单原子催化甲烷直接转化的研究进展

将甲烷直接转化(DMC)为高附加值化学品(如甲醇等化合物),是实现天然气高效利用的有效途径.因甲烷结构非常稳定,使其在温和条件下(反应温度≤150℃的非强酸介质体系)的高效活化极具挑战性.近年来,单原子催化剂(SACs)因其活性物种的高利用率和高选择性,已引起国内外研究者的广泛关注,并被尝试应用于多种反应.研究表明,S...

Direct conversion of methane on single-atom catalysts

Direct methane conversion(DMC) to high value-added chemicals(such as methanol, etc.) is one of the most important ways to efficiently utilize methane. Because methane is very stable, it is quite challenging to be activated especially under mild conditions(reaction temperature ≤150 °C without strong acid). Recently, single-atom catalysts(SACs) have attracted wide attention in many reactions for their high utilization of active species and high selectivity for target products. It has been reported that SACs exhibited unique catalytic properties in the activation of methane. In this review, we focused on the research progress of DMC reaction on SACs under mild conditions. We mainly summarized the SACs of the precious and base metal and the reaction route of methane activation in the field of thermal catalysis.Besides, the DMC reaction over the SACs in the photocatalysis process was also briefly summarized. Finally, we prospected the research on the DMC over the SACs under mild conditions in the future.