Electrical Conductivity of Magnesium Oxide as a Catalyst for Radical Chain Hydrocarbon Pyrolysis Reactions Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 2011, Volume: 52, Number: 1, Pages: 98-103 Pages count : 6 DOI: 10.1134/S0023158411010204 | ||||
Tags | Cationic Vacancy; Extrinsic Defect; Magnesium Oxide Surface; Charge Carrier Injection; Hole Defect | ||||
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Abstract:
The electrical conductivity of polycrystalline MgO between 350 and 750°C is determined by the transport of surface electronic and hole defects and depends on the applied voltage. Near 620°C at low applied voltages, the conductivity decreases by 1–2 orders of magnitude in a narrow temperature range (ΔT = 75°C), and this is accompanied by a change of the sign of the surface charge carriers. The “ignition” of the catalytic activity of magnesium oxide in free radical generation in radical chain hydrocarbon pyrolysis is observed in the same temperature range. It is assumed that the change of the sign of the charge carriers is due to the existence of an isoelectric temperature T i and that, at T > T i , O O · defects come out to the magnesium oxide surface.
Cite:
Vasilʹeva N.A.
, Uvarov N.F.
Electrical Conductivity of Magnesium Oxide as a Catalyst for Radical Chain Hydrocarbon Pyrolysis Reactions
Kinetics and Catalysis. 2011. V.52. N1. P.98-103. DOI: 10.1134/S0023158411010204 WOS Scopus РИНЦ
Electrical Conductivity of Magnesium Oxide as a Catalyst for Radical Chain Hydrocarbon Pyrolysis Reactions
Kinetics and Catalysis. 2011. V.52. N1. P.98-103. DOI: 10.1134/S0023158411010204 WOS Scopus РИНЦ
Original:
Васильева Н.А.
, Уваров Н.Ф.
Электропроводность оксида магния как катализатора радикально-цепных реакций пиролиза углеводородов
Кинетика и катализ. 2011. Т.52. №1. С.99-105. РИНЦ
Электропроводность оксида магния как катализатора радикально-цепных реакций пиролиза углеводородов
Кинетика и катализ. 2011. Т.52. №1. С.99-105. РИНЦ
Dates:
Submitted: | Nov 30, 2009 |
Published print: | Feb 1, 2011 |
Published online: | Feb 23, 2011 |
Identifiers:
Web of science | WOS:000289260900016 |
Scopus | 2-s2.0-79952758376 |
Elibrary | 16684426 |
Chemical Abstracts | 2011:233135 |
Chemical Abstracts (print) | 155:275715 |
OpenAlex | W1979856484 |