scholarly journals TiO2 NPs Assembled into a Carbon Nanofiber Composite Electrode by a One-Step Electrospinning Process for Supercapacitor Applications

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 899 ◽  
Author(s):  
Bishweshwar Pant ◽  
Mira Park ◽  
Soo-Jin Park
Keyword(s):  
Electrode Material ◽  
Carbon Nanofiber ◽  
Titanium Dioxide Nanoparticles ◽  
Scale Up ◽  
Carbon Composite ◽  
Electrospinning Process ◽  
Tio2 Nps ◽  
Electrospinning Method ◽  
One Step ◽  
Supercapacitor Applications

In this study, we have synthesized titanium dioxide nanoparticles (TiO2 NPs) into carbon nanofiber (NFs) composites by a simple electrospinning method followed by subsequent thermal treatment. The resulting composite was characterized by state-of-the-art techniques and exploited as the electrode material for supercapacitor applications. The electrochemical behavior of the as-synthesized TiO2 NPs assembled into carbon nanofibers (TiO2-carbon NFs) was investigated and compared with pristine TiO2 NFs. The cyclic voltammetry and charge–discharge analysis of the composite revealed an enhancement in the performance of the composite compared to the bare TiO2 NFs. The as-obtained TiO2-carbon NF composite exhibited a specific capacitance of 106.57 F/g at a current density of 1 A/g and capacitance retention of about 84% after 2000 cycles. The results obtained from this study demonstrate that the prepared nanocomposite could be used as electrode material in a supercapacitor. Furthermore, this work provides an easy scale-up strategy to prepare highly efficient TiO2-carbon composite nanofibers.

One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications

2019 ◽  
Vol 48 (28) ◽  
pp. 10652-10660 ◽  
Author(s):  
Tarugu Anitha ◽  
Araveeti Eswar Reddy ◽  
Yedluri Anil Kumar ◽  
Young-Rae Cho ◽  
Hee-Je Kim
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Cycling Stability ◽  
One Step ◽  
Supercapacitor Applications

A bunch of PbMoO4/CdMoO4 nanocube-like structures exhibit superior specific capacitance and cycling stability to PbMoO4 and CdMoO4 electrodes.

scholarly journals Correction: One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications

2020 ◽  
Vol 49 (3) ◽  
pp. 941-941
Author(s):  
Tarugu Anitha ◽  
Araveeti Eswar Reddy ◽  
Yedluri Anil Kumar ◽  
Young-Rae Cho ◽  
Hee-Je Kim
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Dalton Trans ◽  
One Step ◽  
Supercapacitor Applications

Correction for ‘One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications’ by Tarugu Anitha et al., Dalton Trans., 2019, 48, 10652–10660.

Preparation of binder-free CuO/Cu2O/Cu composites: a novel electrode material for supercapacitor applications

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28270-28278 ◽  
Author(s):  
Panpan Xu ◽  
Jijun Liu ◽  
Tong Liu ◽  
Ke Ye ◽  
Kui Cheng ◽  
...  
Keyword(s):  
Electrode Material ◽  
Growth Process ◽  
Nickel Foam ◽  
One Step ◽  
Binder Free ◽  
Template Free ◽  
Free Growth ◽  
Supercapacitor Applications

The results of XRD and XPS demonstrate that CuO/Cu2O/Cu is prepared successfully via a facile, eco-friendly, one-step template-free growth process. SEM figures show that cubic CuO/Cu2O/Cu uniformly and densely covers a skeleton of nickel foam.

