scholarly journals Coulombically-stabilized oxygen hole polarons enable fully reversible oxygen redox

2021 ◽  
Author(s):  
Iwnetim Iwnetu Abate ◽  
C. Das Pemmaraju ◽  
Se Young Kim ◽  
Kuan H Hsu ◽  
Sami Sainio ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electronic States ◽  
Stabilization Mechanism ◽  
Redox Couples ◽  
Oxygen Hole ◽  
High Valent

Stabilizing high-valent redox couples and exotic electronic states necessitate an understanding of the stabilization mechanism. In oxides, whether they are being considered for energy storage or computing, highly oxidized oxide-anion...

scholarly journals Synthesis, characterizations and electrochemical performances of anhydrous CoC2O4 nanorods for pseudocapacitive energy storage applications

RSC Advances ◽  
2021 ◽  
Vol 11 (54) ◽  
pp. 33926-33937
Author(s):  
Neeraj Kumar Mishra ◽  
Rakesh Mondal ◽  
Preetam Singh
Keyword(s):  
Energy Storage ◽  
Active Participation ◽  
Electrochemical Performances ◽  
Redox Couples ◽  
Energy Storage Applications

With active participation of Co2+/3+ redox couples in an oxalate framework, Anhydrous CoC2O4 nanorods display a capacitance equivalent to 2116 F g−1 at 1 A g−1 current rate in the potential window of 0.3 V in aqueous 2 M KOH electrolyte.

Non-covalently functionalizing a graphene framework by anthraquinone for high-rate electrochemical energy storage

RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23942-23951 ◽  
Author(s):  
Ning An ◽  
Fuhai Zhang ◽  
Zhongai Hu ◽  
Zhimin Li ◽  
Li Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Covalent Modification ◽  
High Rate ◽  
Electrochemical Energy Storage ◽  
Long Cycle Life ◽  
Redox Couples ◽  
Reversible Redox ◽  
Good Rate Capability

Anthraquinone (AQ) with electrochemically reversible redox couples is selected to functionalize graphene framework (GF) through non-covalent modification and the composite achieves high specific capacitance, good rate capability and long cycle life.

An Inexpensive Aqueous Flow Battery for Large-Scale Electrical Energy Storage Based on Water-Soluble Organic Redox Couples

2014 ◽  
Vol 161 (9) ◽  
pp. A1371-A1380 ◽  
Author(s):  
Bo Yang ◽  
Lena Hoober-Burkhardt ◽  
Fang Wang ◽  
G. K. Surya Prakash ◽  
S. R. Narayanan
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Electrical Energy ◽  
Water Soluble ◽  
Flow Battery ◽  
Electrical Energy Storage ◽  
Redox Couples ◽  
Aqueous Flow

Electrochromic polymers with multiple redox couples applied to monitor energy storage states of supercapacitors

2020 ◽  
Vol 56 (39) ◽  
pp. 5275-5278 ◽  
Author(s):  
Shouli Ming ◽  
Kaiwen Lin ◽  
Hui Zhang ◽  
Fengxing Jiang ◽  
Peipei Liu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochromic Polymers ◽  
Redox Couples

Electrochromic polymers with multiple separate redox couples are used to monitor the energy storage states of supercapacitors by appearance colour.

scholarly journals Family Tree for Aqueous Organic Redox Couples for Redox Flow Battery Electrolytes: A Conceptual Review

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 560
Author(s):  
Peter Fischer ◽  
Petr Mazúr ◽  
Joanna Krakowiak
Keyword(s):  
Energy Storage ◽  
Metal Ion ◽  
Low Cost ◽  
Aqueous System ◽  
Energy Storage Materials ◽  
Family Tree ◽  
Redox Flow Batteries ◽  
Technical Requirements ◽  
Redox Couples ◽  
Flow Batteries

Redox flow batteries (RFBs) are an increasingly attractive option for renewable energy storage, thus providing flexibility for the supply of electrical energy. In recent years, research in this type of battery storage has been shifted from metal-ion based electrolytes to soluble organic redox-active compounds. Aqueous-based organic electrolytes are considered as more promising electrolytes to achieve “green”, safe, and low-cost energy storage. Many organic compounds and their derivatives have recently been intensively examined for application to redox flow batteries. This work presents an up-to-date overview of the redox organic compound groups tested for application in aqueous RFB. In the initial part, the most relevant requirements for technical electrolytes are described and discussed. The importance of supporting electrolytes selection, the limits for the aqueous system, and potential synthetic strategies for redox molecules are highlighted. The different organic redox couples described in the literature are grouped in a “family tree” for organic redox couples. This article is designed to be an introduction to the field of organic redox flow batteries and aims to provide an overview of current achievements as well as helping synthetic chemists to understand the basic concepts of the technical requirements for next-generation energy storage materials.

Integration of Core-Edge Spectroscopy Methods for the Study of Polymers

1996 ◽  
Vol 54 ◽  
pp. 154-155
Author(s):  
E. G. Rightor
Keyword(s):  
Excited State ◽  
Polymer Blends ◽  
Gas Phase ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Electronic States ◽  
Core Electron ◽  
Bulk Solids ◽  
Development Application

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.

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