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Article Dans Une Revue Applied Materials Today Année : 2020

Investigating the properties of humins foams, the porous carbonaceous materials derived from biorefinery by-products

Gerard P. M. van Klink
  • Fonction : Auteur
Charlotte Hurel
Claire Lomenech
  • Fonction : Auteur
  • PersonId : 1067388
Alain Celzard
Vanessa Fierro

Résumé

Humins as biorefineries by-product can be converted with a direct heating treatment into new rigidporous carbon materials known as humins foams. Currently, not many informations about this newmaterial are known. Here, a preparation protocol in two steps involving foaming and carbonization isreported, while the materials have been investigated in terms of morphology, elemental content, wateradsorption–desorption, stability to solvents and high temperatures, and thermal conductivity. In orderto evaluate their potential uses in applications such as water purification, the pH associated to the zerocharge point has been identified. Foams prepared under air ventilated condition revealed an extremelynegative surface, which can be used in cation exchange applications. The surface’s groups have been iden-tified by Boehm titration, showing that this behavior can be associated to the presence of acid moieties,while the basic species result absent. The humins foams have been also tested through CO2adsorptiontests at realistic operation conditions, revealing that their performances can compete with materialsreported in literature. Finally, activated carbon monoliths from carbonized humins foams using CO2acti-vation were tested, reaching a surface area of 1347 m2g−1after 20 min and 1482 m2g−1after 40 min ofactivation. These monoliths have been characterized in terms of morphology and elemental content. Theresults prove that the humins foams are very versatile materials, cost effective and easy to produce, withpromising properties that can be further tailored for foreseen applications.

Domaines

Matériaux
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Origine : Publication financée par une institution

Dates et versions

hal-02897968 , version 1 (18-12-2020)

Identifiants

Citer

Pierluigi Tosi, Gerard P. M. van Klink, Charlotte Hurel, Claire Lomenech, Alain Celzard, et al.. Investigating the properties of humins foams, the porous carbonaceous materials derived from biorefinery by-products. Applied Materials Today, 2020, 20, pp.100622. ⟨10.1016/j.apmt.2020.100622⟩. ⟨hal-02897968⟩
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