Electrochemical Preparation of Platinum Nanoparticles from Bis(acetylacetonato)platinum(II) in Some Aprotic Amide-type Ionic Liquids
作者:Sharmin Sultana、Naoki Tachikawa、Kazuki Yoshii、Kazunobu Toshima、Luca Magagnin、Yasushi Katayama
DOI:10.1016/j.electacta.2017.08.021
日期:2017.9
Electrode reaction of bis(acetylacetonato)platinum(II), Pt(acac)2, and preparation of platinum (Pt) nanoparticles have been studied in 1-R-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (R = butyl, hexyl and decyl, which are abbreviated as BMPTFSA, HMPTFSA and DMPTFSA, respectively) ionic liquids by means of cyclic voltammetry and rotating disk electrode (RDE) method. Pt(acac)2 was suggested
在1-R-1-甲基吡咯烷鎓双(三氟甲基磺酰基)酰胺(R =丁基,己基和癸基)中研究了双(乙酰丙酮基)铂(II),Pt(acac)2的电极反应以及铂(Pt)纳米粒子的制备,分别通过循环伏安法和旋转圆盘电极(RDE)方法获得离子液体(分别缩写为BMPTFSA,HMPTFSA和DMPTFSA)离子液体。建议在玻璃碳电极上通过两电子转移过程将Pt(acac)2还原为Pt。Pt(acac)2在50°C的扩散系数估计为1.3×10 -7 cm 2 s -1在BMPTFSA中,通过RDE测量。已经证明,可以通过在含Pt(acac)2的离子液体中于-1.8和-2.5 V进行恒电位电解,在玻碳RDE上制备Pt纳米颗粒。通过透射电子显微镜,能量色散X射线光谱和电子衍射对制备的纳米颗粒进行表征。在RDE处,旋转速率没有观察到Pt平均粒径的明显变化,表明平均粒径与旋转速度或电流密度无关。在BMPTFSA,HMPTFSA和DMPTFSA中于-1