Preparation of Capacitor Tantalum Powder by Electro-deoxidation of Molten Salt AITranslate
Abstract AITranslate
Tantalum metal powder was prepared by electro-deoxidation of molten salt （FFC）. The morphology of the prepared tantalum powder was observed by SEM and TEM, and its size distribution, chemical composition and electrical properties were also analyzed. The results show that the prepared tantalum pow- der has an original particle size of 200~400 nm,and particle bonds with each other and looks like coral. Its oxygen content is decreased to 3.69）K 10^-3 and specific capacitance is above 80 000 μF·V/g to meet with the requirement for capacitor production. Based on calculation,the current efficiency of the above tantalum powder preparation process is only 30%. To achieve industrial application the low current efficiency of the electrolysis process must be improved
KeyWords AITranslate
1黄伯云,李成功.中国材料大典[M].北京:化学工业出版社.2006:1032-1123.
2何季麟.世界钽粉生产工艺的发展[J].中国工程科学,2001,3(12):85-89. 被引量：35
3Park H, Okabe T H, Lee O Y, et al. Semi-continuous production of tantalum powder by electronically media- ted reaction [J ]. Materials Transactions, 2002,43 (8): 2 080-2086.
4何季麟.钽铌工业的进步与展望[J].稀有金属,2003,27(1):23-27. 被引量：41
5郭胜惠,彭金辉,张世敏,张利波,范兴祥.CaCl_2体系中电解还原TiO_2制取钛的研究[J].稀有金属,2004,28(6):1091-1094. 被引量：23
6Yan X Y,Fray D J. Production of niobium powder by direct electrochemical reduction of Nb2O5 in a eutectic CaCl2-NaCl melt[J]. Metal Trans B, 2002,33:685-693.
7胡小锋,许茜.CaCl_2-NaCl熔盐电脱氧法制备金属Ta[J].金属学报,2006,42(3):285-289. 被引量：44
8高筠,周正,王岭,戴磊,朱书全.FFC剑桥工艺及其应用研究[J].现代化工,2007,27(z1):352-354. 被引量：4
9George Z Chen,Derek J Fray, Tom W Farthing. Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chloride[J]. Nature, 2000, 407 (21) :361-363.
10Chen G Z,Fray D J. Voltametric studies of the oxygentitanium binary system in molten calcium chloride[J]. Journal of the Electrochemical Society, 2002,149 ( 11 ) : E455-E467.
1杨国启,何季麟,郑爱国,罗文,周小军,李军义.电容器级高比容钽粉制备工艺研究进展[J].湖南有色金属,2014,30(1):48-52. 被引量：17
2杨国启,孙宇,李仲香,陈学清,林辅坤,程越伟,雒国清.高压高比容钽粉的制备及性能表征[J].湖南有色金属,2017,33(2):43-47. 被引量：3
3杨国启,李仲香,李慧,马海燕,雒国清,赵春霞.高氮含量电容器级钽粉末的制备工艺研究[J].湖南有色金属,2018,34(5):50-52. 被引量：2
4陈义武,谢宏伟,屈佳康,陈瑞祥,尹华意.LiCl-NaCl熔盐中金属钽电化学脱氧过程研究[J].稀有金属与硬质合金,2021,49(1):13-18.
1李仲香,杨国启,程越伟,陈学清,李霞.表面活性剂在钽粉球磨工艺中的应用研究[J].湖南有色金属,2016,32(6):40-43. 被引量：1
2李慧,雒国清,程越伟,马跃忠,杨国启,柏林,马海燕.高比容钽粉的微观结构及电性能特性的研究[J].湖南有色金属,2017,33(1):48-52. 被引量：4
3杨国启,孙宇,李仲香,陈学清,林辅坤,程越伟,雒国清.高压高比容钽粉的制备及性能表征[J].湖南有色金属,2017,33(2):43-47. 被引量：3
4雒国清,李慧,赵春霞,马海燕.不同粒度高比容钽粉性能分析[J].湖南有色金属,2017,33(5):45-48. 被引量：2
5李丽君,杨国启,梁宏源,马应会.KCl/NaCl中pH的测定[J].湖南有色金属,2017,33(5):71-73.
