Nanoscaled tin dioxide films processed from organotin-based hybrid materials: an organometallic route toward metal oxide gas sensors

Abstract

Nanocrystalline tin dioxide (SnO(2)) ultra-thin films were obtained employing a straightforward solution-based route that involves the calcination of bridged polystannoxane films processed by the sol-gel process from bis(triprop-1-ynylstannyl)alkylene and -arylene precursors. These films have been thoroughly characterized by FTIR, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force (AFM) and scanning electron (SEM) microscopies. Annealing at a high temperature gave 30-35 nm thick cassiterite SnO(2) films with a mean crystallite size ranging from 4 to 7 nm depending on the nature of the organic linker in the distannylated compound used as a precursor. In the presence of H(2) and CO gases, these layers led to highly sensitive, reversible and reproducible responses. The sensing properties were discussed in regard to the crystallinity and porosity of the sensing body that can be tuned by the nature of the precursor employed. Organometallic chemistry combined with the sol-gel process therefore offers new possibilities toward metal oxide nanostructures for the reproducible and sensitive detection of combustible and toxic gases.

Perpendicularly oriented few-layer MoSe2on SnO2nanotubes for efficient hydrogen evolution reaction

“…[29][30][31][32][33] Interestingly, SnO 2 nanotubes composed of nanosized subunits can be facilely obtained through direct sintering of electrospun polymeric nanofibers containing SnO 2 precursors, which possess high surface area and numerous active sites. [29][30][31][32][33] Interestingly, SnO 2 nanotubes composed of nanosized subunits can be facilely obtained through direct sintering of electrospun polymeric nanofibers containing SnO 2 precursors, which possess high surface area and numerous active sites.…”

Progression in sensing cardiac troponin biomarker charge transductions on semiconducting nanomaterials

“…Tin dioxide (SnO2) is broadly utilized in the field of gas sensors [51][52][53][54][55]. Cheng et al stiffness [57] as well as their chemical properties, such as the ability to functionalize CNTs and transform their intrinsic characteristics [58,59].…”

Synthesis of polymer/rGO/SnO2 hierarchical structure and its photodegradation of organic pollutants

“…Among the binary metal oxide, tin dioxide (SnO 2 ) is a wellknown large band gap multifunctional material that found widespread applications in the fields of lithium rechargeable batteries [4], gas sensors [5][6][7], and photovoltaic conversion [8][9][10]. Because of the more positive conduction band (CB) edge, SnO 2 is a better electron acceptor than TiO 2 and ZnO [11,12] that makes it a good potential candidate in the field of photocatalysis.…”