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Received April 22, 2010
Accepted June 18, 2010
articles 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.
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Electronic density enrichment of Pt catalysts by coke in the propane dehydrogenation

School of Chemical Engineering and Bioengineering, University of Ulsan, Daehakro 102, Nam-gu, Ulsan 680-749, Korea 1Department of Chemistry, University of Ulsan, Daehakro 102, Nam-gu, Ulsan 680-749, Korea 2Korea Institute of Science and Technology, Wolsong-gil 5, Seongbuk-gu, Seoul 136-791, Korea 3R&D Business Labs, Hyosung Co, Hoge-dong, Dongan-gu, Anyang, Gyeounggi 431-080, Korea
ewshin@mail.ulsan.ac.kr
Korean Journal of Chemical Engineering, February 2011, 28(2), 383-387(5), 10.1007/s11814-010-0363-8
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Abstract

We investigated the nature of coke generated in propane dehydrogenation over supported Pt catalysts by FTIR, NMR, and XPS. NMR and FTIR spectra proved that the coke produced in the reaction contained poly-aromatic rings, which was consistent with the previous result that pregraphite-like coke structure was formed. The XPS results indicated that the coke deposits consisted of sp2 hybridized carbon. All of the characterizations indicated that the pregraphite-_x000D_ like coke containing the poly-aromatic ring structure was generated over the catalysts during the propane dehydrogenation. Furthermore, the XPS measurement demonstrated that the coke deposits interacted with Pt and the electron density of Pt was enriched through the interaction.

References

Bhasin MM, McCain JH, Vora BV, Imai T, Pujado PR, Appl. Catal. A: Gen., 221(1-2), 397 (2001)
Sanfilippo D, CATTECH., 4, 56 (2000)
Jackson SD, Kelly GJ, Webb G, J. Catal., 176(1), 225 (1998)
Guisnet M, Magnoux P, Appl. Catal. A: Gen., 212(1-2), 83 (2001)
Barbier J, Churin E, Marecot P, J. Catal., 126, 228 (1990)
Barias OA, Holmen A, Blekkan EA, J. Catal., 158(1), 1 (1996)
Bonardet JL, Barrage MC, Fraissard J, J. Mol. Catal. A., 96, 123 (1995)
Yu CL, Ge QJ, Xu HY, Li WZ, Catal. Lett., 112(3-4), 197 (2006)
Aguilar-Rios G, Salas P, Valenzuela MA, Armendariz H, Wang JA, Salmones J, Catal. Lett., 60(1-2), 21 (1999)
de Miguel SR, Jablonski EL, Castro AA, Scelza OA, J. Chem. Technol. Biotechnol., 75(7), 596 (2000)
Hullmann D, Wendt G, Singliar U, Ziegenbalg G, Appl. Catal. A: Gen., 225(1-2), 261 (2002)
Larsson M, Hulten M, Blekkan EA, Andersson B, J. Catal., 164(1), 44 (1996)
Yu CL, Ge QJ, Xu HY, Li WZ, Appl. Catal. A: Gen., 315, 58 (2006)
Zhang YW, Zhou YM, Liu H, Wang Y, Xu Y, Wu PC, Appl. Catal. A: Gen., 333(2), 202 (2007)
Vu BK, Bok SM, Ahn IY, Shin EW, Catal. Lett., 133(3-4), 376 (2009)
Zhao DY, Feng JL, Huo QS, Melosh N, Fredrickson GH, Chmelka BF, Stucky GD, Science, 279(5350), 548 (1998)
Magnoux P, Roger P, Canaff C, Fouche V, Gnep NS, Guisnet M, Delmon B, Froment GF, Stud. Surf. Sci. Catal., 34, 317 (1987)
Breitmaier E, Voelter W, Carbon-13 Nmr spectroscopy: Highresolution methods and applications in organic chemistry and biochemistry, Gordon & Breach Science Pub., New York (1987)
Snape CE, Ladner WR, Bartle KD, Anal. Chem., 51, 2189 (1979)
Martin N, Viniegra M, Zarate R, Espinosa G, Batina N, Catal. Today., 107, 719 (2005)
Mayo DW, Miller FA, Hannah RW, Course notes on the interpretation of infrared and raman spectra, Wiley-Interscience, New Jersey (2004)
Desimoni E, Casella GI, Morone A, Salvi AM, Surf. Interf.Anal., 15, 627 (1990)
Walker GS, Pyke DR, Werrett CR, Williams E, Bhattacharya AK, Appl. Surf. Sci., 147, 228 (1999)
Retzko I, Unger WES, Adv. Eng. Mater., 5, 519 (2003)
Paal Z, Schlogl R, Ertl G, Catal. Lett., 12, 331 (1992)
Ono S, Kikegawa T, Ohishi Y, Solid State Commun., 133, 55 (2005)
Weckhuysen BM, Rosynek MP, Lunsford JH, Catal. Lett., 52(1-2), 31 (1998)
Resasco DE, Marcus BK, Huang CS, Durante VA, J. Catal., 146(1), 40 (1994)
de Vekki A, Kraev Y, Solovykh A, Pet. Chem., 48, 210 (2008)
Arai M, Ishikawa T, Nakayama T, Nishiyama Y, J. Colloid Interf. Sci., 97, 254 (1984)
Okumura K, Niwa M, Catalysis Surveys from Japan., 5, 121 (2002)

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