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[1]周玉新,侯学娟,朱　瑛,等.纳米铜粉在撞击流反应器中以次磷酸钠为还原剂的制备[J].武汉工程大学学报,2014,(01):5-8.[doi:10. 3969/j. issn. 1674-2869. 2014. 01. 002]
　ZHOU Yu-xin,HOU Xue-juan,ZHU Ying,et al.Preparation of nano copper powders using sodium hypophosphite as reducing agent in submerged circular impinging stream reactor[J].Journal of Wuhan Institute of Technology,2014,(01):5-8.[doi:10. 3969/j. issn. 1674-2869. 2014. 01. 002]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年01期
页码:
5-8
栏目:
化学与化学工程
出版日期:
2014-01-31

文章信息/Info

Title:
Preparation of nano copper powders using sodium hypophosphite as reducing agent in submerged circular impinging stream reactor
文章编号:
1674－2869（2014）01－0005－04
作者:
周玉新1; 2; 侯学娟1; 2; 朱　瑛1; 2; 曹礼洪1; 2; 郭　嘉1; 2; 沈　浩3
1. 武汉工程大学化工与制药学院，湖北 武汉430074；2. 绿色化工过程省部共建教育部重点实验室，湖北 武汉430074；3. 安徽六国化工股份有限公司，安徽 铜陵 244000
Author(s):
ZHOU Yu-xin1; HOU Xue-juan1; ZHU Ying1; CAO Li-hong1; GUO Jia1; SHEN Hao3
1.School of Chemical Engineering and Pharmacy， Wuhan Institute of Technology， Wuhan 430074，China；2.Key Laboratory for Green Chemical Process of Ministry of Education，Wuhan Institute of Technology， Wuhan 430074，China；3.Anhui Liuguo Chemical Co. ，Ltd. ， Tongling 244000，China
关键词:
浸没循环撞击流反应器; 纳米铜粉; 次磷酸钠
Keywords:
SCISR; nano copper powder; sodium hypophosphite
分类号:
TQ131.2+1
DOI:
10. 3969/j. issn. 1674-2869. 2014. 01. 002
文献标志码:
A
摘要:
运用具有良好微观混合性质的新型反应装置——浸没循环撞击流反应器，采用液相化学还原法，以次磷酸钠作为还原剂，硫酸铜为原料，聚乙烯毗咯烷酮为分散剂，进行了制备纳米铜粉的工艺研究. 探讨溶液浓度、反应物料摩尔比、反应温度、反应pH值对产品收率的影响，确定较佳工艺条件为：硫酸铜浓度为0.2 mol/L，次磷酸钠与铜摩尔比为3∶1，反应温度为70 ℃，反应溶液pH值为1.5，反应时间30 min. 采用透射电镜和X射线衍射仪对实验制备的纳米铜粉进行了表征，铜粉呈近似球形，粒径约为10 nm，且纯度很高. 其研究结果显示：浸没循环撞击流反应器对制备纳米粉体具有极大优势.
Abstract:
Using cupric sulphate as raw material， sodium hypophosphite as reducing agent， and PVP as dispersing agent， nano copper powders were prepared by chemical reduction method in a submerged circular impinging stream reactor which is a new type reaction device with good micromixing properties. The effects of relevant factors such as solution， reactant mole ratio， reaction temperature and the solution pH value on the yield of the product were investigated. The optimum conditions are cupric sulphate concentration of 0.2 mol/L， the sodium hypophosphite to copper molar ratio of 3∶1， reaction temperature of 70 ℃， the solution pH value of 1.5， and the reaction time of 30 min. The copper powders prepared in this study were characterized by transmission electron microscope and X-ray diffraction. It was found that the nano copper powders are of nearly spherical shape， the particle sizes are around 10 nm and the samples prepared have high purity. The results also indicate that it has a great advantage to prepare nano copper powders in the submerged circular impinging stream reactor.

参考文献/References:

［1］　张立德， 牟季美. 纳米材料与纳米结构［M］. 北京：科学出版社，2001：3. ZHANG Li?de，MOU Ji?mei. Nano material and structure［M］. Beijing：Science press，2001：3. （in Chinese）［2］　ZHONG Lin?wang. Characterization of nanophase materials［M］. Berlin：Wiley?VCH Verlag GmbH， 2000：13-238. ［3］　Heino P， Ristolainen E. Dislocation initiation in copper—a molecular dynamics study［J］. Nanostructured Materials，1999， 11（5）： 587-5921. ［4］　Sanders P.G，Eastman J A，Weertman J R. Elastic and tensile behavior of nanocrystalline copper and palladium［J］. Acta Materialia， 1997， 45（10）： 4019. ［5］　LiaffaD，Dragos T. Electrochemical production of the standard quality copper powders［J］. Revista de Chimie， 2000， 51（8）： 600-606. ［6］　伍沅. 浸没循环撞击流反应器：CN，ZL00230326.4［P］. 2000-07-06. WU Yuan. Submerged circular impinging stream reactor：CN，ZL00230326.4［P］. 2000?07?06. （in Chinese）［7］　伍沅，陈煜，刘华彦. 浸没循环撞击流反应器——极具应用潜力的液相和液固相反应装置［J］. 湖北化工，1999（6）：38-41. WU Yuan，CHEN Yu，LIU Hua?yan. Submerged circular impinging stream reactor——full of potential applications reaction device of liquid and liquid?solid ［J］. Hubei Chemical， 1999（6）： 38-41. （in Chinese）

相似文献/References:

[1]周玉新,程敬华.浸没循环撞击流反应器制备纳米氧化铝的工艺研究[J].武汉工程大学学报,2010,(05):1.[doi:10.3969/j.issn.16742869.2010.05.001]
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备注/Memo

备注/Memo:
收稿日期：2013-12-03基金项目：国家自然科学基金资助项目（21076165）；铜陵市科技计划项目（2011gy12）作者简介：周玉新（1957-），男，湖北武汉人，教授. 研究方向：化学工程与工艺.
更新日期/Last Update: 2014-02-24