Electrochemical CO₂ reduction holds great promise for the conversion of CO₂ to value-added chemical products. Nevertheless, it is still a tremendous challenge to develop low cost and high selectivity non-precious metal electrocatalysts. Herein, we develop a facile route to fabricate nickel and nitrogen co-doped pitch-based ordered mesoporous carbon, which exhibits a high Faradaic efficiency of CO over 90 % in a wide potential range from -0.75 to -1.20 V versus reversible hydrogen electrode. Such excellent catalytic activity is mainly attributed to the engineered Ni-N active sites and unique ordered mesoporous structure, which brings synergetic effects of enhance CO₂ activation, fast mass transfer and highly exposed active sites.

电化学还原CO ₂有望将CO ₂转化为增值化学产品。然而，开发低成本和高选择性的非贵金属电催化剂仍然是巨大的挑战。在本文中，我们开发了一种容易的方法来制造镍和氮共掺杂的沥青基有序介孔碳，与可逆氢电极相比，在-0.75至-1.20 V的宽电位范围内，CO表现出90％以上的高法拉第效率。如此优异的催化活性主要归因于工程化的Ni-N活性位点和独特的有序介孔结构，从而带来了增强CO ₂活化，快速传质和高度暴露的活性位点的协同效应。