Chen and Li-Chyong Chen}
}
