Tailoring the porosity of chemically activated hydrothermal carbons: Influence of the precursor and hydrothermal carbonization temperature

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Title: Tailoring the porosity of chemically activated hydrothermal carbons: Influence of the precursor and hydrothermal carbonization temperature
Authors: Falco, Camillo | Marco Lozar, Juan Pablo | Salinas Torres, David | Morallon, Emilia | Cazorla-Amorós, Diego | Titirici, Maria-Magdalena | Lozano Castelló, Dolores
Research Group/s: Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Tailored porosity | Chemically activated hydrothermal carbons | Hydrothermal carbonization
Knowledge Area: Química Física | Química Inorgánica
Issue Date: Oct-2013
Publisher: Elsevier
Citation: Carbon. 2013, 62: 346-355. doi:10.1016/j.carbon.2013.06.017
Abstract: Advanced porous materials with tailored porosity (extremely high development of microporosity together with a narrow micropore size distribution (MPSD)) are required in energy and environmental related applications. Lignocellulosic biomass derived HTC carbons are good precursors for the synthesis of activated carbons (ACs) via KOH chemical activation. However, more research is needed in order to tailor the microporosity for those specific applications. In the present work, the influence of the precursor and HTC temperature on the porous properties of the resulting ACs is analyzed, remarking that, regardless of the precursor, highly microporous ACs could be generated. The HTC temperature was found to be an extremely influential parameter affecting the porosity development and the MPSD of the ACs. Tuning of the MPSD of the ACs was achieved by modification of the HTC temperature. Promising preliminary results in gas storage (i.e. CO2 capture and high pressure CH4 storage) were obtained with these materials, showing the effectiveness of this synthesis strategy in converting a low value lignocellulosic biomass into a functional carbon material with high performance in gas storage applications.
Sponsor: MMT and CF would like to thank the Max-Planck Society for financial support. DLC, DST, JPML and DCA would like to thank the Spanish MINECO, Generalitat Valenciana and FEDER (Projects CTQ2012-31762 and PROMETEO/2009/047) for financial support. DST. thanks MICCIN (BES-2010-035238).
URI: http://hdl.handle.net/10045/38696
ISSN: 0008-6223 (Print) | 1873-3891 (Online)
DOI: 10.1016/j.carbon.2013.06.017
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.carbon.2013.06.017
Appears in Collections:INV - MCMA - Artículos de Revistas
INV - GEPE - Artículos de Revistas

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