Fabrication of triangular Cu_(3)P nanorods on Cu nanosheets as electrocatalyst for boosted electrocatalytic water splitting

作     者：DANG Rui XU Xiu-feng XIE Meng-meng 党蕊;徐秀凤;谢蒙蒙

作者机构：Northwest Institute For Nonferrous Metal ResearchXi’an 710016China The Faculty of PrintingPackaging Engineering and Digital Media TechnologyXi’an University of TechnologyXi’an 710054China 

基　　金：Project(21905232) supported by the National Natural Science Foundation of China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2022年第29卷第12期

页      码：3870-3883页

摘      要：Non-precious electro catalysts with high-efficiency, cheapness and stablility are of great significance to replace noble metal electro catalysts in the hydrogen evolution reaction(HER) and oxygen evolution reaction(OER). In this work, triangular Cu@CuO nanorods on Cu nanosheets were fabricated by a novel in-situ oxidation approach using Cu nanosheets as self-template and conductive nano-substrate in an aqueous solution of NaOH/H2O2, and then by lowtemperature phosphorization treatments. The experimental results show that the phosphating temperature has a significant effect on the morphology, composition and number of active sites of Cu@Cu_(3)P nanorods. The Cu@Cu_(3)P-280 electrode exhibits a good HER catalytic activity of achieving a current density of 10 mA/cm^(2) at 252 mV in acid electrolyte. After catalysis for 14 h, the current density can still reach 72% of the initial value. Moreover, the Cu@Cu_(3)P-280 electrode also shows an excellent OER catalytic activity in basic electrolyte, reaching a current density of 10 mA/cm^(2) at the overpotential value of 200 mV. After catalysis for 12 h, the current density remained more than 93% of the initial value. This work provides a theoretical basis for the directional design and preparation of sustainable, low-cost, bifunctional electrocatalytic materials.

主 题 词：Cu@Cu_(3)P electrocatalysis oxygen evolution reaction hydrogen evolution reaction 

学科分类：081702[081702] 081705[081705] 07[理学] 070205[070205] 08[工学] 0817[工学-轻工类] 080501[080501] 080502[080502] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s11771-023-5243-6

馆 藏 号：203117917...