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Significant enhancement of catalytic activities of manganese oxide octahedral molecular sieve by marginal amount of doping vanadium

Paper ID Volume ID Publish Year Pages File Format Full-Text
51511 46845 2010 5 PDF Available
Title
Significant enhancement of catalytic activities of manganese oxide octahedral molecular sieve by marginal amount of doping vanadium
Abstract

Vanadium doped hollandite-type manganese oxide octahedral molecular sieve (OMS-2) was synthesized by a simple hydrothermal route. The results of catalytic tests showed that marginal amount of doping vanadium had greatly enhanced catalytic activities of OMS-2 not only in low-temperature complete oxidation of formaldehyde at 140 °C but also in high-temperature complete oxidation of methane at 450 °C. The results of XPS, HRTEM and H2-TPR measurements revealed that the enhancements of the catalytic activities primarily resulted from the increase of surface defect sites regardless of reaction temperatures and nature of reactants, rather than reducibility and average oxidation state of manganese.

Keywords
Hollandite-tpye manganese oxide; Doping vanadium; Surface defects; HCHO; CH4
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Significant enhancement of catalytic activities of manganese oxide octahedral molecular sieve by marginal amount of doping vanadium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 10, 11 May 2010, Pages 871–875
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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