Publication detail

Capacity of a glassy carbon electrode in propylene carbonate based electrolytes

VONDRÁK, J. SEDLAŘÍKOVÁ, M. MACALÍK, M. VELICKÁ, J.

Original Title

Capacity of a glassy carbon electrode in propylene carbonate based electrolytes

Type

journal article - other

Language

English

Original Abstract

The capacity of glassy carbon in aprotic salt solutions in propylene carbonate (PC) is investigated as an approach to the optimalisation of electrochemical supercapacitors. The strong influence of water residuum on capacities at negative potentials is indicated. The capacities exhibit a shallow minimum at potential from 0 V to +0.5 V (vss. Cd/Cd2+ reference electrode) and they increase with increasing electrolyte concentration. The admittance of the electrode in pure PC (as received) is by 2 - 3 orders of magnitude smaller. Undoubtedly, the properties of ions in solution influence the capacity by a factor not exceeding 2 to 5.

Keywords

Glassy carbon, capacity, electrolyte, propylene carbonate

Authors

VONDRÁK, J.; SEDLAŘÍKOVÁ, M.; MACALÍK, M.; VELICKÁ, J.

RIV year

2010

Released

7. 12. 2010

ISBN

1802-4564

Periodical

ElectroScope - http://www.electroscope.zcu.cz

Year of study

2010

Number

4

State

Czech Republic

Pages from

2-1

Pages to

2-4

Pages count

4