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Amorphous cellulose nanofiber supercapacitors
- Source :
- Scientific Reports, Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
- Publication Year :
- 2021
- Publisher :
- Nature Publishing Group UK, 2021.
-
Abstract
- Despite the intense interest in cellulose nanofibers (CNFs) for biomedical and engineering applications, no research findings about the electrical energy storage of CNF have been reported yet. Here, we present the first electroadsorption effects of an amorphous cellulose nanofiber (ACF) supercapacitor, which can store a large amount of electricity (221 mJm−2, 13.1 Wkg−1). The electric storage can be attributed to the entirely enhanced electroadsorption owing to a quantum-size effect by convexity of 17.9 nm, an offset effect caused by positive polar C6=O6 radicles, and an electrostatic effect by appearance of the localised electrons near the Na ions. The supercapacitor also captures both positive and negative electricity from the atmosphere and in vacuum. The supercapacitor could illuminate a red LED for 1 s after charging it with 2 mA at 10 V. Further gains might be attained by integrating CNF specimens with a nano-electromechanical system (NEMS).
- Subjects :
- 0301 basic medicine
Materials science
Science
Biophysics
02 engineering and technology
Electron
Microbiology
Article
03 medical and health sciences
chemistry.chemical_compound
Cellulose
Supercapacitor
Nanoelectromechanical systems
Multidisciplinary
021001 nanoscience & nanotechnology
Research findings
Electrical energy storage
Amorphous solid
030104 developmental biology
Chemical engineering
chemistry
Nanofiber
Medicine
0210 nano-technology
Structural biology
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....647989125bbb996fd4cace269604a5ce