Nanometer-scale electrochemical patterning of LiMn2O4 surfaces by an atomic force microscope operating in air Metadata

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Title

  • Main Title Nanometer-scale electrochemical patterning of LiMn2O4 surfaces by an atomic force microscope operating in air

Creator

  • Author: Kostecki, Robert
    Creator Type: Personal
  • Author: Bonhomme, Frederic
    Creator Type: Personal
  • Author: Servant, Laurent
    Creator Type: Personal
  • Author: Argoul, Francoise
    Creator Type: Personal
  • Author: McLarnon, Frank
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Division of Chemical Sciences.
    Contributor Type: Organization
    Contributor Info: USDOE Director. Office of Energy Research. Chemical Sciences Division (United States)

Publisher

  • Name: Lawrence Berkeley National Laboratory
    Place of Publication: Berkeley, California
    Additional Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Date

  • Creation: 2001-06-22

Language

  • English

Description

  • Content Description: Electrochemical nanometer-scale patterning of the surface of a conducting lithium manganese oxide (LiMn{sub 2}O{sub 4}) by scanning probe microscopy (SPM) was studied. The ability to produce nanometer-size patterns of chemically modified oxide or nanometer-sized alterations of the oxide morphology is demonstrated and discussed with reference to possible mechanisms. It is demonstrated that unlike the SPM-based surface oxidation of metals and semiconductors, the LiMn{sub 2}O{sub 4} surface is altered via electrochemically generated species. We show that a localized surface chemical change can be confined to a depth which depends on the oxide-tip voltage difference and ambient humidity. In situ Raman microscopy measurements of localized electrochemical reaction products suggest complex mechanisms of processes induced at the LiMn{sub 2}O{sub 4} surface, such as delithiation through Li-proton exchange and disproportionation of LiMn{sub 2}O{sub 4} to MnO{sub 2} and soluble Mn{sup 2+} species.
  • Physical Description: 7 pages

Subject

  • Keyword: Manganese Oxides
  • STI Subject Categories: 25 Energy Storage
  • Keyword: Reduction
  • Keyword: Air
  • Keyword: Oxidation
  • Keyword: Humidity
  • Keyword: Microscopy
  • Keyword: Oxides
  • Keyword: Lithium
  • Keyword: Microscopes
  • Keyword: Morphology
  • Keyword: Probes

Source

  • Other Information: PBD: 22 Jun 2001

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: LBNL--48360
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/834263
  • Office of Scientific & Technical Information Report Number: 834263
  • Archival Resource Key: ark:/67531/metadc777145

Note

  • Display Note: OSTI as DE00834263
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