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Accelerated Electro...
Accelerated Electrochemical Decomposition of Li2O2 under X-ray Illumination
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- Liu, Jia (författare)
- Uppsala universitet,Strukturkemi
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- Roberts, Matthew (författare)
- Uppsala universitet,Strukturkemi
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- Younesi, Reza (författare)
- Uppsala universitet,Strukturkemi
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- Dahbi, Mohammed (författare)
- Uppsala universitet,Strukturkemi
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- Edström, Kristina (författare)
- Uppsala universitet,Strukturkemi
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- Gustafsson, Torbjörn (författare)
- Uppsala universitet,Strukturkemi
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- Zhu, Jiefang (författare)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2013-11-15
- 2013
- Engelska.
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Ingår i: The Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 4:23, s. 4045-4050
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https://uu.diva-port... (primary) (Raw object)
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http://uu.diva-porta...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- This work presents the first report detailing the effect of X-rays on the electrochemical decomposition of Li2O2, which is the main reaction during the charging process in a Li-O-2 battery. An operando synchrotron radiation powder X-ray diffraction (SR-PXD) experiment was performed. The results indicate that the electrochemical decomposition of Li2O2 is dramatically accelerated under X-ray irradiation. The accelerated decomposition of Li2O2 follows a zero-order reaction, and the decomposition rate constant is proportional to the intensity of X-ray used. A mechanism for the electrochemical decomposition of Li2O2 under X-ray irradiation is proposed. These results give an insight into the charging process in Li-O-2 batteries.
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