2007
DOI: 10.1016/j.jaap.2007.05.001
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Changes in commercial wood charcoals by thermal treatments

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Cited by 49 publications
(30 citation statements)
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“…The aromatic skeletal C C vibration absorptions occur in the 1600-1450 cm −1 region. Regarding the bands between 1300 and 900 cm −1 , the as (C-O-C) vibrations can be related to asymmetric vibrations in single graphitic sheet and between two such sheets; oxygen can act as a cross-linking agent between aromatic sheets [21]. The strong bands at 1245 and 1160 cm −1 point out that the amount of ether-type structures is significant in cotton straw.…”
Section: Chemical Structure Of Biomass Materialsmentioning
confidence: 97%
“…The aromatic skeletal C C vibration absorptions occur in the 1600-1450 cm −1 region. Regarding the bands between 1300 and 900 cm −1 , the as (C-O-C) vibrations can be related to asymmetric vibrations in single graphitic sheet and between two such sheets; oxygen can act as a cross-linking agent between aromatic sheets [21]. The strong bands at 1245 and 1160 cm −1 point out that the amount of ether-type structures is significant in cotton straw.…”
Section: Chemical Structure Of Biomass Materialsmentioning
confidence: 97%
“…Vodeći svetski proizvođači aktivnog uglja su : SAD, Kina, Japan i Holandija. Dobijeni aktivni ugalj se sastoji iz paralelnih ravni šestočlanih ugljeničnih prstenova koji zbog vakancija ili raznih primesa grade amorfnu strukturu [6]. Na ivicama ravni, hetero-atomi (kiseonik, vodonik, azot) poseduju funkcionalne grupe koje stupaju u međusobne interakcije ili interakcije sa odgovarajućim adsorbatom.…”
Section: Uvodunclassified
“…Dada la escasez e importancia de dicha información en el estudio de la gestión de la materia prima leñosa por un lado, y el estudio arqueobotánico llevado a cabo en el sitio Paredón Lanfré -SW de la provincia de Río Negro-(ver Caruso, 2012Caruso, , 2013 Por otro lado, el trabajo experimental posee como objetivo específico: explorar si las grietas de contracción presentes en los carbones experimentales responden al estado de la madera puesta al fuego, es decir madera verde o seca. Las alteraciones producidas durante el proceso de combustión -grietas de contracción, vitrificación-dependerán del estado de la madera en el momento de su combustión (seco o verde y sano o degradado) y de las condiciones en las que se produzca el acto de la propia combustión (Zicherman, 1981;Prior & Alvin, 1983, 19861993;Schott et al, 2000;Pastor-Villegas et al, 2007). Maderas verdes o degradadas por el ataque de microorganismos no se trasformarán de la misma manera por la acción del fuego.…”
Section: Introductionunclassified