探索了交叉共沉淀法制备纳米方钴矿化合物CoSb3.以钴和锑的氯化物为原料,NaOH和氨水为沉淀剂,室温下调节pH=5～10,经过滤、洗涤、超声分散和真空干燥后得到了Co(OH)2和Sb2O3前驱体.研究了还原热处理过程中还原气氛、温度、时间、原料配比对还原产物的相组成和粉体粒径的影响.结果表明,采用纯H2为还原气氛,500℃下还原3h,当Sb/Co摩尔比为3.15时,可得到粒径均匀、平均粒径约为100nm的单相CoSb3粉体.
参考文献
| [1] | Caillat T,Fleurial J P,Borshchevsk A.J.Crystal Gowth,1996,166:722-725. |
| [2] | Fleurial J P,Caillat T,Borshchevsk A.In Proc.16th Inter.Conf.On Thermoelectrics.IEEE,Piscatawey,NJ,1997.1-11. |
| [3] | Feldman J L,Sing D J,Sales B C,et al.Phys.Rve.,2000,B61:9209-9212. |
| [4] | Goldsmid H J.Proc.18th International Conference on Thermoelectrics,1999.531-535. |
| [5] | Sales B C.MRS Bulletin,1998,23 (1):15-21. |
| [6] | Nolas G S,Morelli D T,Tritt T M.Annu.Rev.Mater.Sci.,1999,29:89-92. |
| [7] | Caillat T,Kullech J,Borshchevsky A.J Appl Phys,1996,79 (11):8419-8422. |
| [8] | Sale B C,Mandrus D,Willams R K.Science,1996,272:1325-1327. |
| [9] | Tang X F,Chen L D,Zhang Q J,et al.22nd Inter.Conf.On Thermoelectrics.IEEE,2003.105-108. |
| [10] | Nolas G S,Takizawa H,Johnson D C,et al.Appl.Phys.Lett.,2000,77:52-54. |
| [11] | Sale B C,Chakoumakos B C,Mandrus D.Phys.Rev.,2000,B61 (1):2475-2478. |
| [12] | Chen L D,Kawahara T,Tang X F,et al.J.Appl.Phys.,2001,90:1864-1867. |
| [13] | Puyet M,Lenoir B,Muller E,et al.J.Appl.Phys.,2004,95:4852-4855. |
| [14] | Sharp J,Jones E C,Sales B C,et al.J.Appl.Phys.,1995,78:1013-1016. |
| [15] | Wang M,Zhang Yu,Muhammed M.NanoStructured Materials,1999,12:237-240. |
| [16] | Luca Bertini,Christian Stiewe,Muhammet Toprak,et al.Journal of Applied Physics,2003,93 (1):438-447. |
| [17] | Yu B L,Tang X F,Zhang Q J,et al.22nd Inter.Conf.On Thermoelectrics.IEEE,2003.101-104. |
| [18] | Yu Hong,Wang Jiyang,Hu Xiaobo,et al.Journal of Alloys and Compounds.,2002,334:313-316. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%