Particle Size Effect on CH4 Oxidation Over Noble Metals: Comparison of Pt and Pd Catalysts Full article
| Conference |
9th International Congress on Catalysis and Automotive Pollution Control 29-31 Aug 2012 , Brussels |
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| Journal |
Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028 |
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| Output data | Year: 2013, Volume: 56, Number: 1-8, Pages: 306-310 Pages count : 5 DOI: 10.1007/s11244-013-9971-y | ||||
| Tags | In situ XPS, Methane oxidation, Noble metals, Palladium, Particle size effect, Platinum/alumina, Turnover frequency (TOF) | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | V.45.3.2. |
Abstract:
Intrinsic catalytic activities (TOF values) in CH4 complete oxidation under lean conditions were estimated as a function of Pt and Pd particle sizes (dm) for two series of Pt/Al2O3 and Pd/Al2O3 catalysts. Comparison of TOF ~ f(dm) relationships revealed significant difference between Pt and Pd catalysts. For Pt catalyst TOF showed tendency to increase by 2–3 times with increasing particle size from 1 to ca 3 nm and remained constant, when Pt particles became larger than 3 nm. On the other hand, for Pd catalyst TOF increased almost linearly when particle size grew from 1 to 20 nm. These different tendencies were attributed to the different mechanisms of CH4 oxidation over Pt and Pd catalysts: Langmuir–Hinshelwood and Mars-Van Krevelen respectively.
Cite:
Stakheev A.Y.
, Batkin A.M.
, Telegina N.S.
, Bragina G.O.
, Zaikovsky V.I.
, Prosvirin I.P.
, Khudorozhkov A.K.
, Bukhtiyarov V.I.
Particle Size Effect on CH4 Oxidation Over Noble Metals: Comparison of Pt and Pd Catalysts
Topics in Catalysis. 2013. V.56. N1-8. P.306-310. DOI: 10.1007/s11244-013-9971-y WOS Scopus РИНЦ ANCAN OpenAlex
Particle Size Effect on CH4 Oxidation Over Noble Metals: Comparison of Pt and Pd Catalysts
Topics in Catalysis. 2013. V.56. N1-8. P.306-310. DOI: 10.1007/s11244-013-9971-y WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Published online: | Feb 26, 2013 |
| Published print: | May 1, 2013 |
Identifiers:
| Web of science: | WOS:000318213800054 |
| Scopus: | 2-s2.0-84877982174 |
| Elibrary: | 20429561 |
| Chemical Abstracts: | 2013:305335 |
| Chemical Abstracts (print): | 158:543018 |
| OpenAlex: | W2036620060 |