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- Title
Synthesis and Electrochemical Characterization of Nitrate-Doped Polypyrrole/Ag Nanowire Nanorods as Supercapacitors.
- Authors
Kang, Hyo-Kyung; Pyo, Ki-Hyun; Jang, Yoon-Hee; Kim, Youn-Soo; Kim, Jin-Yeol
- Abstract
Polypyrrole (PPy)-capped silver nanowire (Ag NW) nanomaterials (core–shell rod-shaped Ag NW@PPy) were synthesized using a one-port suspension polymerization technique. The thickness of the PPy layer on the 50 nm thickness/15 μm length Ag NW was effectively controlled to 10, 40, 50, and 60 nm. Thin films cast from one-dimensional conductive Ag NW@PPy formed a three-dimensional (3D) conductive porous network structure and provided excellent electrochemical performance. The 3D Ag NW@PPy network can significantly reduce the internal resistance of the electrode and maintain structural stability. As a result, a high specific capacitance of 625 F/g at a scan rate of 1 mV/s was obtained from the 3D porous Ag NW@PPy composite film. The cycling performance over a long period exceeding 10,000 cycles was also evaluated. We expect that our core–shell-structured Ag NW@PPy composites and their 3D porous structure network films can be applied as electrochemical materials for the design and manufacturing of supercapacitors and other energy storage devices.
- Subjects
POLYPYRROLE; SUPERCAPACITORS; ENERGY storage; NANOWIRES; STRUCTURAL stability; THIN films; NANORODS; CHEMICAL templates
- Publication
Materials (1996-1944), 2024, Vol 17, Issue 9, p1962
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma17091962