Catalytic production of hydrogen through aqueous-phase reforming over platinum/ordered mesoporous carbon catalysts

Tae Wan Kim, Ho Dong Kim, Kwang Eun Jeong, Ho Jeong Chae, Soon Yong Jeong, Chang Ha Lee, Chul Ung Kim

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

A series of platinum catalysts supported on ordered mesoporous carbon (CMK-3) with different Pt loadings from 1 to 10 wt% have been prepared, and their catalytic activities for hydrogen production via aqueous-phase reforming (APR) of ethylene glycol (EG) have been investigated. Characterization by X-ray powder diffraction, transmission electron microscopy, N 2 sorption, and CO chemisorption techniques reveal that an ordered mesostructure, high surface area, large pore volume, and uniform mesopore size in the mesopores are maintained with a high dispersion of platinum nanoparticles after APR of EG at 250 °C under 45 atm over 24 h. These results show that the structure of the ordered mesoporous carbon support exhibits outstanding hydrothermal stability in APR under high pressure and temperature. The APR activities of Pt/CMK-3 catalysts as a function of Pt loading were increased up to 7 wt% Pt loading. The optimum Pt loading was found to be 7 wt%, with a 37.8 cm 3 g cat -1 min -1 hydrogen production rate. The results presented in this work suggest that Pt/CMK-3 is a very efficient catalyst for producing hydrogen in the APR reaction due to good hydrothermal stability with an open mesoporous structure. The findings presented here are expected to provide new opportunities for rational design of heterogeneous carbonaceous catalysts for aqueous-phase reactions under severe reaction conditions.

Original languageEnglish
Pages (from-to)1718-1728
Number of pages11
JournalGreen Chemistry
Volume13
Issue number7
DOIs
Publication statusPublished - 2011 Jul 1

Fingerprint

Reforming reactions
Platinum
platinum
Hydrogen
Carbon
catalyst
hydrogen
Catalysts
carbon
Ethylene Glycol
ethylene
Hydrogen production
Ethylene glycol
transmission electron microscopy
Carbon Monoxide
Chemisorption
Catalyst supports
sorption
surface area
X ray powder diffraction

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

Cite this

Kim, Tae Wan ; Kim, Ho Dong ; Jeong, Kwang Eun ; Chae, Ho Jeong ; Jeong, Soon Yong ; Lee, Chang Ha ; Kim, Chul Ung. / Catalytic production of hydrogen through aqueous-phase reforming over platinum/ordered mesoporous carbon catalysts. In: Green Chemistry. 2011 ; Vol. 13, No. 7. pp. 1718-1728.
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abstract = "A series of platinum catalysts supported on ordered mesoporous carbon (CMK-3) with different Pt loadings from 1 to 10 wt{\%} have been prepared, and their catalytic activities for hydrogen production via aqueous-phase reforming (APR) of ethylene glycol (EG) have been investigated. Characterization by X-ray powder diffraction, transmission electron microscopy, N 2 sorption, and CO chemisorption techniques reveal that an ordered mesostructure, high surface area, large pore volume, and uniform mesopore size in the mesopores are maintained with a high dispersion of platinum nanoparticles after APR of EG at 250 °C under 45 atm over 24 h. These results show that the structure of the ordered mesoporous carbon support exhibits outstanding hydrothermal stability in APR under high pressure and temperature. The APR activities of Pt/CMK-3 catalysts as a function of Pt loading were increased up to 7 wt{\%} Pt loading. The optimum Pt loading was found to be 7 wt{\%}, with a 37.8 cm 3 g cat -1 min -1 hydrogen production rate. The results presented in this work suggest that Pt/CMK-3 is a very efficient catalyst for producing hydrogen in the APR reaction due to good hydrothermal stability with an open mesoporous structure. The findings presented here are expected to provide new opportunities for rational design of heterogeneous carbonaceous catalysts for aqueous-phase reactions under severe reaction conditions.",
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Catalytic production of hydrogen through aqueous-phase reforming over platinum/ordered mesoporous carbon catalysts. / Kim, Tae Wan; Kim, Ho Dong; Jeong, Kwang Eun; Chae, Ho Jeong; Jeong, Soon Yong; Lee, Chang Ha; Kim, Chul Ung.

In: Green Chemistry, Vol. 13, No. 7, 01.07.2011, p. 1718-1728.

Research output: Contribution to journalArticle

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AU - Kim, Ho Dong

AU - Jeong, Kwang Eun

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AU - Lee, Chang Ha

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