Carbon support hydrogenation in Pd/C catalysts during reductive thermal treatment

Abstract

The resistance of the Pd/C samples towards hydrogenation of the carbon support was studied in the temperature-programmed and isothermal regimes. Carbonaceous graphite-like material Sibunit was used as a carbon support. Pristine Sibunit was additionally graphitized via high temperature treatment (1900 °C) in an inert atmosphere. Both initial and graphitized supports were subjected to oxidative treatment in order to increase the amount of surface functional oxygen-containing groups. Palladium (1 wt%) was supported using an aqueous solution of H₂PdCl₄. All the samples were characterized by a low-temperature adsorption of nitrogen, transmission electron microscopy, and Raman spectroscopy. The graphitization procedure was found to decrease significantly the specific surface area of the support, while the oxidative treatment affects this parameter negligibly. Testing the Pd-containing samples in a hydrogen flow revealed the following order in accordance with amount of methane released: Pd/iSib » Pd/iSib-ox > Pd/gSib > Pd/gSib-ox.

Original language	English
Pages (from-to)	17656-17663
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	43
Issue number	37
DOIs	https://doi.org/10.1016/j.ijhydene.2018.07.182
Publication status	Published - 13 Sep 2018

Keywords

Carbonaceous support sibunit
Methanation
Palladium catalysts
Reductive conditions
Thermal stability

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

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10.1016/j.ijhydene.2018.07.182

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Iost, K. N., Borisov, V. A., Temerev, V. L., Surovikin, Y. V., Pavluchenko, P. E., Trenikhin, M. V., Arbuzov, A. B., Shlyapin, D. A., Tsyrulnikov, P. G., & Vedyagin, A. A. (2018). Carbon support hydrogenation in Pd/C catalysts during reductive thermal treatment. International Journal of Hydrogen Energy, 43(37), 17656-17663. https://doi.org/10.1016/j.ijhydene.2018.07.182

Carbon support hydrogenation in Pd/C catalysts during reductive thermal treatment. / Iost, Kristina N.; Borisov, Vadim A.; Temerev, Victor L.; Surovikin, Yury V.; Pavluchenko, Polina E.; Trenikhin, Mikhail V.; Arbuzov, Aleksey B.; Shlyapin, Dmitry A.; Tsyrulnikov, Pavel G.; Vedyagin, Aleksey A.

In: International Journal of Hydrogen Energy, Vol. 43, No. 37, 13.09.2018, p. 17656-17663.

Research output: Contribution to journal › Article › peer-review

Iost, Kristina N. ; Borisov, Vadim A. ; Temerev, Victor L. ; Surovikin, Yury V. ; Pavluchenko, Polina E. ; Trenikhin, Mikhail V. ; Arbuzov, Aleksey B. ; Shlyapin, Dmitry A. ; Tsyrulnikov, Pavel G. ; Vedyagin, Aleksey A. / Carbon support hydrogenation in Pd/C catalysts during reductive thermal treatment. In: International Journal of Hydrogen Energy. 2018 ; Vol. 43, No. 37. pp. 17656-17663.

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abstract = "The resistance of the Pd/C samples towards hydrogenation of the carbon support was studied in the temperature-programmed and isothermal regimes. Carbonaceous graphite-like material Sibunit was used as a carbon support. Pristine Sibunit was additionally graphitized via high temperature treatment (1900 °C) in an inert atmosphere. Both initial and graphitized supports were subjected to oxidative treatment in order to increase the amount of surface functional oxygen-containing groups. Palladium (1 wt%) was supported using an aqueous solution of H2PdCl4. All the samples were characterized by a low-temperature adsorption of nitrogen, transmission electron microscopy, and Raman spectroscopy. The graphitization procedure was found to decrease significantly the specific surface area of the support, while the oxidative treatment affects this parameter negligibly. Testing the Pd-containing samples in a hydrogen flow revealed the following order in accordance with amount of methane released: Pd/iSib » Pd/iSib-ox > Pd/gSib > Pd/gSib-ox.",

keywords = "Carbonaceous support sibunit, Methanation, Palladium catalysts, Reductive conditions, Thermal stability",

author = "Iost, {Kristina N.} and Borisov, {Vadim A.} and Temerev, {Victor L.} and Surovikin, {Yury V.} and Pavluchenko, {Polina E.} and Trenikhin, {Mikhail V.} and Arbuzov, {Aleksey B.} and Shlyapin, {Dmitry A.} and Tsyrulnikov, {Pavel G.} and Vedyagin, {Aleksey A.}",

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AU - Trenikhin, Mikhail V.

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AU - Tsyrulnikov, Pavel G.

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