Facile synthesis of hierarchical porous WO3 nanofibers having 1D nanoneedles and their functionalization with non-oxidized graphene flakes for selective detection of acetone molecules

被引：43
作者：
Choi, Seon-Jin [1 ]
Choi, Chanyong [2 ,3 ]
Kim, Sang-Joon [1 ]
Cho, Hee-Jin [1 ]
Jeon, Seokwoo [2 ,3 ]
Kim, Il-Doo [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
[3] Korea Adv Inst Sci & Technol, Graphene Res Ctr KI NanoCentury, Taejon 305701, South Korea
来源：
RSC ADVANCES | 2015年 / 5卷 / 10期
关键词：
SENSING PROPERTIES; OXIDE NANOWIRES; LUNG-CANCER; DIAGNOSIS; SENSORS; NANOSTRUCTURES; NANOPARTICLES; EXFOLIATION; COMPOSITES;
D O I：
10.1039/c4ra13791d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Multiple pore-loaded (1D) WO3 nanofibers (NFs) having 1D nanoneedle branches were successfully synthesized by polystyrenecolloid-template-assisted electrospinning followed by a two-step heat-treatment. Randomly branched WO3 nanoneedles and high porosity effectively facilitated the surface reaction with acetone molecules. In addition, the hierarchical porous WO3 NFs were further functionalized with catalytic non-oxidized graphene (NOGR) flakes, which showed dramatically improved acetone sensing performance. The results demonstrated the high potential for application in the diagnosis of diabetes by breath acetone analysis.
引用
收藏
页码：7584 / 7588
页数：5
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