%0 Journal Article %T XANES analysis for cation-vacancy distribution induced by doping Al ions in transition-metal-oxide anodes of lithium battery %+ Graduate School of Advanced Integration Science %+ Institut de Physique de Rennes (IPR) %+ Chiba University %+ Nagoya Institute of Technology (NIT) %A Koide, A. %A Eguchi, M. %A Komiya, N. %A Kogo, J. %A Sonoyama, N. %A Niki, K. %Z Chiba University %Z Ritsumeikan University %< avec comité de lecture %@ 0969-806X %J Radiation Physics and Chemistry %I Elsevier %V 175 %P 108154 %8 2020-10 %D 2020 %R 10.1016/j.radphyschem.2019.02.013 %K XANES %K Vacancy %K Transition metal oxide %K Lithium battery %K Aluminium %K First-principle calculation %Z Chemical Sciences/Material chemistry %Z Chemical Sciences/Inorganic chemistry %Z Chemical Sciences/Theoretical and/or physical chemistryJournal articles %X We measured an Al K-edge x-ray absorption near edge structure (XANES) spectrum of Al doped NiO for anode materials of lithium ion batteries. We found that the spectrum of the Al doped NiO is similar to that of γ-Al2O3. Calculated site-specific XANES spectra strongly correspond to the coordination nature around the absorbing Al ion, indicating aggregation of cation vacancies surrounded by Al ions in the Al doped NiO. These finding could be useful to understand how Li ions migrate in the anode. %G English %2 https://univ-rennes.hal.science/hal-02176674/document %2 https://univ-rennes.hal.science/hal-02176674/file/Koide%20et%20al_2019_XANES%20analysis%20for%20cation-vacancy%20distribution%20induced%20by%20doping%20Al%20ions%20in.pdf %L hal-02176674 %U https://univ-rennes.hal.science/hal-02176674 %~ UNIV-RENNES1 %~ CNRS %~ OSUR %~ IPR %~ STATS-UR1 %~ UR1-SPM %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ TEST-UR-CSS %~ UNIV-RENNES %~ UR1-MMS