Selective oxidation of carbon monoxide over CuO–CeO2 catalyst: Effect of hydrothermal treatment

Jung, Chang Ryul; Kundu, Aritra; Nam, Suk Woo; Lee, Ho In

doi:10.1016/j.apcatb.2008.04.024

Cited by 60 publications

(32 citation statements)

References 31 publications

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“…Impregnating solutions were prepared by dissolution of H 2 PtCl 6 Á6H 2 O (37%, Kojima Chemical Co.) in deionized water, by dissolution of PdCl 2 (99%, Kojima Chemical Co.) in concentrated hydrochloric acid, and by dissolution of Fe(NO 3 ) 3 Á9H 2 O (99%, Katayama Chemical Co.) in deionized water. All the catalysts were prepared by incipient wetness [6,7]. The amount of precious metal was fixed to 1 wt% of the total catalyst.…”

Section: Catalyst Preparationmentioning

confidence: 99%

The role of doped Fe on the activity of alumina-supported Pt and Pd diesel exhaust catalysts

et al. 2011

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Supported Pt and Pd are most commonly used for oxidation catalysts. They have similar and different characteristics for deactivation factors. The catalytic activity of Pt and Pd catalysts supported on c-Al 2 O 3 was studied in the presence and absence of H 2 O and SO 2 during CO oxidation under simulated conditions of diesel exhaust gas. Without the addition of H 2 O and SO 2 to the feed gas, Pd/Al 2 O 3 had a superior catalytic activity compared to Pt/Al 2 O 3 . The addition of H 2 O to the feed gas strongly and negligibly affected the activity of Pd and Pt, respectively, while the addition of SO 2 to the feed gas had a strong poisoning effect on the catalytic activity of both Pt and Pd catalysts. Although being the most active, Pd catalysts exhibited a strong sensitivity to water and sulfur-containing compounds. Fe was added to the Pt and Pd catalysts to introduce sulfur resistance. The addition of Fe enhanced the activity of the catalysts by suppressing the phase transition of Al 2 O 3 to Al 2 (SO 4 ) 3 and by hindering metal sintering.

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Section: Catalyst Preparationmentioning

confidence: 99%

The role of doped Fe on the activity of alumina-supported Pt and Pd diesel exhaust catalysts

et al. 2011

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“…Hydrothermal synthesis at high temperature and high pressure using aqueous solutions and vapors reacting with solid materials is a well-known process in mineralogy and geology fields [1]. In particular, this synthesis method is suitable for the preparation of powder materials.…”

Section: Introductionmentioning

confidence: 99%

Structural and morphological transformations of Zn–Al layered double hydroxides through hydrothermal treatment

Sun

Zhou

Wang

et al. 2009

Applied Surface Science

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“…[2,4,[48][49][50] For example, Jung et al [4] synthesized CuOÀ CeO 2 catalysts via a hydrothermal method by varying the duration of hydrothermal treatment and the CuO loading. [2,4,[48][49][50] For example, Jung et al [4] synthesized CuOÀ CeO 2 catalysts via a hydrothermal method by varying the duration of hydrothermal treatment and the CuO loading.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] It is noteworthy that the distribution and storage problems of pure H 2 have limited its use as a fuel for PEMFCs and therefore, hydrogen reformate gas streams are considered as an alternative fuel source. [4] Steam reforming, partial oxidation or auto-thermal reforming of hydrocarbons in combination with water gas shift reactions (WGS) are the main ways of producing H 2 -rich gas. [5,6] The reformate gas contains approximately 0.5-1 vol.% CO, which can poison the Pt electrocatalyst that is used for the hydrogen oxidation reaction at the anode of PEMFC.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Hydrothermal Parameters on the Physicochemical Characteristics of Cu−Ce Oxide Nanostructures

Kappis

2019

ChemCatChem

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A series of highly active and selective CuCeO x catalysts was prepared via appropriate tuning of the parameters (concentration, temperature) of a citrates-hydrothermal method. The obtained catalysts were characterized by various physicochemical techniques such as (in-situ) X-ray diffraction (XRD), N 2 adsorption-desorption, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), while preferential oxidation of CO (CO-PROX) in H 2 -rich stream was used as probe reaction. Suitable modification of the hydrothermal parameters resulted in catalysts with remarkable performance in CO-PROX reaction, which was strongly dependent on the concentration of oxygen vacancies and reduced copper species.

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Selective oxidation of carbon monoxide over CuO–CeO2 catalyst: Effect of hydrothermal treatment

Cited by 60 publications

References 31 publications

The role of doped Fe on the activity of alumina-supported Pt and Pd diesel exhaust catalysts

The role of doped Fe on the activity of alumina-supported Pt and Pd diesel exhaust catalysts

Structural and morphological transformations of Zn–Al layered double hydroxides through hydrothermal treatment

Influence of the Hydrothermal Parameters on the Physicochemical Characteristics of Cu−Ce Oxide Nanostructures

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