Reduced graphene oxide decorated with Fe doped SnO2 nanoparticles for humidity sensor

被引：96

作者：

Toloman, D. ^{[1
]}

Popa, A. ^{[1
]}

Stan, M. ^{[1
]}

Socaci, C. ^{[1
]}

Biris, A. R. ^{[1
]}

Katona, G. ^{[2
]}

Tudorache, F. ^{[3
,4
]}

Petrila, I. ^{[3
,4
,5
]}

Iacomi, F. ^{[6
]}

机构：

[1] Natl Inst Res & Dev Isotop & Mol Technol, 67-103 Donat St, Cluj Napoca 400293, Romania

[2] Univ Babes Bolyai, Fac Chem & Chem Engn, 11 Arany Janos St, Cluj Napoca 400028, Romania

[3] Alexandru Ioan Cuza Univ, Interdisciplinary Res Dept Field Sci, 11 Carol 1 Blvd, Iasi 7000506, Romania

[4] Alexandru Ioan Cuza Univ, RAMTECH, 11 Carol 1 Blvd, Iasi 7000506, Romania

[5] Gheorghe Asachi Tech Univ, Fac Automat Control & Comp Engn, 27 Dimitrie Mangeron St, Iasi 700050, Romania

[6] Alexandru Ioan Cuza Univ, Fac Phys, 11 Carol 1 Blvd, Iasi 7000506, Romania

来源：

APPLIED SURFACE SCIENCE | 2017年 / 402卷

关键词：

Nanoparticles; Reduced graphene oxide; Composites; Humidity sensor; GAS-SENSING PROPERTY; ELECTRICAL-PROPERTIES; FERRITE MATERIAL; WATER-VAPOR; TIN DIOXIDE; THIN-FILMS; PERFORMANCE; MICROSTRUCTURE; TEMPERATURE; FABRICATION;

D O I：

10.1016/j.apsusc.2017.01.064

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reduced graphene oxide (rGO) decorated with Fe doped SnO2 nanoparticles were fabricated via the electrostatic interaction between positively charged modified Fe-doped SnO2 oxide and negatively charged graphene oxide (GO) in the presence of poly(allylamine) hydrochloride (PAH). The decoration of rGO layers with SnO2:Fe nanoparticles was highlited by TEM microsopy. For composite sample the diffraction patterns coincide well with those of SnO2:Fe nanoparticles. The reduction of graphene oxide was evidenced using XRD and FT-IR spectroscopy. The formation of SnO2:Fe-PAH-graphene composites was confirmed by FT-IR, Raman and EPR spectroscopy. Sensitivity tests for relative humidity (RH) measurements were carried out at five different concentrations of humid air at room temperature. The prepared composite sensor exhibited a higher sensing response as compared with Fe:SnO2 nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：410 / 417

页数：8

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