One-Pot Synthesis of Silver Nanoplates and Charge-Transfer Complex Nanofibers

摘要

We describe a facile one-pot process to synthesize Ag nanoplates by reducing silver nitrate with 3,3',5,5'-tetramethylbenzidine(TMB)at room temperature.The silver nanoplates were highly oriented single crystals with(111)planes as the basal planes.TMB can be readily oxidized to charge-transfer(CT)complex between TMB,as a donor,and(TMB)~(2+),as an acceptor.The pi-PI interaction of the neutral amine(TMB)and diiminium structure(dication,TMB~(2+))result in the formation of one-dimensional CT complex nanofiber.The shape of silver nanostructures and the size of CT complex nanofibers could be controlled by tuning the initial molar ratio of TMB to Ag.This wet-chemical route provides a new concept for simultaneous preparing metal and CT complex nanostructures.