摘要
以非离子型三嵌段共聚物EO106PO70EO106(F127)/正丁醇/氯铂酸水溶液构建的溶致液晶层状相为模板,电化学沉积制备铂纳米材料.透射电镜和扫描电镜显示,产物为具有高长径比的纳米线形成的束状结构,能量弥散谱与电极电势分析证实产物为铂单质,而循环伏安测量表明产物的比表面积约为53m2·g-1.对影响产物形貌的因素和产物生成的可能机理进行了分析.
Nanostructured platinum is prepared by electrochemical deposition from the lamellar lyotropic liquid crystalline phase, composed of the nonionic triblock copolymer EO106PO70EO106（F127）, n-butanol and H2PtCl6 aqueous solution. Observations from the transmission or scanning electron microscopes illustrate that the deposit is of bunchy nanostructure, clustered by nanowires with high aspect ratio. Analysis on energy dispersion spectrum and the electrode potentials suggests the platinum metal nature of the deposit. The results of cyclic voltammetry show a high specific surface area （about 53m^2·g^-1） for the deposit. The factors influencing the deposit morphology and the possible deposition mechanism are discussed.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2006年第12期1506-1510,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金(20373035
20573066)
山东省自然科学基金(Y2005B18)资助项目
关键词
嵌段共聚物
溶致液晶
层状相
纳米材料
Block copolymer, Lyotropic liquid crystal, Lamellar phase, Nanomaterial
