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A New Method to Control Particle Size and Particle Size Distribution of SnO 2 Nanoparticles for Gas Sensor Applications
Author(s) -
Leite E. R.,
Weber I. T.,
Longo E.,
Varela J. A.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200006)12:13<965::aid-adma965>3.0.co;2-7
Subject(s) - materials science , nucleation , nanoparticle , particle size , nanotechnology , particle size distribution , particle (ecology) , doping , chemical engineering , optoelectronics , organic chemistry , oceanography , geology , engineering , chemistry
The controlled growth of SnO 2 nanoparticles for gas sensor applications is reported by these authors. Nb 2 O 5 additive is used to control nucleation and growth of the SnO 2 (see Figure), which is synthesized by the polymeric precursor method. Preliminary gas sensing measurements are performed and it is demonstrated that the response time of the Nb 2 O 5 ‐doped SnO 2 is faster than that of the undoped material.