수열합성법으로 합성된 나노 Sm x Ce 1-x O 2-2/x 분말의 수계 분산

배동식; 김은정; 한경섭; Dong-Sik Bae; Eun-Jung Kim; Kyong-Sop Han

Korean Journal of Materials Research, Vol.15, No.2, 112-114, February, 2005

DOI10.3740/MRSK.2005.15.2.112 Export Citation

수열합성법으로 합성된 나노 Sm x Ce 1-x O 2-2/x 분말의 수계 분산

Dispersion of Sm x Ce 1-x O 2-2/x Nanoparticles which is Synthesized by Hydrothermal Process in Aqueous System

배동식^†, 김은정¹, 한경섭¹

창원대학교 세라믹공학과
¹한국과학기술연구원 재료연구부

Dong-Sik Bae^†, Eun-Jung Kim¹, and Kyong-Sop Han¹

Dept. of Ceram. Sci. & Eng., Changwon National University, Gyeongnam 641-773, Korea
¹Division of Ceramics, Korea Institute of Science and Technology, Seoul, Korea

E-mail:

Dispersion stability of the Sm x Ce 1?x O 2?2/x nanoparticles, which was produced by hydrothermal process, was studied in aqueous suspension using ESA (Eletrokinetic Sonic Amplitude). The average particle size of the synthesized Sm x Ce 1?x O 2?2/x at nanoparticles was about 5±2nm . The dispersion and rheological behavior of the Sm x Ce 1?x O 2?2/x nanoparticles aqueous suspension was investigated using NH 4 OHandHNO 3 as a disperse agent. The colloidal stability of aqueous suspensions with Sm x Ce 1?x O 2?2/x nanoparticles at different pH values has been investigated by means of zeta potential, average particle size, and the distribution of synthesized Sm x Ce 1?x O 2?2/x nanoparticles. The isoelectric point of the Sm x Ce 1?x O 2?2/x nanoparticles was at pH around 11 and the value of zeta potential was at its maximum near pH 6.5.

Keywords:dispersion stability;hydrothermal process;aqueous system

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[1] Tsunekawa S, Sahara R, Kawazoe Y, Kasuya A, Mater. Trans. JIM, 41, 1104 (2000)

[2] Trovarelli A, de Leitenburg C, Boaro M, Dolcetti G, Catal. Today, 50(2), 353 (1999)

[3] Lee SH, Lu ZY, Babu SV, Matijevic E, J. Mater. Res., 17, 2744 (2002)

[4] Bekyarova E, Fornasiero P, Kaspar J, Graziani M, Catal. Today, 45(1-4), 179 (1998)

[5] Yahiro H, Baba Y, Eguchi K, Arai H, J. Electrochem. Soc., 135, 2077 (1988)

[6] Izu N, Shin W, Murayarna N, Kanzaki S, Sens, Actuator B: Chem., 87, 95 (2002)

[7] Jiang M, Wood ND, Komanduri R, J. Eng. Mater. Technol: Trans. ASME, 120, 304 (1998)

[8] Inaba H, Tagawa H, Solid State Ion., 83(1-2), 1 (1996)

[9] Chu X, Chung W, Schmidt LD, J. Am. Ceram. Soc., 76, 2115 (1993)

[10] Hakuta Y, Onai S, Terayama H, Adschiri T, Arai K, J. Mater. Sci. Lett., 17(14), 1211 (1998)

[11] Wu NC, Shi EW, Zheng YQ, Li WJ, J. Am. Ceram. Soc., 85(10), 2462 (2002)

[12] Hirano M, Kato E, J, Am. Ceram. Soc., 82, 786 (1999)

[13] Uekawa N, Ueta M, Wu YJ, Kakegawa K, Chem. Lett., 845 (2002)

[14] Verdon E, Devalette M, Dernazeau G, Mater. Lett., 25, 127 (1995)

[15] Dong XT, Hong GY, Yu DC, Yu DS, J. Mater. Sci. Technol, 13, 113 (1997)

[16] Masui T, Fujiwara K, Machida K, Adachi G, Sakata T, Mori H, Chem. Mater., 9, 2197 (1997)

[17] Zhou XD, Huebner W, Anderson HU, Appl. Phys. Lett., 80, 3814 (2002)

[18] Chen PL, Chen IW, J. Am. Ceram. Soc., 76, 1577 (1993)

[19] van Dyk AC, Heyns AM, J. Colloid Interface Sci., 206(2), 381 (1998)

[20] Tartai P, Reece M, Moya JS, J. Am. Ceram. Soc., 81(2), 389 (1998)

[21] Hayashi H, Sagawa R, Inaba H, Kawamura K, Solid State Ion., 131(3-4), 281 (2000)