中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Fabrication of SnO2-SnO nanocomposites with p-n heterojunctions for the low-temperature sensing of NO2 gas

文献类型:期刊论文

作者Li,Lei; Zhang,Chunmei; Chen,Wei
刊名nanoscale
出版日期2015
卷号7期号:28页码:12133-12142
关键词GRAPHENE OXIDE NANOCOMPOSITES THIN-FILMS TIN OXIDE ELECTROCATALYTIC ACTIVITY OPERATING TEMPERATURE HIGH-SENSITIVITY ETHANOL SENSOR HOLLOW SPHERES H2S DETECTION NANOSTRUCTURES
通讯作者chen,w
英文摘要in this report, the fabrication of a novel sno2-sno nanostructure with p-n heterojunctions has been achieved through a facile one-pot and low-cost hydrothermal process. the structure and properties of the nanocomposite were analyzed with x-ray techniques and electron microscopy. hrtem characterization showed that the p-n heterojunctions were formed with small n-type sno2 nanocrystals dispersed on the surface of large p-type sno crystals. compared to the single sno2-based material, a gas sensor fabricated from the sno2-sno composite exhibited an enhanced sensing performance for no2 gas detection, with a limit of detection and sensitivity of 0.1 ppm and 0.26 ppm(-1), respectively, at a relatively low operating temperature (50 degrees c). moreover, the p-n heterojunctions exhibited high sensing selectivity for no2. such a high sensing sensitivity and a low operating temperature make the sno2-sno p-n nanomaterial a promising gas sensor for practical no2 gas detection. the improved sensing response characteristics of the hybrid material could be attributed to the p-n junctions formed through the in situ growth of sno2 nanocrystals on sno nanoplates. the present study is helpful for the design of novel gas sensing materials and the development of no2 gas sensors.
收录类别SCI
语种英语
WOS记录号WOS:000357805700038
源URL[http://ir.ciac.jl.cn/handle/322003/64674]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714
Li,Lei,Zhang,Chunmei,Chen,Wei. Fabrication of SnO2-SnO nanocomposites with p-n heterojunctions for the low-temperature sensing of NO2 gas[J]. nanoscale,2015,7(28):12133-12142.
APA Li,Lei,Zhang,Chunmei,&Chen,Wei.(2015).Fabrication of SnO2-SnO nanocomposites with p-n heterojunctions for the low-temperature sensing of NO2 gas.nanoscale,7(28),12133-12142.
MLA Li,Lei,et al."Fabrication of SnO2-SnO nanocomposites with p-n heterojunctions for the low-temperature sensing of NO2 gas".nanoscale 7.28(2015):12133-12142.

入库方式: OAI收割

来源:长春应用化学研究所

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