Characterization of W-Cu composite powder for vehicle electrode prepared by hydrothermal co-reduction method
WANG Wei1，WANG Jun1，ZHANG Xiao-xu2
（1. School of Automotive Engineering， Huanghe Jiaotong Uuniversity， Jiaozuo 454950， China 2. College of Material Engineering， He’nan University of Science and Technology， Luoyang 471000， China）
Abstract：In order to improve the electrical conductivity of the vehicle electrode， the W-Cu composite powder was prepared by hydrothermal reduction method. The morphology and phase composition of the composite powder were characterized by SEM and XRD. The characteristics of the composite powder after hydrothermal reaction， calcination and reduction were analyzed. Results show that the precipitate shows a particle agglomeration state with different sizes after hydrothermal reduction reaction. The powders are spherical and the particle size is about 2.5 μm， mainly composed of CuWO4H2O and Cu2WO4（OH）2， which indicates that the products produced in the hydrothermal reaction stage have obvious crystalline structure. There is a large amount of[CuWO4-x]in the calcined powder， which is composed of[CuWO4-x，]CuO and WO3. The reduced powder has agglomeration phenomenon and small initial particles. The reduced Cu particles play a catalytic role to the reduction of WO3， finally the W-Cu composite powder with dispersed distribution and fine particles are formed.
收稿日期: 2016-09-18
出版日期: 2018-04-18
通讯作者:
王巍
E-mail: weixiuuye@126.com
引用本文:
王 巍，王 军，张晓旭. 水热还原法制备车电极用W-Cu复合粉末的特性表征[J]. , 2018, 28(02): 8-11.
WANG Wei，WANG Jun，ZHANG Xiao-xu. Characterization of W-Cu composite powder for vehicle electrode prepared by hydrothermal co-reduction method. , 2018, 28(02): 8-11.
2018, Vol. 28 
