Photocatalytic Reforming of Sucrose and Dextrose for Hydrogen Production on Pd/TiO2

Charles Beasley, Muthu Kumaran Gnanamani, Dali Qian, Shelley D. Hopps

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Photocatalytic reforming of sucrose and dextrose was performed on TiO2 supported Pd (0.25, 0.5, 1.0, 1.5, and 2.0 wt%) catalysts under UV light irradiation. Hydrogen production increases with increasing the sucrose concentration. Semiconductor TiO2 has shown benefit from palladium additions up to about 0.5–1.0 wt%; however, the further metal increase has no benefits. Kinetics study reveals that the apparent reaction rate for hydrogen evolution follows the Langmuir-Hinshelwood (LH) mechanism. The equilibrium constant (K) determined was 1.078 for 1 %Pd/TiO2, while 2 %Pd/TiO2 exhibited 0.122, which is an order of magnitude less than the former catalyst. Hydrogen yield from dextrose is higher than sucrose under similar reaction conditions. Furthermore, the catalyst pretreated by sodium borohydride displayed higher activity for dextrose reforming than untreated, implying that metallic Pd enhanced hydrogen production.

Original languageEnglish
Pages (from-to)6512-6524
Number of pages13
JournalChemistrySelect
Volume6
Issue number25
DOIs
StatePublished - Jul 7 2021

Bibliographical note

Funding Information:
. The authors acknowledge the financial assistance received from the Commonwealth of Kentucky

Publisher Copyright:
© 2021 Wiley-VCH GmbH.

Keywords

  • dextrose
  • hydrogen
  • PdTiO
  • photocatalysis
  • sucrose

ASJC Scopus subject areas

  • Chemistry (all)

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