影像科学与光化学2012，Vol.30Issue(4)：280-288,9.
疏水石墨烯水相分散液的制备及电化学性能
Preparation Hydrophobic Graphene Aqueous Dispersion and Electrochemical Properties
摘要
Abstract
The direct dispersion of hydrophobic graphene sheets in water without the assistant of surfactant stabilizers has recently been recognized as an important task for production of individual graphene sheets. We developed a facial method to disperse hydrophobic graphene sheets in aqueous medium through enlarging the amount of hydrazine-hydrate in the absence of surfactant or any other foreign electrostatic stabilization agents. Homogeneous aqueous graphene dispersion had produced lower zeta potential of more negative than-32. 5 mV at solution pH of 5. 89 and was stable for six months without any precipitate. The folded individual single-layer graphene sheets with 0. 38 nm layer thick and the formation of a hexagonal crystalline graphene structure were observed from AFM and TEM images, respectively. XPS analysis showed the efficient reduction of graphene oxide. As-prepared graphene-glassy carbon electrode (GE-GCE) showed a relatively sensitive electrochemical response toward the detection of AA and UA than glassy carbon electrode (GCE).关键词
石墨烯/分散液/水合肼/电化学响应Key words
graphene/dispersion/hydrazine-hydrate/electrochemical response分类
化学化工引用本文复制引用
金成勋,李丹丹,李久铭,余愿,李豫珍,只金芳..疏水石墨烯水相分散液的制备及电化学性能[J].影像科学与光化学,2012,30(4):280-288,9.基金项目
国家自然科学基金资助项目(21175144) （21175144）
