ZnO Rods with Exposed {100} Facets Grown via a Self-Catalyzed Vapor-Solid Mechanism and Their Photocatalytic and Gas Sensing Properties

We present a new method for vapor deposition of columnar ZnO structures in the form of rods on various substrates without the need for substrate modification with catalyst seed particles and at relatively low temperatures compared to other vapor deposition methods. These structures are used for the...

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Detalhes bibliográficos
Autores: Vallejos, Stella, Pizúrová, Naděžda, Gràcia Tortadès, Isabel, Sotelo-Vazquez, Carlos, Čechal, Jan, Blackman, Chris, Parkin, Ivan, Cané, Carles
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/345732
Acesso em linha:http://hdl.handle.net/10261/345732
https://api.elsevier.com/content/abstract/scopus_id/85003013485
Access Level:acceso abierto
Palavra-chave:AACVD
ZnO
gas sensing
photocatalysis
rods
Descrição
Resumo:We present a new method for vapor deposition of columnar ZnO structures in the form of rods on various substrates without the need for substrate modification with catalyst seed particles and at relatively low temperatures compared to other vapor deposition methods. These structures are used for the photodegradation of stearic acid (C18H36O2) and the photoactivated detection of gases such as carbon monoxide (CO), ethanol (C2H6O), toluene (C7H8), and nitrogen dioxide (NO2) at room temperature, showing improved selectivity compared to tests performed in themoactivated mode.