In situ Raman spectroscopy of single particle electrodes

Yu Luo, Wen Bin Cai, Daniel Alberto Scherson*

*この研究の対応する著者

研究成果: Article査読

33 被引用数 (Scopus)

抄録

Raman spectra of isolated single particles of technical grade LiMn2O4 (mean diam ca. 10 μm) embedded in Au foils were recorded in situ in 1 M LiPF6 in ethylene carbonate/dimethyl carbonate (2:1 w/w) solutions using a Raman microscope. Data collected under steady state as a function of applied potential were in excellent agreement with those reported for the material using other approaches. In addition, the rather high signal to noise ratios made it possible, for the first time, to monitor in real time the spectral properties of individual particles under transient conditions during a voltammetric scan. Extensions of this novel in situ measurement strategy are expected to allow the electrical state of particles incorporated into electrodes in battery-type environments to be determined spectroscopically both with temporal and spatial resolution, enabling in certain instances direct comparisons to be made with predictions based on theoretical modeling.

本文言語English
ジャーナルElectrochemical and Solid-State Letters
4
7
DOI
出版ステータスPublished - 2001 7月 1
外部発表はい

ASJC Scopus subject areas

  • 化学工学(全般)
  • 材料科学(全般)
  • 物理化学および理論化学
  • 電気化学
  • 電子工学および電気工学

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