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  Surface titration of supported Ni catalysts by O2-pulse thermal analysis

Millet, M.-M., Frei, E., Algara-Siller, G., Schlögl, R., & Tarasov, A. (2018). Surface titration of supported Ni catalysts by O2-pulse thermal analysis. Applied Catalysis A, 566, 155-163. doi:10.1016/j.apcata.2018.08.023.

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 Creators:
Millet, Marie-Mathilde1, Author           
Frei, Elias1, Author           
Algara-Siller, Gerardo1, Author                 
Schlögl, Robert1, Author           
Tarasov, Andrey1, Author                 
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1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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 Abstract: A new method for determining the Ni0 metal surface area of MgO supported catalysts is proposed. Different series of MgO supported Ni catalysts were prepared and titrated by chemical adsorption of oxygen inside an STA-MS setup. Simultaneous recording of the mass gain upon oxidation, the enthalpy of formation of the oxide and the evolved gas allowed a precise quantification of the metallic Ni surface area. In addition, any uncertainties linked with the complex Ni oxide stoichiometry could be ruled out. A comparison of the newly developed oxygen pulse method with already established techniques using H2 or N2O confirmed the applicability of the method and further revealed its surface sensitivity and accuracy with respect to MgO supported Ni catalysts.

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Language(s): eng - English
 Dates: 2018-08-222018-06-132018-08-232018-08-262018-09-25
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.apcata.2018.08.023
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Title: Applied Catalysis A
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 9 Volume / Issue: 566 Sequence Number: - Start / End Page: 155 - 163 Identifier: ISSN: 0926-860X
CoNE: https://pure.mpg.de/cone/journals/resource/954925567761_1