One step synthesis of SnS2-SnO2 nano-heterostructured as an electrode material for supercapacitor applications

2019 ◽  
Vol 782 ◽  
pp. 38-50 ◽  
Author(s):  
Parvin Asen ◽  
Maryam Haghighi ◽  
Saeed Shahrokhian ◽  
Nima Taghavinia
Keyword(s):  
Electrode Material ◽  
One Step ◽  
Supercapacitor Applications

Facile one-step synthesis of a composite CuO/Co3O4 electrode material on Ni foam for flexible supercapacitor applications

2017 ◽  
Vol 41 (13) ◽  
pp. 5493-5497 ◽  
Author(s):  
Hee-Je Kim ◽  
Sang Yong Kim ◽  
Lun Jae Lim ◽  
Araveeti Eswar Reddy ◽  
Chandu V. V. Muralee Gopi
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
Cyclic Stability ◽  
Ni Foam ◽  
Flexible Supercapacitor ◽  
One Step ◽  
Supercapacitor Applications

CuO/Co3O4 nanospheres were grown on Ni foam via a simple, one-step hydrothermal synthesis. The resultant CuO/Co3O4 composite electrode exhibits superior specific capacitance and cyclic stability compared to the Co3O4 electrode.

Preparation and Structures of Ni/Natural Rubber Promoted Carbon Nanofiber Branches via One-Step Carbonization Process

2020 ◽  
Vol 897 ◽  
pp. 85-90
Author(s):  
Songwuit Chanthee ◽  
Malee Santikunaporn
Keyword(s):  
Natural Rubber ◽  
Carbon Nanofiber ◽  
Fiber Surface ◽  
Electrospinning Process ◽  
Ni Nanoparticles ◽  
Sem Images ◽  
One Pot ◽  
Carbonization Process ◽  
Conventional Heat Treatment ◽  
One Step

A novel nickel (Ni) and natural rubber loaded carbon nanofiber branches were prepared by electrospinning process followed by conventional heat treatment processes. This research utilized a one-step carbonization process using electrospun fibers from one-pot solution consisting of Ni, natural rubber cup lump (NR) and polyacrylonitrile (PAN). The as-spun nanofibers were successfully prepared for different types of NR-PAN and NiNR-PAN samples. The obtained nanofibers were stabilized at 260 °C for 2 h and then cooled to room temperature. The stabilized fibers were continued calcined at 900 °C for 1 h under N2 atmosphere. Samples were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), and Field Emission Scanning Electron Microscopy (FESEM). NR-PAN sample showed a uniform surface whereas tiny branches were found on NiNR-PAN sample. The carbon nanofiber branches with 48.29 nm diameter were observed on the parent carbon fiber surface with 700-800 nm diameter. Furthermore, only metallic Ni nanoparticles was formed and the average size of Ni nanoparticles calculated XRD result was 14.15 nm. SEM images showed that Ni nanoparticles were well dispersed on CNFs.

Ti3SiC2/Carbon Nanofibers Fabricated by Electrospinning as Electrode Material for High-Performance Supercapacitors

2020 ◽  
Vol 20 (10) ◽  
pp. 6441-6449
Author(s):  
Weikang Yan ◽  
Jianqiang Bi ◽  
Weili Wang ◽  
Xiaoning Sun ◽  
Rui Liu ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Rate Capability ◽  
Carbon Composite ◽  
High Specific Surface Area ◽  
High Rate ◽  
Electrochemical Tests ◽  
Superior Electrochemical Properties

As an Mn+1AXn phase ternary layered carbide, Ti3SiC2 possesses the advantages of both excellent stability and high electrical conductivity, which are considered to be promising electrode materials for supercapacitors. Ti3SiC2/Carbon nanofiber composites with one-dimensional nanostructures were successfully synthesized via electrospinning. Systematic electrochemical tests showed that the Ti3SiC2/Carbon composite possesses a large specific capacitance of 133.1 F/g at the current density of 1 A/g, high rate capability of 113.7% capacitance retention from 1 to 10 A/g, and low resistance of 1.07 Ω. After assembling the asymmetrical supercapacitor, Ti3SiC2/Carbon provides the energy density of 7.02 Wh/kg at the power density of 140 W/kg. In addition, Ti3SiC2/Carbon composite is highly stable, with 74.6% capacity retention after 4000 cycles. Ti3SiC2/Carbon’s superior electrochemical properties are ascribed to the 1D nanowire structure and the high specific surface area. Ti3SiC2/Carbon is a prospective electrode material for future supercapacitors.

