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A robust, modular a...
A robust, modular approach to produce graphene-MO X multilayer foams as electrodes for Li-ion batteries
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- Gazzano, Massimo (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xia, Zhenyuan, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Christian, Meganne (författare)
- Consiglo Nazionale Delle Richerche
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- Arbizzani, Catia (författare)
- Universita di Bologna,University of Bologna
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- Morandi, V. (författare)
- Consiglo Nazionale Delle Richerche
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- Quintano, Vanesa (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kovtun, Alessandro (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Palermo, Vincenzo, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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(creator_code:org_t)
- 2019
- 2019
- Engelska.
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Ingår i: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3372 .- 2040-3364. ; 11:12, s. 5265-5273
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https://research.cha... (primary) (free)
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https://pubs.rsc.org...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
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- Major breakthroughs in batteries would require the development of new composite electrode materials, with a precisely controlled nanoscale architecture. However, composites used for energy storage are typically a disordered bulk mixture of different materials, or simple coatings of one material onto another. We demonstrate here a new technique to create complex hierarchical electrodes made of multilayers of vertically aligned nanowalls of hematite (Fe 2 O 3 ) alternated with horizontal spacers of reduced graphene oxide (RGO), all deposited on a 3D, conductive graphene foam. The RGO nanosheets act as porous spacers, current collectors and protection against delamination of the hematite. The multilayer composite, formed by up to 7 different layers, can be used with no further processing as an anode in Li-ion batteries, with a specific capacity of up to 1175 μA h cm -2 and a capacity retention of 84% after 1000 cycles. Our coating strategy gives improved cyclability and rate capacity compared to conventional bulk materials. Our production method is ideally suited to assemble an arbitrary number of organic-inorganic materials in an arbitrary number of layers.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Textil-, gummi- och polymermaterial (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Textile, Rubber and Polymeric Materials (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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