化学工程师Sum335No.8ChemicalEngineerDO1:10.16247/j.cnki.23-1171/tq.202308106工程师园地2023年第8期电解水制氢气用催化剂制备及应用性能解寅珑,云红红，白,白健美，张轩（神木职业技术学院，陕西榆林719300）摘要：针对传统贵金属催化剂和贵金属氧化剂价格昂贵、资源有限的问题，提出一种新型钨掺杂的磷化钻纳米针阵列催化剂(W-CoP/CC）,并对该催化剂的析氢反应(HER)和析氧反应(OER)性能进行测试。实验结果表明,在前驱液中投入0.1mmol钨源制备的W-CoP/CC催化剂性能最佳。该催化剂HER电催化在0.5M稀H2SO电解液和1.0MKOH电解液中过电位分别为31和77mV,塔菲尔斜率分别为57和65mV·decl。OER在1.0MKOH电解液中塔菲尔斜率为74mV·dec。用该催化剂进行电解水实验，在电流密度为10mA·cm²的条件下，催化剂电解电压约为1.59V,明显低于相关文献报道的钻基双功能催化剂所需的电解电压。在电流密度为20mA·cm²条件下连续工作20h后，电解池电压不发生变化，表现出良好的电解水性能和稳定性。关键词：电解水；电催化剂；析氢反应；析氧反应中图分类号：TQ151.1PreparationandapplicationperformanceofcatalystforhydrogenproductionfromelectrolyticwaterXIEYin-long,YUNHong-hong,BAIWei,BAIJian-mei,ZHANGXuan(ShenmuVocationalandTechnicalCollege,Yulin719300,China)Abstract:Anewtungstendopedcobaltphosphidenanoneedlearraycatalyst(W-CoP/CC)wasproposedtosolvetheproblemofexpensiveandlimitedresourcesoftraditionalnoblemetalcatalystsandnoblemetaloxidantcatalysts,anditshydrogenevolutionreaction(HER)andoxygenevolutionreaction(OER)performancesweretested.ThetestresultsshowedthattheW-CoP/CCcatalystpreparedbyaddingO.1mmoltungstensourceintotheprecursorfluidhadthebestperformance.Withthiscatalyst,theover-potentialofHERelectrocatalysisin0.5Mdilutesulfuricacidelectrolyteand1.0Mpotassiumhydroxideelectrolytewas31and77mV,respectively,andtheTafelslopewas57and65mV·dec-1.Tafelslopewas74mV·dec-1in1.0MpotassiumhydroxideelectrolyteofOER.Theelectrolysisvoltageofthecatalystwasabout1.59Vundertheconditionofcurrentdensityof10mA·cm',whichwassignificantlylowerthantheelectrolysisvoltagerequiredbythecobalt-basedbifunctionalcatalystreportedinrelevantliterature.Aftercontinuousoperationfor20hoursund...
