Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts

C Diagne, Hicham Idriss, A Kiennemann

Research output: Contribution to journalArticle

239 Citations (Scopus)

Abstract

Reforming of ethanol in excess of water (1-8 molar ratio) has been investigated on Rh/CeO2, Rh/ZrO2 and Rh/CeO2-ZrO2 (Ce/Zr = 4, 2 and 1). Catalysts characterization was conducted by X-ray diffraction, BET surface area measurements, CO2 adsorption, and temperature programmed reduction (TPR). At 400-500 degreesC all catalysts showed high activity and selectivity towards hydrogen production (between 5 and 5.7 mol of H-2 per mol of ethanol inlet) despite the considerable textural differences of the oxides (fluorite, monoclinic and tetragonal). The large variations of Rh dispersion (as monitored by TPR) between all catalysts had a small effect on H-2 production. Although it appears that the reaction is not sensitive to either the oxide or the metal structure Rh/CeO2 (the most basic catalyst investigated) was the least reactive. (C) 2002 Published by Elsevier Science B.V.

Original languageEnglish
Pages (from-to)565-571
Number of pages7
JournalCatalysis Communications
Volume3
Issue number12
Publication statusPublished - Dec 2002

Keywords

  • CERIA
  • OXIDATION
  • SURFACE
  • OXIDES

Cite this

Diagne, C., Idriss, H., & Kiennemann, A. (2002). Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts. Catalysis Communications, 3(12), 565-571.

Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts. / Diagne, C ; Idriss, Hicham; Kiennemann, A .

In: Catalysis Communications, Vol. 3, No. 12, 12.2002, p. 565-571.

Research output: Contribution to journalArticle

Diagne, C, Idriss, H & Kiennemann, A 2002, 'Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts', Catalysis Communications, vol. 3, no. 12, pp. 565-571.
Diagne, C ; Idriss, Hicham ; Kiennemann, A . / Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts. In: Catalysis Communications. 2002 ; Vol. 3, No. 12. pp. 565-571.
@article{b63de335abc645538a40fbf95b68569b,
title = "Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts",
abstract = "Reforming of ethanol in excess of water (1-8 molar ratio) has been investigated on Rh/CeO2, Rh/ZrO2 and Rh/CeO2-ZrO2 (Ce/Zr = 4, 2 and 1). Catalysts characterization was conducted by X-ray diffraction, BET surface area measurements, CO2 adsorption, and temperature programmed reduction (TPR). At 400-500 degreesC all catalysts showed high activity and selectivity towards hydrogen production (between 5 and 5.7 mol of H-2 per mol of ethanol inlet) despite the considerable textural differences of the oxides (fluorite, monoclinic and tetragonal). The large variations of Rh dispersion (as monitored by TPR) between all catalysts had a small effect on H-2 production. Although it appears that the reaction is not sensitive to either the oxide or the metal structure Rh/CeO2 (the most basic catalyst investigated) was the least reactive. (C) 2002 Published by Elsevier Science B.V.",
keywords = "CERIA, OXIDATION, SURFACE, OXIDES",
author = "C Diagne and Hicham Idriss and A Kiennemann",
year = "2002",
month = "12",
language = "English",
volume = "3",
pages = "565--571",
journal = "Catalysis Communications",
issn = "1566-7367",
publisher = "Elsevier",
number = "12",

}

TY - JOUR

T1 - Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts

AU - Diagne, C

AU - Idriss, Hicham

AU - Kiennemann, A

PY - 2002/12

Y1 - 2002/12

N2 - Reforming of ethanol in excess of water (1-8 molar ratio) has been investigated on Rh/CeO2, Rh/ZrO2 and Rh/CeO2-ZrO2 (Ce/Zr = 4, 2 and 1). Catalysts characterization was conducted by X-ray diffraction, BET surface area measurements, CO2 adsorption, and temperature programmed reduction (TPR). At 400-500 degreesC all catalysts showed high activity and selectivity towards hydrogen production (between 5 and 5.7 mol of H-2 per mol of ethanol inlet) despite the considerable textural differences of the oxides (fluorite, monoclinic and tetragonal). The large variations of Rh dispersion (as monitored by TPR) between all catalysts had a small effect on H-2 production. Although it appears that the reaction is not sensitive to either the oxide or the metal structure Rh/CeO2 (the most basic catalyst investigated) was the least reactive. (C) 2002 Published by Elsevier Science B.V.

AB - Reforming of ethanol in excess of water (1-8 molar ratio) has been investigated on Rh/CeO2, Rh/ZrO2 and Rh/CeO2-ZrO2 (Ce/Zr = 4, 2 and 1). Catalysts characterization was conducted by X-ray diffraction, BET surface area measurements, CO2 adsorption, and temperature programmed reduction (TPR). At 400-500 degreesC all catalysts showed high activity and selectivity towards hydrogen production (between 5 and 5.7 mol of H-2 per mol of ethanol inlet) despite the considerable textural differences of the oxides (fluorite, monoclinic and tetragonal). The large variations of Rh dispersion (as monitored by TPR) between all catalysts had a small effect on H-2 production. Although it appears that the reaction is not sensitive to either the oxide or the metal structure Rh/CeO2 (the most basic catalyst investigated) was the least reactive. (C) 2002 Published by Elsevier Science B.V.

KW - CERIA

KW - OXIDATION

KW - SURFACE

KW - OXIDES

M3 - Article

VL - 3

SP - 565

EP - 571

JO - Catalysis Communications

JF - Catalysis Communications

SN - 1566-7367

IS - 12

ER -