scholarly journals Chemical Simultaneous Synthesis Strategy of Two Nitrogen-Rich Carbon Nanomaterials for All-Solid-State Symmetric Supercapacitor

ACS Omega ◽  
2018 ◽  
Vol 3 (12) ◽  
pp. 17276-17286 ◽  
Author(s):  
Rashmi Chandrabhan Shende ◽  
Manoharan Muruganathan ◽  
Hiroshi Mizuta ◽  
Masashi Akabori ◽  
Ramaprabhu Sundara
Keyword(s):  
Solid State ◽  
Carbon Nanomaterials ◽  
Synthesis Strategy ◽  
Symmetric Supercapacitor ◽  
Simultaneous Synthesis

scholarly journals Facile, Scalable, Eco-Friendly Fabrication of High-Performance Flexible All-Solid-State Supercapacitors

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1247 ◽  
Author(s):  
Jincy Jyothibasu ◽  
Rong-Ho Lee
Keyword(s):  
Solid State ◽  
High Performance ◽  
Low Cost ◽  
Hollow Structure ◽  
Current Collector ◽  
Supercapacitor Electrode ◽  
Filtration Method ◽  
Synthesis Strategy ◽  
Symmetric Supercapacitor ◽  
Scan Rate

A highly porous freestanding supercapacitor electrode has been fabricated through a simple, inexpensive, bulk-scalable, and environmentally friendly method, without using any extra current collector, binder, or conducting additive. Benefiting from its unique micro-tubular hollow structure with a thin cell wall and large lumen, kapok fiber (KF) was used herein as a low-cost template for the successive growth of polypyrrole (PPy) through in situ chemical polymerization. This PPy-coated KF (KF@PPy) was blended with functionalized carbon nanotubes (f-CNTs) to form freestanding conductive films (KF@PPy/f-CNT) through a simple dispersion and filtration method. The hybrid film featuring the optimal composition exhibited an outstanding areal capacitance of 1289 mF cm−2 at a scan rate of 5 mV s−1. Moreover, an assembled all-solid-state symmetric supercapacitor featuring a PVA/H2SO4 gel electrolyte exhibited not only areal capacitances as high as 258 mF cm−2 (at a scan rate of 5 mV s−1) but also excellent cycling stability (97.4% of the initial capacitance after 2500 cycles). Therefore, this efficient, low-cost, scalable green synthesis strategy appears to be a facile and sustainable way of fabricating high-performance flexible supercapacitors incorporating a renewable cellulose material.

scholarly journals Inkjet Printing of Polypyrrole Electroconductive Layers Based on Direct Inks Freezing and Their Use in Textile Solid-State Supercapacitors

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3577
Author(s):  
Zbigniew Stempien ◽  
Mohmmad Khalid ◽  
Marcin Kozanecki ◽  
Paulina Filipczak ◽  
Angelika Wrzesińska ◽  
...  
Keyword(s):  
Solid State ◽  
Inkjet Printing ◽  
Surface Resistance ◽  
Spectroscopic Studies ◽  
Polymerization Temperature ◽  
Textile Fabrics ◽  
Symmetric Supercapacitor ◽  
Novel Method ◽  
A Current ◽  
Standard Support

In this work, we propose a novel method for the preparation of polypyrrole (PPy) layers on textile fabrics using a reactive inkjet printing technique with direct freezing of inks under varying temperature up to −16 °C. It was found that the surface resistance of PPy layers on polypropylene (PP) fabric, used as a standard support, linearly decreased from 6335 Ω/sq. to 792 Ω/sq. with the decrease of polymerization temperature from 23 °C to 0 °C. The lowest surface resistance (584 Ω/sq.) of PPy layer was obtained at −12 °C. The spectroscopic studies showed that the degree of the PPy oxidation as well as its conformation is practically independent of the polymerization temperature. Thus, observed tendences in electrical conductivity were assigned to change in PPy layer morphology, as it is significantly influenced by the reaction temperature: the lower the polymerization temperature the smoother the surface of PPy layer. The as-coated PPy layers on PP textile substrates were further assembled as the electrodes in symmetric all-solid-state supercapacitor devices to access their electrochemical performance. The electrochemical results demonstrate that the symmetric supercapacitor device made with the PPy prepared at −12 °C, showed the highest specific capacitance of 72.3 F/g at a current density of 0.6 A/g, and delivers an energy density of 6.12 Wh/kg with a corresponding power density of 139 W/kg.

High performance fiber-shaped all-solid-state symmetric supercapacitor based on mesoporous CuCo2S4 nanosheets

2018 ◽  
Vol 30 (1) ◽  
pp. 667-676 ◽  
Author(s):  
Jiqiu Qi ◽  
Xiaofeng Liu ◽  
Yanwei Sui ◽  
Yezeng He ◽  
Yaojian Ren ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Symmetric Supercapacitor ◽  
High Performance Fiber

Scalable solid-state synthesis of coralline-like nanostructured Co@CoNC electrocatalyst for Zn–air batteries

2018 ◽  
Vol 54 (59) ◽  
pp. 8190-8193 ◽  
Author(s):  
Hao Luo ◽  
Wen-Jie Jiang ◽  
Cong Lin ◽  
Wei Dong ◽  
Shuai Niu ◽  
...  
Keyword(s):  
Solid State ◽  
Oxygen Reduction ◽  
Cobalt Nanoparticles ◽  
Solid State Synthesis ◽  
Synthesis Strategy

A facile and scalable solid-state synthesis strategy is developed to produce hierarchical coralline-like nanostructured electrocatalysts with cobalt nanoparticles and Co–NX sites for efficient oxygen reduction.

Ultrahigh energy density of a N, O codoped carbon nanosphere based all-solid-state symmetric supercapacitor

2019 ◽  
Vol 7 (3) ◽  
pp. 1177-1186 ◽  
Author(s):  
Ziyang Song ◽  
Dazhang Zhu ◽  
Liangchun Li ◽  
Tao Chen ◽  
Hui Duan ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Ultrahigh Energy ◽  
Carbon Nanospheres ◽  
Symmetric Supercapacitor

A novel quinone–amine route is developed to fabricate N, O codoped carbon nanospheres for an all-solid-state supercapacitor with an ultrahigh energy density.

scholarly journals Co3O4 Nanowires on Flexible Carbon Fabric as a Binder-Free Electrode for All Solid-State Symmetric Supercapacitor

ACS Omega ◽  
2017 ◽  
Vol 2 (8) ◽  
pp. 4216-4226 ◽  
Author(s):  
Promita Howli ◽  
Swati Das ◽  
Samrat Sarkar ◽  
Madhupriya Samanta ◽  
Karamjyoti Panigrahi ◽  
...  
Keyword(s):  
Solid State ◽  
Carbon Fabric ◽  
Symmetric Supercapacitor ◽  
Binder Free

First report on a FeS-based 2 V operating flexible solid-state symmetric supercapacitor device

2017 ◽  
Vol 1 (6) ◽  
pp. 1366-1375 ◽  
Author(s):  
Swapnil S. Karade ◽  
Pratibha Dwivedi ◽  
Sutripto Majumder ◽  
Bidhan Pandit ◽  
Babasaheb R. Sankapal
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Room Temperature ◽  
Silar Method ◽  
First Report ◽  
Layer Adsorption ◽  
Symmetric Supercapacitor ◽  
Ionic Layer

Device grade application of FeS thin film deposited by successive ionic layer adsorption and reaction (SILAR) method at room temperature.

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