Citation: QI Xiao-Jiao, WANG Qian, GAO Hai-Yan, LI Guo-Dong. Hollow Spindle-Shaped CuO/Cu₂(OH)₂CO₃ Nanocomposites: Synthesis and Gas Sensing Property[J]. Chinese Journal of Inorganic Chemistry, ;2015, (5): 1010-1018. doi: 10.11862/CJIC.2015.129 shu

Hollow Spindle-Shaped CuO/Cu₂(OH)₂CO₃ Nanocomposites: Synthesis and Gas Sensing Property

QI Xiao-Jiao ¹ ,
WANG Qian ¹ ,
GAO Hai-Yan ¹ ,
^1,, ,
LI Guo-Dong ²

1.
1 Tianjin Key Laboratory of Fiber Modification and Functional Fiber, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China;
2.
2 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China

Corresponding author: ,
Received Date: 26 November 2014
Available Online: 10 February 2015
Fund Project: 国家自然科学基金(No.21271138,21371070,21071060) (No.21271138,21371070,21071060)天津自然科学基金(No.14JCYBJC17500,14JCQNJC02500) (No.14JCYBJC17500,14JCQNJC02500)吉林大学无机合成与制备化学国家重点实验室开放课题(No.2015-02) (No.2015-02)国家大学生创新创业计划项目(201410058003)资助。 (201410058003)

Hollow spindle-shaped CuO/Cu₂(OH)₂CO₃ composites were fabricated via a templateless hydrothermal route with Cu₂(OH)₃NO₃ as the precursor. XRD measurements and TEM observations reveal that the as-prepared CuO/Cu₂(OH)₂CO₃ is hollow spindle-shaped with size of 1~2 μm. HRTEM image indicates that the shell of each particle is highly dispersive mixtures of nanoscale CuO and Cu₂(OH)₂CO₃. Time dependent experiments disclose that the formation of hollow spindle-shaped CuO/Cu₂(OH)₂CO₃ composites particles is driven by self-transformation and Ostwald ripening. The gas sensing performances were investigated with ethanol and acetone as the target gases. The as-prepared hollow CuO/Cu₂(OH)₂CO₃ composites exhibit improved gas sensing properties in comparison with the commercial CuO powders, which can be ascribed to the decreased grain-to-grain contacts of the highly dispersive mixtures.
- hollow particles;solvothermal synthesis;CuO;Cu₂(OH)₂CO₃;gas sensor
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Hollow Spindle-Shaped CuO/Cu₂(OH)₂CO₃ Nanocomposites: Synthesis and Gas Sensing Property