물 전기분해용 Pt-SPE 전극촉매의 제조에 관한 연구(I) -담지시간에 따른 영향-

강문식; 김지윤; 조영일

HWAHAK KONGHAK, Vol.37, No.1, 41-46, February, 1999

Export Citation

물 전기분해용 Pt-SPE 전극촉매의 제조에 관한 연구(I) -담지시간에 따른 영향-

A Study on Preparation of Pt-SPE Electrocatalyst for Water Electrolysis(I) -The Effect of Deposition Time-

강문식, 김지윤, 조영일

초록

고체 고분자 전해질(SPE)로 Nafion 117막을 사용하였으며, 전극물질로는 H₂PtCl₆를, 환원제로는 NaBH₄를 사용하여 물 전기분해에 대하여 연구하였다. 담지시간을 매개변수로 제조된 Pt-SPE복합체의 형태학적 및 전기화학적 특성과 물 전기분해 성능에 미치는 영향을 조사하였다. 물 전기분해 성능에 관한 실험결과 담지시간이 증가함에 따라 조전압은 감소하였으며 60분에서 최소를 나타내었고 그때의 조전압은 전류밀도 1 A/cm², 80℃에서 2.7V였다.

Nafion 117 membrane was used as the solid polymer electrolyte (SPE) and, H₂PtCl₆ and NaBH₄ were used as the electrode material and reducing agent, respectively. The effect of the deposition time was investigated on morphological, electrochemical characteristics and water electrolysis performance of prepared Pt-SPE composite. In water electrolysis performance, the cell voltage decreased as the deposition time increased. At 60 min, the cell voltage showed a minimal value of 2.7 V at a current density 1A/cm² and 80 ℃.

Keywords:Water Electrolysis;Pt-SPE Composite;Cell Voltage;Deposition Time

[References]

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Kang MS, Ph.D. Yonsei Univ., Seoul, Korea (1997)
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Wen TC, Hu CC, J. Electrochem. Soc., 139, 8 (1992)
Xing XK, Eiu CC, Electroanalysis, 3, 111 (1991)
Katayama-Aramata A, Nakajima H, Fujikawa K, Kita H, Electrochim. Acta, 28, 777 (1983)
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Blurton KF, Greenberg P, Oswin HG, Rutt DR, J. Electrochem. Soc., 119, 5 (1972)
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Liu R, Her WH, Fedkiw PS, J. Electrochem. Soc., 139, 1 (1992)
Shou H, "Denkikagakusokuteibou(I)," Gihoudou Co., Tokyo (1988)
Sakai T, Kawami Y, Takenaka H, Torikai E, J. Electrochem. Soc., 137, 12 (1990)

[1] Lu PWT, Srinivasan S, J. Appl. Electrochem., 9, 269 (1979)

[2] Millet P, Durand R, Pineri M, Int. J. Hydrog. Energy, 15, 245 (1990)

[3] Takenaka H, Torikai E, Kawami Y, Wakabayashi N, Int. J. Hydrog. Energy, 7, 397 (1982)

[4] Millet P, Pineri M, J. Appl. Electrochem., 19, 162 (1989)

[5] Millet P, Alleau T, Durand R, J. Appl. Electrochem., 23, 322 (1993)

[6] Takenaka H, Torikai E, Japan Patent, shou 53-110267 (1980)

[7] Kim J, Lee SM, Srinivasan S, Chamberlin CE, J. Electrochem. Soc., 142(8), 2670 (1995)

[8] Eames DJ, Newman J, J. Electrochem. Soc., 142(11), 3619 (1995)

[9] Wilson MS, Gottesfeld S, J. Appl. Electrochem., 22, 1 (1992)

[10] Bjornbom P, Electrochim. Acta, 32, 1 (1987)

[11] Holze R, Ahn J, J. Membr. Sci., 73, 87 (1992)

[12] Kang MS, Ph.D. Yonsei Univ., Seoul, Korea (1997)

[13] Katayama-Aramata A, Ohnishi R, J. Am. Chem. Soc., 105, 658 (1983)

[14] Wen TC, Hu CC, J. Electrochem. Soc., 139, 8 (1992)

[15] Xing XK, Eiu CC, Electroanalysis, 3, 111 (1991)

[16] Katayama-Aramata A, Nakajima H, Fujikawa K, Kita H, Electrochim. Acta, 28, 777 (1983)

[17] Nuttall LJ, Russell JH, Int. J. Hydrog. Energy, 5, 75 (1980)

[18] Blurton KF, Greenberg P, Oswin HG, Rutt DR, J. Electrochem. Soc., 119, 5 (1972)

[19] Her WH, Fedkiw PS, J. Electrochem. Soc., 136, 3 (1989)

[20] Liu R, Her WH, Fedkiw PS, J. Electrochem. Soc., 139, 1 (1992)

[21] Shou H, "Denkikagakusokuteibou(I)," Gihoudou Co., Tokyo (1988)

[22] Sakai T, Kawami Y, Takenaka H, Torikai E, J. Electrochem. Soc., 137, 12 (1990)