Porous tin-based film deposited on copper foil for electrochemical reduction of carbon dioxide to formate

被引：54
作者：
Lu, Weixin [1 ]
Zhou, Jing [1 ]
Kong, Fenying [1 ]
Fang, Hailin [1 ]
Wang, Wei [1 ]
机构：
[1] Yancheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224051, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Carbon dioxide; Electrochemical reduction; Electrodeposition; Tin-based film; Formate; ELECTROCATALYTIC REDUCTION; CO2; REDUCTION; ELECTRODES; EFFICIENCY; ANODE;
D O I：
10.1016/j.ijhydene.2015.11.100
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electrochemical reduction of carbon dioxide (CO2) has been studied using a Sn/Cu electrode as the cathode in aqueous KHCO3 solution. The Sn/Cu electrode has been prepared by electrodeposition a Sn-based film on a Cu foil from a sodium citrate aqueous electrolyte containing SnCl2. Here, we have explored the effects of the deposition time, the thickness of the Sn-based film and the electrolysis potential on the faradaic efficiency for producing formate. The results demonstrate that maximum faradaic efficiency of 91.5% is obtained at -1.8 V vs. Ag/AgCl on the Sn/Cu electrode possessing a similar to 325 nm thick Sn-based film which is prepared by electrodeposition for 15 min. The Sn/Cu electrode has big current density and excellent catalytic activity for CO2 reduction compared with the Sn electrode. Copyright (c) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1585 / 1591
页数：7
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