Cover Picture: Single-Particle Spectroscopy of Alcohol-to-Olefins over SAPO-34 at Different Reaction Stages: Crystal Accessibility and Hydrocarbons Reactivity (ChemCatChem 3/2014)

Authors

  • Qingyun Qian,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands), Fax: (+31) 30-251-1027
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  • Dr. Javier Ruiz-Martínez,

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands), Fax: (+31) 30-251-1027
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands), Fax: (+31) 30-251-1027

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  • Prof. Mohamed Mokhtar,

    1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)
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  • Prof. Abdullah M. Asiri,

    1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)
    2. Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)
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  • Prof. Shaeel A. Al-Thabaiti,

    1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)
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  • Prof. Suliman N. Basahel,

    1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia)
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  • Prof. Dr. Bert M. Weckhuysen

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands), Fax: (+31) 30-251-1027
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands), Fax: (+31) 30-251-1027

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Abstract

original image

Combine and shine The cover picture shows the concept of synchrotron-based IR and UV/Vis microspectroscopy techniques monitoring the methanol-to-olefins reaction on a single SAPO-34 crystal and the spatially resolved information obtained on the retained hydrocarbon species and crystal accessibility, as projected on the two screens. In their Full Paper on p. 772 ff., Q. Qian, J. Ruiz-Martínez, B. M. Weckhuysen et al. applied in situ synchrotron-based IR and UV/Vis microscopy in combination with isotopic switching experiments to identify the different hydrocarbon species formed and to assess the reactivity and accessibility of individual SAPO-34 crystals. Major differences have been observed between the methanol-to-olefins and ethanol-to-olefins processes in terms of the number of reaction stages and the formation and activity of distinct hydrocarbon species, such as alkylated mono- and polyaromatics.

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