Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Propane Oxidation Over Pd/Al2O3 : Kinetic and In Situ XPS Study. / Khudorozhkov, Alexandr K.; Chetyrin, Igor A.; Bukhtiyarov, Andrey V. и др.
в: Topics in Catalysis, Том 60, № 1-2, 02.2017, стр. 190-197.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Propane Oxidation Over Pd/Al2O3
T2 - Kinetic and In Situ XPS Study
AU - Khudorozhkov, Alexandr K.
AU - Chetyrin, Igor A.
AU - Bukhtiyarov, Andrey V.
AU - Prosvirin, Igor P.
AU - Bukhtiyarov, Valerii I.
N1 - Publisher Copyright: © 2017, Springer Science+Business Media New York.
PY - 2017/2
Y1 - 2017/2
N2 - The series of Pd/Al2O3supported catalysts with different sizes of palladium particles has been prepared and studied in total propane oxidation under various conditions. The preparation method provides a variation of the Pd particle sizes within the range of 3–6 nm and core–shell distribution of the palladium particles on alumina granules. It has been observed that an increase in Pd particle sizes leads to a parallel increase in turnover frequency (TOF) values in total propane oxidation. Both propane-to-oxygen ratio and temperature also affects the catalytic activity. Chemical state of palladium in the catalysts has been studied under the reaction conditions using in situ XPS. It has been shown that both the metallic and oxidized Pd species coexist on the catalyst surface during the propane oxidation reaction. Remarkably, evident linear correlation between TOF values and Pd2+/Pd0ratios has been revealed.
AB - The series of Pd/Al2O3supported catalysts with different sizes of palladium particles has been prepared and studied in total propane oxidation under various conditions. The preparation method provides a variation of the Pd particle sizes within the range of 3–6 nm and core–shell distribution of the palladium particles on alumina granules. It has been observed that an increase in Pd particle sizes leads to a parallel increase in turnover frequency (TOF) values in total propane oxidation. Both propane-to-oxygen ratio and temperature also affects the catalytic activity. Chemical state of palladium in the catalysts has been studied under the reaction conditions using in situ XPS. It has been shown that both the metallic and oxidized Pd species coexist on the catalyst surface during the propane oxidation reaction. Remarkably, evident linear correlation between TOF values and Pd2+/Pd0ratios has been revealed.
KW - In situ XPS
KW - Propane oxidation
KW - Size effect
KW - Supported palladium catalysts
KW - TOF
KW - COMBUSTION
KW - SUPPORTED PALLADIUM CATALYSTS
KW - STATE
KW - METHANE OXIDATION
KW - ALUMINA
KW - PRESSURE
KW - PD
KW - RAY PHOTOELECTRON-SPECTROSCOPY
KW - PARTICLE-SIZE
KW - METAL-OXIDES
UR - http://www.scopus.com/inward/record.url?scp=85012911924&partnerID=8YFLogxK
U2 - 10.1007/s11244-017-0733-0
DO - 10.1007/s11244-017-0733-0
M3 - Article
AN - SCOPUS:85012911924
VL - 60
SP - 190
EP - 197
JO - Topics in Catalysis
JF - Topics in Catalysis
SN - 1022-5528
IS - 1-2
ER -
ID: 10310128