溶胶-凝胶法设计与制备金属及合金纳米材料的研究进展

王庆庆,王锦玲,姜胜祥,李平云

Recent Progress in Sol-Gel Method for Designing and Preparing Metallic and Alloy Nanocrystals

Qingqing WANG,Jinling WANG,Shengxiang JIANG,Pingyun LI

图4 溶胶-凝胶法制备的Ni纳米粒子的XRD谱图。(a)以阿拉伯糖为螯合剂，硝酸镍为镍源，去离子水为溶剂，聚乙烯吡咯烷酮(PVP、K-30)为分散剂；(b)以邻苯二酚为螯合剂，硝酸镍为镍源，去离子水为溶剂，PVP为分散剂；(c)以柠檬酸为螯合剂，乙酰丙酮镍为镍源，无水乙醇为溶剂，十八胺为分散剂；(d)以戊二醛为螯合剂，乙酰丙酮镍为镍源，tween 20为分散剂，无水乙醇为溶剂

Fig 4 XRD analysis results of Ni nanocrystals being calcinated at different temperatures by using sol-gel process. (a) L-arabinise was chelating agent, Ni(NO3)2·6H2O was nickel source, PVP was surfactant, and solvent was de-ionized water; (b) 1, 2-benzenediol was chelating agent, Ni(NO3)2·6H2O was nickel source, PVP was surfactant, and solvent was de-ionized water; (c) citric acid was chelating agent, Ni(acac)2 was nickel source, octadecylamine was surfactant, and solvent was absolute ethanol. (d) glutaraldyde was chelating agent, Ni(acac)2 was nickel source, tween 20 was surfactant, and solvent was absolute ethanol.