Literature DB >> 16292931

Electronic structure of phospho-olivines Li(x)FePO4 (x = 0, 1) from soft-x-ray-absorption and -emission spectroscopies.

A Augustsson1, G V Zhuang, S M Butorin, J M Osorio-Guillén, C L Dong, R Ahuja, C L Chang, P N Ross, J Nordgren, J-H Guo.   

Abstract

The electronic structure of the phospho-olivine Li(x)FePO4 was studied using soft-x-ray-absorption (XAS) and emission spectroscopies. Characteristic changes in the valence and conduction bands are observed upon delithation of LiFePO4 into FePO4. In LiFePO4, the Fe-3d states are localized with little overlap with the O-2p states. Delithiation of LiFePO4 gives stronger hybridization between Fe-3d states and O-2p states leading to delocalization of the O-2p states. The Fe L-edge absorption spectra yield "fingerprints" of the different valence states of Fe in LiFePO4 and FePO4. Resonant soft-x-ray-emission spectroscopy at the Fe L edge shows strong contributions from resonant inelastic soft x-ray scattering (RIXS), which is described using an ionic picture of the Fe-3d states. Together the Fe L-edge XAS and RIXS study reveals a bonding character of the Fe 3d-O2p orbitals in FePO4 in contrast to a nonbonding character in LiFePO4.

Entities:  

Year:  2005        PMID： 16292931     DOI： 10.1063/1.2107387

Source DB:  PubMed          Journal:  J Chem Phys        ISSN： 0021-9606            Impact factor:   3.488


  7 in total

1.  Novel spectro-electrochemical cell for in situ/operando observation of common composite electrode with liquid electrolyte by X-ray absorption spectroscopy in the tender X-ray region.

Authors:  Koji Nakanishi; Daisuke Kato; Hajime Arai; Hajime Tanida; Takuya Mori; Yuki Orikasa; Yoshiharu Uchimoto; Toshiaki Ohta; Zempachi Ogumi
Journal:  Rev Sci Instrum       Date:  2014-08       Impact factor: 1.523

2.  Mesoscale phase distribution in single particles of LiFePO4 following lithium deintercalation.

Authors:  Ulrike Boesenberg; Florian Meirer; Yijin Liu; Alpesh K Shukla; Rossana Dell'anna; Tolek Tyliszczak; Guoying Chen; Joy C Andrews; Thomas J Richardson; Robert Kostecki; Jordi Cabana
Journal:  Chem Mater       Date:  2013-05-14       Impact factor: 9.811

3.  Analytical technique for self-absorption structure of iron L-emission spectra obtained by soft X-ray emission spectrometer.

Authors:  Takaomi D Yokoyama; Hideyuki Takahashi; Shogo Koshiya; Takanori Murano; Masami Terauchi
Journal:  Microscopy (Oxf)       Date:  2022-06-06       Impact factor: 2.072

4.  Three-dimensional localization of nanoscale battery reactions using soft X-ray tomography.

Authors:  Young-Sang Yu; Maryam Farmand; Chunjoong Kim; Yijin Liu; Clare P Grey; Fiona C Strobridge; Tolek Tyliszczak; Rich Celestre; Peter Denes; John Joseph; Harinarayan Krishnan; Filipe R N C Maia; A L David Kilcoyne; Stefano Marchesini; Talita Perciano Costa Leite; Tony Warwick; Howard Padmore; Jordi Cabana; David A Shapiro
Journal:  Nat Commun       Date:  2018-03-02       Impact factor: 14.919

5.  Re-evaluation of experimental measurements for the validation of electronic band structure calculations for LiFePO4 and FePO4.

Authors:  Yin Zhang; Jose A Alarco; Adam S Best; Graeme A Snook; Peter C Talbot; Jawahar Y Nerkar
Journal:  RSC Adv       Date:  2019-01-09       Impact factor: 4.036

6.  Distinct charge dynamics in battery electrodes revealed by in situ and operando soft X-ray spectroscopy.

Authors:  Xiaosong Liu; Dongdong Wang; Gao Liu; Venkat Srinivasan; Zhi Liu; Zahid Hussain; Wanli Yang
Journal:  Nat Commun       Date:  2013       Impact factor: 14.919

7.  High energy density rechargeable magnesium battery using earth-abundant and non-toxic elements.

Authors:  Yuki Orikasa; Titus Masese; Yukinori Koyama; Takuya Mori; Masashi Hattori; Kentaro Yamamoto; Tetsuya Okado; Zhen-Dong Huang; Taketoshi Minato; Cédric Tassel; Jungeun Kim; Yoji Kobayashi; Takeshi Abe; Hiroshi Kageyama; Yoshiharu Uchimoto
Journal:  Sci Rep       Date:  2014-07-11       Impact factor: 4.379
  7 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.