Synthesis of polyhedron hollow structure Cu2O and their gas-sensing properties

被引：60

作者：

Sui, Yongming ^{[1
]}

Zeng, Yi ^{[1
]}

Zheng, Weitao ^{[1
]}

Liu, Bingbing ^{[1
]}

Zou, Bo ^{[1
]}

Yang, Haibin ^{[1
]}

机构：

[1] Jilin Univ, Dept Mat Sci, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 171卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

PHSs Cu2O; In situ oxidative etching; Ethanol; Gas sensor; ONE-POT SYNTHESIS; NANOCAGES; NANOSTRUCTURES; NANOFRAMES; SURFACE;

D O I：

10.1016/j.snb.2012.01.069

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Well-defined polyhedral hollow structures (PHSs) Cu2O with hollow interior and high geometrical symmetry are successfully prepared via a novel in situ oxidative etching method at room temperature. X-ray power diffraction (XRD), field-emission scanning electron microscope (FESEM), and high-resolution transmission electron microscopy (HRTEM) techniques were employed to elaborately characterize the structure and morphology of the as-prepared samples. These PHSs Cu2O with hollow interiors and open "window" show effective-applied and good-diffusion structure for the gas-sensing application, which will exhibit short good response, response/recovery times and good reproducibility to ethanol. It is found that type-I nanocages Cu2O have a response of 8.6-50 ppm ethanol at the optimal operating temperature of 210 degrees C and the response time is within 23.7s. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：135 / 140

页数：6

共 27 条

[1] Gas-phase-dependent properties of SnO2 (110), (100), and (101) single-crystal surfaces:: Structure, composition, and electronic properties -: art. no. 165414 [J].

Batzill, M ;

Katsiev, K ;

Burst, JM ;

Diebold, U ;

Chaka, AM ;

Delley, B .

PHYSICAL REVIEW B, 2005, 72 (16)

[2] Surface science studies of gas sensing materials:: SnO2 [J].

Batzill, Matthias .

SENSORS, 2006, 6 (10) :1345-1366

[3] Ordered porous materials for emerging applications [J].

Davis, ME .

NATURE, 2002, 417 (6891) :813-821

[4] Systematic design of pore size and functionality in isoreticular MOFs and their application in methane storage [J].

Eddaoudi, M ;

Kim, J ;

Rosi, N ;

Vodak, D ;

Wachter, J ;

O'Keeffe, M ;

Yaghi, OM .

SCIENCE, 2002, 295 (5554) :469-472

[5] Variations in I-V characteristics of oxide semiconductors induced by oxidizing gases [J].

Egashira, M ;

Shimizu, Y ;

Takao, Y ;

Sako, S .

SENSORS AND ACTUATORS B-CHEMICAL, 1996, 35 (1-3) :62-67

[6] Preparation and gas sensitive properties of ZnO-CuO nanocomposites [J].

Fan Hui-Tao ;

Zeng Yi ;

Yang Hai-Bin ;

Meng Xue-Jun ;

Liu Li ;

Mang Tong .

ACTA PHYSICO-CHIMICA SINICA, 2008, 24 (07) :1292-1296

[7] Contact-controlled sensing properties of flowerlike ZnO nanostructures [J].

Feng, P ;

Wan, Q ;

Wang, TH .

APPLIED PHYSICS LETTERS, 2005, 87 (21) :1-3

[8] Preparation and gas-sensing properties of thermally stable mesoporous SnO2 [J].

Hyodo, T ;

Nishida, N ;

Shimizu, Y ;

Egashira, M .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 83 (1-3) :209-215

[9] Ultrasensitive chemiresistors based on electrospun TiO2 nanofibers [J].

Kim, Il-Doo ;

Rothschild, Avner ;

Lee, Byong Hong ;

Kim, Dong Young ;

Jo, Seong Mu ;

Tuller, Harry L. .

NANO LETTERS, 2006, 6 (09) :2009-2013

[10] Fabrication of truncated rhombic dodecahedral Cu2O nanocages and nanoframes by particle aggregation and acidic etching [J].

Kuo, Chun-Hong ;

Huang, Michael H. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (38) :12815-12820

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