Solution Processed TiO2 Nanotubular Core with Polypyrrole Conducting Polymer Shell Structures for Supercapacitor Energy Storage Devices

2013 ◽  
Vol 1547 ◽  
pp. 69-74 ◽  
Author(s):  
Navjot K. Sidhu ◽  
Ratheesh R. Thankalekshmi ◽  
A.C. Rastogi
Keyword(s):  
Energy Storage ◽  
Conducting Polymer ◽  
Electrochemical Impedance ◽  
Wall Structure ◽  
Energy Storage Devices ◽  
Polymer Shell ◽  
One Dimensional ◽  
Storage Devices ◽  
Supercapacitor Energy Storage ◽  
Tube Structure

ABSTRACTOrdered one dimensional polypyrrole conducting polymer structure as a shell over TiO2 nanotube arrays at the core were formed by pulsed current electropolymerization. TiO2 nanotubes with rippled wall structure are designed by action of water in the anodizing medium. This provides open tube structure supporting short diffusion length and increased accessibility of ions involved in redox transition for energy storage. Electrochemical properties evaluated by cyclic voltammetry and electrochemical impedance spectroscopy show specific capacitance of 34-44 mF.cm-2 and extremely low bulk and charge transfer resistances.

scholarly journals Tailoring the supercapacitive performances of noble metal oxides, porous carbons and their composites

2013 ◽  
Vol 78 (12) ◽  
pp. 2141-2164 ◽  
Author(s):  
Vladimir Panic ◽  
Aleksandar Dekanski ◽  
Branislav Nikolic
Keyword(s):  
Energy Storage ◽  
Metal Oxides ◽  
Noble Metal ◽  
Electrochemical Impedance ◽  
Depth Profiling ◽  
Thin Layers ◽  
Energy Storage Devices ◽  
Capacitive Energy Storage ◽  
Storage Devices ◽  
Noble Metal Oxides

Porous electrochemical supercapacitive materials, as an important type of new-generation energy storage devices, require a detailed analysis and knowledge of their capacitive performances upon different charging/discharging regimes. The investigation of the responses to dynamic perturbations of typical representatives, noble metal oxides, carbonaceous materials and RuO2-impregnated carbon blacks, by electrochemical impedance spectroscopy (EIS) is presented. This presentation follows a brief description of supercapacitive behavior and origin of pseudocapacitive response of noble metal oxides. For all investigated materials, the electrical charging/discharging equivalent of the EIS response was found to obey the transmission line model envisaged as so-called ?resistor/capacitor (RC) ladder?. The ladder features are correlated to material physicochemical properties, its composition and the composition of the electrolyte. Fitting of the EIS data of different supercapacitive materials to appropriate RC ladders enables the in-depth profiling of the capacitance and pore resistance of their porous thin-layers and finally the complete revelation of capacitive energy storage issues.

A brief review on supercapacitor energy storage devices and utilization of natural carbon resources as their electrode materials

Fuel ◽  
2020 ◽  
Vol 282 ◽  
pp. 118796 ◽  
Author(s):  
Binoy K. Saikia ◽  
Santhi Maria Benoy ◽  
Mousumi Bora ◽  
Joyshil Tamuly ◽  
Mayank Pandey ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supercapacitor Energy Storage ◽  
Natural Carbon

In situ growth of Cu(OH)2@FeOOH nanotube arrays on catalytically deposited Cu current collector patterns for high-performance flexible in-plane micro-sized energy storage devices

2019 ◽  
Vol 12 (1) ◽  
pp. 194-205 ◽  
Author(s):  
Jin-Qi Xie ◽  
Ya-Qiang Ji ◽  
Jia-Hui Kang ◽  
Jia-Li Sheng ◽  
Da-Sha Mao ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Current Collector ◽  
Nanotube Arrays ◽  
In Situ Growth ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supercapacitor Energy Storage ◽  
Cu Current Collector

Rationally designed interdigitated electrodes based on Cu(OH)2@FeOOH nanotube arrays are facilely converted in situ from catalytically deposited Cu current collector patterns for high-performance flexible micro-supercapacitor energy storage devices.

scholarly journals A Green Synthesis of Grpahene Based Composite for Energy Storage Application

2019 ◽  
Vol 8 (6S4) ◽  
pp. 393-396
Keyword(s):  
Energy Storage ◽  
Electrochemical Impedance ◽  
Synthesis Method ◽  
Electrochemical Performances ◽  
Composite Electrodes ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Capacitive Properties ◽  
High Specific Energy ◽  
Technological Platform

In this study, graphene-molybdenum oxide composite materials were prepared via green hydrothermal synthesis method and evaluated as supercapacitor electrodes. The morphology and structure of the composite were examined by using Scanning Electron Microscopy (SEM), Raman spectroscopy. The electrochemical performances of the composite were evaluated by cyclic voltammetry (CV), galvanostatic chargedischarge (CD) method, and electrochemical impedance spectroscopy (EIS). The electrochemical results show that the composite electrodes possess improved specific capacitance of 122 F/g at a scan rate of 5 mV/s, which is about 22% higher that of pure graphene. Additionally, the composite electrodes exhibit good capacitive properties and a high specific energy with superior capacitive retention after 1000 cycles. In contrast to the previously reported systems that are usually complicated and costly, the present work potentially provides a readily scalable technological platform for economic mass production of energy storage devices.

