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Pd-LaFeO3 Catalysts...
Pd-LaFeO3 Catalysts in Aqueous Ethanol : Pd Reduction, Leaching, and Structural Transformations in the Presence of a Base
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- Checchia, Stefano (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,European Synchrotron Radiation Facility
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- Mulligan, Christopher J. (författare)
- Imperial College London
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- Emerich, Hermann (författare)
- European Synchrotron Radiation Facility
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- Alxneit, Ivo (författare)
- Paul Scherrer Institute
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- Krumeich, Frank (författare)
- ETH Zürich
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- Di Michiel, Marco (författare)
- European Synchrotron Radiation Facility
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- Thompson, Paul B.J. (författare)
- European Synchrotron Radiation Facility
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- Hii, King Kuok Mimi (författare)
- Imperial College London
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- Ferri, Davide (författare)
- Paul Scherrer Institute
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- Newton, Mark A. (författare)
- ETH Zürich
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(creator_code:org_t)
- 2020-02-11
- 2020
- Engelska 12 s.
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Ingår i: ACS Catalysis. - : American Chemical Society (ACS). - 2155-5435. ; 10:6, s. 3933-3944
- Relaterad länk:
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http://dx.doi.org/10...
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https://www.dora.lib...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The reactive behavior of three catalysts based on Pd-loaded LaFeO3 was investigated in terms of the reducibility of Pd and its propensity to leaching into the liquid phase in flowing solutions prototypical of C-C coupling catalysis in a continuous flow reactor cell. In situ quick extended X-ray absorption fine structure spectroscopy showed that Pd remains stable and nonreducible in the flowing ethanol/water solvent mixture under heating to 353 K. However, ex situ transmission electron microscopy, high-energy X-ray diffraction, and fluorescence yield Fe K-edge X-ray absorption near-edge structure show that the addition of a significant amount of base (K2CO3, 0.1 M) results in the structural degradation of the perovskite support as well as the mobilization of Pd along the sample bed that is dependent on the structure and crystallite size of the perovskite. The results are discussed in terms of the use of perovskite-type oxides in various areas of research where they are placed in contact with liquid phases of variable temperature and elevated pH.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- basic condition
- leaching
- pair distribution function
- palladium catalysis
- Suzuki coupling
- X-ray absorption spectroscopy
- X-ray diffraction
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Till lärosätets databas
- Av författaren/redakt...
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Checchia, Stefan ...
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Mulligan, Christ ...
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Emerich, Hermann
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Alxneit, Ivo
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Krumeich, Frank
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Di Michiel, Marc ...
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visa fler...
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Thompson, Paul B ...
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Hii, King Kuok M ...
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Ferri, Davide
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Newton, Mark A.
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Oorganisk kemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
- Artiklar i publikationen
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ACS Catalysis
- Av lärosätet
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Lunds universitet