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Kraft Black Liquor as a Carbonaceous Source for the Generation of Porous Monolithic Materials and Applications toward Hydrogen Adsorption and Ultrastable Supercapacitors.
Poupart, Romain; Invernizzi, Ronan; Guerlou-Demourgues, Liliane; Olchowka, Jacob; Dourges, Marie-Anne; Bobet, Jean-Louis; Deleuze, Hervé; Backov, Rénal.
Afiliação
  • Poupart R; Universite de Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France.
  • Invernizzi R; Universite de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
  • Guerlou-Demourgues L; Universite de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France.
  • Olchowka J; Universite de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
  • Dourges MA; Universite de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France.
  • Bobet JL; Universite de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
  • Deleuze H; Réseau Français sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, 80039 Amiens, France.
  • Backov R; Universite de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
Langmuir ; 39(46): 16385-16394, 2023 Nov 21.
Article em En | MEDLINE | ID: mdl-37947824
High internal phase emulsions (HIPEs) have templated self-standing porous carbonaceous materials (carboHIPEs) while employing Kraft Black Liquor, a paper milling industry byproduct, as a carbon precursor source. As such, the starting emulsion has been prepared through a laboratory-made homogenizer, while native materials have been characterized at various length scales either with Raman spectrometry, X-ray diffraction (XRD), mercury intrusion porosimetry, and nitrogen absorption. After thermal carbonization, specific surface areas ranging from ∼600 m2 g-1 to 1500 m2 g-1 have been reached while maintaining a monolithic character. Despite a poor graphitization yield, the carbonaceous materials offer good electronic transport properties, reaching 31 S m-1. When tested toward energy storage applications, the native unwashed materials revealed a hydrogen storage of 0.07 wt % at 40 bar and room temperature (RT), while hydrogen retention is reaching 0.37 wt % at 40 bar and RT for the washed sample. When employed as supercapacitor electrodes, these carbonaceous foams are able to deliver high capacities of ∼140 F/g at 1 A/g, thereby matching the ones obtained from a commercial carbon reference, while additionally providing a restored remnant capacity of 120 F/g at 2 A/g over 5000 cycle numbers.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article