欢迎来到天天文库
浏览记录
ID:54375242
大小:733.58 KB
页数:7页
时间:2020-05-01
《MWCNT/Fe—Co/PANI复合材料的制备及其电催化性能.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、炭素2012年第2期‘32’CARB0N总第150期文章编号:1001-8948(2012)02—0032—07MWCNT/Fe—Co!PANI复合材料的制备及其电催化性能王永祯,李智辉,蔡晓岚(太原理工大学材料科学与工程学院,山西太原030024)摘要:以多壁碳纳米管(MWCNTs)为载体,通过化学悬浮聚合法制备碳纳米管/铁一钴/聚苯~(MWCNT/Fe—Co/PANI)-Y--重复合材料,并用作染料敏化太阳能电池对电极。通过场发射扫描电子显微镜(FESEM)和x一射线衍射法(xRD)等对所制MwcNT/Fe—co
2、/PANI复合材料进行表征,结果表明:MWCNT/Fe—Co/PANI复合材料呈微观多孔网状结构,Fe-Co纳米合金颗粒负载于MWCNTs上,PANI对MWCNT/Fe—co又进行了管外键联及包覆。通过三电极系统测试了MWCNT/Fe-Co/PANI复合电极在I一/I一电解质中的循环伏安曲线,结果显示:复合电极具有很好的电催化效果。MWCNTs与PANI形成的规则结构可促进对电解质的吸附,而Fe—Co纳米合金则增强了电极的催化效应。关键词:碳纳米管/铁一钴/聚苯胺复合材料;化学悬浮聚合法;微观结构;电催化性能doi:
3、10.3969/j.issnlO01-8948.2012.02-007中图分类号:TB333文献标识码:ASYNTHESISANDELECTRoCATAI.YTICACTIVITYoFMWCNT/Fe—Co/PANIWangYong—zhen,LiZhi-hui,CaiXiao-lan(CollegeofMaterialsScienceandEngineering,TaiyuanUniversityoftechnology,Taiyuan030024,China)Abstract:Anovelternarycompo
4、siteOMuhi—WailedCarbonNanotubes(MWCNTs)withironcobaltnanopartielesandp0lyaniline(PANI)wasobtainedbymeansofchemicalsuspensionpolymerizationmethod.MWCNTswereusedascarrier,whilethetargetproduct(MWCNT/Fe-Co/PANI)wasaimedtobeusedincounterelectrodeofdye—sensitisedcel
5、ls(DSSC).Fieldemissionscanningelectronmicroscopy(FESEM)andX-raydiffraction(XRD)wereemployedtoanalyzethemorphologiesandmicrostructureofproduct.TheresultsshowthatMWCNT/Fe-Co/PANIcompositepossessesspecialmicr0porousnetstructure.Ironcobaltalloynanopartielesareloade
6、donMWCNTsmatrix,polyanilinegraftsontothesurfaceofMWCNTs.ToevaluatecatalyticactivityforIs-/I一,thecyclicvoltammogramofthesamplewasinvestigatedinathree-electrodesystem.Theresuhsindicatethatthecompositematerialhasexcellentelectrochemicalcatalyticeffect.Thisispresum
7、ablyduetothenetstructurepromotingtheadsorptionofelectrolyteionaswellasironcobaltalloynanoparticlesenhancingthecatalyticeffectofcomposite.Withsuitablestructureandperformance,theMWCNT/Fe—Co/PANIcompositeisanalternativeforreplacingpreciousplatinumincounterelectrod
8、eofDSSC.Keywords:MWCNT/Fe—Co/PANI;chemicalsuspensionpolymerizationmethod;micmstructure;electricalcatalyticacitivity收稿日期:2012—02—16基金项目:国家自然科学基金(51172152),山西省自然科学基金(201000110
此文档下载收益归作者所有