scholarly journals High Performance Reduction/Oxidation Metal Oxides for Thermochemical Energy Storage (PROMOTES)

2016 ◽  
Author(s):  
James E. Miller ◽  
Andrea Ambrosini ◽  
Sean M. Babiniec ◽  
Eric N. Coker ◽  
Clifford K. Ho ◽  
...  
Keyword(s):  
Energy Storage ◽  
Metal Oxides ◽  
High Performance ◽  
Electricity Production ◽  
Power Cycles ◽  
Redox Active ◽  
Active Metal ◽  
Performance Reduction ◽  
Mixed Ionic Electronic Conductors ◽  
Electronic Conductors

Thermochemical energy storage (TCES) offers the potential for greatly increased storage density relative to sensible-only energy storage. Moreover, heat may be stored indefinitely in the form of chemical bonds via TCES, accessed upon demand, and converted to heat at temperatures significantly higher than current solar thermal electricity production technology and is therefore well-suited to more efficient high-temperature power cycles. The PROMOTES effort seeks to advance both materials and systems for TCES through the development and demonstration of an innovative storage approach for solarized Air-Brayton power cycles and that is based on newly-developed redox-active metal oxides that are mixed ionic-electronic conductors (MIEC). In this paper we summarize the system concept and review our work to date towards developing materials and individual components.

scholarly journals High Performance Reduction/Oxidation Metal Oxides for Thermochemical Energy Storage (PROMOTES) /CSP

2018 ◽  
Author(s):  
Andrea Ambrosini ◽  
Peter Loutzenhiser ◽  
Sheldon Jeter ◽  
Ellen Stechel ◽  
Hany Al-Ansary
Keyword(s):  
Energy Storage ◽  
Metal Oxides ◽  
High Performance ◽  
Performance Reduction

scholarly journals Mixed Ionic-Electronic Conductors Based on PEDOT:PolyDADMA and Organic Ionic Plastic Crystals

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1981
Author(s):  
Rafael Del Olmo ◽  
Nerea Casado ◽  
Jorge L. Olmedo-Martínez ◽  
Xiaoen Wang ◽  
Maria Forsyth
Keyword(s):  
Energy Storage ◽  
Ionic Conductivity ◽  
Electronic Devices ◽  
Electronic Conductivity ◽  
Ionic Conductivities ◽  
New Materials ◽  
Plastic Crystals ◽  
Energy Storage Applications ◽  
Mixed Ionic Electronic Conductors ◽  
Electronic Conductors

Mixed ionic-electronic conductors, such as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) are postulated to be the next generation materials in energy storage and electronic devices. Although many studies have aimed to enhance the electronic conductivity and mechanical properties of these materials, there has been little focus on ionic conductivity. In this work, blends based on PEDOT stabilized by the polyelectrolyte poly(diallyldimethylammonium) (PolyDADMA X) are reported, where the X anion is either chloride (Cl), bis(fluorosulfonyl)imide (FSI), bis(trifluoromethylsulfonyl)imide (TFSI), triflate (CF3SO3) or tosylate (Tos). Electronic conductivity values of 0.6 S cm−1 were achieved in films of PEDOT:PolyDADMA FSI (without any post-treatment), with an ionic conductivity of 5 × 10−6 S cm−1 at 70 °C. Organic ionic plastic crystals (OIPCs) based on the cation N-ethyl-N-methylpyrrolidinium (C2mpyr+) with similar anions were added to synergistically enhance both electronic and ionic conductivities. PEDOT:PolyDADMA X / [C2mpyr][X] composites (80/20 wt%) resulted in higher ionic conductivity values (e.g., 2 × 10−5 S cm−1 at 70 °C for PEDOT:PolyDADMA FSI/[C2mpyr][FSI]) and improved electrochemical performance versus the neat PEDOT:PolyDADMA X with no OIPC. Herein, new materials are presented and discussed including new PEDOT:PolyDADMA and organic ionic plastic crystal blends highlighting their promising properties for energy storage applications.

Controllable fabrication of redox-active conjugated microporous polymers on reduced graphene oxide for high performance faradaic energy storage

2018 ◽  
Vol 6 (39) ◽  
pp. 18827-18832 ◽  
Author(s):  
Abdul Muqsit Khattak ◽  
Haksong Sin ◽  
Zahid Ali Ghazi ◽  
Xiao He ◽  
Bin Liang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Microporous Polymers ◽  
Redox Active ◽  
Microporous Polymer ◽  
Reduced Graphene ◽  
Controllable Fabrication ◽  
Conjugated Microporous Polymers

Two-dimensional (2D) composites composed of redox active conjugated microporous polymer (CMP) and reduced graphene oxide (rGO) enable efficient faradaic energy storage.

Operation Mechanism of Organic Electrochemical Transistors as Redox Chemical Transducers

2021 ◽  
Author(s):  
Siew Ting Melissa Tan ◽  
Scott Keene ◽  
Alexander Giovannitti ◽  
Armantas Melianas ◽  
Maximilian Moser ◽  
...  
Keyword(s):  
Charge Density ◽  
Operation Mechanism ◽  
Density Dependent ◽  
Redox Active ◽  
Electrochemical Redox ◽  
Redox Sensors ◽  
Mixed Ionic Electronic Conductors ◽  
Chemical Transducers ◽  
Electronic Conductors ◽  
Organic Electrochemical Transistors

The ability to control the charge density of organic mixed ionic electronic conductors (OMIECs) via reactions with redox-active analytes has enabled applications as electrochemical redox sensors. Their charge density-dependent conductivity...

Si/NiCo2O4 heterostructures electrodes with enhanced performance for supercapacitor

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62813-62818 ◽  
Author(s):  
Mingze Ma ◽  
Jing Guo ◽  
Yufei Zhang ◽  
Ziyang Dai ◽  
Wei Huang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Synergistic Effect ◽  
Metal Oxides ◽  
High Performance ◽  
Electrochemical Energy Storage ◽  
Silicon Doped ◽  
Electrochemical Energy

Silicon doped metal oxides are potential materials for high-performance electrochemical energy storage because of the synergistic effect.

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