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

ABSTRACT: 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 NaYF4 doped with Er3+ and Yb3+ 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.

SUBMITTER: Geitenbeek RG

PROVIDER: S-EPMC5839602 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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

Geitenbeek Robin G RG Nieuwelink Anne-Eva AE Jacobs Thimo S TS Salzmann Bastiaan B V BBV Goetze Joris J Meijerink Andries A Weckhuysen Bert M BM

ACS catalysis 20180214 3

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 NaYF4 doped with Er3+ and Yb3+ was mixed with a commercial zeolite H-ZSM-5 to investigate the Methanol-to-Hydrocarbons (MTH) reaction, while monitoring the reaction products with onl ...[more]

PMID: 29527404

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