Zinc-Based Materials for Photoelectrochemical Reduction of Carbon Dioxide
Zhichao Wang, Yanhui Wang, Shangbo Ning, Qing Kang
Abstract
As one of the most effective ways to convert carbon dioxide (CO2) into fuels and/or high-value-added chemicals, photoelectrochemical (PEC) reduction of CO2 will potentially alleviate both the environment and energy crises. Zinc-based materials are ideal PEC catalysts due to their variable energy band structures, wide sources, and environmental friendliness. However, the achievements and developmental trends of zinc-based PEC catalysts for CO2 reduction have not been systematically summarized. In this review, the principles of PEC CO2 reduction are briefly introduced. Various zinc-based PEC catalysts, including ZnO, Cu2ZnSnS4, Cu2ZnGeS4, ZnSe, ZnTe, Zn alloys, and a zinc porphyrin complex, for the reduction of CO2 are summarized. The challenges and future developing trends of these zinc-based PEC catalysts are prospected.