Carbon dioxide conversion to hydrocarbons at silver electrode surfaces: Raman Spectroscpic evidence for surface carbon intermediates
✍ Scribed by Merrick R. Mahojey; Martin W. Howard; Ralph P. Cooney
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 377 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Intense Raman spectra from sllvcr electrode surfaces at -0 2 V (SCE) m 0.1 M KF (and other electrolyte) solutions are interpreted 111 terms of graphltic carbon surface layers. Sunilar spectra have been recorded from dry silvzr surfaces poLished III an atmosphere of au or COz. The source of carbon in the electrochemxal studies appears to be atmospheric CO2 which generates the electroacttve spenes aquated CO2 (at pH 5.5) and CO:-(atpH 11). It appears probable that CO2 tn its solutton form IS electroreduced to an unstable stlver surface-formate complex wtuch in turn spontaneously decomposes to carbon.