Nanocrystalline SnO(2) Functionalized with Ag(I) Organometallic Complexes as Materials for Low Temperature H(2)S Detection.
Nanocrystalline SnO(2) Functionalized with Ag(I) Organometallic Complexes as Materials for Low Temperature H(2)S Detection.
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Ag（I）有机配合物修饰的SnO（2）纳米晶作为低温H（2）S检测材料
DOI：
10.3390/ma14247778
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发表时间：
2021-12-16
期刊：
影响因子：
--
通讯作者：
Rumyantseva M
中科院分区：
文献类型：
--
作者：
Goncharov T;Nasriddinov A;Zubenko A;Tokarev S;Shatalova T;Khmelevsky N;Fedorova O;Rumyantseva M
本文提出了一种比较分析的纳米SnO 2修饰Ag纳米粒子（AgNPs）作为参考样品或银有机配合物（AgL 1和AgL 2）的H2S传感器的性能。得到了基于SnO_2和Ag（I）金属有机配合物的新型杂化材料。采用X射线衍射（XRD）、X射线荧光光谱（XRF）、拉曼光谱（Raman）、傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）和热重分析（TGA）对复合材料的微观结构、组成特征和热稳定性进行了研究。对2 ppm H2S的气体传感器性能证明了对其他还原气体（H2（20 ppm）、NH3（20 ppm）和CO（20 ppm））的高灵敏度、选择性以及复合材料在低操作温度下H2S检测中的良好再现性。复合材料还显示出即使在室温下在0.12-2.00 ppm H2S的浓度范围内的线性检测范围。结果表明，影响传感器性能和低温区H2S选择性的主要因素是改性剂的结构和银的化学状态。因此，在SnO 2/AgNPs参比样品的情况下，化学敏化机理更可能，而对于SnO 2/AgL 1和SnO 2/AgL 2复合物，电子敏化机理在气敏性能中贡献更大。结果表明，纳米SnO_2和Ag（I）有机配合物复合物可提高H_2S的选择性检测。
This paper presents a comparative analysis of H2S sensor properties of nanocrystalline SnO2 modified with Ag nanoparticles (AgNPs) as reference sample or Ag organic complexes (AgL1 and AgL2). New hybrid materials based on SnO2 and Ag(I) organometallic complexes were obtained. The microstructure, compositional characteristics and thermal stability of the composites were thoroughly studied by X-ray diffraction (XRD), X-ray fluorescent spectroscopy (XRF), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and Thermogravimetric analysis (TGA). Gas sensor properties to 2 ppm H2S demonstrated high sensitivity, selectivity toward other reducing gases (H2 (20 ppm), NH3 (20 ppm) and CO (20 ppm)) and good reproducibility of the composites in H2S detection at low operating temperatures. The composite materials also showed a linear detection range in the concentration range of 0.12–2.00 ppm H2S even at room temperature. It was concluded that the predominant factors influencing the sensor properties and selectivity toward H2S in low temperature region are the structure of the modifier and the chemical state of silver. Thus, in the case of SnO2/AgNPs reference sample the chemical sensitization mechanism is more possible, while for SnO2/AgL1 and SnO2/AgL2 composites the electronic sensitization mechanism contributes more in gas sensor properties. The obtained results show that composites based on nanocrystalline SnO2 and Ag(I) organic complexes can enhance the selective detection of H2S.
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影响因子：
13.6
作者：
Li, Zhijie;Huang, Yanwu;Fu, Yongqing
通讯作者：
Fu, Yongqing
DOI：
10.1016/j.jiec.2012.06.009
发表时间：
2012-11-25
影响因子：
6.1
作者：
Do, Won Hui;Lee, Chul Jae;Jung, Maeng Joon
通讯作者：
Jung, Maeng Joon
影响因子：
4
作者：
Ferraria, Ana Maria;Carapeto, Ana Patricia;Botelho do Rego, Ana Maria
通讯作者：
Botelho do Rego, Ana Maria
影响因子：
4.4
作者：
Bruevich, V. V.;Makhmutov, T. Sh.;Paraschuk, D. Yu.
通讯作者：
Paraschuk, D. Yu.
影响因子：
4.3
作者：
Luo, Yuwei;Zhang, Dongzhi;Fan, Xin
通讯作者：
Fan, Xin