Atomically Thin Tin Dioxide Sheets for Efficient Catalytic Oxidation of Carbon Monoxide

摘要

The catalytic oxidation of CO using heterogeneous catalysts could provide one of the most promising ways for solving current urgent environmental pollution issues, because of its wide applications in automotive exhaust treatment, indoor air cleaning, and breathing apparatus. Unfortunately, the low catalytic activities and poor stabilities of conventional catalysts seriously impede their practical applications. Although pioneering studies have demonstrated that some noble metals, such as Au and Pd, could effectively catalyze CO oxidation, their high cost, low abundance, and rapid deactivation at elevated temperatures hinder their applicability. Recently, noble-metal-free catalysts have sparked worldwide interest owing to their low cost, environmental friendliness, and outstanding thermal stability.