Highly efficient electrocatalytic deuteration of acetylene to deuterated ethylene using deuterium oxide  

作　　者：Siyu Chang Jun Bu Jinjin Li Jin Lin Zhenpeng Liu Wenxiu Ma Jian Zhang 

机构地区：[1]Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology,School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi'an 710129,China [2]State Key Laboratory of Solidification Processing and School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China

出　　处：《Chinese Chemical Letters》2023年第5期302-305,共4页中国化学快报（英文版）

基　　金：supported by the Natural Science Foundation of Shaanxi Province(No.2020JQ-141);the National Natural Science Foundation of China(No.22005245);the Synergy Innovation Foundation of the University and Enterprise for Graduate Students in Northwestern Polytechnical University(No.CX2021037);the National Key Research and Development Program of China(No.SQ2021YFE010191)。

摘　　要：Deuterated ethylene is an important building block for manufacturing various deuterated polyolefins and chemicals.However,low-cost and large-scale production of deuterated ethylene still remain a great challenge.Herein,with D_(2)O as the D source,we first propose an electrocatalytic deuteration strategy for continuous production of deuterated ethylene from acetylene under ambient conditions.Specially,Ag nanoparticles exhibit a very high deuterated ethylene Faradic efficiency of up to 99.3%at-0.6 V vs.reversible hydrogen electrode.Meanwhile,Ag nanoparticles achieve a deuterated ethylene production rate of 3.72×10^(3)mmol h^(-1)g^(-1)cat and an excellent long-term stability with deuterated ethylene Faradaic efficiencies of~95%in a two-electrode flow cell,which substantially outperform state-of-the-art values for previously reported deuterated alkenes.In-situ electrochemical Infrared absorption and Raman spectroscopies reveal superior acetylene absorption and formation of deuterated ethylene on Ag nanoparticles.This efficient electrocatalytic deuteration strategy opens a new window for continuous and economic production of deuterated alkenes.

关 键 词：ELECTROCATALYSIS DEUTERATION ACETYLENE Deuterated ethylene Deuterium oxide 

分 类 号：TQ221.2[化学工程—有机化工] TQ426