期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 154, 期 1-2, 页码 217-224出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1381-1169(99)00383-0
关键词
heteropolyanion; lignin; lignin model compound; oxidation catalysis; oxygen
The lignin oxidative degradation in the reaction system [PMo7V5O40](8-)/O-2 has been studied using guaiacyl and syringyl beta-aryl ether dimeric lignin model compounds. The oxidation has been monitored by GC/MS and ESI/MS. Although the free phenolic and non-phenolic model compounds were both degraded under aerobic oxidation with [PMo7V5O40](8-), the reaction mechanisms involved are different. Oxidation routes leading to the cleavage of beta-O-4 bonds have been proposed. (C) 2000 Elsevier Science B.V. All rights reserved.
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