晶面调控实现合成气低温制备烯烃过程

Syngas Conversion to Lower Olefins via Facet Regulating

低碳烯烃（包括乙烯、丙烯、丁烯）是合成塑料、橡胶、纤维等高分子化合物的重要平台分子,也是全球产量最大的化学品。低碳烯烃主要是经由石油化工途径而获得。然而随着石油资源日趋枯竭,开发低碳烯烃制备新途径势在必行。我国储量巨大的煤以及天然气、生物质等含碳资源均可以通过合成气（CO和H_2混合气）途径转化为低碳烯烃。

Lower olefins are essential feedstock in polymeric industry, and therefore a direct syngas conversion route is challenging, yet highly demanding. Sun＇s group achieve 61% selectivity toward lower olefins over CoMn catalyst at mild conditions. It is found that the formation of Co2C nanoprism with unique facets contributed to the astonishing performance.