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1、第26卷第2期催化学报2005年2月Vol.26No.2ChineseJournalofCatalysisFebruary2005ArticleID:0253-9837(2005)02-0091-02Communication:91~92PreparationofSupportedNiBAmorphousAlloyCatalystsbyPowderElectrolessPlatingWANGLaijun1,2,ZHANGMinghui1,LIWei1,TAOKeyi1(1CollegeofChemistry,NankaiUniversity,Tianjin300071,Chi
2、na;2InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing102201,China)Keywords:amorphousalloy,powderelectrolessplatingmethod,nickel,boron,sulfolene,hydrogenationCLCnumber:O643Documentcode:AAmorphousalloysarepotentialheterogeneousastainlesssteelautoclavecontaining110gcatalyst,[
3、1~5]catalystsinavarietyofindustrialprocesses.30gsulfoleneand60mldistilledwaterat310MPaofGenerally,amorphousalloyswithahighsurfaceareaH2pressureand328Kwithvigorousstirring.Thecanbepreparedbythechemicalreductionmethodbutreactionlasted210h.Theproductswereanalyzedus-theas-preparedalloysarecostl
4、yandtheirthermalsta-ingagaschromatographequippedwithFID.[1]bilityispoor.Inaddition,aggregationoftheseu-lTheXRDpatternoftheNiBalloyistypicalofan[5]trafineamorphousalloyparticlesisveryserious,amorphoussubstancewiththecompleteabsenceofwhichgreatlyaffectstheircatalyticactivity.Inorderanysharpcr
5、ystallinepeaks.Thebroadpeakaroundtoovercomethesedrawbacks,weusedtwokindsof[4,5]2H=45bisduetotheamorphousNiBalloy.InelectrolessplatingbathstopreparetwoMgO-support-thecasesofNiB/MgO-1andNiB/MgO-2,nobroadedamorphousNiBalloycatalysts,NiB/MgO-1andpeakwasfoundat2H=45bbecauseofthehighdisper-NiB/Mg
6、O-2,bythepowderelectrolessplatingsionofNiBonthesupportandthelowNiloading.method.Forcomparison,anunsupportedNiBalloyHowever,acrystallinediffractionpeakcorrespondingwaspreparedbythetraditionalchemicalreductiontometallicNiappearedwhenNiB/MgOwastreatedmethod.ThesecatalystswerecharacterizedbyXRD
7、,at773KunderAr,indicatingthatNiandBontheICPandTEM.Theircatalyticactivitywasmeasuredsupportexistedintheamorphousstate.Theseresultsusingtheliquidphasehydrogenationofsulfoleneun-[6]areconsistentwithourpreviousstudies.dermoderatepressure.TheunsupportedNiBpar
