超临界流体辅助换向脉冲复合电沉积镍-石墨烯的工艺  

Supercritical fluid-assisted pulse reverse electrodeposition of nickel-graphene composite

作　　者：李雅寒 雷卫宁[1,2] 邓瑶 王剑桥 钱海峰 牟志刚[1] LI Yahan;LEI Weining;DENG Yao;WANG Jianqiao;QIAN Haifeng;MOU Zhigang(Jiangsu University of Technology,Changzhou 213000,China;Jiangsu Key Laboratory of Advanced Material Design and Additive Manufacturing,Changzhou 213000,China;Nanbo Technology Co.,Ltd.,Changzhou 213000,China;Southeast University,Nanjing 211189,China)

机构地区：[1]江苏理工学院,江苏常州213000 [2]江苏省先进材料设计与增材制造重点实验室,江苏常州213000 [3]纳恩博科技有限公司,江苏常州213000 [4]东南大学,江苏南京211189

出　　处：《电镀与涂饰》2022年第3期160-166,共7页Electroplating & Finishing

基　　金：国家自然科学基金(51975264)。

摘　　要：利用具有高度扩散性和传质的超临界CO_(2)流体辅助双脉冲电沉积技术制备Ni–r GO(还原氧化石墨烯)复合镀层。先通过正交试验确定较优的双脉冲电参数组合,再通过单因素试验研究了正反向脉冲平均电流密度和正、反向脉冲占空比对Ni–rGO复合镀层表面形貌、显微硬度和表面粗糙度的影响。当正向脉冲电流密度和占空比分别为7 A/dm^(2)和0.35,反向脉冲电流密度和占空比分别为1.2 A/dm^(2)和0.25时,所得的Ni–r GO复合镀层表面平整、致密,显微硬度达到895 HV。A Ni-rGO(reduced graphene oxide)composite coating was prepared by pulse reverse electrodeposition under the assistance of supercritical CO_(2) fluid with high diffusion and mass transfer.The optimal pulse parameters were determined firstly by orthogonal test,and then the effects of positive and negative average current densities and duty cycles on the morphology,microhardness,and roughness of Ni-rGO composite coating surface were studied through single-factor experiments.The Ni-rGO composite coating electrodeposited at positive average current density 7 A/dm^(2),positive duty cycle 0.35,negative average current density 1.2 A/dm^(2),and negative duty cycle 0.25 was smooth and compact with a microhardness up to 895 HV.

关 键 词：镍 石墨烯 复合镀层 双脉冲电沉积 超临界二氧化碳流体 表面形貌 显微硬度 粗糙度 

分 类 号：TQ153.2[化学工程—电化学工业]