Influence of oxychlorination treatments on the redox and oxygen storage and release properties of thermally aged Pd-Rh/CexZr1−xO2/Al2O3 model three-way catalysts

Daley, Robert Anthony; Christou, Stavroula Y.; Efstathiou, Angelos M.; Anderson, James A.

doi:10.1016/j.apcatb.2005.03.002

Cited by 59 publications

(43 citation statements)

References 39 publications

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“…175 As has been demonstrated already, the oxychlorinations were able to reverse the Pd sintering process of thermal treatments, resulting in higher Pd dispersions, along with the recovery of oxygen storage capacity of the support through stronger metal-ceria zirconia interactions.…”

mentioning

confidence: 60%

Metal Redispersion Strategies for Recycling of Supported Metal Catalysts: A Perspective

Morgan¹,

Goguet²,

Hardacre³

2015

ACS Catal.

182

152

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Catalyst deactivation is ultimately inevitable, and one of the processes known to cause deactivation is sintering of metal particles. Consequently, numerous methods to reverse the sintering process by re-dispersing metal nanoparticles have been developed. These methods are discussed in this perspective, and the reported mechanisms of re-dispersion are summarized. Additionally, the longer term practical use of such treatments, and the benefits this can bring, is briefly disclosed.

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mentioning

confidence: 60%

Metal Redispersion Strategies for Recycling of Supported Metal Catalysts: A Perspective

Morgan¹,

Goguet²,

Hardacre³

2015

ACS Catal.

182

152

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“…In a similar manner, oxygen can be stored under oxygen-rich conditions and released under oxygenlean conditions using CeO/ZrO 2 on alumina. Oxygen storage in fresh, thermally aged catalysts as well as catalysts treated by oxychlorination has been studied [56].…”

Section: Applicationsmentioning

confidence: 99%

Flame Hydrolysis

Kerner¹,

Rochnia²

2008

Handbook of Heterogeneous Catalysis

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“…The peak at ca. 31.6°is the (1 1 1) reflection of CeZr mixed oxide, while the peaks at 49.8 and 59.3°correspond to the (2 2 0) and (2 2 2) reflections, respectively [23]. The impregnation with Pd did not modify the diffractions peaks observed for the CeZr/Si support.…”

Section: Catalytic Activity Testmentioning

confidence: 93%

Chemical Characterization and Catalytic Activity of Pd-Supported Catalysts on Ce0.39Zr0.61O x /SiO2

et al. 2009

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The catalytic activity of Pd-supported catalysts over Ce 0.39 Zr 0.61 O x /SiO 2 was studied by using methane combustion reaction. UV-visible and TPR results showed the presence of large PdO particles. CO/Pd ratio decreased with the increase of metal load. The light-off temperatures indicated that high Pd loading favored the reaction. The reduction treatment decreased the activity suggesting loss of the active phase.

show abstract

Influence of oxychlorination treatments on the redox and oxygen storage and release properties of thermally aged Pd-Rh/CexZr1−xO2/Al2O3 model three-way catalysts

Cited by 59 publications

References 39 publications

Metal Redispersion Strategies for Recycling of Supported Metal Catalysts: A Perspective

Metal Redispersion Strategies for Recycling of Supported Metal Catalysts: A Perspective

Flame Hydrolysis

Chemical Characterization and Catalytic Activity of Pd-Supported Catalysts on Ce0.39Zr0.61O x /SiO2

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