Fast screening of carbon-based nanostructured materials as potential electrode materials for vanadium redox flow battery

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F22%3A43965977" target="_blank" >RIV/49777513:23640/22:43965977 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/22:43925225

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0013468622012002?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468622012002?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2022.141043" target="_blank" >10.1016/j.electacta.2022.141043</a>

Result language

angličtina

Original language name

Fast screening of carbon-based nanostructured materials as potential electrode materials for vanadium redox flow battery

Original language description

Carbon-based nanostructured materials possess good electrochemical activity toward vanadium species employed in vanadium redox flow batteries (VRFB). However, fast screening and testing their electrochemical activity are challenging due to unreliable methods, depositing the nanomaterials onto solid current collectors. We show that creating a nanomaterial fixed bed on a planar current collector in a specifically designed electrochemical cell overcomes these problems. The fixed bed preserves the nanomaterial intrinsic large interfacial area, which reflects in the electric currents reaching up to two orders higher values when compared to flat electrodes. Using the concept of the fixed bed, we screened selected carbon-based materials for their electrochemical activity in a working solution of vanadium. Cyclic voltammograms measured on various carbon nanotubes and fibers of thermally treated graphite felt possessed the well-defined peaks pertinent to vanadium electrochemical reactions. Surprisingly, nickel-doped carbon nanotubes, similarly to fibers of pristine graphite felt or graphene, failed to produce such peaks, rendering them unusable for VRFB. Our screening method can be modified to characterize and test carbon materials for other electrochemical applications.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/EF16_025%2F0007445" target="_blank" >EF16_025/0007445: Organic redox couple based batteries for energetics of traditional and renewable resources.</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ELECTROCHIMICA ACTA

ISSN

0013-4686

e-ISSN

1873-3859

Volume of the periodical

430

Issue of the periodical within the volume

OCT 20 2022

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

nestrankovano

UT code for WoS article

000863286200002

EID of the result in the Scopus database

2-s2.0-85138441463