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Surface Photovoltage NO Gas Sensor with Properties Dependent on the Structure of the Self‐Ordered Mesoporous Silicate Film
Author(s) -
Yamada T.,
Zhou H.S.,
Uchida H.,
Tomita M.,
Ueno Y.,
Ichino T.,
Honma I.,
Asai K.,
Katsube T.
Publication year - 2002
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(20020605)14:11<812::aid-adma812>3.0.co;2-w
Subject(s) - materials science , nanoporous , mesoporous material , silicate , surface photovoltage , hexagonal crystal system , chemical engineering , adsorption , layer (electronics) , nanotechnology , crystallography , chemistry , biochemistry , physics , quantum mechanics , spectroscopy , engineering , catalysis
NO gas sensors based on nanoporous silicate films have been synthesized and evaluated with respect to their quasicrystalline structure. Whereas in the hexagonal assembly the surface layer is impermeable, allowing gas transport only sideways, a cubic phase with 3D isotropically distributed pores is highly suitable for measuring NO concentrations in gas streams (see Figure).