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Structure-property ...
Structure-property relationships in organic battery anode materials : exploring redox reactions in crystalline Na- and Li-benzene diacrylate using combined crystallography and density functional theory calculations
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- Pereira de Carvalho, Rodrigo (author)
- Uppsala universitet,Materialteori,Strukturkemi
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- Marchiori, Cleber F.N. (author)
- Uppsala universitet,Strukturkemi
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- Oltean, Viorica-Alina (author)
- Uppsala University
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- Renault, Steven (author)
- University Nantes, FRA,Univ Nantes, CNRS, Inst Mat Jean Rouxel, IMN, F-44000 Nantes, France.
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- Willhammar, Tom (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm University,Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
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- Gómez, Cesar Pay, Docent, 1974- (author)
- Uppsala universitet,Strukturkemi
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- Araujo, Moyses, 1975- (author)
- Uppsala universitet,Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Uppsala University,Materialteori,Karlstad Univ, Dept Engn & Phys, S-65188 Karlstad, Sweden.
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- Brandell, Daniel, 1975- (author)
- Uppsala universitet,Strukturkemi
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- Mihali, Viorica-Alina (author)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2021
- 2021
- English.
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In: Materials Advances. - : Royal Society of Chemistry. - 2633-5409. ; 2:3, s. 1024-1034
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Abstract
Subject headings
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- Organic-based materials are potential candidates for a new generation of sustainable and environmentally friendly battery technologies, but insights into the structural, kinetic and thermodynamic properties of how these compounds lithiate or sodiate are currently missing. In this regard, benzenediacrylates (BDAs) are here investigated for application as low-potential electrodes in Na-ion and Li-ion batteries. Aided by a joint effort of theoretical and experimental frameworks, we unveil the structural, electronic and electrochemical properties of the Na(2)BDA and Li(2)BDA compounds. The crystal structure of these systems in their different sodiated and lithiated phases have been predicted by an evolutionary algorithm interplayed with density functional theory calculations. Due to difficulties in obtaining useful single crystals for the BDA salts, other methods have been explored in combination with the computational approach. While the predicted structure of the pristine Na(2)BDA compound has been experimentally confirmed through the 3D Electron Diffraction (3DED) technique, the hydrated version of Li(2)BDA is analysed through single crystal X-ray diffraction. The calculated cell voltages for the sodiation (0.63 V vs. Na/Na+) and lithiation (1.12 V vs. Li/Li+) processes display excellent quantitative agreement with experimental findings. These results validate the developed theoretical methodology. Moreover, fundamental aspects of the electronic structures and their relationship with the reaction thermodynamics are discussed. The results suggest a possible disproportionation between the sodiated phases of Na(2)BDA, supporting a two-electron process, and also unveil major differences for the two employed cations: Na+ and Li+.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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