In Situ Luminescence Thermometry To Locally Measure Temperature Gradients during Catalytic Reactions.

ACS Catal

Condensed Matter and Interfaces, Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.

Published: March 2018

Bandshape luminescence thermometry during in situ temperature measurements has been reported by preparing three catalytically relevant systems, which show temperature-dependent luminescence. One of these systems was further investigated as a showcase for application. Microcrystalline NaYF doped with Er and Yb was mixed with a commercial zeolite H-ZSM-5 to investigate the Methanol-to-Hydrocarbons (MTH) reaction, while monitoring the reaction products with online gas chromatography. Due to the exothermic nature of the MTH reaction, a front of increased temperature migrating down the fixed reactor bed was visualized, showing the potential for various applications of luminescence thermometry for in situ measurements in catalytic systems.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5839602PMC
http://dx.doi.org/10.1021/acscatal.7b04154DOI Listing

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