Ultrastable Cu‐Based Dual‐Channel Heterowire for the Switchable Electro‐/Photocatalytic Reduction of CO<sub>2</sub>
Bo Li, Xiao Liu, Bin Lei, Haiqiang Luo, Xize Liu, Hengzhi Liu, Qinfen Gu, Jian‐Gong Ma, Peng Cheng
Abstract
Abstract Catalytic conversion of CO 2 into high value‐added chemicals using renewable energy is an attractive strategy for the management of CO 2 . However, achieving both efficiency and product selectivity remains a great challenge. Herein, a brand‐new family of 1D dual‐channel heterowires, Cu NWs@MOFs are constructed by coating metal–organic frameworks (MOFs) on Cu nanowires (Cu NWs) for electro‐/photocatalytic CO 2 reductions, where Cu NWs act as an electron channel to directionally transmit electrons, and the MOF cover acts as a molecule/photon channel to control the products and/or undertake photoelectric conversion. Through changing the type of MOF cover, the 1D heterowire is switched between electrocatalyst and photocatalyst for the reduction of CO 2 with excellent selectivity, adjustable products, and the highest stability among the Cu‐based CO 2 RR catalysts, which leads to heterometallic MOF covered 1D composite, and especially the first 1D/1D‐type Mott–Schottky heterojunction. Considering the diversity of MOF materials, the ultrastable heterowires offer a highly promising and feasible solution for CO 2 reduction.