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Chemical Modification Of Cvd Diamond Electrodes, Robert Matthew Johnson
Chemical Modification Of Cvd Diamond Electrodes, Robert Matthew Johnson
Chemistry & Biochemistry Theses & Dissertations
The micro-array behavior of boron doped CVD diamond thin film electrodes has been studied in acetonitrile containing two redox couples. The analytical technique employed in these studies was cyclic voltammetry. One system is 0.4 mM ferrocene containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAH). This reversible redox system is not only well-known, but also involves only one electron transfer with no breakage/formation of chemical bonds, thus making it a simple system for analysis. The second test is 0.8 mM cobaltocenium hexafluorophosphate, with 0.4 mM ferrocene as an internal standard. Unlike ferrocene, which is neutral initially, cobaltocenium is positively charged, and is reduced …
The Extraction And Coordination Chemistry Of An Organophosphorus Ligand: The Synthesis And Characterization Of Organophosphorus Ligands And Dendrimers Using The Michael-Type Addition, Evelyn M. Bond
Chemistry and Chemical Biology ETDs
In chapter 1, the liquid/ liquid extraction of americium (III) from nitric and hydrochloric acid solutions with chloroform solutions of 2, 6 bis[ (diphenylphosphino) methyl] pyridine N, P. P' trioxide (ENOPOPO) is examined. Americium (III) is efficiently extracted from aqueous solutions at high nitric acid concentrations (Dam> 3000 at 6 M HNO3. The ligand dependency data suggest that two ligand molecules are coordinated to the americium. From hydrochloric acid solutions, ENPOPO exhibits modest extraction ability for americium (III) (Dam = 2.2 at5 M HCL) and can be efficiently back extracted from the organic phase at 0.1 M HCL. The ligand …