On apparent activation energy of structure sensitive heterogeneous catalytic reactions

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    The notion of apparent activation energy is discussed in relation to structure sensitivity of complex heterogeneous catalytic reactions comprising several steps. The cases of nonuniform surfaces (intrinsic and induced) are considered, showing that the apparent activation energy depends on the cluster size and surface coverage. The theoretical analysis of the apparent activation energy was also extended for the two step sequence with deactivating catalyst by poisoning or when coking occurs as a result of the reactant interactions with an intermediate.

    Original languageUndefined/Unknown
    Pages (from-to)1455–1463
    JournalCatalysis Letters
    Publication statusPublished - 2019
    MoE publication typeA1 Journal article-refereed


    • Chemical Engineering

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