资源描述：
《脉冲电镀制备ni_mo合金镀层及其析氢性能》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、------------------------------------------------------------------------------------------------脉冲电镀制备Ni_Mo合金镀层及其析氢性能第30卷第5期2009年5月东北大学学报(自然科学版)JournalofNortheasternUniversity(NaturalScience)Vol130,No.5May2009脉冲电镀制备Ni2Mo合金镀层及其析氢性能韩 庆1,孙克宁1,董晓辉2,陈建设1(1.东北大学材料与冶金学院,辽宁沈阳 110004;2.中国铝业股份有限公司山东分公
2、司,山东淄博 255051)摘要:研究了脉冲电镀法制备Ni2Mo合金镀层过程中电镀条件对Ni2Mo、表观形貌以及析氢性能的影响.当n(Ni)∶n(Mo)<1时,随着钼盐的加入,Mo镀层的析氢过电位升高;利用脉冲电镀制备的Ni2Mo合金镀层均匀、平整、,(Mo)%2Mo合金镀层呈非晶态结构,具有更高的催化活性(80℃,η200=62.h电解后(33%NaOH溶液中),镀层非晶态结构被破坏.随着.关 键 词:脉冲电镀中图分类号:2:A文章编号:100523026(2009)0520704204PreparationofNi2MoAlloyCoatingbyPulsePlati
3、ngandItsHERActivityHANQing,SUNKe2ning,DONGXiao2hui,CHENJian2she1121——————————————————————————————————————------------------------------------------------------------------------------------------------(1.SchoolofMaterials&Metallurgy,NortheasternUniversity,Shenyang110004,China;2.ShandongP
4、lant,AluminumCorp.ofChinaLtd.,Zibo255051,China.Correspondent:CHENJian2she,E2mail:chenjs@smm.neu.edu.cn)Abstract:TheeffectsofdifferentelectrodepositionconditionsinthepulseplatingprocesstoprepareNi2Mocoatingonitscomposition,apparentmorphologyandHER(hydrogenevolutionreaction)activitywereinvesti
5、gated.Ifthequantitativeratioofnickeltomolybdenumislowerthan1(mol%),theMocontentinthecoatingdecreasesgraduallywiththemolybdenumsaltaddingtothecoating,whilethecorrespondingHERoverpotentialincreases.TheNi2Mocoatingthuspreparedpresentsamorphousstructure(w(Mo)=30%)incombinationwithhomogeneous,smo
6、othandcharacteristics,especiallyitprovidesahighercatalyticactivity(80℃,η200=62mV)withhighcorrosionresistance.Afterthegalvanostaticelectrolysisin33%NaOHsolutionfor100hr,theamorphousstructureisdestroyedduetoModissolution,thenthebubblingcomestopasswithincreasingporosity.Keywords:pulseplating;Ni
7、2Moalloy;HERactivity;Mocontent;amorphousstate近年来,伴随着氯碱工业及电解水制氢等行业的发展,活性析氢阴极材料的制备领域取得了——————————————————————————————————————------------------------------------------------------------------------------------------------一定的进展.研究表明[1-11],在众多的析氢材料中,Ni