6赵勇刚,赵春霞,雒国清,杨国启,马海燕.高压用FTW800钽粉性能的研究[J].湖南有色金属,2017,33(6):52-55. 被引量：3
7王晓明,雒国清,杨国启,赵春霞.包装对钽粉碳含量影响的研究[J].湖南有色金属,2018,34(2):48-50. 被引量：1
8杨国启,李仲香,李慧,马海燕,雒国清,赵春霞.高氮含量电容器级钽粉末的制备工艺研究[J].湖南有色金属,2018,34(5):50-52. 被引量：2
9赵春霞,赵勇刚,王晓明,王小明,颜景熠.金属杂质含量对钽粉电性能影响的研究[J].湖南有色金属,2019,35(1):48-50. 被引量：3
10王小明,赵春霞,王晓明.钽粉中碳的来源及其对电性能影响的研究[J].湖南有色金属,2019,35(6):49-50. 被引量：3
1包玺芳,马跃忠,王治道,李仲香.金属钽粉湿法提纯的水洗和酸洗方法研究[J].宁夏工程技术,2012,11(1):46-48. 被引量：7
2周慧琴.高松装密度金属钽粉的生产制备工艺探讨[J].世界有色金属,2016,0(9):116-116.
3曹七林,姚卫东.陶瓷电容器用Nb_2O_5的制备[J].稀有金属与硬质合金,2008,36(3):43-44. 被引量：2
4于晨.有色金属国家标准、行业标准审定和讨论会在景德镇召开[J].中国金属通报,2008,0(21):4-4.
5李先学,王文菊,齐鹏昆,邱国彪,罗小铭,苏士杰.沉淀法合成珊瑚状Nd:Y_2O_3超细粉体[J].化学工程与装备,2009(1):59-61.
6李济华.氟钽酸钾中控制碳量原因及剔除方法[J].稀有金属与硬质合金,1995,23(1):40-41. 被引量：4
7江国健,庄汉锐,李文兰,邬凤英,张宝林.高压氮气中自蔓延燃烧合成氮化铝及其显微结构[J].粉末冶金技术,1998,16(1):26-32. 被引量：4
8钟全雄,杨斌.高比容铝电解电容器用负极箔制造工艺研究[J].江西理工大学学报,2008,29(1):71-75. 被引量：1
9袁宁峰,温晓立,王丹鹏,潘伦桃,张庆生.新型片式电容器用高比容铌粉的特性[J].稀有金属,2003,27(1):178-182. 被引量：2
10王东新,王学泽,钟景明.不同比容团化钽粉颗粒结构比较[J].宁夏工程技术,2005,4(1):57-59. 被引量：5
Basic Information:
DOI：
Chinese Library Classification Number:TF123.24[冶金工程—粉末冶金]
Citation Information:
Tantalum metal powder was prepared by electro-deoxidation of molten salt （FFC）. The morphology of the prepared tantalum powder was observed by SEM and TEM, and its size distribution, chemical composition and electrical properties were also analyzed. The results show that the prepared tantalum pow- der has an original particle size of 200~400 nm,and particle bonds with each other and looks like coral. Its oxygen content is decreased to 3.69）K 10^-3 and specific capacitance is above 80 000 μF·V/g to meet with the requirement for capacitor production. Based on calculation,the current efficiency of the above tantalum powder preparation process is only 30%. To achieve industrial application the low current efficiency of the electrolysis process must be improved
quote
| GB/T 7714-2015 | [1] LI Jun-yi, SUN Ben-shuang, WANG Dong-xin, et al. Preparation of Capacitor Tantalum Powder by Electro-deoxidation of Molten Salt[J]. Rare Metals and Cemented Carbides, 2011(3): 21-24. |
| MLA | [1] LI Jun-yi, et al., "Preparation of Capacitor Tantalum Powder by Electro-deoxidation of Molten Salt." Rare Metals and Cemented Carbides, no. 3, 2011, pp. 21-24. |
| APA | [1] LI Jun-yi, SUN Ben-shuang, WANG Dong-xin, REN Xiao, HE Ji-lin, & ZHAO Yong. (2011). Preparation of Capacitor Tantalum Powder by Electro-deoxidation of Molten Salt. Rare Metals and Cemented Carbides(3), 21-24. |
| IEEE | [1] LI Jun-yi, SUN Ben-shuang, WANG Dong-xin, REN Xiao, HE Ji-lin, and ZHAO Yong, "Preparation of Capacitor Tantalum Powder by Electro-deoxidation of Molten Salt," Rare Metals and Cemented Carbides, no. 3, pp. 21-24, 2011. keywords: {FFC method;tantalum powder;capacitor;current efficiency} |