Novel monoliths prepared from sucrose avoiding binder and thermal treatment

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Title: Novel monoliths prepared from sucrose avoiding binder and thermal treatment
Authors: Romero Anaya, Aroldo José | Kunowsky, Mirko | Rufete Beneite, Mónica | Lillo-Rodenas, Maria Angeles | Linares-Solano, Angel
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Spherical carbons | Monoliths | Gas storage
Knowledge Area: Química Inorgánica
Issue Date: Aug-2019
Publisher: Elsevier
Citation: Microporous and Mesoporous Materials. 2019, 284: 78-81. doi:10.1016/j.micromeso.2019.04.012
Abstract: We present a process for the synthesis of binder-free carbon monoliths, which were prepared from carbon microspheres at room temperature. The microspheres were obtained through hydrothermal treatment of sucrose, and monoliths with a bulk density around 1 g cm−3 were prepared from them by a simple pressurization process. Subsequently, the monoliths were activated with CO2 in order to increase their porosity. The activation preserved the monolithic shape and yielded maximum BET surface areas close to 4000 m2 g-1. High pressure gas adsorption isotherms reveal that the activated carbon monoliths are interesting candidates for gas storage applications. High excess adsorption amounts are measured for hydrogen (1.2 wt. %) and methane (453 mg g−1) at room temperature and pressures up to 20 MPa. Taking into account the measured densities of the monoliths, a maximum volumetric excess adsorption amount of CH4 of 230 cm3cm−3 is reached.
Sponsor: The authors thank Generalitat Valenciana/Feder (PROMETEO/2018/076) and University of Alicante (VIGROB-136) for financial support.
URI: http://hdl.handle.net/10045/91532
ISSN: 1387-1811 (Print) | 1873-3093 (Online)
DOI: 10.1016/j.micromeso.2019.04.012
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Published by Elsevier Inc.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.micromeso.2019.04.012
Appears in Collections:INV - MCMA - Artículos de Revistas

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