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- 저자 : 채재근 (검색결과 4 건)
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채재근,강문식,한학수,설용건,조영일 ( Jae Keun Chae,Mun Sik Kang,Hak Soo Han,Yong Gun Shul,Yung Il Joe ) 한국화학공학회 1996 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.34 No.6
SPE electrocatalysts were made by reducing agent penetrating method. Pt loading, morphological, and electrochemical characteristics and cell voltage properties were investigated. The amount of Pt loading increased upto the reducing agent concentration of 1.0 ㏖/L and then decreased. At that concentration, the amount of Pt loading was the most, 3.56㎎/㎠ and Pt layer was the thickest. The largest electricity and roughness factor from cyclic voltammogram were 284.92 mC and 1356.75 respectively at the reducing agent concentration 1.0 ㏖/L. But surface area per unit weight of Pt was somewhat lower. As the amount of Pt loading increased, cell voltage became lower. At the amount of Pt loading 3.56㎎/㎠, current density 1 A/㎠, and temperature 25℃ it was the lowest, 3.0 V. As temperature increased, cell voltage became lower. Cell voltages at 50℃, 80℃ were 2.9 V, 2.7 V respectively under the condition of 3.56 ㎎/㎠, 1 A/㎠, It was at the reducing agent concentration 1.0 ㏖/L.
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채재근,설용건,한학수,강문식,조영일 연세대학교 산업기술연구소 1995 논문집 Vol.27 No.2
Studies have been made on Pt-Solid Polymer Electrolyte(SPE). Perfluorosulfonic acid polymer membranes (Dupont manufactured Nofion) were used as SPE. Pt was directly attached to both sides of the membrane by reductant penetrating method. We have analyzed characteristic properties of the fabricated Pt-SPE. As a result, Pt loadings, electricity and roughness factor showed maximum values at 1 ㏖/L NaBH₄. Optimum concentration of reducing agent of Pt-SPE preparation was found at 1㏖/L NaBH₄for 5 m㏖/L H₂PtCl??.
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수소 생산을 위한 SPE - 전극촉매의 제조법에 따른 성능비교
강문식(Mun Sik Kang),한학수(Hak Soo Han),설용건(Yong Gun Shul),조영일(Yung Il Joe),채재근(Jae Keun Chae),오정훈(Jeong Hun Oh),심규성(Kyu Sung Sim) 한국화학공학회 1997 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.35 No.2
We were prepared SPE-composites with reductant penetrating method and impregnation-reduction method. And its characteristic properties were investigated by morphological analysis, electrochemical experiment and water electrolysis. As a result of the morphological analysis, Pt of SPE-composites prepared by reductant penetrating and impregnation-reduction method was deposited outward, inward respectively. From the electrochemical experiment, reductant penetrating method is better than impregnation-reduction method. As a result of water electrolysis, we confirmed that reductant penetrating method is better.
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