| Title: | Rationally Designed TiO(2) Nanostructures of Continuous Pore Network for Fast-Responding and Highly Sensitive Acetone Sensor |
| Author(s): | Suh JM; Cho D; Lee S; Lee TH; Jung JW; Lee J; Cho SH; Eom TH; Hong JW; Shim YS; Jeon S; Jang HW; |
| Address: | "Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea. Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea. Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea. Structural Safety & Prognosis Research Division, Korea Atomic Energy Research Institute (KAERI), Daejeon, 34057, Republic of Korea. Division of Materials Science and Engineering, Silla University, Busan, 46958, Republic of Korea. Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea" |
| ISSN/ISBN: | 2366-9608 (Electronic) 2366-9608 (Linking) |
| Abstract: | "For the last several years, indoor air quality monitoring has been a significant issue due to the increasing time portion of indoor human activities. Especially, the early detection of volatile organic compounds potentially harmful to the human body by the prolonged exposure is the primary concern for public human health, and such technology is imperatively desired. In this study, highly porous and periodic 3D TiO(2) nanostructures are designed and studied for this concern. Specifically, extremely high gas molecule accessibility throughout the whole nanostructures and precisely controlled internecks of 3D TiO(2) nanostructures can achieve an unprecedented gas response of 299 to 50 ppm CH(3) COCH(3) with an extremely fast response time of less than 1s. The systematic approach to utilize the whole inner and outer surfaces of the gas sensing materials and periodically formed internecks to localize the current paths in this study can provide highly promising perspectives to advance the development of chemoresistive gas sensors using metal oxide nanostructures for the Internet of Everything application" |
| Keywords: | Acetone/*analysis Biosensing Techniques/instrumentation/*methods Humans Nanostructures Porosity Surface Properties Titanium/*chemistry gas sensors metal oxides titanium dioxide volatile organic compounds; |
| Notes: | "MedlineSuh, Jun Min Cho, Donghwi Lee, Sangmin Lee, Tae Hyung Jung, Jae-Wook Lee, Jinho Cho, Sung Hwan Eom, Tae Hoon Hong, Jung-Wuk Shim, Young-Seok Jeon, Seokwoo Jang, Ho Won eng 2021R1A2B5B03001851/Basic Science Research Program/ 2021M3H4A3A02086430/Nano Material Technology Development Program/ NRF-2020M3D1A1110522/Creative Materials Discovery Program/ National Research Foundation of Korea/ Ministry of Science and ICT/ Multi-Ministry Collaborative R& D Program/ 2017M3D9A1073501/Development of Techniques for Identification and Analysis of Gas Molecules to Protect Against Toxic Substances/ 2021R1C1C1013296/NRF/ 21CTAP-C157556-02/Ministry of Land, Infrastructure, and Transport/ Research Support, Non-U.S. Gov't Germany 2021/12/21 Small Methods. 2021 Dec; 5(12):e2100941. doi: 10.1002/smtd.202100941. Epub 2021 Oct 15" |
