| 一种纳米铂水溶胶的制备及其在电化学上的应用 |
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| 引用本文： | 丁收年,卢业举,金葆康.一种纳米铂水溶胶的制备及其在电化学上的应用[J].安徽大学学报(自然科学版),2002,26(3):74-78. |
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| 作者姓名： | 丁收年 卢业举 金葆康 |
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| 作者单位： | 1. 安徽大学,化学化工学院,安徽,合肥,230039;2. 安徽省产品质量监督检验所,安徽,合肥,230001 |
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| 基金项目： | 安徽省自然科学基金;99046129; |
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| 摘 要： | 在柠檬酸盐体系的基础上,结合电化学应用的需要,发展还原引发剂-柠檬酸盐体系,分别制备了由硼氢化钠和甲醇作还原引发剂,在柠檬酸盐体系中制备了不含有PVP等保护剂的纳米铂水溶胶.不仅简化了PtCl2-6的柠檬酸盐体系的条件,且缩短了制备纳米铂所需时间.透射电镜和纳米粒子分布仪显示制备的纳米铂水溶胶粒径为5-8nm左右.制得的纳米铂水溶胶能通过电泳法修饰到电极表面上,表现出良好的电化学活性及催化活性.
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| 关 键 词： | 纳米铂水溶胶 电极 电活性 |
| 文章编号： | 1000-2162(2002)03-0074-05 |
An approach to prepare Pt hydrosol and application in electrochemistry |
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| DING Shou-nian ,LU Ye-ju ,JIN Bao-kang.An approach to prepare Pt hydrosol and application in electrochemistry[J].Journal of Anhui University(Natural Sciences),2002,26(3):74-78. |
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| Authors: | DING Shou-nian LU Ye-ju JIN Bao-kang |
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| Institution: | DING Shou-nian 1,LU Ye-ju 2,JIN Bao-kang 1 |
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| Abstract: | Based on a standard method ,a simpler approach to fabricate Pt hydrosol is developed. In this method, we used NaBH 4 and CH 3OH asreduction-promotor.A brown stable Pt collidal was prepared without poisoning stabilisers (e.g.PVP ) . Hydrosol particles of mean diameter d c≈5-8nm was showed by TEM and ZETASIZER3000HS A.These particles were immobilized on a Au eletrode under anodic polarization to form stable Pt col /Au electrodes.Immobilised Pt particles pronounced adsorption of hydrogen and oxygen similar to pure Pt materials with electroactivity and high electrocatalytic activity. |
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| Keywords: | Pt hydrosol electrode electroactivity |
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