|
|
- 2018
表面缺陷促进SnO 微板在中性电解质中的电催化性能DOI: 10.14081/j.cnki.hgdxb.2018.06.002 Keywords: SnO, 析氢, 二维材料1. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China, 2. Hebei Key Laboratory of Robot Sensing and Human-robot Interaction, Hebei University of Technology, Tianjin 300401, China Abstract: 使用超声波和有机物辅助水热法合成SnO微板.研究表明，可以通过改变反应溶液的pH值，获得具有 不同表面形态的样品.使用超声波和水热法联合处理可以进一步调节样品的电催化析氢（HER）活性.通过改变 生长环境的pH值，SnO的析氢起始电位和Tafel斜率可以分别从435mV和156mV/dec降至298mV和100mV/dec. 超声处理后，SnO的起始电位和Tafel斜率分别从350mV和120mV/dec降至292mV和115mV/dec.其原因与 SnO微板表面形态有关，表明表面形态对电催化性能有显着影响.Inthiswork,SnOmicroplatesweresynthesizedusingultrasoundandorganic-assistedhydrothermalmeth? ods.BychangingthepHvalueofthereactionsolution,sampleswithdifferentsurfacemorphologiesareobtained.Ultra? sonicandhydrothermaltreatmentmethodsarefurtherusedtotunetheirelectrocatalytichydrogenevolutionactivity.By changingthepHvalueofthegrowthenvironment,theonsetpotentialandTafel slope of SnO can be dropped from 435mVand156mV/decto298mVand100mV/dec,respectively.Aftersonicationtreatment,theonsetpotentialand TafelslopeofSnOweredroppedfrom350mVand120mV/decto292mVand115mV/dec,respectively.Thereasonis correlatedtothesurfacemorphologieswhichshowsignificanteffectontheelectrocatalyticperformance.
|
