Cited by 79NMR spectroscopy and applicationsSoil and Unsaturated FlowSoil Carbon and Nitrogen Dynamics

Nature of water-biochar interface interactions

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Conte, Pellegrino, Marsala, Valentina, De Pasquale, Claudio, Bubici, Salvatore, Valagussa, Massimo, Pozzi, Alessandro, Alonzo, Giuseppe·2013·GCB Bioenergy

Abstract

Abstract A poplar biochar obtained by an industrial gasification process was saturated with water and analyzed using fast field cycling (FFC) NMR relaxometry in a temperature range between 299 and 353 K. Results revealed that the longitudinal relaxation rate increased with the increment of the temperature. This behavior was consistent with that already observed for paramagnetic inorganic porous media for which two different relaxation mechanisms can be accounted for: outer‐ and inner‐sphere mechanisms. The former is due to water diffusing from the closest approach distance to infinity, whereas the second is due to water interacting by nonconventional H‐bonds to the porous surface of the solid material. In particular, the inner‐sphere relaxation appeared to be predominant in the water‐saturated biochar used in the present study. This study represents a fundamental first step for the full comprehension of the role played by biochar in the draining properties of biochar‐amended soils.

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Crossref · 10.1111/gcbb.12009

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Authors
Conte, P., Marsala, V., De Pasquale, C., Bubici, S., Valagussa, M., Pozzi, A., & Alonzo, G.
Affiliations
  • University of Palermo (IT)
  • Dipartimento dei Sistemi Agro‐Ambientali Università degli Studi di Palermo v.le delle Scienze, edificio 4 Palermo 90128 Italy
  • INVENTO s.r.l. via Nizza 52 Torino 10126 Italy
  • M.A.C. Minoprio Analisi e Certificazioni S.r.l. c/o Fondazione Minoprio Viale Raimondi 54 Vertemate con Minoprio (Co) 22070 Italy
  • A.G.T. Advanced Gasification Technology S.r.l. Via Trieste 2 Arosio (Co) 22060 Italy
Venue
GCB Bioenergy
Publisher
Wiley
Published
2012-10-05
Volume
5
Issue
2
Pages
116-121
ISSN
  • 1757-1693 (ISSN-L)
  • 1757-1707
OpenAlex
W2009603916
Cited by
79
References
28
Citations by year
2026: 1 · 2025: 5 · 2024: 6 · 2023: 5 · 2022: 3 · 2021: 5 · 2020: 2 · 2019: 7 · 2018: 7 · 2017: 7 · 2016: 9 · 2015: 7 · 2014: 7 · 2013: 6
FWCI
2.88
Type
journal article
Language
en
Open access
Locations
  • GCB Bioenergy (publishedVersion)
  • Nova Science Publishers (Nova Science Publishers, Inc.) (submittedVersion, other-oa)
Topics
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › NMR spectroscopy and applications
  • Physical Sciences › Engineering › Civil and Structural Engineering › Soil and Unsaturated Flow
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
Keywords
biochar, water adsorption, fast field cycling NMR, spin-lattice relaxation, hydrogen bonding, gasification, temperature dependence, soil drainage, biochar-amended soil

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