SciAct
Toggle navigation
  • EN
  • RU

Sections:

  • Articles
  • Books
  • Conference attendances
  • Conference theses
  • Patents

Formic Acid Decomposition over Palladium Based Catalysts Doped by Potassium Carbonate Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Conference 1st International Symposium on Catalytic Science and Technology in Sustainable Energy and Environment (EECAT)
08-10 Sep 2014 , Tianjin
Journal Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308
Output data Year: 2016, Volume: 259, Number: 2, Pages: 453-459 Pages count : 7 DOI: 10.1016/j.cattod.2015.04.008
Tags Buffer solution, Decomposition of formic acid, DRIFTS, Hydrogen production, K-doped Pd catalysts
Authors Jia Lijun 1,2 , Bulushev Dmitri A. 1,3,4 , Ross Julian R.H. 1
Affiliations
1 Chemical & Environmental Sciences Department, University of Limerick, Limerick, Ireland
2 Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
3 Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
4 Novosibirsk State University, Novosibirsk 630090, Russia

Funding (1)

1 Science Foundation Ireland 06/CP/E007

Abstract: The introduction of potassium carbonate into Pd/Al2O3, Pd/SiO2 and Pd/C catalysts promoted both the catalytic activities and the hydrogen selectivities for the vapor-phase formic acid decomposition, giving values of the turnover frequency (TOF) at 343 K that were 8–33 times higher than those for the undoped samples. The apparent activation energies over all the K-doped samples increased considerably, this showing that there is a difference in the reaction path between the doped and the undoped catalysts. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) has been used to gain an understanding of the nature of the species formed in the Pd/SiO2 catalysts during the reaction. This study showed that a considerable fraction of the HCOOH was condensed in the pores of the catalysts and that the introduction of potassium contributed to the formation of buffer-like solution. The existence of mobile formate ions present in the buffer solution and stabilized by K ions in a K-doped catalyst is an essential factor in the promotion of its activity.
Cite: Jia L. , Bulushev D.A. , Ross J.R.H.
Formic Acid Decomposition over Palladium Based Catalysts Doped by Potassium Carbonate
Catalysis Today. 2016. V.259. N2. P.453-459. DOI: 10.1016/j.cattod.2015.04.008 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Files: Full text from publisher
Dates:
Submitted: Nov 12, 2014
Accepted: Apr 6, 2015
Published online: May 2, 2015
Published print: Jan 1, 2016
Identifiers:
publication_identifier.wos_identifier_type WOS:000364863000028
publication_identifier.scopus_identifier_type 2-s2.0-84946482825
publication_identifier.rinz_identifier_type 24956234
publication_identifier.accession_number_identifier_type 2015:741589
publication_identifier.chemical_accession_number_identifier_type 163:571887
Altmetrics: