Higher Hydrocarbons Synthesis from CO2 Hydrogenation Over K- and La-Promoted Fe–Cu/TiO2 Catalysts

Nuttakorn Boreriboon, Xiao Jiang, Chunshan Song, Pattarapan Prasassarakich

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Abstract: Developing selective and active catalyst is critical for CO2 hydrogenation to higher hydrocarbons especially C5+ products. The present work reports on the significant promoting effects of K and La addition to Fe–Cu/TiO2 catalyst on higher hydrocarbon production from CO2 hydrogenation. The incorporation of both K and La promoters can improve both CO2 hydrogenation activity and selectivity to higher hydrocarbons of Fe-based catalyst. Characterization by temperature-programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) showed that the presence of K promoter significantly decreased the adsorption of H2, which suppressed the CH4 formation. On the other hand, La addition can promote the moderately adsorbed CO2 species (mainly monodentate carbonate species), which leads to the enhanced C5–C7 selectivity. The simultaneous use of promoters La and K can tailor the H and C coverage on the catalyst surface, which plays an important role in altering product distribution in CO2 hydrogenation. Graphical Abstract: [Figure not available: see fulltext.].

Original languageEnglish (US)
Pages (from-to)1551-1562
Number of pages12
JournalTopics in Catalysis
Volume61
Issue number15-17
DOIs
StatePublished - Oct 1 2018

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Hydrocarbons
Hydrogenation
Catalysts
Catalyst selectivity
Carbonates
Temperature programmed desorption
Fourier transform infrared spectroscopy
Adsorption

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Boreriboon, Nuttakorn ; Jiang, Xiao ; Song, Chunshan ; Prasassarakich, Pattarapan. / Higher Hydrocarbons Synthesis from CO2 Hydrogenation Over K- and La-Promoted Fe–Cu/TiO2 Catalysts. In: Topics in Catalysis. 2018 ; Vol. 61, No. 15-17. pp. 1551-1562.
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Higher Hydrocarbons Synthesis from CO2 Hydrogenation Over K- and La-Promoted Fe–Cu/TiO2 Catalysts. / Boreriboon, Nuttakorn; Jiang, Xiao; Song, Chunshan; Prasassarakich, Pattarapan.

In: Topics in Catalysis, Vol. 61, No. 15-17, 01.10.2018, p. 1551-1562.

Research output: Contribution to journalArticle

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T1 - Higher Hydrocarbons Synthesis from CO2 Hydrogenation Over K- and La-Promoted Fe–Cu/TiO2 Catalysts

AU - Boreriboon, Nuttakorn

AU - Jiang, Xiao

AU - Song, Chunshan

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N2 - Abstract: Developing selective and active catalyst is critical for CO2 hydrogenation to higher hydrocarbons especially C5+ products. The present work reports on the significant promoting effects of K and La addition to Fe–Cu/TiO2 catalyst on higher hydrocarbon production from CO2 hydrogenation. The incorporation of both K and La promoters can improve both CO2 hydrogenation activity and selectivity to higher hydrocarbons of Fe-based catalyst. Characterization by temperature-programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) showed that the presence of K promoter significantly decreased the adsorption of H2, which suppressed the CH4 formation. On the other hand, La addition can promote the moderately adsorbed CO2 species (mainly monodentate carbonate species), which leads to the enhanced C5–C7 selectivity. The simultaneous use of promoters La and K can tailor the H and C coverage on the catalyst surface, which plays an important role in altering product distribution in CO2 hydrogenation. Graphical Abstract: [Figure not available: see fulltext.].

AB - Abstract: Developing selective and active catalyst is critical for CO2 hydrogenation to higher hydrocarbons especially C5+ products. The present work reports on the significant promoting effects of K and La addition to Fe–Cu/TiO2 catalyst on higher hydrocarbon production from CO2 hydrogenation. The incorporation of both K and La promoters can improve both CO2 hydrogenation activity and selectivity to higher hydrocarbons of Fe-based catalyst. Characterization by temperature-programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) showed that the presence of K promoter significantly decreased the adsorption of H2, which suppressed the CH4 formation. On the other hand, La addition can promote the moderately adsorbed CO2 species (mainly monodentate carbonate species), which leads to the enhanced C5–C7 selectivity. The simultaneous use of promoters La and K can tailor the H and C coverage on the catalyst surface, which plays an important role in altering product distribution in CO2 hydrogenation. Graphical Abstract: [Figure not available: see fulltext.].

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