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dc.contributor.author
Grasso, María Laura
dc.contributor.author
Fernández Albanesi, Luisa Francisca
dc.contributor.author
Garroni, Sebastiano
dc.contributor.author
Mulas, Gabriele
dc.contributor.author
Gennari, Fabiana Cristina
dc.date.available
2020-09-28T13:51:01Z
dc.date.issued
2020-09
dc.identifier.citation
Grasso, María Laura; Fernández Albanesi, Luisa Francisca; Garroni, Sebastiano; Mulas, Gabriele; Gennari, Fabiana Cristina; Methane production by mechanochemical processing of MgH2-Li2CO3 as sources of H2 and CO2 at room temperature; Elsevier; Journal of CO2 Utilization; 40; 9-2020; 1-10
dc.identifier.issn
2212-9820
dc.identifier.uri
http://hdl.handle.net/11336/114938
dc.description.abstract
The reutilization of CO2 to produce valuable chemical fuels is an attractive approach to reduce the greenhouse effect and global warming. In this work, the room temperature production of CH4/H2 fuel mixtures via mechanochemical activation of Li2CO3-MgH2 system was explored. The CH4/H2 fuel mixtures were obtained by a free-catalyst reaction, with high selectivity and using Li2CO3 and MgH2 as solid portable sources of CO2 and H2, respectively. The effect of processing parameters on both the evolution of the solid phases and the production of CH4/H2 fuel mixtures was studied using X-ray diffraction, spectroscopic techniques, electron scanning microscopy and gas chromatography. Thermodynamic calculations predict the complete CO2 reduction to CH4, with simultaneous formation of MgO and Li2O. Experimental evidence supports the progressive formation of MgO and the appearance of Li2O. The presence of H2 simultaneously with CH4 in the gas phase was due to kinetic restrictions. Based on experimental results and equilibrium composition calculations, the reaction mechanism was proposed. The kinetic analysis reveals that the rate limiting CH4 production is the nucleation of MgO/Li2O in the surroundings of Li2CO3, while the H2 release is controlled by the reaction interface between MgH2/Mg or MgH2/MgO.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CO2 CONVERTION
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ALKALINE CARBONATES
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LIGHT METAL HYDRIDES
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METHANE
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HYDROGEN
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Otras Ingeniería de los Materiales
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Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Methane production by mechanochemical processing of MgH2-Li2CO3 as sources of H2 and CO2 at room temperature
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-09-25T19:06:16Z
dc.identifier.eissn
2212-9839
dc.journal.volume
40
dc.journal.pagination
1-10
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Grasso, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Universidad Nacional de Cuyo; Argentina
dc.description.fil
Fil: Fernández Albanesi, Luisa Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
dc.description.fil
Fil: Garroni, Sebastiano. Università degli Studi di Sassari; Italia
dc.description.fil
Fil: Mulas, Gabriele. Università degli Studi di Sassari; Italia
dc.description.fil
Fil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada Cab. Departamento Fisicoquimica de Materiales.; Argentina. Universidad Nacional de Cuyo; Argentina
dc.journal.title
Journal of CO2 Utilization
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2212982020304637
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jcou.2020.101209
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