Controlled synthesis of Pt and Co3O4 dual-functionalized In2O3 nanoassemblies for room temperature detection of carbon monoxide

被引：8

作者：

Chen, Kuan-Wei ^{[1
]}

Liu, Jen-Pu ^{[1
]}

Hsu, Yu-Shan ^{[1
]}

Liu, Chao-Heng ^{[1
]}

Pai, Ying-Hao ^{[1
]}

Chen, Chun-Hua ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan

来源：

NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 20期

关键词：

CO SENSING CHARACTERISTICS; GAS SENSOR; SNO2; NANOWIRES; PERFORMANCE; NANOPARTICLES; SENSITIVITY; FABRICATION; GROWTH; OXIDE; GOLD;

D O I：

10.1039/c8nj03543a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have designed and successfully synthesized innovative Pt and Co3O4 nanostructure co-decorated In2O3 nano-branches via stepwise facile chemical approaches for room-temperature CO gas sensing. The present results indicate that the combination of well-dispersed tiny Pt nanoparticles and the secondary oxide, p-type Co3O4, nanostructures with optimized fractions onto the n-type In2O3 nano-branches is an effective strategy which could lead to lowering the operating temperature to room temperature and significantly improving the sensitivity as well as the detection limit to a sub-ppm level, for meeting the requirement of advanced gas sensors for the next generation.

引用

页码：16478 / 16482

页数：5

共 49 条

[1] Co3O4/ZnO Nanocomposites: From Plasma Synthesis to Gas Sensing Applications [J].

Bekermann, D. ;

Gasparotto, A. ;

Barreca, D. ;

Maccato, C. ;

Comini, E. ;

Sada, C. ;

Sberveglieri, G. ;

Devi, A. ;

Fischer, R. A. .

ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (02) :928-934

[2] Improvement in CO sensing characteristics by decorating ZnO nanorod arrays with Pd nanoparticles and the related mechanisms [J].

Chang, Chia-Ming ;

Hon, Min-Hsiung ;

Leu, Ing-Chi .

RSC ADVANCES, 2012, 2 (06) :2469-2475

[3] High-performance H2 sensors with selectively hydrophobic micro-plate for self-aligned upload of Pd nanodots modified mesoporous In2O3 sensing-material [J].

Chen, Ying ;

Xu, Pengcheng ;

Li, Xinxin ;

Ren, Yuan ;

Deng, Yonghui .

SENSORS AND ACTUATORS B-CHEMICAL, 2018, 267 :83-92

[4] Thin-walled NiO tubes functionalized with catalytic Pt for highly selective C2H5OH sensors using electrospun fibers as a sacrificial template [J].

Cho, Nam Gyu ;

Woo, Hyung-Sik ;

Lee, Jong-Heun ;

Kim, Il-Doo .

CHEMICAL COMMUNICATIONS, 2011, 47 (40) :11300-11302

[5] Enhanced CO sensing characteristics of hierarchical and hollow In2O3 microspheres [J].

Choi, Kwon-Il ;

Kim, Hae-Ryong ;

Lee, Jong-Heun .

SENSORS AND ACTUATORS B-CHEMICAL, 2009, 138 (02) :497-503

[6]

Choi W., 2012, SENSOR ACTUAT B-CHEM, V168, P8

[7] Gold catalysts open a new general chemoselective route to synthesize oximes by hydrogenation of α,β-unsaturated nitrocompounds with H2 [J].

Corma, Avelino ;

Serna, Pedro ;

Garcia, Hermenegildo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (20) :6358-+

[8] INFLUENCE OF DRY OPERATING-CONDITIONS - OBSERVATION OF OSCILLATIONS AND LOW-TEMPERATURE CO OXIDATION OVER CO3O4 AND AU/CO3O4 CATALYSTS [J].

CUNNINGHAM, DAH ;

KOBAYASHI, T ;

KAMIJO, N ;

HARUTA, M .

CATALYSIS LETTERS, 1994, 25 (3-4) :257-264

[9] Fabrication and formaldehyde sensing performance of Fe-doped In2O3 hollow microspheres via a one-pot method [J].

Dong, Rui ;

Zhang, Luping ;

Zhu, Zhenyu ;

Yang, Jiedi ;

Gao, Xueling ;

Wang, Shurong .

CRYSTENGCOMM, 2017, 19 (03) :562-569

[10] Facile synthesis and gas sensing properties of In2O3-WO3 heterojunction nanofibersle [J].

Feng, Changhao ;

Li, Xin ;

Ma, Jian ;

Sun, Yanfeng ;

Wang, Chong ;

Sun, Peng ;

Zheng, Jie ;

Lu, Geyu .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 209 :622-629

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