title: Polymer-Derived Silicoboron Carbonitride Foams for CO2 Capture: From Design to Application as Scaffolds for the in Situ Growth of Metal-Organic Frameworks.
abstract: A template-assisted polymer-derived ceramic route is investigated for preparing a series of silicoboron carbonitride (Si/B/C/N) foams with a hierarchical pore size distribution and tailorable interconnected porosity. A boron-modified polycarbosilazane was selected to impregnate monolithic silica and carbonaceous templates and form after pyrolysis and template removal Si/B/C/N foams. By changing the hard template nature and controlling the quantity of polymer to be impregnated, controlled micropore/macropore distributions with mesoscopic cell windows are generated. Specific surface areas from 29 to 239 m(2)  g(-1) and porosities from 51 to 77 % are achieved. These foams combine a low density with a thermal insulation and a relatively good thermostructural stability. Their particular structure allowed the in situ growth of metal-organic frameworks (MOFs) directly within the open-cell structure. MOFs offered a microporosity feature to the resulting Si/B/C/N@MOF composite foams that allowed increasing the specific surface area to provide CO2 uptake of 2.2 %.
authors.affiliation: IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM), Universite Montpellier, Place E. Bataillon, 34095, Montpellier, France.
authors.forename: Fabien
authors.initials: F
authors.lastname: Sandra
authors.affiliation: Centre de Recherche Paul Pascal, Université de Bordeaux, UPR 8641 CNRS, 115-Avenue Albert Schweitzer, 33600, Pessac, France.
authors.forename: Martin
authors.initials: M
authors.lastname: Depardieu
authors.affiliation: Nagoya Institute of Technology, Graduated School of Engineering, Department of Frontier Materials, Showa Ku, Nagoya, Aichi, 4668555, Japan.
authors.forename: Zineb
authors.initials: Z
authors.lastname: Mouline
authors.affiliation: University of Bordeaux, Laboratoire des Composites ThermoStructuraux (LCTS), UMR 5801: CNRS-Herakles(Safran)-CEA-UBx 3, Allée de La Boétie, 33600, Pessac, France.
authors.forename: Gérard L
authors.initials: GL
authors.lastname: Vignoles
authors.affiliation: Nagoya Institute of Technology, Graduated School of Engineering, Department of Frontier Materials, Showa Ku, Nagoya, Aichi, 4668555, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Iwamoto
authors.affiliation: IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM), Universite Montpellier, Place E. Bataillon, 34095, Montpellier, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Miele
authors.affiliation: Centre de Recherche Paul Pascal, Université de Bordeaux, UPR 8641 CNRS, 115-Avenue Albert Schweitzer, 33600, Pessac, France.
authors.forename: Rénal
authors.initials: R
authors.lastname: Backov
authors.affiliation: IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM), Universite Montpellier, Place E. Bataillon, 34095, Montpellier, France. Samuel.Bernard@umontpellier.fr.
authors.forename: Samuel
authors.initials: S
authors.lastname: Bernard
keywords: foams; hierarchical porosity; metal-organic frameworks; precursor chemistry; siliconboron carbonitrides