Hierarchically wood-derived integrated electrode with tunable superhydrophilic/superaerophobic surface for efficient urea electrolysis

作     者：Yu Liao Songlin Deng Yan Qing Han Xu Cuihua Tian Yiqiang Wu Yu Liao;Songlin Deng;Yan Qing;Han Xu;Cuihua Tian;Yiqiang Wu

作者机构：College of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangsha 410004HunanChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第76卷第1期

页      面：566-575,I0014页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 081702[工学-化学工艺] 1002[医学-临床医学] 0907[农学-林学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：financially supported by the National Natural Science Foundation of China(31922057) the Young Elite Scientists Sponsorship Program from National Forestry and Grassland Administration of China(2019132614) the Outstanding Innovative Youth Training Program of Changsha(KQ2106050) The Hunan Provincial Innovation Foundation for Postgraduate(CX20210847) the Scientific Innovation Fund for Graduate of Central South University of Forestry and Technology(CX202101019) 

主　　题：Integrated electrode Wood scaffold Superhydrophilic/Superaerophobic surface Urea oxidation reaction 

摘      要：Conferring surfaces with superhydrophilic/superaerophobic characteristics is desirable for synthesizing efficient gas reaction ***,complicated procedures,high costs,and poor interfaces hinder ***,an integrated electrode with tunable wettability derived from a hierarchically porous wood scaffold was well designed for urea oxidation reaction(UOR).Interestingly,the outer surface of the wood lumen was optimized to the preferred wettability via stoichiometry to promote electrolyte permeation and gas *** catalyst exhibits outstanding activity and durability for UOR in alkaline media,requiring only a potential of 1.36 V(***)to deliver 10 m A cm^(-2)and maintain its activity without significant decay for 60 *** experiments and theoretical calculations demonstrate that the nickel(oxy)hydroxide layer formed through surface reconstruction of nickel nanoparticles improves the active sites and intrinsic ***,the superwetting properties of the electrode promote mass transfer by guaranteeing substantial contact with the electrolyte and accelerating the separation of gaseous products during *** findings provide the understanding needed to manipulate the surface wettability through rational design and fabrication of efficient electrocatalysts for gas-evolving processes.