MOF-derived porous ZnO/Co3O4 nanocomposites for high performance acetone gas sensing

被引：43

作者：

Xiao, Jia ^{[1
]}

Diao, Kaidi ^{[1
]}

Zheng, Zhou ^{[1
]}

Cui, Xudong ^{[1
]}

机构：

[1] CAEP, Inst Chem Mat, Mianyang 621900, Sichuan, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 10期

关键词：

CO3O4/ZNO NANOCOMPOSITES; HIERARCHICAL STRUCTURES; HOLLOW SPHERES; SURFACE-AREA; NANOFIBERS; OXIDATION; SENSOR; FILM; NANOSTRUCTURES; NANOCRYSTALS;

D O I：

10.1007/s10854-018-8867-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report a facile strategy to synthesize porous ZnO/Co3O4 composites by direct pyrolysis of the metal-organic frameworks (MOFs) precursor and their applications to the sensing of acetone at ppb-ppm level. The as-prepared ZnO/Co3O4 sample exhibits enhanced sensitivity (15.17 ppm(-1)), high selectivity towards low-concentration acetone when compared with pure ZnO. The enhancement in gas sensing performance of ZnO/Co3O4 sample could be attributed to the unique porous structure, the p-Co3O4/n-ZnO junctions effect and the catalytic activity of Co3O4. The studies might open intriguing perspectives for the design of porous p/n composites for high performance gas sensing applications.

引用

页码：8535 / 8546

页数：12

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