Monolithic structures as alternatives to particulate catalysts for the reforming of hydrocarbons for hydrogen generation

Giroux, Thomas; Hwang, S.; Liu, Ye; Ruettinger, Wolfgang; Shore, Lawrence

doi:10.1016/j.apcatb.2004.07.013

Cited by 105 publications

(70 citation statements)

References 22 publications

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“…The latter involves liquid water condensation on the catalysts' porous structure, eventually deactivating the system. Despite the fact that this kind of test seems essential for practical reasons, they are not yet extended enough and few reports can be found in the literature considering these situations [192][193][194][195]. In a recent paper, multicomponent Au/CeO 2 -CuO/Al 2 O 3 catalysts were submitted to a series of start/stop cycles, and its behavior was compared to that presented by an Au/CuO/Al 2 O 3 catalyst ( Figure 11A) [144].…”

Section: Wgsmentioning

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: Wgsmentioning

confidence: 99%

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

et al. 2016

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“…Indeed, all the reduction processes are shifted towards lower temperatures typically around 190°C. In fact, the presence of gold is often reported to facilitate the H species mobility and also to weaken the CueO bond due to the electronic transfer between the oxide and the noble metal resulting in an overall improved reducibility [6,24,25]. Gold also helps HTCu3 to get closer to the behavior exhibited by HTCu1 and HTCu2.…”

Section: Redox Properties: H 2 -Tprmentioning

confidence: 98%

Multicomponent Au/Cu-ZnO-Al2O3 catalysts: Robust materials for clean hydrogen production

Santos

Reina

Ivanov

et al. 2018

Applied Catalysis A: General

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Clean hydrogen production via WGS is a key step in the development of hydrogen fuel processors. Herein, we have designed a new family of highly effective catalysts for low-temperature WGS reaction based on gold modified copper-zinc mixed oxides. Their performance was controlled by catalysts' composition and the Au-Cu synergy. The utilization of hydrotalcite precursors leads to an optimal microstructure that ensures excellent Au and Cu dispersion and favors their strong interaction. From the application perspective these materials succeed to overcome the major drawback of the commercial WGS catalysts: resistance towards start/stop operations, a mandatory requisite for H 2 -powered mobile devices.

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“…[12,13] Such catalysts can provide some suitable order flow channels according to reaction type and can even be made into monolithic catalytic reactors with honeycomb structures.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Pd‐Based Metal Monolithic Catalysts and a Study of Their Performance in the Catalytic Combustion of Methane

Yin¹,

Ji²,

Wu³

et al. 2008

ChemSusChem

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A series of Pd/SBA-15/Al2O3/FeCrAl and Pd/5 wt% Ce(1-x)Zr(x)O2/SBA-15/Al2O3/FeCrAl (x = 0-1) metal monolithic catalysts were prepared and characterized by various techniques. The catalytic activity and the stability of the catalysts for methane combustion were evaluated. All the catalysts retain the SBA-15 mesoporous structure, with PdO being confined in its channels. The results show that the addition of Ce(1-x)Zr(x)O2 as promoters can improve the activity and stability of the catalysts. The stabilities of the metal monolithic catalysts are much better than those of Pd/ SBA-15 particle catalysts. The catalyst with ZrO2 as promoter exhibits the best activity and stability (T90= 395 degrees C), and the conversion of methane remains constant during the 700 h test.

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Monolithic structures as alternatives to particulate catalysts for the reforming of hydrocarbons for hydrogen generation

Cited by 105 publications

References 22 publications

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

Au/CeO2 Catalysts: Structure and CO Oxidation Activity

Multicomponent Au/Cu-ZnO-Al2O3 catalysts: Robust materials for clean hydrogen production

Preparation of Pd‐Based Metal Monolithic Catalysts and a Study of Their Performance in the Catalytic Combustion of Methane

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