文献类型：期刊文献

英文题名：Interlayer Effect in NiCo Layered Double Hydroxide for Promoted Electrocatalytic Urea Oxidation

作者：Zeng, Min[1];Wu, Jinghua[2];Li, Zhiyun[3];Wu, Haihong[1];Wang, Jinling[4];Wang, Hualin[4];He, Lin[1];Yang, Xuejing[4]

机构：[1]Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Suzhou Res Inst, LICP, Lanzhou 730000, Gansu, Peoples R China;[2]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China;[3]Chinese Acad Sci, Vacuum Interconnected Nanotech Workstn, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China;[4]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China

年份：2019

卷号：7

期号：5

起止页码：4777

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20190906549725);WOS:【SCI-EXPANDED(收录号:WOS:000460600500023)】；

基金：We acknowledge support from National Key Research and Development Program of China (2016YFC0204500), the National Natural Science Foundation of China (21633013, 21703267, 21507030, 91834301), the Foundation research project of Jiangsu Province (BK20171242, BK20170423), and the National Program for Thousand Young Talents of China.

语种：英文

外文关键词：NiCo layered double hydroxide (NiCo LDH); Urea electrooxidation; Interlayer effect

摘要：Urea electrolysis is a promising route to utilize urea-rich wastewater as an energy source to produce hydrogen on the cathode or generate electricity through a direct urea fuel cell, which offers great potential for simultaneous water remediation and energy recovery. Here, we report a scalable synthetic strategy to prepare NiCo layer double hydroxide (NiCo LDH) as an efficient catalyst for urea electrooxidation. NiCo LDH with NO3- intercalant exhibited the best electrocatalytic performance and selectivity toward urea oxidation with a low onset potential, high faradaic efficiency, and high durability. The interlayer spacing in the LDH structure was found to play a pivotal role in the urea oxidation electrocatalysis with higher activity/selectivity under larger spacings. Further analysis of the urea oxidation product could potentially enable selective urine treatment into environmentalally friendly products.