Multifunctional spinel MnCo2O4 based materials for energy storage and conversion: a review on emerging trends, recent developments and future perspectives

2021 ◽  
Author(s):  
Josué M. Gonçalves ◽  
Murillo N. T. Silva ◽  
Kusha Kumar Naik ◽  
Paulo R. Martins ◽  
Diego P. Rocha ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Energy Storage And Conversion ◽  
Sustainable Society ◽  
Future Perspectives ◽  
Emerging Trends ◽  
Recent Developments ◽  
The Way

In this review, electrocatalysts for HER/OER/ORR and energy storage electrode materials based on MnCo2O4 were reviewed considering their key multifunctional role in the way to a more sustainable society.

Schottky diodes based on 2D materials for environmental gas monitoring: a review on emerging trends, recent developments and future perspectives

2021 ◽  
Author(s):  
Minu Mathew ◽  
Chandra Sekhar Rout
Keyword(s):  
Gas Sensing ◽  
2D Materials ◽  
Schottky Diodes ◽  
High Sensitivity ◽  
Future Perspectives ◽  
Working Temperature ◽  
Emerging Trends ◽  
Gas Sensing Properties ◽  
Recent Developments ◽  
Sensitivity And Selectivity

This review details the fundamentals, working principles and recent developments of Schottky junctions based on 2D materials to emphasize their improved gas sensing properties including low working temperature, high sensitivity, and selectivity.

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 Current progress achieved in novel materials for supercapacitor electrodes: mini review

2019 ◽  
Vol 1 (8) ◽  
pp. 2817-2827 ◽  
Author(s):  
Sumaiyah Najib ◽  
Emre Erdem
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Production Methods ◽  
Novel Materials ◽  
Recent Developments ◽  
Design Techniques

This mini-review presents a summary of recent developments in supercapacitor research and technology, including all kinds of supercapacitor design techniques using various electrode materials and production methods for addressing energy storage and harvesting issues.

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.

Bulk COFs and COF nanosheets for electrochemical energy storage and conversion

2020 ◽  
Vol 49 (11) ◽  
pp. 3565-3604 ◽  
Author(s):  
Jie Li ◽  
Xuechun Jing ◽  
Qingqing Li ◽  
Siwu Li ◽  
Xing Gao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Energy Storage ◽  
Energy Storage And Conversion ◽  
Covalent Organic Frameworks ◽  
Structure Property ◽  
Future Perspectives ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Electrochemical Energy

The current advances, structure-property relationship and future perspectives in covalent organic frameworks (COFs) and their nanosheets for electrochemical energy storage (EES) and conversion (EEC) are summarized.

Nanoribbons of 2D materials: A review on emerging trends, recent developments and future perspectives

2022 ◽  
Vol 453 ◽  
pp. 214335
Author(s):  
Pratik V. Shinde ◽  
Anjana Tripathi ◽  
Ranjit Thapa ◽  
Chandra Sekhar Rout
Keyword(s):  
2D Materials ◽  
Future Perspectives ◽  
Emerging Trends ◽  
Recent Developments

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.

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