Effect of Reaction Driving Force on Copper Nanoparticle Preparation by the Liquid Phase Reduction Method

摘要

Copper nanoparticle was prepared by the liquid phase reduction method. Cu~(2+) was reduced to a copper particle by using different types of reductant namely ascorbic acid (C_6H_8O_6), phosphinic acid (H_3PO_2), titanium sulfate (Ti_2(SO_4)_3) and sodium borohydride (NaBH_4). The effect of reaction driving force on the average size of the copper particle was investigated. An inversely proportional relationship between the reaction driving force and the average size of the copper particle was found, wherein the average size of the copper particle decreases as the reaction driving force increases.