Catalytic properties of the proton conductor materials: Sr3CaZr0.5Ta1.5O8.75, BaCe0.9Y0.1O2.95 and Ba3Ca1.18Nb1.82O8.73 or reverse water gas shift

John Thomas Sirr Irvine; HDAL Viana

doi:doi:10.1016/j.ssi.2007.02.029

Catalytic properties of the proton conductor materials: Sr₃CaZr_0.5Ta_1.5O_8.75, BaCe_0.9Y_0.1O_2.95 and Ba₃Ca_1.18Nb_1.82O_8.73 or reverse water gas shift

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Abstract

The proton conductors Sr3CaZr0.5Ta1.5O8.75 (SCZT), BaCe0.9Y0.1O2.95 (BCY10) and Ba3Ca1.18Nb1.82O8.73(BCN18) have been shown to be active heterogeneous catalysts for the reverse water gas shift (RWGS) reaction. Catalytic characterisation was conducted in a quartz fixed-bed reactor with a silica fritted disk and monitored by a gas chromatograph. X-ray diffraction and TGA+MS were used to characterise samples before and after catalytic tests. BCY10 reaches 45% CO2 conversion at 900 degrees C, 3% more than BCN18 (42% total conversion) at 900 degrees C. SCZT reaches 36% CO2 conversion at 900 degrees C, but has the lowest conversion onset temperature and activation energy of the materials studied. (c) 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	717-722
Number of pages	6
Journal	Solid State Ionics
Volume	178
DOIs	https://doi.org/doi:10.1016/j.ssi.2007.02.029
Publication status	Published - Apr 2007

Keywords

proton conductor
heterogenous catalysis
reverse water gas shift
RWGS REACTION
METALS
OXIDES

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doi:10.1016/j.ssi.2007.02.029

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title = "Catalytic properties of the proton conductor materials: Sr3CaZr0.5Ta1.5O8.75, BaCe0.9Y0.1O2.95 and Ba3Ca1.18Nb1.82O8.73 or reverse water gas shift",

abstract = "The proton conductors Sr3CaZr0.5Ta1.5O8.75 (SCZT), BaCe0.9Y0.1O2.95 (BCY10) and Ba3Ca1.18Nb1.82O8.73(BCN18) have been shown to be active heterogeneous catalysts for the reverse water gas shift (RWGS) reaction. Catalytic characterisation was conducted in a quartz fixed-bed reactor with a silica fritted disk and monitored by a gas chromatograph. X-ray diffraction and TGA+MS were used to characterise samples before and after catalytic tests. BCY10 reaches 45% CO2 conversion at 900 degrees C, 3% more than BCN18 (42% total conversion) at 900 degrees C. SCZT reaches 36% CO2 conversion at 900 degrees C, but has the lowest conversion onset temperature and activation energy of the materials studied. (c) 2007 Elsevier B.V. All rights reserved.",

keywords = "proton conductor, heterogenous catalysis, reverse water gas shift, RWGS REACTION, METALS, OXIDES",

author = "Irvine, {John Thomas Sirr} and HDAL Viana",

year = "2007",

month = apr,

doi = "doi:10.1016/j.ssi.2007.02.029",

language = "English",

volume = "178",

pages = "717--722",

journal = "Solid State Ionics",

issn = "0167-2738",

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T1 - Catalytic properties of the proton conductor materials: Sr3CaZr0.5Ta1.5O8.75, BaCe0.9Y0.1O2.95 and Ba3Ca1.18Nb1.82O8.73 or reverse water gas shift

AU - Irvine, John Thomas Sirr

AU - Viana, HDAL

PY - 2007/4

Y1 - 2007/4

N2 - The proton conductors Sr3CaZr0.5Ta1.5O8.75 (SCZT), BaCe0.9Y0.1O2.95 (BCY10) and Ba3Ca1.18Nb1.82O8.73(BCN18) have been shown to be active heterogeneous catalysts for the reverse water gas shift (RWGS) reaction. Catalytic characterisation was conducted in a quartz fixed-bed reactor with a silica fritted disk and monitored by a gas chromatograph. X-ray diffraction and TGA+MS were used to characterise samples before and after catalytic tests. BCY10 reaches 45% CO2 conversion at 900 degrees C, 3% more than BCN18 (42% total conversion) at 900 degrees C. SCZT reaches 36% CO2 conversion at 900 degrees C, but has the lowest conversion onset temperature and activation energy of the materials studied. (c) 2007 Elsevier B.V. All rights reserved.

AB - The proton conductors Sr3CaZr0.5Ta1.5O8.75 (SCZT), BaCe0.9Y0.1O2.95 (BCY10) and Ba3Ca1.18Nb1.82O8.73(BCN18) have been shown to be active heterogeneous catalysts for the reverse water gas shift (RWGS) reaction. Catalytic characterisation was conducted in a quartz fixed-bed reactor with a silica fritted disk and monitored by a gas chromatograph. X-ray diffraction and TGA+MS were used to characterise samples before and after catalytic tests. BCY10 reaches 45% CO2 conversion at 900 degrees C, 3% more than BCN18 (42% total conversion) at 900 degrees C. SCZT reaches 36% CO2 conversion at 900 degrees C, but has the lowest conversion onset temperature and activation energy of the materials studied. (c) 2007 Elsevier B.V. All rights reserved.

KW - proton conductor

KW - heterogenous catalysis

KW - reverse water gas shift

KW - RWGS REACTION

KW - METALS

KW - OXIDES

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U2 - doi:10.1016/j.ssi.2007.02.029

DO - doi:10.1016/j.ssi.2007.02.029

M3 - Article

SN - 0167-2738

VL - 178

SP - 717

EP - 722

JO - Solid State Ionics

JF - Solid State Ionics

ER -

Catalytic properties of the proton conductor materials: Sr₃CaZr_0.5Ta_1.5O_8.75, BaCe_0.9Y_0.1O_2.95 and Ba₃Ca_1.18Nb_1.82O_8.73 or reverse water gas shift

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Keywords

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