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A multifunctional nanocellulose-based hydrogel for strain sensing and self-powering applications.
- Source :
-
Carbohydrate Polymers . Sep2021, Vol. 268, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- Ionic conductive hydrogel with multifunctional properties have shown promising application potential in various fields, including electronic skin, wearable devices and sensors. Herein, a highly stretchable (up to 2800% strain), tough, adhesive ionic conductive hydrogel are prepared using cationic nanocellulose (CCNC) to disperse/stabilize graphitic carbon nitride (g-C 3 N 4), forming CCNC-g-C 3 N 4 complexes and in situ radical polymerization process. The ionic interactions between CNCC and g-C 3 N 4 acted as sacrificial bonds enabled highly stretchability of the hydrogel. The hydrogel showed high sensitivity (gauge factor≈5.6, 0–1.6% strain), enabling the detection of human body motion, speech and exhalation. Furthermore, the hydrogel based self-powered device can charge 2.2 μF capacitor up to 15 V from human motion. This multifunctional hydrogel presents potential applications in self-powered wearable electronics. [Display omitted] • A highly stretchable hydrogel is developed based on nanocomposite incorporation. • Cationic nanocellulose (CNCC) is used to disperse/stabilize C 3 N 4. • The C 3 N 4 -CNCC endows electrostatic interaction and hydrogen bonding for PAM network. • The capabilities of hydrogel as motion and temperature detection are verified. • The hydrogel derived self-powered device can charge 47uF capacitor to 15 V. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01448617
- Volume :
- 268
- Database :
- Academic Search Index
- Journal :
- Carbohydrate Polymers
- Publication Type :
- Academic Journal
- Accession number :
- 150850705
- Full Text :
- https://doi.org/10.1016/j.carbpol.2021.118210