CeO2 doped SnO2 sensor selective to ethanol in presence of CO, LPG and CH4

Pourfayaz, Fathollah; Khodadadi, Abbas Ali; Mortazavi, Yadollah; Mohajerzadeh, S.

doi:10.1016/j.snb.2004.12.107

Cited by 132 publications

(48 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many processes have been developed to the synthesis of SnO 2 nanostructures, e.g., spray pyrolysis [5], hydrothermal methods [6][7][8], evaporating tin grains in air [9], chemical vapor deposition [10], thermal evaporation of oxide powders [11], rapid oxidation of elemental tin [12], the sol-gel method [13], etc. Davar et al [14] reported the synthesis of SnO 2 nanoparticles by thermal decomposition using [bis (2- [16] synthesized nanocrystalline tin oxide powders of about 8 to 13 nm in size using different surfactants such as cetyltrimethyl ammonium bromide, sodium dodecyl sulphate, and polyethylene glycol via hydrothermal reaction at 160°C for 12 h and studied their structural and photoluminescence properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Patil¹,

Kajale

Gaikwad³

et al. 2012

Int Nano Lett

168

View full text Add to dashboard Cite

This paper demonstrates the synthesis of SnO 2 nanoparticles using a simple hydrothermal route in the presence of the surfactant hydrazine at 100°C for 12 h. X-ray diffraction (XRD), field emission scanning electron microscopy, and transmission electron microscopy (TEM) were employed to characterize the as-prepared product, and optical property was studied by UV-visible diffuse reflectance spectroscopy (DRS). The XRD pattern of the as-prepared sample is indexed to the tetragonal structure of SnO 2 , and the calculated particle size is 22.4 nm, which is further confirmed by TEM. The selected area electron diffraction patterns showed continuous ring patterns without any additional diffraction spots and rings of secondary phases, revealing their crystalline structure. Analysis of the DRS spectrum showed the bandgap of the synthesized SnO 2 to be 3.6 eV. The anionic surfactant hydrazine plays a key role in the formation of the SnO 2 nanostructures. A probable reaction for the formation of SnO 2 nanoparticles is proposed.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Patil¹,

Kajale

Gaikwad³

et al. 2012

Int Nano Lett

168

View full text Add to dashboard Cite

show abstract

“…In this connection, many processes have been developed to the synthesis of SnO 2 nanostructures, e.g. spray pyrolysis [13], hydrothermal methods [14][15][16], evaporating tin grains in air [17], chemical vapor deposition (CVD) [18], thermal evaporation of oxide powders [19], rapid oxidation of elemental tin [20] and a sol-gel method [21]. Among various methods, sol-gel is well suited for production of nanostructured materials, because of its relatively low processing cost and the ability to control the grain size.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of SnO2 nanopowders by a sol-gel process using propanol-isopropanol mixture

Hassanzadeh¹,

Moazzez²,

Haghgooie

et al. 2008

Open Chemistry

View full text Add to dashboard Cite

A simple sol-gel process is proposed for synthesizing SnO 2 nanopowders utilizing normal propanol and isopropanol mixture instead of just using normal alcohols such as ethanol, propanol or butanol for Sol preparation. No surfactant was used in this Sol preparation process. The structure of sol is studied by FT-IR-ATR technique. On altering propanol to isopropanol ratio, three different nanopowders were obtained. X-ray powder diffraction, high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction pattern (SAED) and BET techniques were used to characterize prepared powders. Results show that smaller grain size was obtained via altering alcohols ratio. In addition, Merck commercial SnO 2 powder was also used as a reference material for comparing purposes; because it has nanometer scale (ca. 60 nm). HRTEM images show that obtained nanopowders were polycrystalline and their average diameters fall into the range of 6-80 nm. Finally, the effect of alkoxide ligand size through sol-gel synthesis on product particle size is discussed.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

show abstract

“…However, some limitations, like high operating temperature, unsatisfactory selectivity, and poor long-term stability, are still needed to be further improved [16][17][18][19][20][21]. Doping modification with noble, rare-earth, and transition metals has been proved to be an effective method to improve the sensing properties of metal oxide semiconductors [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Research on Acetylene Sensing Properties and Mechanism of SnO₂Based Chemical Gas Sensor Decorated with Sm₂O₃

Zhou

Cao

et al. 2015

Journal of Nanotechnology

View full text Add to dashboard Cite

Acetylene C 2 H 2 gas is one of the most important fault characteristic hydrocarbon gases dissolved in oil immersed power transformer oil. This paper reports the successful preparation and characterization of samarium oxide Sm 2 O 3 decorated tin oxide SnO 2 based sensors with hierarchical rod structure for C 2 H 2 gas detection. Pure and Sm 2 O 3 decorated SnO 2 sensing structures were synthesized by a facile hydrothermal method and characterized by XRD, FESEM, TEM, EDS, and XPS measurements, respectively. Planar chemical gas sensors with the synthesis samples were fabricated, and their sensing performances to C 2 H 2 gas were systematically performed and automatically recorded by a CGS-1 TP intelligent gas sensing analysis system. The optimum operating temperature of the Sm 2 O 3 decorated SnO 2 based sensor towards 50 L/L of C 2 H 2 is 260 ∘ C, and its corresponding response value is 38.12, which is 6 times larger than the pure one. Its response time is about 8-10 s and 10-13 s for recovery time. Meanwhile good stability and reproducibility of the decorated sensor to C 2 H 2 gas are also obtained. Furthermore, the proposed sensor exhibits excellent C 2 H 2 selectivity among some potential interface gases, like H 2 and CO gas. All sensing results indicate the sensor fabricated with oxide Sm 2 O 3 decorated SnO 2 nanorods might be a promising candidate for C 2 H 2 detection in practice.

show abstract

CeO2 doped SnO2 sensor selective to ethanol in presence of CO, LPG and CH4

Cited by 132 publications

References 13 publications

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Synthesis of SnO2 nanopowders by a sol-gel process using propanol-isopropanol mixture

Research on Acetylene Sensing Properties and Mechanism of SnO₂Based Chemical Gas Sensor Decorated with Sm₂O₃

Contact Info

Product

Resources

About

CeO2 doped SnO2 sensor selective to ethanol in presence of CO, LPG and CH4

Cited by 132 publications

References 13 publications

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Preparation and characterization of SnO2 nanoparticles by hydrothermal route

Synthesis of SnO2 nanopowders by a sol-gel process using propanol-isopropanol mixture

Research on Acetylene Sensing Properties and Mechanism of SnO2Based Chemical Gas Sensor Decorated with Sm2O3

Contact Info

Product

Resources

About

Research on Acetylene Sensing Properties and Mechanism of SnO₂Based Chemical Gas Sensor Decorated with Sm₂O₃