scholarly journals Recent Development in Vanadium Pentoxide and Carbon Hybrid Active Materials for Energy Storage Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3213
Author(s):  
Andrew Kim ◽  
Golap Kalita ◽  
Jong Hak Kim ◽  
Rajkumar Patel
Keyword(s):  
Energy Storage ◽  
Vanadium Pentoxide ◽  
Energy Demand ◽  
Carbon Nanostructures ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Green Energy ◽  
Energy Storage And Conversion ◽  
Synthesis Methods ◽  
Scientific Publications

With the increasing energy demand for portable electronics, electric vehicles, and green energy storage solutions, the development of high-performance supercapacitors has been at the forefront of energy storage and conversion research. In the past decade, many scientific publications have been dedicated to designing hybrid electrode materials composed of vanadium pentoxide (V2O5) and carbon nanomaterials to bridge the gap in energy and power of traditional batteries and capacitors. V2O5 is a promising electrode material owing to its natural abundance, nontoxicity, and high capacitive potential. However, bulk V2O5 is limited by poor conductivity, low porosity, and dissolution during charge/discharge cycles. To overcome the limitations of V2O5, many researchers have incorporated common carbon nanostructures such as reduced graphene oxides, carbon nanotubes, carbon nanofibers, and other carbon moieties into V2O5. The carbon components facilitate electron mobility and act as porous templates for V2O5 nucleation with an enhanced surface area as well as interconnected surface morphology and structural stability. This review discusses the development of various V2O5/carbon hybrid materials, focusing on the effects of different synthesis methods, V2O5/carbon compositions, and physical treatment strategies on the structure and electrochemical performance of the composite material as promising supercapacitor electrodes.

Incorporating conjugated carbonyl compounds into carbon nanomaterials as electrode materials for electrochemical energy storage

2016 ◽  
Vol 18 (46) ◽  
pp. 31361-31377 ◽  
Author(s):  
Guanhui Yang ◽  
Yu Zhang ◽  
Yanshan Huang ◽  
Muhammad Imran Shakir ◽  
Yuxi Xu
Keyword(s):  
Energy Storage ◽  
Carbonyl Compounds ◽  
Recent Progress ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Electrochemical Energy Storage ◽  
Electrochemical Energy

This review provided an overview of recent progress on composites of conjugated carbonyl compounds and carbon nanomaterials for energy storage.

High-Capacity Derivatives Produced from Hydrolytic Lignin as Electrode Materials for Energy Storage and Conversion

2018 ◽  
Vol 386 ◽  
pp. 359-364
Author(s):  
Yury M. Nikolenko ◽  
Denis P. Opra ◽  
Alexander K. Tsvetnikov ◽  
Alexander Yu. Ustinov ◽  
Valery G. Kuryavyi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Energy Storage ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Energy Storage And Conversion ◽  
Operating Voltage ◽  
X Ray ◽  
Thermally Activated ◽  
Hydrolytic Lignin

The hydrolytic lignin derivatives have been prepared via its physical activation (high-temperature heating in vacuum) followed by chemical modification (fluorination). The obtained products were characterized using scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. It was found that the graphitized product of thermal activation up to 1000 °C at a low rate of < 2 °C/min under high vacuum shows an enhanced specific surface area (215 m2/g), that makes its potentially useful as sorbent, catalytic substrate or electrode material. To clarify the potentialities of hydrolytic lignin derivatives for energy storage and conversion, the electrochemical system with metallic lithium anode was applied. The galvanostatic discharge of battery at a current density of 100 μA/cm2between 3.0 and 0.5 V shows that the specific capacity of thermally activated derivative is equal to 845 mA·h/g, while the untreated lignin yields only 190 mA·h/g. The improve of the electrochemical performance of product originates from its graphitization, increasing electronic conductivity, and, possibly, enhanced ability to adsorb of oxygen. The fluorination of both the lignin and its thermally activated form results in higher operating voltage of battery, as seems, due to the involvement of fluorine bound to carbon in electrochemical process.

scholarly journals Hybrid structured CoNi2S4/Ni3S2 nanowires with multifunctional performance for hybrid capacitor electrodes and overall water splitting

RSC Advances ◽  
2020 ◽  
Vol 10 (55) ◽  
pp. 33428-33435
Author(s):  
Xiaoyun Liu ◽  
Qian Li ◽  
Xin Zhang ◽  
Yueqiu Jiang
Keyword(s):  
Energy Storage ◽  
Water Splitting ◽  
Significant Role ◽  
Rational Design ◽  
Electrode Materials ◽  
Energy Storage And Conversion ◽  
Overall Water Splitting ◽  
Potential Applications

Rational design of electrode materials plays a significant role in potential applications such as energy storage and conversion.

