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Energy storing bricks for stationary PEDOT supercapacitors.


ABSTRACT: Fired brick is a universal building material, produced by thousand-year-old technology, that throughout history has seldom served any other purpose. Here, we develop a scalable, cost-effective and versatile chemical synthesis using a fired brick to control oxidative radical polymerization and deposition of a nanofibrillar coating of the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT). A fired brick's open microstructure, mechanical robustness and ~8?wt% ?-Fe2O3 content afford an ideal substrate for developing electrochemical PEDOT electrodes and stationary supercapacitors that readily stack into modules. Five-minute epoxy serves as a waterproof case enabling the operation of our supercapacitors while submerged underwater and a gel electrolyte extends cycling stability to 10,000 cycles with ~90% capacitance retention.

SUBMITTER: Wang H 

PROVIDER: S-EPMC7419536 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Energy storing bricks for stationary PEDOT supercapacitors.

Wang Hongmin H   Diao Yifan Y   Lu Yang Y   Yang Haoru H   Zhou Qingjun Q   Chrulski Kenneth K   D'Arcy Julio M JM  

Nature communications 20200811 1


Fired brick is a universal building material, produced by thousand-year-old technology, that throughout history has seldom served any other purpose. Here, we develop a scalable, cost-effective and versatile chemical synthesis using a fired brick to control oxidative radical polymerization and deposition of a nanofibrillar coating of the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT). A fired brick's open microstructure, mechanical robustness and ~8 wt% α-Fe<sub>2</sub>O<sub>3</sub>  ...[more]

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