Kraft black liquor as a carbonaceous source for the generation of porous monolithic materials and applications toward hydrogen adsorption and ultrastable supercapacitors - Université de Bordeaux Access content directly
Journal Articles Langmuir Year : 2023

Kraft black liquor as a carbonaceous source for the generation of porous monolithic materials and applications toward hydrogen adsorption and ultrastable supercapacitors

Abstract

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.
Embargoed file
2023-129_SI.pdf (370.84 Ko) Télécharger le fichier
Embargoed file
0 2 19
Year Month Jours
Avant la publication
Friday, May 10, 2024
Embargoed file
Friday, May 10, 2024
Please log in to request access to the document

Dates and versions

hal-04299374 , version 1 (23-11-2023)

Identifiers

Cite

Romain Poupart, Ronan Invernizzi, Liliane Guerlou-Demourgues, Jacob Olchowka, Marie Anne Dourges, et al.. Kraft black liquor as a carbonaceous source for the generation of porous monolithic materials and applications toward hydrogen adsorption and ultrastable supercapacitors. Langmuir, 2023, 39 (46), pp.16385-16394. ⟨10.1021/acs.langmuir.3c02147⟩. ⟨hal-04299374⟩
24 View
22 Download

Altmetric

Share

Gmail Facebook X LinkedIn More