Data/hora: 15/06/2024 18:24:09

Biblioteca(s): | Embrapa Florestas; Embrapa Solos; Embrapa Unidades Centrais.
Data corrente: | 02/08/2012
Data da última atualização: | 13/08/2012
Autoria: | GUIOTOKU, M.; HANSEL, F. A.; NOVOTNY, E. H.; MAIA, C. M. B. de F.
Afiliação: | MARCELA GUIOTOKU, CNPF; FABRICIO AUGUSTO HANSEL, CNPF; ETELVINO HENRIQUE NOVOTNY, CNPS; CLAUDIA MARIA BRANCO DE F MAIA, CNPF.
Título: | Molecular and morphological characterization of hydrochar produced by microwave-assisted hydrothermal carbonization of cellulose.
Ano de publicação: | 2012
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 5, p. 687-692, maio 2012.
Idioma: | Inglês
Conteúdo: | The objective of this work was to characterize the morphology and molecular composition of the hydrochar produced by microwave&#8209;assisted hydrothermal carbonization of cellulose. The produced hydrochar consists mainly of aggregate microspheres with about 2.0 &#956;m in diameter, with aliphatic and aromatic structures and the presence of carbonyl functional groups. The aromatic groups are formed mainly by benzofuran&#8209;like structures, being chemically different from common cellulose char. Microwave&#8209;assisted hydrothermal carbonization yields a functionalized carbon&#8209;rich material similar to that produced by the conventional hydrothermal process.
Palavras-Chave: | Anthropogenic dark earth of Amazonia; Espectometria de massa; Espectrometria de massa; Nuclear magnetic resonance; Ressonância magnética nuclear; Terra preta de índio.
Thesagro: | Carvão vegetal; Cromatografia gasosa.
Thesaurus Nal: | Biochar; Charcoal; Gas chromatography; Mass spectrometry; Nuclear magnetic resonance spectroscopy.

Categoria do assunto:

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P Recursos Naturais, Ciências Ambientais e da Terra

URL:

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/63577/1/2012-ClaudiaM-PAB-Molecular.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/69541/1/Molecular-and-morphological-characterization.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/62904/1/Molecular-and-morphological.pdf

Registro original: | Embrapa Florestas (CNPF)

Exemplares:

AI-SEDE - (53250-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CNPF - (50150-1) - UPC - AP - DD -  -  -  - DIS
CNPS - (16844-1) - UPC - AP - DD -  -  - 2012.00188 - DIS