The Role of Support in Formic Acid Decomposition on Gold Catalysts

Vladimir Sobolev, Igor Asanov and Konstantin Koltunov
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Vladimir Sobolev: Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
Igor Asanov: Nikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, Russia
Konstantin Koltunov: Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia

Energies, 2019, vol. 12, issue 21, 1-8

Abstract: Formic acid (FA) can easily be decomposed, affording molecular hydrogen through a controllable catalytic process, thus attaining great importance as a convenient hydrogen carrier for hydrogen energetics. Supported gold nanoparticles are considered to be among the most promising catalysts for such applications. However, questions remain regarding the influence of the catalyst support on the reaction selectivity. In this study, we have examined the catalytic activity of typical gold catalysts, such as Au/TiO 2 , Au/SiO 2, and Au/Al 2 O 3 in decomposition of FA, and then compared it with the catalytic activity of corresponding supports. The performance of each catalyst and support was evaluated using a gas-flow packed-bed reactor. It is shown that the target reaction, FA → H 2 + CO 2 , is provided by the presence of gold nanoparticles, whereas the concurrent, undesirable pathway, such as FA → H 2 O + CO, results exclusively from the acid-base behavior of supports.

Keywords: hydrogen energetics; hydrogen carrier; formic acid dehydrogenation; supported gold catalysts (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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