Issue 24, 2015
From the journal:

Journal of Materials Chemistry A

Synthesis of porous Cu2O/CuO cages using Cu-based metal–organic frameworks as templates and their gas-sensing properties†

Yiting Wang,a   Yinyun Lü,a   Wenwen Zhan,a   Zhaoxiong Xie,a   Qin Kuang*a  and  Lansun Zhenga  

* Corresponding authors

a State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, People's Republic of China
E-mail: qkuang@xmu.edu.cn

Abstract

Shape-controllable porous, hollow metal oxide cages are attracting more and more attention due to their widespread applications. In this paper, octahedral, truncated octahedral and cubic Cu2O/CuO cages were successfully fabricated by the thermal decomposition of the polyhedral crystals of Cu-based metal–organic frameworks (Cu-MOFs) as self-sacrificial templates at 300 °C. The morphology of the Cu-MOF polyhedral precursors was well tuned by using lauric acid as the growth modulator under solvothermal conditions. Gas-sensing measurements revealed that the octahedral Cu2O/CuO cages exhibited a gas-sensing performance far better than those exhibited by truncated octahedral and cubic cages, which is attributed to the cooperative effect of the large specific surface area (150.3 m2 g−1) and high capacity of surface-adsorbed oxygen of the octahedral Cu2O/CuO cages.

Graphical abstract: Synthesis of porous Cu2O/CuO cages using Cu-based metal–organic frameworks as templates and their gas-sensing properties

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Article information

DOI
https://doi.org/10.1039/C5TA01108F
Article type
Paper
Submitted
12 Feb 2015
Accepted
03 May 2015
First published
06 May 2015

J. Mater. Chem. A, 2015,3, 12796-12803

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Synthesis of porous Cu2O/CuO cages using Cu-based metal–organic frameworks as templates and their gas-sensing properties

Y. Wang, Y. Lü, W. Zhan, Z. Xie, Q. Kuang and L. Zheng, J. Mater. Chem. A, 2015, 3, 12796 DOI: 10.1039/C5TA01108F

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