期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 10, 页码 6539-6545出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b00305
关键词
hybrid structure; Co3O4/SnO2; core-shell nanospheres; porous structure; fast response time; gas sensors
资金
- Postdoctoral Science Foundation of China [2015M571361]
- Natural Science Foundation Committee [51502110, 61504136]
Novel hybrid Co3O4/SnO2 core shell nano spheres have been effectively realized by a one-step hydro thermal, template-free preparation-method. Our strategy involves a simple fabrication scheme that entails the. coating of natural cross-link agents followed by electrostatic interaction between the positive charges of Sn and Co ions and the negative charge of glutamic,acid. The core-shell architecture enables novel flexibility of gas sensor surfaces compared to commonly used bulk materials. The highly efficient charge transfer and unique structure are key to ensuring the availability of high response and rapid-response speed.. It demonstrates how hybrid cote shell nanospheres can be used as an advance function-material to fabricate electrical-sensing devices that may be useful as gas sensors.
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