scholarly journals A Terpyridine-Fe2+-Based Coordination Polymer Film for On-Chip Micro-Supercapacitor with AC Line-Filtering Performance

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1002
Author(s):  
Hongxing Wang ◽  
Feng Qiu ◽  
Chenbao Lu ◽  
Jinhui Zhu ◽  
Changchun Ke ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Polymer Films ◽  
Flexible Electronics ◽  
Electrode Materials ◽  
Interfacial Polymerization ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Redox Active ◽  
Ultrathin Polymer Films ◽  
On Chip

The preparation of redox-active, ultrathin polymer films as the electrode materials represents a major challenge for miniaturized flexible electronics. Herein, we demonstrated a liquid–liquid interfacial polymerization approach to a coordination polymer films with ultrathin thickness from tri(terpyridine)-based building block and iron atoms. The as-synthesized polymer films exhibit flexible properties, good redox-active and narrow bandgap. After directly transferred to silicon wafers, the on-chip micro-supercapacitors of TpPB-Fe-MSC achieved the high specific capacitances of 1.25 mF cm−2 at 50 mV s−1 and volumetric energy density of 5.8 mWh cm−3, which are superior to most of semiconductive polymer-based micro-supercapacitor (MSC) devices. In addition, as-fabricated on-chip MSCs exhibit typical alternating current (AC) line-filtering performance (−71.3° at 120 Hz) and a short resistance–capacitance (RC) time (0.06 ms) with the electrolytes of PVA/LiCl. This study provides a simple interfacial approach to redox-active polymer films for microsized energy storage devices.

scholarly journals A Review of Supercapacitors Based on Graphene and Redox-Active Organic Materials

Materials ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 703 ◽  
Author(s):  
Qi Li ◽  
Michael Horn ◽  
Yinong Wang ◽  
Jennifer MacLeod ◽  
Nunzio Motta ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
Dimensional Structure ◽  
Future Research ◽  
Synthesis Methods ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Redox Active ◽  
Recent Developments

Supercapacitors are a highly promising class of energy storage devices due to their high power density and long life cycle. Conducting polymers (CPs) and organic molecules are potential candidates for improving supercapacitor electrodes due to their low cost, large specific pseudocapacitance and facile synthesis methods. Graphene, with its unique two-dimensional structure, shows high electrical conductivity, large specific surface area and outstanding mechanical properties, which makes it an excellent material for lithium ion batteries, fuel cells and supercapacitors. The combination of CPs and graphene as electrode material is expected to boost the properties of supercapacitors. In this review, we summarize recent reports on three different CP/graphene composites as electrode materials for supercapacitors, discussing synthesis and electrochemical performance. Novel flexible and wearable devices based on CP/graphene composites are introduced and discussed, with an eye to recent developments and challenges for future research directions.

Fabrication and Design of New Redox Active Azure A/3D Graphene Aerogel and Conductive Trypan Blue–Nickel MOF Nanosheet Array Electrodes for an Asymmetric Supercapattery

2021 ◽  
Author(s):  
Tahereh Sadeghian ◽  
Mehdi Khoshfetrat ◽  
Jalal Arjomandi ◽  
HU SHI ◽  
Sadegh Khazalpour
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Efficiency ◽  
Low Cost ◽  
Graphene Aerogel ◽  
Energy Storage Devices ◽  
3D Graphene ◽  
Storage Devices ◽  
Nanosheet Array ◽  
Redox Active

Great efforts have been made to design and fabricate low-cost, high efficiency advanced electrode materials for energy storage devices such as batteries and high-performance supercapacitors. Choosing organic and redox active...

scholarly journals Recent developments of advanced micro-supercapacitors: design, fabrication and applications

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Fan Bu ◽  
Weiwei Zhou ◽  
Yihan Xu ◽  
Yu Du ◽  
Cao Guan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Flexible Electronics ◽  
High Performance ◽  
Electrode Materials ◽  
Rapid Development ◽  
Energy Storage Devices ◽  
Long Cycle Life ◽  
Recent Developments ◽  
On Chip ◽  
And Function

AbstractThe rapid development of wearable, highly integrated, and flexible electronics has stimulated great demand for on-chip and miniaturized energy storage devices. By virtue of their high power density and long cycle life, micro-supercapacitors (MSCs), especially those with interdigital structures, have attracted considerable attention. In recent years, tremendous theoretical and experimental explorations have been carried out on the structures and electrode materials of MSCs, aiming to obtain better mechanical and electrochemical properties. The high-performance MSCs can be used in many fields, such as energy storage and medical assistant examination. Here, this review focuses on the recent progress of advanced MSCs in fabrication strategies, structural design, electrode materials design and function, and integrated applications, where typical examples are highlighted and analyzed. Furthermore, the current challenges and future development directions of advanced MSCs are also discussed.

scholarly journals The rise of organic electrode materials for energy storage

2016 ◽  
Vol 45 (22) ◽  
pp. 6345-6404 ◽  
Author(s):  
Tyler B. Schon ◽  
Bryony T. McAllister ◽  
Peng-Fei Li ◽  
Dwight S. Seferos
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Organic Electrode ◽  
Future Work

We review organic electrode materials for energy storage devices and suggest directions for future work in this area.

scholarly journals Synergistic approach of high-performance N-NiCo/PC environment benign electrode material for energy storage device

2021 ◽  
Author(s):  
Muhammad Irfan ◽  
Xianhua Liu ◽  
Suraya Mushtaq ◽  
Jonnathan Cabrera ◽  
Pingping Zhang
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Electrode Materials ◽  
Composite Catalyst ◽  
Storage Device ◽  
Energy Storage Devices ◽  
Biomass Waste ◽  
Supercapacitor Application ◽  
Suitable Material ◽  
Storage Devices

