高等学校化学学报2012，Vol.33Issue(6)：1290-1294,5.DOI:10.3969/j.issn.0251-0790.2012.06.028
石墨烯的制备及石墨烯修饰电极对p-苯二酚的催化氧化
Preparation of Graphene and Electrocatalysis Oxidation of p-Hydroquinone at Graphene Modified Electrode
摘要
Abstract
The graphene (GN) was prepared by reducing graphene oxide ( GO ) using ammonia solution, and the electrocatalysis on p-hydroquinone(HQ) was also investigated at graphene-modified electrode(GN/GCE). The molecular structure, interface morphology and electrochemical properties of GN were determined by FTIR, Raman, XRD, SEM, AFM, surface area analysis(BET) and electrochemical methods. The results show that the charge transfer resistance of [ Fe(CN)6]3-/4- at GN/GCE is 75.0Ω·cm2 decreased by 9 times as compared to that of the bare glass carbon electrode(GCE) , indicating that GN has good conductivity. Meanwhile, the oxidation peak potential of HQ has been shifted negatively and its reduction peak potential has been shifted positively, and the peak separation potential(△Ep) is decreased by 165 mV with the redox peak currents increasing significantly. It is concluded that the reversibility of HQ improves greatly and GN/GCE holds remarkable electrocatalytic activity toward HQ. The test method has provided an important inspection for in situ monitoring hazardous matter in food, environment and life fields.关键词
石墨烯/p-苯二酚/电催化氧化Key words
Graphene/p-Hydroquinone/Electrocatalysis oxidation分类
化学化工引用本文复制引用
何春兰,刘成伦,谢太平,王媛,张静,张良..石墨烯的制备及石墨烯修饰电极对p-苯二酚的催化氧化[J].高等学校化学学报,2012,33(6):1290-1294,5.基金项目
重庆市科委攻关项目(批准号:CSTC2011AC4070,CSTC2009AC7194)资助. （批准号:CSTC2011AC4070,CSTC2009AC7194）
