Low-temperature water-gas shift reaction on Auα-Fe2O3 catalyst

Andreeva, D.; Idakiev, V.; Tabakova, T.; Andreev, A.; Giovanoli, R.

doi:10.1016/0926-860x(95)00208-1

Cited by 186 publications

(117 citation statements)

References 10 publications

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“…Within the studied supports, usually metal oxides, there are reports about the use of MnOx [44], Fe2O3 [45], and Co2O3 [46], among others. Their intrinsic ability for the CO oxidation is due to some oxygen species that are especially activated through electronic transfer between them and the metallic cations, allowing a successful activation of the CO and O2 molecules for CO2 production.…”

Section: Introductionmentioning

confidence: 99%

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

et al. 2016

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Abstract:In this comprehensive review, the main aspects of using Au/CeO 2 catalysts in oxidation reactions are considered. The influence of the preparation methods and synthetic parameters, as well as the characteristics of the ceria support (presence of doping cations, oxygen vacancies concentration, surface area, redox properties, etc.) in the dispersion and chemical state of gold are revised. The proposed review provides a detailed analysis of the literature data concerning the state of the art and the applications of gold-ceria systems in oxidation reactions.

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Section: Introductionmentioning

confidence: 99%

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

et al. 2016

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“…A majority of the published work has focussed on precious metal catalysts. Ru/Fe 2 O 3 , Au/Fe 2 O 3 and Au/TiO 2 all were reported to have high CO conversion activity at 200 • C. [48][49][50] As found by Gorte et al and other groups, precious metals supported on ceria exhibit surprisingly high WGS activities. [20,22,29,51,52] Other groups investigated precious metals supported on zirconia.…”

Section: Catalyst Developmentsmentioning

confidence: 58%

Catalyst development for water–gas shift

Ladebeck¹,

Wagner²

2010

Handbook of Fuel Cells

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In the industrial production of hydrogen and of synthesis gas the water gas shift reaction represents an essential step for the overall process efficiency of the process by increasing the hydrogen yield and by adjusting the desired ratio of hydrogen and carbon monoxide for a subsequent synthesis step. In addition to that in fuel cell technology it is absolutely necessary to decrease the CO content of the fuel hydrogen due to the limited CO tolerance of present day fuel cell anodes. To be successful applying water gas shift catalysts in hydrogen production for fuel cells especially in automotive systems some major obstacles of the commercial Cu/Zn/Al catalyst systems must be overcome. Major new demands are reduction of volume and weight by two to three orders of magnitude, oxidation resistance and improved tolerance for steam condensation and poisons, here mainly sulfur present in gas feedstock and in gasoline. Precious metal catalyst systems on rare earth metal oxides are most promising and could fulfill the requirements in nonstationary applications were conventional catalysts are not applicable.

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“…In the initial publications on WGSR over supported gold catalysts, the focus was more on catalytic activity than on stability. [41][42][43][44] In recent years, more and more attention has been paid to the stability of gold catalysts in WGSR and their deactivation mechanisms. Osuwan and co-workers compared the catalytic performance of Pt/CeO 2 , Au/CeO 2 , and Au/Fe 2 O 3 in WGSR.…”

Section: Catalyst Stability and Deactivationmentioning

confidence: 99%

Water–gas shift on gold catalysts: catalyst systems and fundamental studies

Tao¹,

Ma²

2013

Phys. Chem. Chem. Phys.

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Since the pioneering finding by Haruta et al. that small gold nanoparticles on reducible supports can be highly active for low-temperature CO oxidation, the synthesis, characterization, and application of supported gold catalysts have attracted much attention. The water-gas shift reaction (WGSR: CO + H 2 O = CO 2 + H 2 ) is important for removing CO and upgrading the purity of H 2 for fuel cell applications, ammonia synthesis, and selective hydrogenation processes. In recent years, much attention has been paid to exploration the possibility of using supported gold nanocatalysts for WGSR and understanding the fundamental aspects related to catalyst deactivation mechanisms, nature of active sites, and reaction mechanisms. Here we summarize recent advances in the development of supported gold catalysts for this reaction and fundamental insights that can be gained, and furnish our assessment on the status of research progress.

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Low-temperature water-gas shift reaction on Auα-Fe2O3 catalyst

Cited by 186 publications

References 10 publications

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

Catalyst development for water–gas shift

Water–gas shift on gold catalysts: catalyst systems and fundamental studies

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