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Hybrid Organotin and Tin Oxide-based Thin Films Processed from Alkynylorganotins: Synthesis, Characterization, and Gas Sensing Properties.

Renard, Laetitia and Brötz, Joachim and Fuess, Hartmut and Gurlo, Aleksander and Riedel, Ralf and Toupance, Thierry (2014):
Hybrid Organotin and Tin Oxide-based Thin Films Processed from Alkynylorganotins: Synthesis, Characterization, and Gas Sensing Properties.
In: ACS Applied Materials & Interfaces, 6 (19), ACS Publications, pp. 17093-17101, ISSN 1944-8244,
[Online-Edition: http://dx.doi.org/10.1021/am504723t],
[Article]

Abstract

Hydrolysis–condensation of bis(triprop-1-ynylstannyl)butylene led to nanostructured bridged polystannoxane films yielding tin dioxide thin layers upon UV-treatment or annealing in air. According to Fourier transform infrared (FTIR) spectroscopy, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) data, the films were composed of a network of aggregated “pseudo-particles”, as calcination at 600 °C is required to form cassiterite nanocrystalline SnO2 particles. In the presence of reductive gases such as H2 and CO, these films gave rise to highly sensitive, reversible, and reproducible responses. The best selectivity toward H2 was reached at 150 °C with the hybrid thin films that do not show any response to CO at 20–200 °C. On the other hand, the SnO2 films prepared at 600 °C are more sensitive to H2 than to CO with best operating temperature in the 300–350 °C range. This organometallic approach provides an entirely new class of gas-sensing materials based on a class II organic–inorganic hybrid layer, along with a new way to include organic functionality in gas sensing metal oxides.

Item Type: Article
Erschienen: 2014
Creators: Renard, Laetitia and Brötz, Joachim and Fuess, Hartmut and Gurlo, Aleksander and Riedel, Ralf and Toupance, Thierry
Title: Hybrid Organotin and Tin Oxide-based Thin Films Processed from Alkynylorganotins: Synthesis, Characterization, and Gas Sensing Properties.
Language: English
Abstract:

Hydrolysis–condensation of bis(triprop-1-ynylstannyl)butylene led to nanostructured bridged polystannoxane films yielding tin dioxide thin layers upon UV-treatment or annealing in air. According to Fourier transform infrared (FTIR) spectroscopy, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) data, the films were composed of a network of aggregated “pseudo-particles”, as calcination at 600 °C is required to form cassiterite nanocrystalline SnO2 particles. In the presence of reductive gases such as H2 and CO, these films gave rise to highly sensitive, reversible, and reproducible responses. The best selectivity toward H2 was reached at 150 °C with the hybrid thin films that do not show any response to CO at 20–200 °C. On the other hand, the SnO2 films prepared at 600 °C are more sensitive to H2 than to CO with best operating temperature in the 300–350 °C range. This organometallic approach provides an entirely new class of gas-sensing materials based on a class II organic–inorganic hybrid layer, along with a new way to include organic functionality in gas sensing metal oxides.

Journal or Publication Title: ACS Applied Materials & Interfaces
Volume: 6
Number: 19
Publisher: ACS Publications
Uncontrolled Keywords: organotins, organic−inorganic hybrid materials, tin dioxide, thin films, gas sensors
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 Nov 2014 08:30
Official URL: http://dx.doi.org/10.1021/am504723t
Identification Number: doi:10.1021/am504723t
Funders: This work was supported by the MENRT (LR fellowship), the CNRS, the Aquitaine Region (Contract no. 09002556) and the European Community (FAME Network of Excellence)., It was carried out within the framework of EMMI (European Multifunctional Material Institute).
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