Flexible One-Dimensional Zn-Based Electrochemical Energy Storage Devices: Recent Progress and Future Perspectives

2021 ◽  
Author(s):  
Shengli Zhai ◽  
Zhuosheng Jiang ◽  
Xun Cai Chen ◽  
K. N. Hui ◽  
Fuming Chen
Keyword(s):  
Energy Storage ◽  
Electrochemical Energy Storage ◽  
Wearable Electronics ◽  
Future Perspectives ◽  
Energy Storage Devices ◽  
Promising Candidate ◽  
One Dimensional ◽  
Storage Devices ◽  
Good Energy ◽  
Electrochemical Energy

One-dimensional (1D) Zn-based electrochemical energy storage devices (1DZESDs) stand out as a promising candidate in recent years to power wearable electronics due to their unique features, such as good energy...

Synthesis and Electrochemical Properties of Polypyrrole Conducting Polymer in Sheath like Nanotube Arrays Structured over TiO2 for Supercapacitor Energy Storage Devices

2015 ◽  
Vol 1749 ◽  
Author(s):  
Navjot K. Sidhu ◽  
A.C. Rastogi
Keyword(s):  
Energy Storage ◽  
Electrochemical Properties ◽  
Electrochemical Impedance ◽  
Charge Transfer Resistance ◽  
Nanotube Arrays ◽  
Energy Storage Devices ◽  
Transfer Resistance ◽  
Capacitance Density ◽  
Electrically Conducting ◽  
Supercapacitor Energy Storage

ABSTRACTThe vertical TiO2 nanotube arrays constituting the core of 3-D nanoscale electrode architecture were synthesized over Ti sheet by anodization. Such formed TiO2 nanotubes are electrically conducting and amorphous as confirmed by XRD studies. Nanotube morphology is affected by water content and in the present study, close-packed 3-4 μm long TiO2 nanotube arrays of 45-50 nm diameter are formed with 2% water as revealed by the transmission and scanning electron microscopy. The redox active polypyrrole sheath is created by ultra-short pulsed current electropolymerization. Electrochemical properties of the 3-D nanoscaled TiO2 nanotube core-polypyrrole sheath electrodes relevant to the energy storage were investigated using cyclic voltammetry (CV) plots, electrochemical impedance spectroscopy (EIS), Charge discharge (CD) tests. High areal capacitance density of 48 mF cm-2 and low charge transfer resistance 12 Ω cm-2 with least ion diffusion limitation are realized at optimized polypyrrole sheath thickness. The Raman spectra studies reveal anion at specific chain locations involve in the redox process.

Biomass applied in supercapacitor energy storage devices

2020 ◽  
Vol 56 (3) ◽  
pp. 1943-1979 ◽  
Author(s):  
Shiying Lin ◽  
Feijun Wang ◽  
Ziqiang Shao
Keyword(s):  
Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supercapacitor Energy Storage

scholarly journals Electrical and Capacitive Response of Hydrogel Solid-Like Electrolytes for Supercapacitors

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1337
Author(s):  
Guillem Ruano ◽  
José I. Iribarren ◽  
Maria M. Pérez-Madrigal ◽  
Juan Torras ◽  
Carlos Alemán
Keyword(s):  
Energy Storage ◽  
Solid Electrolyte ◽  
Electrochemical Impedance ◽  
Design Feature ◽  
Wearable Electronics ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Deformation Features ◽  
Semi Solid ◽  
Conductive Hydrogels

Flexible hydrogels are attracting significant interest as solid-like electrolytes for energy storage devices, especially for supercapacitors, because of their lightweight and anti-deformation features. Here, we present a comparative study of four ionic conductive hydrogels derived from biopolymers and doped with 0.1 M NaCl. More specifically, such hydrogels are constituted by κ-carrageenan (κC), carboxymethyl cellulose (CMC), poly-γ-glutamic acid (PGGA) or a phenylalanine-containing polyesteramide (PEA). After examining the morphology and the swelling ratio of the four hydrogels, which varies between 483% and 2356%, their electrical and capacitive behaviors were examined using electrochemical impedance spectroscopy. Measurements were conducted on devices where a hydrogel film was sandwiched between two identical poly(3,4-ethylenedioxythiophene) electrodes. The bulk conductivity of the prepared doped hydrogels is 76, 48, 36 and 34 mS/cm for PEA, PGGA, κC and CMC, respectively. Overall, the polyesteramide hydrogel exhibits the most adequate properties (i.e., low electrical resistance and high capacitance) to be used as semi-solid electrolyte for supercapacitors, which has been attributed to its distinctive structure based on the homogeneous and abundant distribution of both micro- and nanopores. Indeed, the morphology of the polyestermide hydrogel reduces the hydrogel resistance, enhances the transport of ions, and results in a better interfacial contact between the electrodes and solid electrolyte. The correlation between the supercapacitor performance and the hydrogel porous morphology is presented as an important design feature for the next generation of light and flexible energy storage devices for wearable electronics.

scholarly journals 3D-Printed Highly Stretchable Conducting Polymer Electrodes for Flexible Supercapacitors

2021 ◽  
Author(s):  
Jiayu Yang ◽  
Qinghe Cao ◽  
Xiaowan Tang ◽  
Xi Xu ◽  
Tao Yu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Conducting Polymer ◽  
Electronic Devices ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Flexible Supercapacitors ◽  
Recent Advances ◽  
Polymer Electrodes ◽  
Highly Stretchable ◽  
3D Printed

Recent advances in the development of wearable, implantable, and bio-integrated electronic devices have increased the demand for stretchable and flexible energy storage devices that can deliver high degrees of mechanical...

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