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1、多壁碳纳米管minus;酞菁铜复合物的合成表征及光电性能第26卷第8期无机材料学报Vol.26No.82011年8月JournalofInorganicMaterialsAug.,2011文章编号:1000-324X201108-0785-07DOI:10.3724/SP.J.1077.2011.00785多壁碳纳米管?酞菁铜复合物的合成表征及光电性能12吴振奕,杨绳岩1.厦门大学化学系,厦门361005;2.巢湖学院化学与材料科学系,巢湖238000摘要:采用氯磺酸作为磺化试剂,在多壁碳纳米管上接枝氯磺酰基,之后通过乙二胺的胺解反应,制备出胺基修饰的多壁碳纳米管MWCN
2、T-NH,并进一步与氯磺酰基酞菁铜反应制备出MWCNT-Pc复合物.产物采用红外光谱,2紫外可见,拉曼光谱,X射线光电子能谱,循环伏安,热重分析等进行了表征.结果表明,MWCNT-NH上磺酰胺基2接枝在MWCNT表面,而MWCNT-Pc上的酞菁基团是通过MWCNT-NH上的酰胺基团与Pc形成复合物,碳纳米2管上约38个碳原子结合一个磺酸基酞菁分子;该MWCNT-Pc复合物的热稳定性较MWCNT-NH低;利用喷涂法2构筑了ITO/MWCNT-Pc光电极,光电性能的研究结果表明在AM1.5光照条件下,光电压及光电流分别为0.434V2和0.158mA/cm;在320nm处的I
3、PCE达19.8%,具有较优良的光电转化性能.根据测得的MWCNT-Pc的能带结构,推知MWCNT-Pc的光诱导电子转移过程是Pc端基发生光激发电子跃迁,此后电子转移到MWCNTs上并进一步传递到ITO,完成电荷分离关键词:多壁碳纳米管;酞菁铜;光电性能中图分类号:O614文献标识码:ASynthesis,CharacterizationandPhotoelectricPropertiesoftheCopperPhthalocyanine-modiedMulti-walledCarbonNanotubes12WUZhen-Yi,YANGSheng-Yan1.College
4、ofChemistryandChemicalEngineering,XiamenUniversity,Xiamen361005,China;2.DepartmentofChemistryandMaterialScience,ChaohuCollege,Chaohu238000,ChinaAbstract:Multi-walledcarbonnanotubesMWCNTsweregraftedwithsulfonylchloridegroupsusingchlorosulfonicacidasasulfonationreagent,andthentheamino-modif
5、iedmulti-walledcarbonnanotubesofMWCNT-NHwaspreparedviatheaminolysisreaction.TheMWCNT-NHwasfurtherreactedwithcopper22phthalocyaninesulfonylchloridetopreparedthecomplexofMWCNT-Pc.Theproductswerefullycharacterizedbyvariousstandardanalyticaltechniques,includingscanningelectronmicroscope,trans
6、missionelectronmicroscope,infraredspectroscope,UV-Visabsorptionspectroscope,Ramanspectroscope,X-rayphotoelectronspectroscope,thermogravimetricanalysis,andcyclicvoltammetry.TheresultsindicatedthatthecomplexofMWCNT-PcwasfabricatedthroughcovalentassemblyofMWCNT-NHwithcopperphthalocyanine,wit
7、hacopperphthalocyanine2moleculeforevery38MWCNTcarbons.ThethermalstabilityofthecomplexofMWCNT-PcwaslowerthanthatofMWCNT-NH.ThephotoelectrodeofITO/MWCNT-Pcfabricatedbythemethodofthesprayshowedabetter22photoelectricperformancewiththephotovoltageandthephotocurrentwere0.
