Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Coaxial silver nanowire/polypyrrole nanocomposite supercapacitors
Date
2018-01-01
Author
YÜKSEL, Recep
ALPUGAN, Ece
Ünalan, Hüsnü Emrah
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
151
views
0
downloads
Cite This
Three-dimensional (3D) core-shell silver nanowire (Ag NW) -polypyrrole (PPy) nanocomposites are used for the fabrication of supercapacitors. In-situ chemical polymerization of PPy onto Ag NWs results in the formation of diameter tunable, coaxial and 3D nanocomposites. Inner Ag NW core facilitates the charge transfer and PPy shell shows a remarkably high pseudocapacitance. Fabricated Ag NW/PPy nanocomposite has a specific capacitance of 509 F g(-1) at a current density of 0.31 A g(-1), while the energy and power densities are found to be 4.27 Wh kg(-1), 60.7 W kg(-1), respectively. For these devices a capacity retention of more than 90% is obtained following 10000 cycles. It is envisaged that the 3D core-shell nanocomposite architecture investigated here can be extended to other conducting polymer and metal nanowire systems.
Subject Keywords
Silver nanowires
,
Supercapacitors
,
Electrodes
,
Pseudocapacitor
,
Nanocomposites
,
Polypyrrole
URI
https://hdl.handle.net/11511/44095
Journal
ORGANIC ELECTRONICS
DOI
https://doi.org/10.1016/j.orgel.2017.10.012
Collections
Department of Metallurgical and Materials Engineering, Article
Suggestions
OpenMETU
Core
Flexible, silver nanowire network nickel hydroxide core-shell electrodes for supercapacitors
YUKSEL, Recep; Coskun, Sahin; Kalay, Yunus Eren; Ünalan, Hüsnü Emrah (2016-10-01)
We present a novel one-dimensional coaxial architecture composed of silver nanowire (Ag NW) network core and nickel hydroxide (Ni(OH)(2)) shell for the realization of coaxial nanocomposite electrode materials for supercapacitors. Ag NWs are formed conductive networks via spray coating onto polyethylene terephthalate (PET) substrates and Ni(OH)(2) is gradually electrodeposited onto the Ag NW network to fabricate core-shell electrodes for supercapacitors. Synergy of highly conductive Ag NWs and high capacitiv...
Coaxial silver nanowire network core molybdenum oxide shell supercapacitor electrodes
Yuksel, Recep; Coskun, Sahin; Ünalan, Hüsnü Emrah (Elsevier BV, 2016-03-01)
We present a new hybrid material composed of molybdenum (IV) oxide (MoO2) shell on highly conducting silver nanowire (Ag NW) core in the network form for the realization of coaxial Ag NW/MoO2 nanocomposite supercapacitor electrodes. Ag NWs were simply spray coated onto glass substrates to form conductive networks and conformal MoO2 layer was electrodeposited onto the Ag NW network to create binder-free coaxial supercapacitor electrodes. Combination of Ag NWs and pseudocapacitive MoO2 generated an enhanced e...
Electrical, mechanical and thermal properties of aligned silver nanowire/polylactide nanocomposite films
Doğanay, Doğa; Kaynak, Cevdet; Ünalan, Hüsnü Emrah (2016-08-15)
In this work, electrically conductive silver nanowire (Ag NW) filled polylactide (PLA) nanocomposites were fabricated and characterized. Ag NWs/PLA nanocomposite films were fabricated using simple solution mixing method and casted onto glass substrates via doctor blading. Following the obtainment of free standing nanocomposites through peeling off, electrical conductivity of the fabricated nano composites, interfacial interactions between Ag NWs and PLA as well as nanocomposite morphology, degree of alignme...
Optimized spacer layer thickness for plasmonic-induced enhancement of photocurrent in a-Si:H
Saleh, Z. M.; NASSER, H; ÖZKOL, E; GÜNÖVEN, M; Abak, Musa Kurtuluş; Canlı, Sedat; Bek, Alpan; Turan, Raşit (2015-10-24)
Plasmonic interfaces consisting of silver nanoparticles of different sizes (50-100 nm) have been processed by the self-assembled dewetting technique and integrated to hydrogenated amorphous silicon (a-Si:H) using SiNx spacer layers to investigate the dependence of optical trapping enhancement on spacer layer thickness through the enhancements in photocurrent. Samples illuminated from the a-Si:H side exhibit a localized surface plasmon resonance (LSPR) that is red-shifted with the increasing particle size an...
Epoxidation of Ethylene by Silver Oxide (Ag2O) Cluster: A Density Functional Theory Study
Fellah, Mehmet Ferdi; van Santen, Rutger A.; Önal, Işık (2011-06-01)
Density functional theory (DFT) calculations were employed to study epoxidation of ethylene on a [Ag14O9] cluster model representing silver oxide (001) surface. Theoretical results obtained in this study showed that formation paths of acetaldehyde and vinyl alcohol have higher activation barriers than that of ethylene oxide formation path on silver oxide (35 and 35 vs. 20 kcal/mol). Formation of the ethylene oxometallocycle intermediate is found to have a low probability on Ag2O(001) surface. The essential ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
R. YÜKSEL, E. ALPUGAN, and H. E. Ünalan, “Coaxial silver nanowire/polypyrrole nanocomposite supercapacitors,”
ORGANIC ELECTRONICS
, pp. 272–280, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44095.