J 2020

Electrochemical Hydrogen Storage Properties of Graphene Coating Formed by Electrophoretic Deposition

GHORBANI, Reza a Sahand BEHRANGI

Základní údaje

Originální název

Electrochemical Hydrogen Storage Properties of Graphene Coating Formed by Electrophoretic Deposition

Autoři

GHORBANI, Reza a Sahand BEHRANGI

Vydání

SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY, MOSCOW, PLEIADES PUBLISHING INC, 2020, 1068-3755

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 0.289 v roce 2012

DOI

UT WoS

000524239200003

Klíčová slova anglicky

hydrogen storage; grapheme; discharge capacity; coating; electrophoretic deposition

Štítky

Změněno: 25. 11. 2021 16:05, Sahand Behrangi, M.Sc.

Anotace

V originále

In this study, electrochemical hydrogen storage properties of graphene coatings were investigated. X-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy, and galvanostatic charge/discharge measurements were used to characterize the materials properties. Graphene oxide was prepared using a modified Hummers method. A graphene coating was fabricated by electrophoretic deposition. Results showed that a graphene-coated copper electrode, as a low-cost and low-weight electrode, has a good charge/discharge capacity that makes it a promising candidate for electrochemical hydrogen storage applications. The highest discharge capacity obtained for a coated electrode was 45 mA h g(-1), while the discharge capacity of a bare copper electrode was only 2 mA h g(-1). A high capacity of the graphene coating is due to defects of the graphene structure such as wrinkles, crumples, etc., and oxygen-functional groups attached to graphene during syntheses process.