Effects of charring on mass, organic carbon, and stable carbon isotope composition of wood

TitleEffects of charring on mass, organic carbon, and stable carbon isotope composition of wood
Publication TypeJournal Article
Year of Publication2002
AuthorsCzimczik, C. I., Preston C. M., Schmidt M. W. I., Werner R. A., & Schulze E. D.
JournalOrganic Geochemistry
Volume33
Pagination1207-1223
Type of ArticleArticle
ISBN Number0146-6380
Accession Numberhttp://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord&UT=000179229800002
Keywords240; black; c-13 nmr; carbon; cellulosic; chars; Content Type: Biblio; cross polarization; Czimczik Research Group; gc-ms; model compounds; nuclear-magnetic-resonance; solid-state nmr; Trumbore / Czimczik Research Group; vegetation fires; white-rot decay
Abstract

To aid in understanding black carbon (BC) formation during smoldering combustion in forest fires, we characterized charring of a softwood and hardwood. Charring (150, 340, 480 degreesC) caused mass loss (7-84%), enrichment of organic carbon (OC) (0-32%), and C-13 depletion (> 150 degreesC). As determined by C-13 MAS NMR, the OC composition of the woods was dominated by (di)-O-alkyl structures, and the chars by alkyl and aromatic structures. With increasing temperature, aromatic structures increased and the chars became more similar, although initial differences in OC concentration and delta(13)C of woods persisted. The BC cluster sizes apparently remained small, pointing towards a low resistance against oxidation. Crown Copyright (C) 2002 Published by Elsevier Science Ltd. All rights reserved.
URLhttp://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord&UT=000179229800002
Alternate JournalOrg. Geochem.
ESS Associations
Research Area: 
Biogeochemical Cycles
Research Lab: 
Czimczik Research Group