scholarly journals Fe1−xS Modified TiO2 NPs Embedded Carbon Nanofiber Composite via Electrospinning: A Potential Electrode Material for Supercapacitors

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1075 ◽  
Author(s):  
Bishweshwar Pant ◽  
Hem Raj Pant ◽  
Mira Park
Keyword(s):  
Electrode Material ◽  
Carbon Nanofiber ◽  
Argon Atmosphere ◽  
Electrochemical Studies ◽  
Supercapacitor Electrode ◽  
Electrospinning Technique ◽  
Nanofiber Composite ◽  
Tio2 Nps ◽  
Potential Electrode ◽  
State Of Art

Fe1−xS-TiO2 nanoparticles embedded carbon nanofibers (Fe1−xS-TiO2/CNFs) composite as a supercapacitor electrode material has been reported in the present work. The Fe1−xS-TiO2/CNFs composite was fabricated by electrospinning technique followed by carbonization under argon atmosphere and characterized by the state-of-art techniques. The electrochemical studies were carried out in a 2 M KOH electrolyte solution. The synthesized material showed a specific capacitance value of 138 F/g at the current density of 1 A/g. Further, the capacitance retention was about 83%. The obtained results indicate that the Fe1−xS-TiO2/CNFs composite can be recognized as electrode material in supercapacitor.

scholarly journals Salt Stress Mitigation via the Foliar Application of Chitosan-Functionalized Selenium and Anatase Titanium Dioxide Nanoparticles in Stevia (Stevia rebaudiana Bertoni)

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4090
Author(s):  
Morteza Sheikhalipour ◽  
Behrooz Esmaielpour ◽  
Gholamreza Gohari ◽  
Maryam Haghighi ◽  
Hessam Jafari ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Salt Stress ◽  
Titanium Dioxide Nanoparticles ◽  
Chitosan Nanoparticles ◽  
Stevia Rebaudiana ◽  
High Salt ◽  
Steviol Glycosides ◽  
Rebaudioside A ◽  
Tio2 Nps ◽  
Stevia Rebaudiana Bertoni

High salt levels are one of the significant and major limiting factors on crop yield and productivity. Out of the available attempts made against high salt levels, engineered nanoparticles (NPs) have been widely employed and considered as effective strategies in this regard. Of these NPs, titanium dioxide nanoparticles (TiO2 NPs) and selenium functionalized using chitosan nanoparticles (Cs–Se NPs) were applied for a quite number of plants, but their potential roles for alleviating the adverse effects of salinity on stevia remains unclear. Stevia (Stevia rebaudiana Bertoni) is one of the reputed medicinal plants due to their diterpenoid steviol glycosides (stevioside and rebaudioside A). For this reason, the current study was designed to investigate the potential of TiO2 NPs (0, 100 and 200 mg L−1) and Cs–Se NPs (0, 10 and 20 mg L−1) to alleviate salt stress (0, 50 and 100 mM NaCl) in stevia. The findings of the study revealed that salinity decreased the growth and photosynthetic traits but resulted in substantial cell damage through increasing H2O2 and MDA content, as well as electrolyte leakage (EL). However, the application of TiO2 NPs (100 mg L−1) and Cs–Se NPs (20 mg L−1) increased the growth, photosynthetic performance and activity of antioxidant enzymes, and decreased the contents of H2O2, MDA and EL under the saline conditions. In addition to the enhanced growth and physiological performance of the plant, the essential oil content was also increased with the treatments of TiO2 (100 mg L−1) and Cs–Se NPs (20 mg L−1). In addition, the tested NPs treatments increased the concentration of stevioside (in the non-saline condition and under salinity stress) and rebaudioside A (under the salinity conditions) in stevia plants. Overall, the current findings suggest that especially 100 mg L−1 TiO2 NPs and 20 mg L−1 Cs–Se could be considered as promising agents in combating high levels of salinity in the case of stevia.

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