Carbon Nanomaterials for Applications on Supercapacitors

MRS Advances ◽  
2017 ◽  
Vol 2 (54) ◽  
pp. 3283-3289
Author(s):  
Youning Gong ◽  
Qiang Fu ◽  
Chunxu Pan
Keyword(s):  
Energy Storage ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Carbon Nanospheres ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
The Past ◽  
Synthetic Routes ◽  
And Storage ◽  
Carbon Based

ABSTRACTSupercapacitor is a newly-developed device for electrochemical energy storage with high power density, long life span, as well as rapid capture and storage of energy. Carbon-based materials, from carbon nanospheres, nanotubes and nanofibers to graphene, are the most commonly used electrode materials for supercapacitors. Our group has engaged in the research of carbon nanomaterials over the past decade. Herein we summarize some typical carbon nanomaterials and their synthetic routes based on our published works, which is expected to provide the theoretical and experimental basis for further applications on carbon-based energy storage devices.

scholarly journals Electrocatalytic Assisted Performance Enhancement for the Na-S Battery in Nitrogen-Doped Carbon Nanospheres Loaded with Fe

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1585 ◽  
Author(s):  
Jianhui Zhu ◽  
Amr Abdelkader ◽  
Denisa Demko ◽  
Libo Deng ◽  
Peixin Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Carbon Nanostructures ◽  
Room Temperature ◽  
Performance Enhancement ◽  
Energy Storage And Conversion ◽  
Carbon Nanospheres ◽  
Shuttle Effect ◽  
Electrocatalytic Effect ◽  
Sodium Sulfur ◽  
Fe Ions

Room temperature sodium-sulfur batteries have been considered to be potential candidates for future energy storage devices because of their low cost, abundance, and high performance. The sluggish sulfur reaction and the “shuttle effect” are among the main problems that hinder the commercial utilization of room temperature sodium-sulfur batteries. In this study, the performance of a hybrid that was based on nitrogen (N)-doped carbon nanospheres loaded with a meagre amount of Fe ions (0.14 at.%) was investigated in the sodium-sulfur battery. The Fe ions accelerated the conversion of polysulfides and provided a stronger interaction with soluble polysulfides. The Fe-carbon nanospheres hybrid delivered a reversible capacity of 359 mAh·g−1 at a current density of 0.1 A·g−1 and retained a capacity of 180 mAh·g−1 at 1 A·g−1, after 200 cycles. These results, combined with the excellent rate performance, suggest that Fe ions, even at low loading, are able to improve the electrocatalytic effect of carbon nanostructures significantly. In addition to Na-S batteries, the new hybrid is anticipated to be a strong candidate for other energy storage and conversion applications such as other metal-sulfur batteries and metal-air batteries.

scholarly journals Ultrathin Ti3C2Tx (MXene) Nanosheet-Wrapped NiSe2 Octahedral Crystal for Enhanced Supercapacitor Performance and Synergetic Electrocatalytic Water Splitting

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hanmei Jiang ◽  
Zegao Wang ◽  
Qian Yang ◽  
Luxi Tan ◽  
Lichun Dong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Active Sites ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
Interfacial Interaction ◽  
Energy Storage And Conversion ◽  
Excellent Electrochemical Performance ◽  
Strong Interfacial Interaction ◽  
Supercapacitor Performance ◽  
Metal Selenides

Abstract Metal selenides, such as NiSe2, have exhibited great potentials as multifunctional materials for energy storage and conversation. However, the utilization of pure NiSe2 as electrode materials is limited by its poor cycling stability, low electrical conductivity, and insufficient electrochemically active sites. To remedy these defects, herein, a novel NiSe2/Ti3C2Tx hybrid with strong interfacial interaction and electrical properties is fabricated, by wrapping NiSe2 octahedral crystal with ultrathin Ti3C2Tx MXene nanosheet. The NiSe2/Ti3C2Tx hybrid exhibits excellent electrochemical performance, with a high specific capacitance of 531.2 F g−1 at 1 A g−1 for supercapacitor, low overpotential of 200 mV at 10 mA g−1, and small Tafel slope of 37.7 mV dec−1 for hydrogen evolution reaction (HER). Furthermore, greater cycling stabilities for NiSe2/Ti3C2Tx hybrid in both supercapacitor and HER have also been achieved. These significant improvements compared with unmodified NiSe2 should be owing to the strong interfacial interaction between NiSe2 octahedral crystal and Ti3C2Tx MXene, which provides enhanced conductivity, fast charge transfer as well as abundant active sites, and highlight the promising potentials in combinations of MXene with metal selenides for multifunctional applications such as energy storage and conversion.

Nanocomposites for Electrochemical Energy Storage - An Overview

2017 ◽  
Vol 735 ◽  
pp. 189-193
Author(s):  
Priscila Tamiasso-Martinhon ◽  
Sousa Célia
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Electrode Materials ◽  
Modern Society ◽  
Cost Effective ◽  
Energy Storage And Conversion ◽  
Research Activity ◽  
Energy Field ◽  
Electrochemical Double Layer ◽  
And Performance

Energy storage and conversion are major problems of our modern society. In the last decades, in order to minimize these problems, a growing research activity was dedicated to the development of new systems involved in this energy field. The fabrication of supercapacitors based on new materials, such as electrochemical double layer capacitor, can offer attractive potentialities. Indeed, these supercapacitors are able to provide a power density ten times higher than that supplied by batteries, and allow a larger number of charge and discharge cycles. The performance of supercapacitors highly depends on the properties of electrode materials. Ternary composites combining both capacitive and faradaic reactions can address the improvement necessary for relatively cost effective and performance of supercapacitors. Particularly, ternary nanocomposites systems of carbon nanotubes (CNTs), conducting polymer (CPs) films and metal oxide/hydroxide; CNT:CP:Metal oxide; has been proposed as potential electrodes for electrochemical supercapacitors, as alternatives to overcome the drawbacks associated with single component electrodes for the construction of high performance supercapacitors.

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