Multiwalled carbon nanotubes covered with cobalt（Ⅱ） phthalocyanine by in-situ synthesis and its electrochemical sensing performance towards DA and UA
作者单位：Department of ChemistryCapital Normal University
会议名称：《2014中国功能材料科技与产业高层论坛》
会议日期：2014年
学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
关 键 词：Cobalt phthalocyanine Multiwalled carbon nanotubes Platinum particles Electrochemistry Sensors
摘 要：Multiwalled carbon nanotubes（MWCNTs）as an excellent supporter covered with a thick layer of cobalt phthalocyanine（CoPc）were prepared by insitu *** particleswere adopted to enhance the conductivity of *** final nanocompositePt-CoPc-MWCNTswascharacterized by X-ray diffraction（XRD）,X-ray photoelectron spectroscopy（XPS）and transmission electron microscopy（TEM）.Strong aromaticπ-πstacking between MWCNTs and CoPc made CoPc in-situ forming on *** homogeneous thickness of CoPc covered on the MWCNTs and Pt particles equally distributed,the nanocomposite was used as *** electrochemical properties of the composite got researchedby casting the dispersion of Pt-CoPc-MWCNTs on the glassy carbon *** with other modified electrodes,Pt-CoPc-MWCNTs/GC electrodeexhibited excellent electrochemical activity towards dopamine（DA）and uric acid（UA）.Linear responses for DA and UA were obtained in the ranges of 5 to 170μM and 5 to 100μM,and limitsof detection were 2.6 and 1.4μM（S/N=3）,*** detection of DA and UA in the presence of ascorbic acid（AA）also displayed selective property,with no interference to each other.