Show simple item record

AuthorXiao X.
AuthorLiu L.
AuthorMa J.
AuthorRen Y.
AuthorCheng X.
AuthorZhu Y.
AuthorZhao D.
AuthorElzatahry A.A.
AuthorAlghamdi A.
AuthorDeng Y.
Available date2020-02-05T08:53:36Z
Publication Date2018
Publication NameACS applied materials & interfaces
ResourceScopus
ISSN19448252
URIhttp://dx.doi.org/10.1021/acsami.7b18830
URIhttp://hdl.handle.net/10576/12759
AbstractOwing to their distinct chemical and physical properties, mesoporous metal oxide semiconductors have shown great application potential in catalysis, electrochemistry, energy conversion, and energy storage. In this study, mesoporous crystalline SnO2 materials have been synthesized through an evaporation-induced co-assembly (EICA) method using poly(ethylene oxide)-b-polystyrene diblock copolymers as the template, tin chlorides as the tin sources, and tetrahydrofuran as the solvent. By controlling conditions of the co-assembly process and employing a carbon-supported thermal treatment strategy, highly ordered mesoporous SnO2 materials with a hexagonal mesostructure (space group P63/mmc) and crystalline pore walls can be obtained. The mesoporous SnO2 is employed for fabricating gas sensor nanodevices which exhibit an excellent sensing performance toward H2S with high sensitivity (170, 50 ppm) and superior stability, owing to its high surface area (98 m2/g), well-connected mesopores of ca. 18.0 nm, and high density of active sites in the crystalline pore walls. The chemical mechanism study reveals that both SO2 and SnS2 are generated during the gas sensing process on the SnO2-based sensors.
Languageen
PublisherNLM (Medline)
Subjectblock copolymer
gas sensing
hydrogen disulfides
mesoporous materials
tin oxides
TitleOrdered Mesoporous Tin Oxide Semiconductors with Large Pores and Crystallized Walls for High-Performance Gas Sensing
TypeArticle
Pagination1871-1880
Issue Number2
Volume Number10


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record