Hydrothermal growth of symmetrical ZnO nanorod arrays on nanosheets for gas sensing applications

被引：11

作者：

Zhao, Wenyan ^{[1
]}

Tian, Chuanjin ^{[1
]}

Xie, Zhipeng ^{[2
]}

Wang, Changan ^{[2
]}

Fu, Wuyou ^{[3
]}

Yang, Haibin ^{[3
]}

机构：

[1] Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333403, Peoples R China

[2] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[3] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China

来源：

FRONTIERS OF MATERIALS SCIENCE | 2017年 / 11卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ZnO nanorods; hydrothermal growth; gas sensitivity; NANOWIRE ARRAYS; ZINC-OXIDE; THIN-FILM; SENSORS; STABILITY; SIZE;

D O I：

10.1007/s11706-017-0393-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hierarchical ZnO nanostructures with 2-fold symmetrical nanorod arrays on zinc aluminum carbonate (ZnAl-CO3) nanosheets have been successfully synthesized through a two-step hydrothermal process. The primary nanosheets, which serve as the lattice-matched substrate for the self-assembly nanorod arrays at the second-step of the hydrothermal route, have been synthesized by using a template of anodic aluminum oxide (AAO). The as-prepared samples were characterized by XRD, FESEM, TEM and SAED. The nanorods have a diameter of about 100 nm and a length of about 2 mu m. A growth mechanism was proposed according to the experimental results. The gas sensor fabricated from ZnO nanorod arrays showed a high sensitivity to ethanol at 230 degrees C. In addition, the response mechanism of the sensors has also been discussed according to the transient response of the gas sensors.

引用

页码：271 / 275

页数：5

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