Abstract Development of sustainable electrochemical energy storage devices faces great challenge in exploring highly efficient and low cost electrode materials. Biomass waste derived carbonaceous materials can be used as an alternative to expensive metals in supercapacitor. However, their application limited by low performance. In this study, the combination use of persimmon waste derived carbon and transition metal nitride demonstrated strong potential for supercapacitor application. Persimmon based carbonaceous gel decorated with bimetallic-nitride (N-NiCo/PC) was firstly synthesized through a green hydrothermal method. Electrochemical properties of N-NiCo/PC as electrode in 6 M KOH electrolyte solution were evaluated by using cyclic voltammetry (CV) and charge-discharge measurements. The N-NiCo/PC exhibited 895.5 F/g specific capacitance at 1 A/g current density and maintained 91.5% capacitance retention after 900 cycles. Hence, the bimetallic nitride-based-composite catalyst is a potentially suitable material for high-performance energy storage devices. In addition, this work demonstrated a promising pathway for transforming environmental waste into sustainable energy conversion materials.

scholarly journals Hydroquinone–pyrrole dyads with varied linkers

2016 ◽  
Vol 12 ◽  
pp. 89-96 ◽  
Author(s):  
Hao Huang ◽  
Christoffer Karlsson ◽  
Maria Strømme ◽  
Martin Sjödin ◽  
Adolf Gogoll
Keyword(s):  
Dft Calculations ◽  
Electrical Energy ◽  
Energy Storage Devices ◽  
Active Materials ◽  
Electrical Energy Storage ◽  
Storage Devices ◽  
H Nmr ◽  
Redox Active ◽  
Homo Lumo ◽  
C Nmr

A series of pyrroles functionalized in the 3-position with p-dimethoxybenzene via various linkers (CH2, CH2CH2, CH=CH, C≡C) has been synthesized. Their electronic properties have been deduced from 1H NMR, 13C NMR, and UV–vis spectra to detect possible interactions between the two aromatic subunits. The extent of conjugation between the subunits is largely controlled by the nature of the linker, with the largest conjugation found with the trans-ethene linker and the weakest with the aliphatic linkers. DFT calculations revealed substantial changes in the HOMO–LUMO gap that correlated with the extent of conjugation found experimentally. The results of this work are expected to open up for use of the investigated compounds as components of redox-active materials in sustainable, organic electrical energy storage devices.

Recent Advances on the Application of Graphene Quantum Dots in Energy Storage

2021 ◽  
Vol 15 ◽  
Author(s):  
Feng Shi ◽  
Quanrun Liu
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Potential Application ◽  
Active Sites ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Graphene Quantum Dots ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
New Energy

Background: As an emerging carbon nanomaterial, graphene quantum dots (GQDs) have shown great potential application in new energy storage devices due to their unique small size effect and abundant edge active sites. This work introduces the main synthesis strategies of GQDs, which includes top-down and bottom-up methods; the application examples of GQDs and GQDs-based composites in energy storage are reviewed, and more, the unique advantages of GQDs are used in supercapacitors, Lithium-ion batteries (LIBs) and Lithium-sulfur batteries (Li–S batteries) are highlighted. The problems and development prospects in this growing area are also discussed. Method: We conducted a detailed search of “the application of GQDs in energy storage devices” in the published papers and the public patents based on Web of Science database in the period from 2014 to 2020. The corresponding literature was carefully evaluated and analyzed. Results: Sixty papers and twenty-eight recent patents were included in this mini-review. The significant advances in the recent years are summarized with comparative and balanced discussion. Thanks to the unique properties of large specific surface area, high conductivity and abundant active sites, GQDs have unparalleled potential application for new energy storage, especially improving the specific capacity and cycle stability of supercapacitors, LIBs and Li-S batteries. Conclusion: The findings of this mini-review confirm the importance of GQDs, show the enhanced electrochemical performance in supercapacitors, LIBs and Li-S batteries, and also provide a helpful guide to design and fabricate highefficiency electrode materials.

Porous Activity of Biomass-Activated Carbon Enhanced by Nitrogen-Dopant Towards High-Performance Lithium Ion Hybrid Battery-Supercapacitor

2021 ◽  
Author(s):  
Juan Yu ◽  
Xuyang Wang ◽  
Jiaxin Peng ◽  
Xuefeng Jia ◽  
Linbo Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Pore Structure ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Utilization Efficiency ◽  
Energy Storage Devices ◽  
Storage Devices

Abstract Biomass-activated carbon materials are promising electrode materials for lithium-ion hybrid capacitors (LiCs) because of their natural hierarchical pore structure. The efficient utilization of structural pores in activated carbon is very important for their electrochemical performance. Herein, porous biomass-activated carbon (PAC) with large specific surface area was prepared using a one-step activation method with biomass waste as the carbon source and ZnCl2 as the activator. To further improve its pore structure utilization efficiency, the PAC was doped with nitrogen using urea as the nitrogen source. The experimental results confirmed that PAC-1 with a high nitrogen doping level of 4.66% exhibited the most efficient pore utilization among all the samples investigated in this study. PAC-1 exhibited 92% capacity retention after 8000 cycles, showing good cycling stability. Then, to maximize the utilization of high-efficiency energy storage devices, LiNi0.8Co0.15Al0.05O2 (NCA), a promising cathode material for lithium-ion batteries with high specific capacity, was compounded with PAC-1 in different ratios to obtain NCA@PC composites. The NCA@PC-9 composite exhibited excellent capacitance in LiCs and an energy density of 210.9 Wh kg-1 at a high power density of 13.3 kW kg-1. These results provide guidelines for the design of high-performance and low-cost energy storage devices.

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