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Ambient pressure thermal desorption spectroscopy (AP-TDS) of NiO/SiO2 catalysts

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Abstract

The Sabatier reaction is a key process in the “power-to-gas” application which is considered to contribute to future chemical energy storage systems. In this contribution we focus on the catalytic active sites of a NiO catalyst supported on SiO2 (NiO/SiO2) which is commonly used in the Sabatier reaction. A novel technique for the characterization of the active sites is presented and discussed using thermal desorption spectroscopy at ambient pressure. This analytical tool is operated under reaction conditions and allows element specific measurements during the catalytic process of CO2 reforming towards methane. Beside the desorption experiments, XPS and XAS measurements of pristine and catalytically used samples are performed to determine the influence of the Sabatier reaction conditions on the surface structure of the catalyst.

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Acknowledgments

The authors acknowledge the experimental assistance of G. Beuckert and the Stuff of BESSY. As well as the kind support of U. Kramm and I. Paloumpa. This work was supported by the German Research Foundation (DFG) within priority program SPP 1,459 (Schm 745/23-1) and BMBF project GeoEn II (03G0767B).

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Authors and Affiliations

  1. Applied Physics, Brandenburgische Technische Universität Cottbus, K.-Wachsmann-Allee 17, 03046, Cottbus, Germany

    M. Städter, K. Müller, F. Rachow, M. Richter & D. Schmeißer

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  1. M. Städter
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  2. K. Müller
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  3. F. Rachow
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  4. M. Richter
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  5. D. Schmeißer
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Correspondence to M. Städter.

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Städter, M., Müller, K., Rachow, F. et al. Ambient pressure thermal desorption spectroscopy (AP-TDS) of NiO/SiO2 catalysts. Environ Earth Sci 70, 3779–3784 (2013). https://doi.org/10.1007/s12665-013-2835-8

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  • DOI: https://doi.org/10.1007/s12665-013-2835-8

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