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Oxygen Isotope (18O2) Evidence on the Role of Oxygen in the Plasma-Driven Catalysis of VOC Oxidation
被引:35
作者:
Kim, Hyun-Ha
[1
]
Ogata, Atsushi
[1
]
Schiorlin, Milko
[2
]
Marotta, Ester
[2
]
Paradisi, Christina
[2
]
机构:
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan
[2] Univ Padua, Dept Chem Sci, Padua, Italy
关键词:
Plasma-driven catalysis;
Heterogeneous catalyst;
Isotope oxygen;
VOC oxidation;
TEMPERATURE-PROGRAMMED DESORPTION;
VOLATILE ORGANIC-COMPOUNDS;
ELECTRON-BEAM IRRADIATION;
NONTHERMAL PLASMA;
SUPPORTED SILVER;
EXCHANGE-REACTION;
RATE COEFFICIENTS;
FLUE-GAS;
DECOMPOSITION;
ADSORPTION;
D O I:
10.1007/s10562-010-0491-0
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
This paper reports isotopic evidence on non-thermal plasma-induced fixation of gas-phase oxygen on the surface of several catalysts such as TiO2, Ag/TiO2, Ag/gamma-Al2O3 and Ag/MS-13X at atmospheric-pressure. On-line mass spectrometric analysis and stoichiometric comparison of reactants and products revealed that the fixed surface oxygen can be activated by nonthermal plasma. The fixed O-18 by nonthermal plasma survived for a certain period of time (about 30 min), and involved in the formation of isotope-exchanged oxygen ((OO)-O-18-O-16) and isotope containing COx (CO and CO2).
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页码:277 / 282
页数:6
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