Solid-State Nuclear Magnetic Resonance Characterization of Chars Obtained from Hydrothermal Carbonization of Corncob and Miscanthus (Articolo in rivista)

Type
Label
  • Solid-State Nuclear Magnetic Resonance Characterization of Chars Obtained from Hydrothermal Carbonization of Corncob and Miscanthus (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ef3017128 (literal)
Alternative label
  • Calucci, L; Rasse, DP; Forte, C (2013)
    Solid-State Nuclear Magnetic Resonance Characterization of Chars Obtained from Hydrothermal Carbonization of Corncob and Miscanthus
    in Energy & fuels (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Calucci, L; Rasse, DP; Forte, C (literal)
Pagina inizio
  • 303 (literal)
Pagina fine
  • 309 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/ef3017128 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 27 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche - CNR, Via Giuseppe Moruzzi 1, 56124 Pisa, Italy Bioforsk, Norwegian Institute for Agricultural and Environmental Research, NO-1432 Ås, Norway (literal)
Titolo
  • Solid-State Nuclear Magnetic Resonance Characterization of Chars Obtained from Hydrothermal Carbonization of Corncob and Miscanthus (literal)
Abstract
  • Corncob and Miscanthus feedstocks were hydrothermally carbonized at 230 °C for 6 h in an autoclave under autogenous pressure, obtaining fine brown powders with higher carbon and lower hydrogen and oxygen contents than the starting materials. The chemical structure of feedstocks and hydrochars was investigated by 13C cross-polarization magic angle spinning (CP-MAS) nuclear magnetic resonance (NMR) spectroscopy complemented by Fourier transform infrared (FTIR) spectroscopy and elemental analysis. In particular, a procedure including CP dynamics analysis and spectral deconvolution was applied to obtain quantitative information on the composition of the analyzed materials from 13C CP-MAS spectra. Miscanthus feedstock contained larger amounts of lignin and crystalline cellulose, which concurred to reduce cellulose exposition to hot water during the hydrothermal carbonization (HTC) process. As a consequence, a lower furan/aromatic ratio was found for Miscanthus versus corncob hydrochars. (literal)
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