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Assembly of nanoscale building blocks at solution/solid interfaces

Authors
Journal
Materials Research Bulletin
0025-5408
Publisher
Elsevier
Publication Date
Volume
45
Issue
3
Identifiers
DOI: 10.1016/j.materresbull.2009.12.009
Keywords
  • A. Nanostructures
  • A. Oxides
  • B. Semiconductors
  • B. Chemical Synthesis
  • B. Crystal Growth
Disciplines
  • Chemistry
  • Design

Abstract

Abstract A chemical strategy has been purposely designed to hierarchically assemble nanoscale building blocks at the interface of solution/solid. Typically, a solution containing precursor of one component and a metal foil as metal source of another component were employed, on the basis of proposed chemical reactions on expected interfaces. Proper reaction parameters including temperature, pH value etc. were selected to adapt both chemical reactions in solution and on the metal surface. Consequently, at the interface of solution and metal foil, two kinds of nanoscale building blocks deposited simultaneously leading to the current hierarchical assembly. This strategy has been applied to the fabrication of a series of functional materials, including Nb 2O 5/TiO 2, Nb 2O 5/LiF and ZnO/Co 3O 4. The current strategy provides a convenient one-step route to achieve complex functional structures, which may have potential applications in a variety of fields such as solar cells, Li-ion batteries, electrochemical supercapacitors, catalysts as well as chemical, gas, and bio-sensors.

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