向俊庠,罗宁,闫鸿浩,马占国,申涛,梁汉良.气相爆轰法制备球形铜纳米粒子及其形成机理[J].稀有金属材料与工程,2019,48(10):3113~3117.[xiang jun xiang,luo ning,yan hong hao,ma zhan guo,shen tao,liang han liang.Preparation and formation mechanism of spherical Cu nanoparticles by gaseous detonation[J].Rare Metal Materials and Engineering,2019,48(10):3113~3117.]
气相爆轰法制备球形铜纳米粒子及其形成机理
投稿时间:2018-03-17  修订日期:2019-09-27
中文关键词:  气相爆轰  铜纳米晶体颗粒  FCC  Kruis模型  生长特性
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      本文以氢氧混合气体为爆炸源,乙酰丙酮铜(II)为前驱体,采用操作简单、高效的气相爆轰方式合成了类球形的铜纳米晶颗粒。进一步采用XRD、TEM、SAED和EDX对所获得产物的形貌特征、物相组成和微观结构进行了表征和分析。同时为了预测气相爆轰流场中铜纳米颗粒的生长特性,将Kruis模型引入气体爆轰反应程序中。研究结果表明:实验合成的类球型FCC结构纳米铜晶体分散性良好,平均粒径在24 nm左右且纳米铜晶体外包覆了1nm左右的较薄石墨层。基于Kruis模型对球形铜纳米粒子的生长特性预测结果与实验数据吻合较好,为可控合成铜纳米粒子提供了可靠的理论指导。
Preparation and formation mechanism of spherical Cu nanoparticles by gaseous detonation
英文关键词:gaseous  detonation, copper  nanocrystal particles, FCC, Kruis  model, growth  characteristic
英文摘要:
      A simple and efficient synthesis of face-centered cubic (FCC) copper nanocrystal particles (Cu NPs) was presented by the gaseous detonation method which used the hydrogen-oxygen gases mixture as the explosion source and the copper (II) acetylacetonate as the precursor. The morphology, phase constitution and microstructure of the as-obtained products were analyzed by XRD, TEM, SAED and EDX. Meanwhile, to predict the growth characteristics of the Cu NPs, the Kruis model was tentatively integrated in reaction condition of gaseous detonation. The results showed that the as-synthesized FCC structural nanocrystalline copper with good dispersibility was coated with thinner graphite layer and the average size of particles was 24 nm. In addition, the growth characteristic of spherical Cu NPs was in consistent with the obtained experimental data based on Kruis model, which provided reliable theoretical guidance for the controllable synthesis of Cu NPs.
作者单位E-mail
向俊庠 中国矿业大学深部岩土力学与地下工程国家重点实验室 xiangjunxiang@cumt.edu.cn 
罗宁 中国矿业大学深部岩土力学与地下工程国家重点实验室 nluo@cumt.edu.cn 
闫鸿浩 大连理工大学工程力学系
大连理工大学工程力学系 
 
马占国 中国矿业大学深部岩土力学与地下工程国家重点实验室  
申涛 中国矿业大学深部岩土力学与地下工程国家重点实验室  
梁汉良 中国矿业大学深部岩土力学与地下工程国家重点实验室  
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