ZnO Nanosheets Abundant in Oxygen Vacancies Derived from Metal‐Organic Frameworks for ppb‐Level Gas Sensing
National University of Singapore · Agency for Science, Technology and Research · +5 more institutions
Abstract
Surmounting the inhomogeniety issue of gas sensors and realizing their reproducible ppb-level gas sensing are highly desirable for widespread deployments of sensors to build networks in applications of industrial safety and indoor/outdoor air quality monitoring. Herein, a strategy is proposed to substantially improve the surface homogeneity of sensing materials and gas sensing performance via chip-level pyrolysis of as-grown ZIF-L (ZIF stands for zeolitic imidazolate framework) films to porous and hierarchical zinc oxide (ZnO) nanosheets. A novel approach to generate adjustable oxygen vacancies is demonstrated, through which the electronic structure of sensing materials can be fine-tuned. Their presence is…
Citation impact
- FWCI
- 32.81
- Percentile
- 100%
- References
- 26
Authors
13- HYHongye Yuan
National University of Singapore
- SASaif Abdulla Ali Alateeqi Aljneibi
Agency for Science, Technology and Research, Institute of Microelectronics, Institute of Materials Research and Engineering
- JYJiaren Yuan
Nanjing University of Aeronautics and Astronautics
- YWYuxiang Wang
National University of Singapore
- HLHui Liu
National Metrology Centre
Topics & keywords
- Materials science
- Nanotechnology
- Metal-organic framework
- Mesoporous material
- Imidazolate
- Adsorption
- Chemical engineering
- Catalysis