Experimental and theoretical studies on noble metal decorated tin oxide flower-like nanorods with high ethanol sensing performance

被引:69
作者
Kaneti, Yusuf V. [1 ]
Yue, Jeffrey [2 ]
Moriceau, Julien [3 ]
Chen, Chuyang [1 ]
Liu, Minsu [4 ]
Yuan, Yuan [1 ]
Jiang, Xuchuan [4 ]
Yu, Aibing [1 ,4 ]
机构
[1] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
[2] UCL, Dept Chem Engn, London WC1E 7JE, England
[3] Inst Natl Sci Appl, Dept Mat Sci & Engn, F-69621 Villeurbanne, France
[4] Monash Univ, Dept Chem Engn, Melbourne, Vic 3800, Australia
基金
澳大利亚研究理事会;
关键词
Tin oxide; Gas sensing; Nanorods; Noble metals; Molecular dynamics simulation; SNO2; NANOWIRES; AB-INITIO; HYDROTHERMAL SYNTHESIS; MOLECULAR-DYNAMICS; FORCE-FIELD; GAS; ADSORPTION; SENSOR; NANOSTRUCTURES; SNO2(110);
D O I
10.1016/j.snb.2015.04.136
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This study reports a facile solvothermal method for the synthesis of tin oxide (SnO2) flower-like nanorods with dominant (1 1 0) crystal surface, which could be further decorated with varying amounts of noble metals, (gold (Au) and palladium (Pd)) to enhance the gas-sensing properties. Analysis of the gas-sensing results reveal that the decoration of Au and Pd nanoparticles on the surface of the SnO2 nanorods is advantageous in: (i) enhancing the sensitivity towards ethanol (9-15 times); (ii) reducing the response/recovery time (by 15-40s), and (iii) significantly decreasing the optimum operating temperature (from 250 to 175 degrees C). Beyond physical experiments, molecular dynamics (MD) method was also conducted to quantify diffusivity, adsorption and reaction capabilities of ethanol on SnO2(1 1 0) plane and to better understand the role of noble metals in enhancing the gas-sensing performance of SnO2. The findings in this study will be useful for future design of metal oxide nanocomposites with specific crystal surface for achieving high performance in surface-governed applications. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:83 / 93
页数:11
相关论文
共 48 条
[1]   Comparisons of multilayer H2O adsorption onto the (110) surfaces of α-TiO2 and SnO2 as calculated with density functional theory [J].
Bandura, Andrei V. ;
Kubicki, James D. ;
Sofo, Jorge O. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (37) :11616-11624
[2]   Karl Jug's 65th birthday [J].
Bredow, T ;
Heidberg, J .
THEORETICAL CHEMISTRY ACCOUNTS, 2005, 114 (1-3) :2-3
[3]   Diffusion of gases in silicone polymers: Molecular dynamics simulations [J].
Charati, SG ;
Stern, SA .
MACROMOLECULES, 1998, 31 (16) :5529-5535
[4]   Linear ethanol sensing of SnO2 nanorods with extremely high sensitivity [J].
Chen, YJ ;
Nie, L ;
Xue, XY ;
Wang, YG ;
Wang, TH .
APPLIED PHYSICS LETTERS, 2006, 88 (08)
[5]   Oxide materials for development of integrated gas sensors - A comprehensive review [J].
Eranna, G ;
Joshi, BC ;
Runthala, DP ;
Gupta, RP .
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES, 2004, 29 (3-4) :111-188
[6]   Controlled synthesis of SnO2 nanostructures with different morphologies and the influence on photocatalysis properties [J].
Guan, Mengmeng ;
Zhao, Xiaoru ;
Duan, Libing ;
Cao, Mengmeng ;
Guo, Wenrui ;
Liu, Jinru ;
Zhang, Wei .
JOURNAL OF APPLIED PHYSICS, 2013, 114 (11)
[7]   Band-edge engineered hybrid structures for dye-sensitized solar cells based on SnO2 nanowires [J].
Gubbala, Suresh ;
Chakrapani, Vidhya ;
Kumar, Vivekanand ;
Sunkara, Mahendra K. .
ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (16) :2411-2418
[8]   Synthesis of Tin Dioxide Octahedral Nanoparticles with Exposed High-Energy {221} Facets and Enhanced Gas-Sensing Properties [J].
Han, Xiguang ;
Jin, Mingshang ;
Xie, Shuifen ;
Kuang, Qin ;
Jiang, Zhiyuan ;
Jiang, Yaqi ;
Xie, Zhaoxiong ;
Zheng, Lansun .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (48) :9180-9183
[9]   Facile Control of C2H5OH Sensing Characteristics by Decorating Discrete Ag Nanoclusters on SnO2 Nanowire Networks [J].
Hwang, In-Sung ;
Choi, Joong-Ki ;
Woo, Hyung-Sik ;
Kim, Sun-Jung ;
Jung, Se-Yeon ;
Seong, Tae-Yeon ;
Kim, Il-Doo ;
Lee, Jong-Heun .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (08) :3140-3145
[10]   Synthesis and gas sensing characteristics of highly crystalline ZnO-SnO2 core-shell nanowires [J].
Hwang, In-Sung ;
Kim, Sun-Jung ;
Choi, Joong-Ki ;
Choi, Jaewan ;
Ji, Hyunjin ;
Kim, Gyu-Tae ;
Cao, Guozhong ;
Lee, Jong-Heun .
SENSORS AND ACTUATORS B-CHEMICAL, 2010, 148 (02) :595-600