State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China.
State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, China.
ACS Appl Mater Interfaces. 2016 Mar;8(10):6539-45. doi: 10.1021/acsami.6b00305. Epub 2016 Mar 4.
Novel hybrid Co3O4/SnO2 core-shell nanospheres have been effectively realized by a one-step hydrothermal, 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 core-shell nanospheres can be used as an advance function material to fabricate electrical sensing devices that may be useful as gas sensors.
新型 Co3O4/SnO2 核壳纳米球通过一步水热、无模板制备方法得到了有效实现。我们的策略涉及一种简单的制造方案，包括天然交联剂的包覆，然后是 Sn 和 Co 离子的正电荷与谷氨酸的负电荷之间的静电相互作用。与常用的块状材料相比，核壳结构使气体传感器表面具有新颖的灵活性。高效的电荷转移和独特的结构是确保高响应和快速响应速度的关键。这表明了如何将混合核壳纳米球用作先进功能材料来制造电传感器件，这些器件可能作为气体传感器有用。
