Self-assembly of virus-structured high surface area nanomaterials and their application as battery electrodes

Langmuir. 2008 Feb 5;24(3):906-12. doi: 10.1021/la7016424. Epub 2007 Dec 23.

Abstract

High area nickel and cobalt surfaces were assembled using modified Tobacco mosaic virus (TMV) templates. Rod-shaped TMV templates (300 x 18 nm) engineered to encode unique cysteine residues were self-assembled onto gold patterned surfaces in a vertically oriented fashion, producing a >10-fold increase in surface area. Electroless deposition of ionic metals onto surface-assembled virus templates produced uniform metal coatings up to 40 nm in thickness. Within a nickel-zinc battery system, the incorporation of virus-assembled electrode surfaces more than doubled the total electrode capacity. When combined, these findings demonstrate that surface-assembled virus templates provide a robust platform for the fabrication of oriented high surface area materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Capsid Proteins / chemistry
  • Capsid Proteins / genetics
  • Capsid Proteins / ultrastructure
  • Coated Materials, Biocompatible
  • Cobalt
  • Computer Simulation
  • Electrodes
  • Microscopy, Electron, Scanning
  • Microscopy, Electron, Transmission
  • Models, Molecular
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure*
  • Nanotechnology
  • Nickel
  • Protein Engineering
  • Tobacco Mosaic Virus / chemistry*
  • Tobacco Mosaic Virus / genetics
  • Tobacco Mosaic Virus / ultrastructure*

Substances

  • Capsid Proteins
  • Coated Materials, Biocompatible
  • Cobalt
  • Nickel