Introduction of Carboxyl Functional Groups onto Platinum by RF Plasma Deposition

Citation

Leber, Elizabeth R. & Ratner, Buddy D. (2009). Introduction of Carboxyl Functional Groups onto Platinum by RF Plasma Deposition. Plasma Processes and Polymers, 6(4), 219-227.

Abstract

Radio frequency (RF) plasma deposition of acrylic acid was used to generate carboxyl functional groups on a platinum surface serving as a model of a platinum electrode. The groups were retained at around 11% of the carbon content of the surface as measured using electron spectroscopy for chemical analysis (ESCA) following challenges of water soaks and acidic and basic conditions. Angle-dependent ESCA showed the percentage of carboxyl groups decreased with depth and supported our hypothesis that the plasma deposited acrylic acid bonds to the platinum by penetrating into the uppermost layer of the platinum. The carboxyl groups were generated on the platinum surface in sufficient number to be used for further modification of the surface.

Keyword(s)

electrode
ESCA/XPS
plasma treatment
platinum
surface modification

Reference Type

Journal Article

Secondary Title

Plasma Processes and Polymers

Author(s)

Leber, Elizabeth R.
Ratner, Buddy D.

Year Published

2009

Date Published

1230768000

Volume Number

6

Issue Number

4

Pages

219-227

ISSN/ISBN

1612-8869

DOI

10.1002/ppap.200800110