Deposition Mechanism of Silver Nanoparticles using ThermalDecomposition of Silver-Alkylamine Complexes Proceeding onTiO2 Support in Water

摘要

Silver nanoparticles (Ag NPs) supported on metal-oxide particles have been attractedas organic synthesis catalysts and environmental purification catalysts.In order to increasethe catalytic activity per unit amount of catalyst,it is required to immobilize the Ag NPswith high-dispersion and high-density on supports to improve the catalytic activities.Conventionally,the Ag-NP catalysts have been fabricated via a high temperature process(>300°C),however,the high temperature process often promotes the particle growth orsintering of deposited Ag NPs on supports.Therefore,alternative low-temperature methodsthat enable high-density deposition of silver nanoparticles are desired.