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A free standing Ru–...
A free standing Ru–TiC nanowire array/carbon textile cathode with enhanced stability for Li–O2 batteries
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- Liu, Chenjuan, 1988- (författare)
- Uppsala universitet,Strukturkemi
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- Qiu, Zhen (författare)
- Uppsala universitet,Fasta tillståndets fysik,Solid State Physics
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- Brant, William (författare)
- Uppsala universitet,Strukturkemi
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- Younesi, Reza (författare)
- Uppsala universitet,Tillämpad mekanik,Strukturkemi
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- Ma, Yue (författare)
- Northwestern Polytechnical University
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- Edström, Kristina, Professor, 1958- (författare)
- Uppsala universitet,Strukturkemi
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- Gustafsson, Torbjörn, 1949- (författare)
- Uppsala universitet,Strukturkemi
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- Zhu, Jie-Fang (författare)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: Journal of Materials Chemistry A. - : Royal Society of Chemistry (RSC). - 2050-7488 .- 2050-7496. ; 6, s. 23659-23668
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https://doi.org/DOI:...
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https://uu.diva-port... (primary) (Raw object)
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https://pubs.rsc.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The instability of carbon cathode materials is one of the key problems that hinder the development of lithium–air/lithium–oxygen (Li–O2) batteries. In this contribution, a type of TiC-based cathode is developed as a suitable alternative to carbon based cathodes, and its stability with respect to its surface properties is investigated. Here, a free-standing TiC nanowire array cathode was in situ grown on a carbon textile, covering its exposed surface. The TiC nanowire array, via deposition with Ru nanoparticles, showed enhanced oxygen reduction/evolution activity and cyclability, compared to the one without Ru modification. The battery performance of the Li–O2cells with Ru–TiC was investigated by using in operando synchrotron radiation powder X-ray diffraction (SR-PXD) during a full cycle. With the aid of surface analysis, the role of the cathode substrate and surface modification is demonstrated. The presented results are a further step toward a wise design of stable cathodes for Li–O2 batteries.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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