Journal
ACS NANO
Volume 11, Issue 10, Pages 10337-10346Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b05213
Keywords
portable; CO2 sensing humidity calibration; force free; charge-based characterization
Categories
Funding
- National Research Foundation (NRF) CRP [R-263-000-A27-281]
- Ministry of Education (MOE) Faculty Research Committee (FRC) [R-263-000-B56-112]
- HiFES seed fund Hybrid Integration of Flexible Power Source and Power Sensors
- National Natural Science Foundation of China under at NUS (Suzhou) Research Institute, Suzhou, China [61474078]
Ask authors/readers for more resources
A water-air triboelectric nanogenerator (WATENG) is presented for CO2 sensing application. During the operation of WATENG, two independent charge transfers can be used to characterize the effect of force and humidity, respectively. Thus, the structure of WATENG provides a capability to eliminate these two major interferences in a triboelectric self-powered sensor. With the aid of the polyethylenimine (PEI) coating, WATENG can be used for CO2 sensing in both static and dynamic conditions. In static condition with a stable CO2 concentration, the CO2 sensing is characterized with respect to different relative humidity, and the sensing range can be up to 6000 ppm. In dynamic CO2 sensing of a pulse gas spray, due to the fast recovery of PEI surface reaction, the sensing range of dynamic situation can be broadened to 30,000 ppm. The self-powered and portable feature of WATENG is preferable as a self-powered amenity sensor for the construction of internet of the things (IoT) sensor networks in the future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
