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ε̼Ӧȼϵش߻оչ

                 ε̼Ӧȼϵش߻оչ
                                        ޷
              (ѧѧ뻯ѧԺ㶫510640)
    ժҪ:ȼϵش߻оѳΪǰĹȵо⡣̼ϵıΡʲӡ湲۽֦Ρлķǹ۰ԼӦȼϵش߻оչԴڵ˷
    ؼ:ȼϵ;߻;̼;ܻ;
    ͼ:O69ױʶ:A±:02534320(2012)07002905
    ȼϵһֱӽѧתΪܵĵ绯ѧװãתʸߡԻӰСȼ϶޻е˶Ҫŵ1ݡ
    Ŀǰ㷺õ̼ز߻˴ŲԴѷ۸񰺹֮⣬ڻ˥׻ֿž۳⣬طȼϵҵĽ̡˽PtPtɢȼʡߴ߻ĿͿžǷdzҪо25ݡ
    ػӰӵĵ߻ܣУ弰γɸߴ߻ԵĴ߻زٵ֮һĵȼϵش߻Ӧ߱õĵӴϴıȱĿ׽ṹԼĿʴԵص6ݡ͵̼Ϊȼϵش߻ӦԽԽ࣬ܶоǶ̼Ͻиԣ幦ܻȼϵش߻缫ѳΪһµоȵ㡣ͨȼϵش߻ɵĿ:ͨ߹ķɢȣž⣬Ӷ߹;븺ؽ֮ĴٽЧӦӴ߻ԣӴ߻ԡȶԵ;۲⹦ܵʣӴ߻ܣʪжʴȡ
    ̼ϽиҪΪͻѧҪͨͿͰö̼Ͻб;ѧʹ̼Լ֮лѧӦͨı̼ıṹ״̬ﵽԵĿġĽֱܽԲ̼ͬϲ֮Ӧȼϵش߻оչ
    1
    ӦԸı̼ϵıṹòһ棬ӦĹţЩܹΪǰṩλʹɢȵطֲ档һ棬ĹҲ໥໥ʹϵøΪι̣Ӷ˴߻ȶԣ7ݡĿǰIJͬɷΪҺ̬̬Һ̬һǿܼãﵽĿģ÷豸򵥣׿ƣӦº͡õظءءҺŨᡢ˫ˮȡ̬CO2O2O3ȣڸ½УҶԷӦ¶ȡӦʱԼٵȲȷؿơ
    Chenȣ8ݽ̼˫ˮϻƱõ̼XCOΪ帺PtƱõPt/XCO߻TEMʾPt̼ϾнС绯ѧԱ̼ƱĴ߻ʾ˽ϸߵȶԡֱַHNO3H2O2̼ڣ9ݣȻΪ帺PtֱƱõ߻Pt/VulcanNPt/VulcanOTEMPtH2O2̼ϾнϸߵķɢȣHNO3̼ϷɢΪΣδ̼ϵķɢͣͼ(ͼ1)̼󣬱˷ḻĹţ1 046 cm1CO񶯷ǿЩ˽Ӻ໥ãH2O2̿1 722 cm1ֽǿ壬C O񶯷壬HNO3ͬʱԻźǿԻţH2O2ҪԻţΪԻܸһǿӺ໥ãӶߴ߻ȶԡ
             
