%0 Journal Article
%T Comparingcharacterizationoffunctionalizedmulti-walledcarbonnanotubesbypotentiometricprotontitration,NEXAFS,andXPS
%A Zhiteng Zhang
%A Lisa Pfefferle
%A Gary L. Haller
%J ´ß»¯Ñ§±¨
%P 856-863
%D 2014
%R 10.1016/S1872-2067(14)60123-6
%X £¿Sincethediscoveryofcarbonnanotubes(CNT),thismaterialhasbeenrecognizedasanattractivecatalystsupport.CNTmustbefunctionalizedbeforeuseasacatalystsupportandtypicallythisinvolvesoxidation.However,thefunctionalgroupdistributionontheCNTisverycomplexmixtureofgroupsandvarieswithoxidationagentused.Hereasimpleacid-basetitrationisintroducedtocharacterizetheoxygenfunctionalizedCNT.Bycomparingcharacterizationwithnear-edgeX-rayabsorptionfinestructure(NEXAFS)andX-rayphotoelectronspectroscopy(XPS)forbothattheCandOK-edges,itcanbedemonstratedthatpotentiometricprotontitrationcanbeafastandquantitativeanalysisforBr£¿nstedacidfunctionalgroupsonCNT.
%K Carbonnanotubes
%K Functionalization
%K Potentiometrictitration
%K X-rayphotoelectronspectroscopy
%K Near-edgeX-rayabsorptionfinestructure
%U http://www.chxb.cn/CN/abstract/abstract21358.shtml