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不同还原剂对金纳米颗粒合成的影响
引用本文:王国军,姚瑰玮,马士禹,陈邦林.不同还原剂对金纳米颗粒合成的影响[J].化学世界,2011,52(3):129-132.
作者姓名:王国军  姚瑰玮  马士禹  陈邦林
作者单位:华东师范大学,化学系,上海,200062
摘    要:利用种子生长法,分别用盐酸羟胺和抗坏血酸作还原剂合成了不同大小的金纳米颗粒.研究了不同还原剂对金纳米颗粒形貌、粒径和单分散性的影响.实验结果表明,用盐酸羟胺作还原剂合成的金纳米颗粒的单分散性较好.这主要是由于盐酸羟胺的还原性弱于抗坏血酸,反应过程中不会发生二次成核.

关 键 词:种子生长法  金纳米颗粒  二次成核  单分散性

Effects of Different Reductants on the Synthesis of Au Nanoparticles
WANG Guo-jun,YAO Gui-wei,MA Shi-yu,CHEN Bang-lin.Effects of Different Reductants on the Synthesis of Au Nanoparticles[J].Chemical World,2011,52(3):129-132.
Authors:WANG Guo-jun  YAO Gui-wei  MA Shi-yu  CHEN Bang-lin
Abstract:Au nanoparticles with different sizes were synthesized by seeding growth method using hydroxylamine hydrochloride or ascorbic acid as reductants.The effects of different reductants on the morphology,particle size and monodispersity of products were investigated.The results showed that monodispersity of Au nanoparticles synthesized using hydroxylamine hydrochloride was better than that of ascorbic acid.This is mainly due to the weaker reducibility of hydroxylamine hydrochloride compared to ascorbic acid and the absence of the secondary nucleation.
Keywords:seeding growth method  Au nanoparticles  secondary nucleation  monodispersity
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