    2ʲ
    һЩʿԸı̼ı״̬ߴ߻ܣͬʱܹһЩܣ翹жʪȡĿǰ๤ΧʣȻо߻һЩչݲʵ̬ЩյʲӺͻӷֿһܡ
    2.1ʲ
    Rezgarȣ10óķʷɢ̼׹ܱ棬Ʊ˺ͬIJ̼׹ܡȻýԭƱõPt/SCNT߻XRDTEMͼӣPtӵ𽥼СSCNTΪ0.3ʱﵽС֮PtӵֳơԸ߻绯ѧѭҲʾSCNTΪ0.3Pt߻ߵĵ绯ѧԱȱ(88.4m2/g)õļ״߻ԡԼ״߻ܶȿɴ862.8 A/gֱδCNTPt/C߻ҵPt/C߻6.52.3
    Zhangȣ11״νP̼帺PdƱõPdP/C߻ӦֱӼȼϵСͨPd/C߻PdP/C߻Լ߻25%ʾߵȶԡ
    2.2
    Cuiȣ12ݽXC72̼ϣʹḺ̼۱棬ڵбƱõWO3/CϲϣͬʱҲԹǰ壬XC72̼ڻƱõWO3/Cϲϣ2ָϲϷֱ𱻱ΪWO3/C1WO3/C2ͼ2пɿWO3/C1еWO3ӱWO3/C2ȵطֲ̼۱棬иСǷֱ帺PtƱõ߻PtWO3/C1PtWO3/C2ڶԼ״У߻PtWO3/C1PtWO3/C2ҵPt/C߻ֳߵĴ߻Լȶԡͬǣ13WO3/C帺PdƱõPdWO3/C߻֤PdWO3/CϲҲЧߴ߻ԼܣѭʾPdWO3/C߻Լ߻Pd/C߻1.9ȶԽPd/C߻Ҳ˺ܴߡزԱPdWO3/C߻ܶȿɴ7.6mW/cm2Pd/C߻45%
             
    Suȣ14(TEOS)̼ۻϣڵи·Ӧô˷ƱõSiֱΪ0.3%3.0%SiO2/CȻSiO2/CΪ帺PtƱõPt/SiO2/C߻ô߻Ϊ߻еزԣнмʪʱ˵缫ʾҵ߻߻Ĥ缫൱Ĺܶȣ˵߻йĴڲӰH2Ӧ̡ûнмʪʱҵ߻3 hھ½85%Pt/SiO2/C߻3 hֻ½10%ڲʪ¹20 h书ܴܶﵽ700 mA/cm2֤ʵ˴߻ıˮܡʹʪȼϵؾпԡ
    3湲۽֦
    湲۽֦ͨһĻѧֶ̼ϱԹۼӵĻѧš÷Ļžнȶڸ²ŵ㣬ͬʱִ࣬ʹ̼ϱṹıȱ㡣оַ֣ȷߴ߻ĻԼܡ
    Zhaoȣ15ݽٷĩ̼׹ܻϣ΢лܽƱõWCĩWCĩ̼׹ܻϣ΢ƱõWCε̼׹WC/MWCNTΪ帺PtƱõ߻PtWC/MWCNTPtӺWC֮Эͬã߻ܵõȵ(Լ״߻ĵܶȿɴҵPt/C߻5)COܳԱ߻PtWC/MWCNTҵPt/C߻ȽϾнϵ͵Ĺλ˵WCε̼׹PtWC/MWCNT߻COжһá
    Yangȣ16ö԰Զ̼׹ܽйܻõ˱кŵĶ̼׹ܡͼ(ͼ3)ʾCNTϱ壬ˮʵ˵̼׹ܾκ󣬱˱ʹˮԴߣܹˮгڴڷɢ״̬ԱκĶ̼׹Ϊ壬Һ໯ѧԭϳPd/MWCNTs߻ڶ̼׹ܱϵõɢȵPdӣ绯ѧԱữ̼׹/PdӴ߻ԼнϺõĵ߻áΪΪεĶ̼׹ṩıӽϣӶٽм
             
    4лķǹ۰
    ʯī̬ڵ̼̼׹ܡ̼άʯīϩȣ̼ԭͨsp2ӻγɸ߶򻯵ĦеӣЩ򻯵ĦеӿͬЦеӵĻͨУм໥öһͨ໥ܰһЩӷǹ۵ذ̼ı棬ַĹţṹγƻ
    4.1лСӵķǹ۹ܻ
    Girishkumarȣ17ݽԼ廯(TOAB)뵥̼׹(SWCNT)ֻϣʹTOABԻSWCNTs໥ãʹTOABSWCNTs棬ӶɹƵTOABSWCNTsõPtTOABSWCNTsı棬õӦĴ߻Pt/TOABSWCNTs绯ѧԽTOAB̼׹Pt/TOABSWCNTs߻Լ״нϸߵĵ߻ԡ
    Wangȣ18ݽMWCNTs1(1AP)ϣŻϵĴмMWCNTsĴм֮໥ý1ŷǹڶ̼׹ܵı棬Ƶ1APMWCNTs壬չ(ͼ4)1ųɹطǹ۰̼׹ܵı棬Ȼ΢׿1APMWCNTsϣƱõ߻PtRu/1APMWCNTsֶԶ̼׹ܽбεķڳ½УõǿʴԵҩƷ绯ѧʾƱĴ߻Լ״ĵ߻Աᴦ̼׹Ĵ߻߳60%̿Ĵ߻߳200%PtRu/1APMWCNTs߻ʾ˽ϸߵĵȶԡѭ600ȦԺܽ½18%ᴦ̼׹Ĵ߻ڲ600ȦԺ½41%
              
