Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received September 27, 2005
Accepted October 24, 2005
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Selective CO oxidation in the presence of hydrogen over supported Pt catalysts promoted with transition metals
Department of Chemical Engineering, Division of Chemical Engineering and Materials Engineering, Ajou University, Wonchun-Dong Yeongtong-Gu Suwon 443-749, Korea 1Energy Laboratory, Samsung Advanced Institute of Technology (SAIT), P.O. Box 111, Suwon 440-600, Korea
edpark@ajou.ac.kr
Korean Journal of Chemical Engineering, March 2006, 23(2), 182-187(6), 10.1007/BF02705713
Download PDF
Abstract
Selective CO oxidation in the presence of excess hydrogen was studied over supported Pt catalysts promoted with various transition metal compounds such as Cr, Mn, Fe, Co, Ni, Cu, Zn, and Zr.CO chemisorption, XRD, TPR, and TPO were conducted to characterize active catalysts. Among them, Pt-Ni/-Al2O3 showed high CO conversions over wide reaction temperatures. For supported Pt-Ni catalysts, Alumina was superior to TiO2 and ZrO2 as a support. The catalytic activity at low temperatures increased with increasing the molar ratio of Ni/Pt. This accompanied the TPR peak shift to lower temperatures. The optimum molar ratio between Ni and Pt was determined to be 5. This Pt-Ni/-Al2O3 showed no decrease in CO comversion and CO2 selectivity for the selective CO oxidation in the presence of 2 vol% H2O and 20 vol% CO2. The bimetallic phase of Pt-Ni seems to give rise to stable activity with high CO2 selectivity in selective oxidation of CO in H2-rich stream.
Keywords
References
Cho SH, Park JS, Choi SH, Kim SH, J. Power Sources, in press
Korotkikh O, Farrauto R, Catal. Today, 62(2-3), 249 (2000)
Kwak C, Park TJ, Suh DJ, Chem. Eng. Sci., 60(5), 1211 (2005)
Kwak C, Park TJ, Suh DJ, Appl. Catal. A: Gen., 278(2), 181 (2005)
Lee SH, Han J, Lee KY, Korean J. Chem. Eng., 19(3), 431 (2002)
Liu XS, Korotkikh O, Farrauto R, Appl. Catal. A: Gen., 226(1-2), 293 (2002)
Manasilp A, Gulari E, Appl. Catal. B: Environ., 37(1), 17 (2002)
Minemura Y, Ito S, Miyao T, Naito S, Tomishige K, Kunimori K, Chem. Commun.(11), 1429 (2005)
Oh SH, Sinkevitch RM, J. Catal., 142, 254 (1993)
Pedrero C, Waku T, Iglesia E, J. Catal., 233(1), 242 (2005)
Shore L, Farrauto RJ, PROX catalysts, Handbook of Fuel Cells: Fundamentals Technology and Applications, Vielstich, W., Lamm, A. and Gasteiger, H. A., eds., John Wiley & Sons Ltd (2003)
Sirijaruphan A, Goodman JG, Rice RW, J. Catal., 224(2), 304 (2004)
Son IH, Lane AM, Catal. Lett., 76(3-4), 151 (2001)
Son IH, Shamsuzzoha M, Lane AM, J. Catal., 210(2), 460 (2002)
Son JE, Korean Chem. Eng. Res., 42(1), 1 (2004)
Suh DJ, Kwak C, Kim JH, Kwon SM, Park TJ, J. Power Sources, 142(1-2), 70 (2005)
Takenaka S, Shimizu T, Otsuka K, Int. J. Hydrog. Energy, 29, 1065 (2004)
Watanabe M, Uchida H, Ohkubo K, Igarashi H, Appl. Catal. B: Environ., 46(3), 595 (2003)
Wieland S, Melin T, Membrane reactor concepts, Handbook of Fuel Cells: Fundamentals Technology and Applications, Vielstich, W., Lamm, A. and Gasteiger, H. A., eds., John Wiley & Sons Ltd (2003)
Korotkikh O, Farrauto R, Catal. Today, 62(2-3), 249 (2000)
Kwak C, Park TJ, Suh DJ, Chem. Eng. Sci., 60(5), 1211 (2005)
Kwak C, Park TJ, Suh DJ, Appl. Catal. A: Gen., 278(2), 181 (2005)
Lee SH, Han J, Lee KY, Korean J. Chem. Eng., 19(3), 431 (2002)
Liu XS, Korotkikh O, Farrauto R, Appl. Catal. A: Gen., 226(1-2), 293 (2002)
Manasilp A, Gulari E, Appl. Catal. B: Environ., 37(1), 17 (2002)
Minemura Y, Ito S, Miyao T, Naito S, Tomishige K, Kunimori K, Chem. Commun.(11), 1429 (2005)
Oh SH, Sinkevitch RM, J. Catal., 142, 254 (1993)
Pedrero C, Waku T, Iglesia E, J. Catal., 233(1), 242 (2005)
Shore L, Farrauto RJ, PROX catalysts, Handbook of Fuel Cells: Fundamentals Technology and Applications, Vielstich, W., Lamm, A. and Gasteiger, H. A., eds., John Wiley & Sons Ltd (2003)
Sirijaruphan A, Goodman JG, Rice RW, J. Catal., 224(2), 304 (2004)
Son IH, Lane AM, Catal. Lett., 76(3-4), 151 (2001)
Son IH, Shamsuzzoha M, Lane AM, J. Catal., 210(2), 460 (2002)
Son JE, Korean Chem. Eng. Res., 42(1), 1 (2004)
Suh DJ, Kwak C, Kim JH, Kwon SM, Park TJ, J. Power Sources, 142(1-2), 70 (2005)
Takenaka S, Shimizu T, Otsuka K, Int. J. Hydrog. Energy, 29, 1065 (2004)
Watanabe M, Uchida H, Ohkubo K, Igarashi H, Appl. Catal. B: Environ., 46(3), 595 (2003)
Wieland S, Melin T, Membrane reactor concepts, Handbook of Fuel Cells: Fundamentals Technology and Applications, Vielstich, W., Lamm, A. and Gasteiger, H. A., eds., John Wiley & Sons Ltd (2003)
