Structure and chemistry of surface-doped Pt:SnO2 gas sensing materials

被引：44

作者：

Degler, David ^{[1
]}

Pereira de Carvalho, Hudson W. ^{[2
,3
]}

Kvashnina, Kristina ^{[4
,5
]}

Grunwaldt, Jan-Dierk ^{[2
]}

Weimar, Udo ^{[1
]}

Barsan, Nicolae ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys & Theoret Chem, Morgenstelle 15, D-72076 Tubingen, Germany

[2] Karlsruhe Inst Technol, Inst Chem Technol & Polymer Chem, Engesserstr 20, D-76131 Karlsruhe, Germany

[3] Univ Sao Paulo, Ctr Energia Nucl Agr, POB 96, BR-13400970 Piracicaba, SP, Brazil

[4] ESRF, BP220,6 Rue Jules Horowitz, F-38043 Grenoble, France

[5] HZDR, Inst Resource Ecol, POB 510119, D-01314 Dresden, Germany

来源：

RSC ADVANCES | 2016年 / 6卷 / 34期

关键词：

RAY-ABSORPTION SPECTROSCOPY; TIN DIOXIDE; IN-SITU; SENSOR PERFORMANCES; CO OXIDATION; SNO2; PD; ADDITIVES; MECHANISM; NANOCRYSTALS;

D O I：

10.1039/c5ra26302f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surface-doped Pt:SnO2 was synthesized by impregnation of calcined SnO2 made by an aqueous sol-gel route. The structure of the introduced Pt-dopant and its behaviour during gas exposure were examined by in situ and operando X-ray absorption spectroscopy. The results reveal that Pt forms a nano-sized PtO2 phase, which was not found for bulk and surface doped materials, studied previously. In a comparative investigation of undoped and Pt-doped SnO2 gas sensors the performance and the surface chemistry were investigated, the latter one using operando FT-IR spectroscopy. The results prove the strong influence of the different Pt structures on the surface chemistry of SnO2, providing the basis for an understanding on the varying sensor performance of differently synthesized Pt:SnO2 gas sensing materials.

引用

页码：28149 / 28155

页数：7

共 50 条

[1] Surface science studies of gas sensing materials:: SnO2
Batzill, Matthias
SENSORS, 2006, 6 (10) : 1345 - 1366
[2] Surface oxygen chemistry of a gas-sensing material:: SnO2(101)
Batzill, M
Chaka, AM
Diebold, U
EUROPHYSICS LETTERS, 2004, 65 (01): : 61 - 67
[3] Ammonia-sensing characteristics of Pt and SiO2 doped SnO2 materials
Wang, YD
Wu, XH
Su, Q
Li, YF
Zhou, ZL
SOLID-STATE ELECTRONICS, 2001, 45 (02) : 347 - 350
[4] Inverse opal structure of SnO2 and SnO2:Zn for gas sensing
Baratto, C
Faglia, G
Sberveglieri, G
Sutti, A
Calestani, G
Dionigi, C
2005 IEEE SENSORS, VOLS 1 AND 2, 2005, : 1196 - 1200
[5] One-Step Preparation of SnO2 and Pt-Doped SnO2 As Inverse Opal Thin Films for Gas Sensing
D'Arienzo, Massimiliano
Armelao, Lidia
Cacciamani, Adriana
Mari, Claudio Maria
Polizzi, Stefano
Ruffo, Riccardo
Scotti, Roberto
Testino, Andrea
Wahba, Laura
Morazzoni, Franca
CHEMISTRY OF MATERIALS, 2010, 22 (13) : 4083 - 4089
[6] Characterization of Ag Doped SnO2 for Gas Sensing Application
Ouerdane, A.
Ghaffour, M.
Hachoun, Z.
Abdelkrim, M.
Bedrouni, M.
Caudano, Y.
JOURNAL OF SURFACE SCIENCE AND TECHNOLOGY, 2018, 34 (1-2) : 66 - 73
[7] Gas Sensing Behaviour of Zn Doped SnO2 Nanostructures
Singh, Gurpreet
Kaur, Jasmeet
Singh, Ravi Chand
ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015), 2015, 1675
[8] Gas response for ethanol of SnO2 nanorods as sensing materials
Li, Yuehuan
Liu, Yongjun
Xiao, Xuechun
Kan, Huen
Zhao, Heyun
NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3, 2012, 399-401 : 727 - +
[9] Synthesis of Pt-doped SnO2 flower-like hierarchical structure and its gas sensing properties to isopropanol
Bi, Wenjie
Xiao, Wei
Liu, Shantang
JOURNAL OF MATERIALS SCIENCE, 2021, 56 (10) : 6095 - 6109
[10] Synthesis of Pt-doped SnO2 flower-like hierarchical structure and its gas sensing properties to isopropanol
Wenjie Bi
Wei Xiao
Shantang Liu
Journal of Materials Science, 2021, 56 : 6095 - 6109

← 1 2 3 4 5 →