    4.2Ӿۺǹ۹ܻ
    ۺиߴԡȶԡ۸ŵ㣬Ҿۺ෱࣬Ƶã㷺̼塣
    Yuȣ19ݶʯī̼ά(GNFH)бΣϩ̼ϻϣڸʹ䷢ۺϷӦõϩͪεʯī̼ά(PVPGNFH)һЩòϩͪβûƻ̼ϵıṹ˴ĹţPVPGNFHPtƱõPt/PVPGNFH߻绯ѧԱPVPGNFHPt/PVPGNFH߻Լ״Ĵ߻ԱδGNFHPt/GNFH߻463%
    ƱʱҺܼȶ2021ݡWuȣ22ݲ΢ԭƵPt/PILMWCNTsPtRu/PILMWCNTs߻TEMʾ߻ƽֻ1.4nmͨԼ״ѭʱԱںѹ£PtRu/PILMWCNTs߻Լ״߻ֵܱPtRu/MWCNTs߻5Pt/PILMWCNTs߻ܱPt/MWCNTs߻3ӦĴ߻ᴦMWCNTsصPtPtRuӴ߻иߵĵ߻Ժȶԡ
    ص(ߴԡȶԼƵԵ)ҵŹ㷺;Sel-varajȣ23ݽ̼׹(MWCNT)ϣ(NH4)2S2 O8Ϊڵ(05)Ʊõ˾(PPy)ܻMWC-NTsͼ(ͼ5)ʾ˾ܻMWCNTsоĺ壬֤ɹظMWCNTs档HCHOΪԭƱõPtRu/PPyMWCNTs߻
    ͨԼ״ѭʾô߻ʾ˶Լ״ǿĵ߻Ժȶ(ֵδCNTĴ߻߳63%)Zhaoȣ24ݽ̼׹(MWCNT)Ũ(NH4)2S2 O8ϣڵмҴҺӦ0.5 hҲõPPyMWCNTs壬ƱõPtCo/PPyMWCNTs߻ͬʾ˶Լ״õĵ߻(ֵδCNTĴ߻߳98%)
             
    Wangȣ25ݽ̼׹ۼΣ6po-ly(diallyldimethylammonium chloride)(PDDA)ݻϣƱõPDDAε̼׹PDDAMWC-NTsκ̼׹ܸزӵõ߻Pt/PDDAMWCNTspoly(diallyldim-ethylammonium chloride)(PDDA)ε̼׹Ϊ߻߲׿ķɢԣڴͳPDDA̼׹ûƻ̼ܱĽṹ̼׹ܹŵĸܶȡ߻绯ѧԽPDDA̼׹Ĵ߻Լ״߻Խ̼׹Ĵ߻70%
    5
    ڴ߻ȼϵռоصĵλĿǰԽԽоΧȼϵش߻չ̼Ĺܻƴ߻Ļֵķɢߴ߻ĻԣԼ߻ijЩܣѱ㷺ʶһּЧߴ߻ܵ;ĿǰıηԴһЩȱȣԹ۷̼ȻȶĻޣǹ۷̼Ȼţȶ»ܼй䡣ˣѰܽŴȶ̼ϵķȻDZҪо⡣⣬໥ȱоûε̽໥õԭ
    ֮úķܻ̼壬ߴ߻ԡ߹ʡ߻⹦ܡƻֵijȾзdzҪ壬оͻƽٽȼϵش߻Լȼϵؼķչҵ̡
    οף


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