The hierarchical undoped and Cd-doped SnO2 nanostructures had been synthesized via a low-cost and environmentally friendly hydrothermal route. The morphology and structure of the as-prepared product were characterized by X-ray diffraction (XRD), field-emission electron microscopy (FESEM), and transmission electron microscopy (TEM). The images of field-emission electron microscopy and transmission electron microscopy showed that pure and Cd-doped SnO2 hierarchical architectures were built from one-dimensional nanorods. X-ray diffraction (XRD) of the doped samples revealed that Cd incorporation led to lattice deformation without destroying the original crystal structure. Gas sensors based on undoped and Cd-doped SnO2 nanorods were fabricated, and their gas sensing properties were tested for various gases. The 3.0 wt% Cd-doped SnO2 based sensor showed excellent selectivity toward H2S at the operating temperature 275 degrees C, giving a response of about 31-10 ppm, which was about 22 times higher than that of sensor based on pure SnO2. (C) 2013 Elsevier B.V. All rights reserved.
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Ctr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
FEI Univ Ctr, Dept Met & Mat Engn, Sao Bernardo Do Campo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Castro, Ricardo H. R.
Hidalgo, Pilar
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EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Hidalgo, Pilar
Perez, Henrique E. M.
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EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, Brazil
Microelect Lab SIM LME, Integrable Sensors & Microsyst Grp, Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Perez, Henrique E. M.
Ramirez-Fernandez, F. J.
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EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, Brazil
Univ Sao Paulo, Escola Politecn, BR-05508 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Ramirez-Fernandez, F. J.
Gouvea, Douglas
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EPSUP, Dept Met & Mat Engn, BR-05508900 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Dayan, NJ
Sainkar, SR
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机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Sainkar, SR
Karekar, RN
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机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Karekar, RN
Aiyer, RC
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Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, IndiaUniv Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
机构:
Ctr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
FEI Univ Ctr, Dept Met & Mat Engn, Sao Bernardo Do Campo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Castro, Ricardo H. R.
Hidalgo, Pilar
论文数: 0引用数: 0
h-index: 0
机构:
EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Hidalgo, Pilar
Perez, Henrique E. M.
论文数: 0引用数: 0
h-index: 0
机构:
EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, Brazil
Microelect Lab SIM LME, Integrable Sensors & Microsyst Grp, Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Perez, Henrique E. M.
Ramirez-Fernandez, F. J.
论文数: 0引用数: 0
h-index: 0
机构:
EPSUP, Dept Elect Syst Engn, BR-05508900 Sao Paulo, Brazil
Univ Sao Paulo, Escola Politecn, BR-05508 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
Ramirez-Fernandez, F. J.
Gouvea, Douglas
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h-index: 0
机构:
EPSUP, Dept Met & Mat Engn, BR-05508900 Sao Paulo, BrazilCtr Univ FEI, Dept Mat Engn, BR-09850901 Sao Bernardo, SP, Brazil
机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Dayan, NJ
Sainkar, SR
论文数: 0引用数: 0
h-index: 0
机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Sainkar, SR
Karekar, RN
论文数: 0引用数: 0
h-index: 0
机构:Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
Karekar, RN
Aiyer, RC
论文数: 0引用数: 0
h-index: 0
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Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, IndiaUniv Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India