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

被引：411
作者：
Wang, Yiting [1 ]
Lu, Yinyun [1 ]
Zhan, Wenwen [1 ]
Xie, Zhaoxiong [1 ]
Kuang, Qin [1 ]
Zheng, Lansun [1 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 24期
基金：
中国国家自然科学基金;
关键词：
MORPHOLOGY DESIGN; HIGH-PERFORMANCE; CRYSTALS; CARBON; NANOSTRUCTURES; NANOCOMPOSITE; NANOPARTICLES; MICROSPHERES; NANORODS; GROWTH;
D O I：
10.1039/c5ta01108f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 degrees 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 m(2) g(-1)) and high capacity of surface-adsorbed oxygen of the octahedral Cu2O/CuO cages.
引用
收藏
页码：12796 / 12803
页数：8
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