摘要
采用硼氢化钠还原法制得聚乙烯吡咯烷酮（PVP）保护的Pt／Au纳米双金属簇，用TEM、UV—VIS吸收光谱进行了表征，从制备方法、还原顺序、金属不同摩尔比等方面对双金属簇的影响进行了研究。分别制得了Pt/Au合金及Pt／Au核壳结构的直径在2～5nm的纳米双金属簇。
Poly （N-vinyl-2-pyrrolidone） （PVP） protected Pt/Au bimetallic nano-clusters were prepared by sodium borohydride and characterized through TEM, UV-VIS. The effect of preparation method, reduction sequence, mole rate of platinum and gold etc for bimetallic nano-clusters was studied. The mixed alloy of Pt/Au and Pt/Au core/shell were prepared with the particles of 2 -5nm.
出处
《江苏技术师范学院学报》
2007年第2期44-47,51,共5页
Journal of Jiangsu Teachers University of Technology
关键词
Pt/Au双金属簇
硼氢化钠
还原顺序
Pt/Au bimetallic nano-clusters
sodium borohydride
reduction sequence
