Utilization of the three-dimensional volcano surface to understand the chemistry of multiphase systems in heterogeneous catalysis

Jun Cheng, Peijun Hu

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

CO hydrogenation is used as a model system to understand why multiphase catalysts are chemically important in heterogeneous catalysis. By including both adsorption and subsequent surface reactions, kinetic equations are derived with two fundamental properties, the chemisorption energies of C and O (Delta H-C and Delta H-O, respectively). By plotting the activity against Delta H-C and Delta H-O, a 3-D volcano surface is obtained. Because of the constraint between Delta H-C and Delta H-O on monophase systems, a maximum can be achieved. However, if multiphase systems are used, such a constraint can be released and the global maximum may be achieved.
Original languageEnglish
Article number10868
Pages (from-to)10868-1
Number of pages1
JournalJournal of the American Chemical Society
Volume130
Issue number33
Early online date24 Jul 2008
DOIs
Publication statusPublished - 20 Aug 2008

ASJC Scopus subject areas

  • Chemistry(all)

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