The Effect of Noble Metals on Co Gas Sensing Properties of In2O3 Nanoparticles

被引：18
|
作者：
Hwang, JinAh [1 ,2 ,3 ]
Jung, Hyunsung [1 ]
Shin, Hyo-Soon [1 ]
Kim, Dae-Sung [1 ]
Kim, Dong Soo [3 ]
Ju, Byeong-Kwon [2 ]
Chun, MyoungPyo [1 ]
机构：
[1] Korea Inst Ceram Engn & Technol, Elect Convergence Mat Div, Jinju Si 660031, South Korea
[2] Korea Univ, Sch Elect Engn, Display & Nanosyst Lab, Seoul 13701, South Korea
[3] Hanbat Natl Univ, Dept Creat Convergence Engn, PEMS Res Inst, Daejeon 305719, South Korea
来源：
APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
CO gas; indium oxide; gas sensing; nanoparticles; DOPED ZNO; CATALYTIC-ACTIVITY; AU NANOPARTICLES; SENSORS; PD; OXIDATION; NANOSTRUCTURES; NANOCOMPOSITES; PERFORMANCE; MECHANISM;
D O I：
10.3390/app11114903
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Three types of In2O3 nanoparticles decorated with Au, Pd and Pt nanoparticles, respectively, were synthesized by thermal decomposition method, and the effects of metal nanoparticles on their phase, microstructure, chemical state, carrier types were investigated with XRD, SEM/TEM, and XPS. Additionally, sensing properties to CO gas, such as sensitivity, etc., were examined with sensing apparatus. Au-decorated In2O3 nanoparticles exhibited the highest sensitivity to CO gas, with S = 5.59 at a 10 ppm CO gas concentration at 50 degrees C compared to Pd or Pt-decorated In2O3 nanoparticles. This can be interpreted as a much higher adsorption of oxygen molecules on the In2O3 surface due to the high oxygen vacancies in the In2O3 lattice, which generates an electron depletion region in the outer layer of In2O3 to sharply increase the resistance or the spill-over effect due to Au nanoparticles on In2O3. Au nanoparticles were observed in the TEM images and confirmed by XPS analysis.
引用
收藏
页数：17
相关论文
共 50 条
  • [21] Hierarchical assembly of In2O3 nanoparticles on ZnO hollow nanotubes using carbon fibers as templates: Enhanced photocatalytic and gas-sensing properties
    Wei, Na
    Cui, Hongzhi
    Wang, Xinzhen
    Xie, Xiang
    Wang, Mingliang
    Zhang, Liqiang
    Tian, Jian
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 498 : 263 - 270
  • [22] Assembly of In2O3 nanoparticles decorated NiO nanosheets heterostructures and their enhanced gas sensing characteristics
    Yan, Shuang
    Song, Weinan
    Wu, Di
    Jin, Shicheng
    Dong, Shuwen
    Hao, Hongshun
    Gao, Wenyuan
    JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 896
  • [23] In2O3 Nanofibers and Nanoribbons: Preparation by Electrospinning and Their Formaldehyde Gas-Sensing Properties
    Li, Zhipeng
    Fan, Yingju
    Zhan, Jinhua
    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2010, (21) : 3348 - 3353
  • [24] Facile green synthesis of In2O3 bricks and its NO2 gas sensing properties
    Pawar, Krishna K.
    Patil, Vithoba L.
    Tarwal, Nilesh L.
    Harale, Namdev S.
    Kim, Jin H.
    Patil, Pramod S.
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 29 (17) : 14508 - 14518
  • [25] Fabrication of mesoporous In2O3 nanospheres and their ultrasensitive NO2 sensing properties
    Xiao, Binxin
    Wang, Dongxue
    Song, Shanliang
    Zhai, Chengbo
    Wang, Fei
    Zhang, Mingzhe
    SENSORS AND ACTUATORS B-CHEMICAL, 2017, 248 : 519 - 526
  • [26] Preparation and gas sensing properties of hierarchical flower-like In2O3 microspheres
    Xu, Xiumei
    Zhao, Peilu
    Wang, Dawei
    Sun, Peng
    You, Lu
    Sun, Yanfeng
    Liang, Xishuang
    Liu, Fengmin
    Chen, Hong
    Lu, Geyu
    SENSORS AND ACTUATORS B-CHEMICAL, 2013, 176 : 405 - 412
  • [27] Fabrication and gas sensing properties of In2O3 nanopushpins
    Qurashi, Ahsanulhaq
    Yamazaki, Toshinari
    El-Maghraby, E. M.
    Kikuta, Toshio
    APPLIED PHYSICS LETTERS, 2009, 95 (15)
  • [28] NO2 gas sensing responses of In2O3 nanoparticles decorated on GO nanosheets
    Shah, Sufaid
    Han, Shuai
    Hussain, Shahid
    Liu, Guiwu
    Shi, Tengfei
    Shaheen, Asma
    Xu, Ziwei
    Wang, Mingsong
    Qiao, Guanjun
    CERAMICS INTERNATIONAL, 2022, 48 (09) : 12291 - 12298
  • [29] Synthesis, Characterization, Photocatalytic Activity and Ethanol-Sensing Properties of In2O3 and Eu3+: In2O3 Nanoparticles
    Anand, Kanica
    Thangaraj, R.
    Kumar, Praveen
    Kaur, Jasmeet
    Singh, R. C.
    PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON CONDENSED MATTER PHYSICS 2014 (ICCMP 2014), 2015, 1661
  • [30] UV Effect on NO2 Sensing Properties of Nanocrystalline In2O3
    Ilin, A.
    Fantina, N.
    Martyshov, M.
    Forsh, E.
    Forsh, P.
    Kashkarov, P.
    3RD INTERNATIONAL CONFERENCE ON NANOTECHNOLOGIES AND BIOMEDICAL ENGINEERING, 2016, 55 : 340 - 344
12345