太原理工大学学报2017，Vol.48Issue(4)：509-517,9.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.04.001
退火对泡沫镍沉积金属催化剂的析氢性能影响
Influence of Thermal Annealing on Electro-Depositional Ni Foam Catalyst for Hydrogen Evolution Performance
摘要
Abstract
In this work,the influence of thermal annealing on Ni foam decorated with monobinary metal layer for hydrogen evolution reaction (HER) in alkaline media was studied.The composition,structure,morphology and electrochemical hydrogen evolution performance of the electrodeposited composite catalysts were investigated using X-ray diffractometer (XRD),scanning electron microscope (SEM),and electrochemical workstation.It can be found that,the samples annealed at 300 ℃ all exhibit better electro-catalytic HER performance than those unannealed.And the as-revealed catalytic activity toward HER followed the sequence:NF@Cu0.01@Ni0.01-300,NF@Cu0.01@Co0.03-300,NF@Ni0.01-300,NF@Co0.03-300.The results show that the NF@Cu0.01@Ni0.01-300 electrode exhibited the highest catalytic activity toward HER with the current density 3.97 times that of the bare Ni foam.Moreover,both excellent electrochemical and physical stabilities were also acquired on the NF@Cu0.01@Ni0.01-300 catalyst.It further confirmed that the electro-depositional surface metal layer modification and annealing treatment have a great beneficial influence on the performance of Ni-foam based composite catalyst for HER.关键词
泡沫镍/表面修饰/退火/电催化/析氢Key words
nickel foam/surface modification/annealing/electro-catalysis/hydrogen evolution reaction分类
矿业与冶金引用本文复制引用
王美,马冠水,马自在,王孝广..退火对泡沫镍沉积金属催化剂的析氢性能影响[J].太原理工大学学报,2017,48(4):509-517,9.基金项目
校优秀青年基金资助项目(1205-04020203) （1205-04020203）
