Insight into the electrochemical behavior of micrometric Bi and Mg3Bi2 as high performance negative electrodes for Mg batteries

2015 ◽  
Vol 3 (32) ◽  
pp. 16478-16485 ◽  
Author(s):  
Fabrizio Murgia ◽  
Lorenzo Stievano ◽  
Laure Monconduit ◽  
Romain Berthelot
Keyword(s):  
Electrode Material ◽  
Electrochemical Behavior ◽  
High Performance ◽  
Counter Electrode ◽  
Half Cell ◽  
Active Electrode ◽  
Negative Electrodes ◽  
Insight Into

The electrochemical behavior of micrometric Bi powder as an active electrode material for Mg batteries is revisited in a half-cell with Mg metal as the counter electrode and organohaloaluminate-based complex electrolyte.

scholarly journals Ce-Doped PANI/Fe3O4 Nanocomposites: Electrode Materials for Supercapattery

2021 ◽  
Vol 3 ◽  
Author(s):  
Subash Pandey ◽  
Shova Neupane ◽  
Dipak Kumar Gupta ◽  
Anju Kumari Das ◽  
Nabin Karki ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Maximum Energy ◽  
Potential Range ◽  
X Ray Diffraction ◽  
Active Electrode ◽  
Transmission Electron

In this study, we report on a combined approach to preparing an active electrode material for supercapattery application by making nanocomposites of Polyaniline/Cerium (PANI/Ce) with different weight percentages of magnetite (Fe3O4). Fourier-transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) analyses supported the interaction of PANI with Ce and the formation of the successful nanocomposite with magnetite nanoparticles. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses showed the uniform and porous morphology of the composites. Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) were used to test the supercapattery behavior of the nanocomposite electrodes in 1.0 M H2SO4. It was found that the supercapattery electrode of PANI/Ce+7 wt.% Fe3O4 exhibited a specific capacity of 171 mAhg−1 in the potential range of −0.2 to 1.0 V at the current density of 2.5 Ag−1. Moreover, PANI/Ce+7 wt.% Fe3O4 revealed a power density of 376.6 Wkg−1 along with a maximum energy density of 25.4 Whkg−1 at 2.5 Ag−1. Further, the cyclic stability of PANI/Ce+7 wt.% Fe3O4 was found to be 96.0% after 5,000 cycles. The obtained results suggested that the PANI/Ce+Fe3O4 nanocomposite could be a promising electrode material candidate for high-performance supercapattery applications.

Fe3O4 nanoparticles embedded in cellulose nanofibre/graphite carbon hybrid aerogels as advanced negative electrodes for flexible asymmetric supercapacitors

2018 ◽  
Vol 6 (36) ◽  
pp. 17378-17388 ◽  
Author(s):  
Liaoyuan Xia ◽  
Xiangling Li ◽  
Xian Wu ◽  
Le Huang ◽  
Yu Liao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Fe3o4 Nanoparticles ◽  
High Performance ◽  
Rational Design ◽  
Negative Electrode ◽  
Asymmetric Supercapacitors ◽  
Bottom Up ◽  
Negative Electrodes ◽  
Hybrid Aerogels ◽  
Negative Electrode Material

A simple and scalable bottom-up strategy is developed for the rational design and preparation of a high-performance 3-D CNF/MWCNT/RGO/Fe3O4 negative electrode material for assembly of flexible asymmetric supercapacitors.

Solution processed low-cost and highly electrocatalytic composite NiS/PbS nanostructures as a novel counter-electrode material for high-performance quantum dot-sensitized solar cells with improved stability

2015 ◽  
Vol 3 (48) ◽  
pp. 12514-12528 ◽  
Author(s):  
Chandu V. V. M. Gopi ◽  
Mallineni Venkata-Haritha ◽  
Seenu Ravi ◽  
Chebrolu Venkata Thulasi-Varma ◽  
Soo-Kyoung Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electrode Material ◽  
High Performance ◽  
Counter Electrode ◽  
Low Cost ◽  
Solution Processed ◽  
Improved Stability ◽  
Sensitized Solar Cells ◽  
Counter Electrode Material

The NiS/PbS as a CE achieves a higher PCE of 4.52% than the NiS (3.26%) and Pt (1.29%) CEs.

scholarly journals A Facile Synthesis of PbS-G QDs Nanocomposite as Electrode Material With Enhanced Energy Density for High Performance Supercapattery Application

2021 ◽  
Author(s):  
G. Suganya ◽  
M. Arivanandhan ◽  
Kalpana Gopalakrishnan
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Specific Capacity ◽  
Analytical Techniques ◽  
Active Electrode ◽  
High Specific Capacity ◽  
Power Densities ◽  
Enhanced Electrochemical Performance ◽  
Discharge Curves

Abstract Bare PbS QDs and PbS-GQDs nanocomposite were prepared by chemical methods for supercapattery application and characterized by suitable analytical techniques confirming the formation of PbS-GQDs nanocomposite. The electrochemical performance of the fabricated electrodes showed that the PbS-GQDs nanocomposite exhibited high specific capacity, energy and power densities of 577.94 C g-1 , 166.45 Wh kg-1 and 576.01 W kg-1 respectively at 2 A g-1 compared to that of bare PbS QDs. The enhanced electrochemical performance of PbS-GQDs can be associated with the conductive platform provided by synergistic effect of GQDs. The nonlinearity in charge and discharge curves confirms the supercapattery behaviour of the nanocomposite. Also, PbS-G QDs nanocomposite electrode showed highly cyclic stability compared to bare PbS QDs after 5000 cycles. The results emphasize the potential of PbS-G QDs nanocomposite as a stable active electrode material for energy storage application.

High performance supercapacitor electrode material based on vertically aligned PANI grown on reduced graphene oxide/Ni(OH)2 hybrid composite

RSC Advances ◽  
2014 ◽  
Vol 4 (50) ◽  
pp. 26094-26101 ◽  
Author(s):  
Debasis Ghosh ◽  
Soumen Giri ◽  
Manas Mandal ◽  
Chapal Kumar Das
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
Electrochemical Behavior ◽  
Hybrid Composite ◽  
High Performance ◽  
Supercapacitor Electrode ◽  
Reduced Graphene ◽  
Vertically Aligned

Unique vertically aligned PANI on rGO/Ni(OH)2 composite has been synthesized by a hydrothermal method exhibiting superior electrochemical behavior.

Insight into the structure-capacity relationship in biomass derived carbon for high-performance sodium-ion batteries

2021 ◽  
Vol 62 ◽  
pp. 497-504
Author(s):  
Jianguo Sun ◽  
Yao Sun ◽  
Jin An Sam Oh ◽  
Qilin Gu ◽  
Weidong Zheng ◽  
...  
Keyword(s):  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Insight Into
Sign in / Sign up

Export Citation Format

Share Document