Applications of SCF Electrochemistry

Better results were obtained at Pt than at Pb electrodes, with a higher faradaic efficiency for the formation of oxalate in the supercritical state. One very interesting recent contribution in this area was made by Mendez et al. [85], who used a liquid-liquid interface between SCCO2 and water to carry out the photoreduction of CO2 to CO using ruthenium tris(2,2 -bipyridyl) as the dye, and nickel cyclam as the catalyst. 

As has been seen, electrochemistry in plasmas and SCFs is possible but presents significant challenges. Nevertheless, both areas offer interesting challenges and opportunities with prospects for novel technological applications. Notably, both areas have benefitted - and will continue to benefit - from innovations originated by Martin Fleischmann. 

These studies were part of the Supercritical Fluid Electrodeposition project (www. scfed.net), a multidisciplinary collaboration of British universities investigating the fundamental and applied aspects of supercritical fluids funding by a Programme Grant from the EPSRC (EP/1013394/1). 

Uchimoto, Y., Okada, T., Ogumi, Z. and Takehara, Z. (1994) Vapour phase electrolytic deposition a novel method for preparation of orientated thin films. Journal of the Chemical Society, Chemical Communications, 585-586. 

Richmonds, C., Witzke, M., Battling, B. et al. (2011) Electron-transfer reactions at the plasma-liquid interface. Journal of the American Chemical Society, 133, 17582-17585. 

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