ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract An approach to electro-organic synthesis has been developed using a composite or multiphase electrode where the solid, insoluble reactant is incorporated into a compacted powder electrode system. This has been achieved by intimately mixing the finely dispersed organic solid into a paste with graphite powder and an aqueous electrolyte. The paste was then spread between a graphite felt sandwich. A cell capable of utilizing 500 mg of organic material and achieving current densities of 3 A dm−2 (6 A g−1 of organic material) has been developed, and in such a systemp-dinitrobenzene has been reduced top-nitrophenylhydroxylamine in 1 M H2SO4 (28% yield). Reduction at a potential 100 mV more cathodic than that required for the production ofp-nitrophenylhydroxylamine, followed by reoxidation at +180 mV, gavep-benzoquinone with 34% yield. The electrode performance has been found to depend on its overall thickness, the size of the particles and the graphite content.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01093353
