Nitrogen-doped Zn–Ni oxide for electrochemical reduction of carbon dioxide in sea water  

作　　者：Shuai Zhang Xin-Tong Gao Peng-Fei Hou Tie-Rui Zhang Peng Kang 

机构地区：[1]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]School of Chemistry,Beijing University of Chemical Technology,Beijing 100029,China [3]School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China

出　　处：《Rare Metals》2021年第11期3117-3124,共8页稀有金属（英文版）

基　　金：financially supported by the National Key R&D Program of China (No.2016YFB0600901)。

摘　　要：Nitrogen-doped Zn-Ni oxide nanoparticles prepared by ammonia treatment are efficient electrocatalysts for CO_(2) reduction to CO.The single-phase nanostructures of N-Zn-Ni oxide nanoparticles exhibited high electrocatalytic CO_(2) reduction activity with CO Faradaic efficiency of 91.5% and partial current density of 3.2 mA·cm^(-2) at-0.95 V(vs.reversible hydrogen electrode’RHE) in NaCl aqueous solution.Furthermore’ N-Zn-Ni oxides catalyst achieved CO Faradaic efficiency over 89%at—0.8 V(vs.RHE) in natural seawater’ much better than the CO_(2) reduction activity of benchmark Ag/C catalysts in seawater’ and demonstrated strong tolerance to several metal ion impurities with retained CO selectivity.The notable reactivity toward CO_(2) reduction and contamination-tolerance is attributed to peculiar synergistic effect from binary Zn-Ni oxide and nitrogen doping.

关 键 词：Electrochemical CO_(2)reduction Nitrogendoped Zn–Ni oxide Seawater Heavy metal ions-tolerance electrocatalyst CO production 

分 类 号：TQ426[化学工程] X701[环境科学与工程—环境工程]