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

被引：408

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

页码：12796 / 12803

页数：8

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