Zobrazeno 1 - 10
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pro vyhledávání: '"Dennis C. Johnson"'
Autor:
Dennis C. Johnson, Brett K. Simpson
Publikováno v:
Electroanalysis. 16:532-538
The cathodic reduction of NO in 1.0 M HClO4 is investigated by voltammetry at pure Ni and Cu electrodes, and three Cu-Ni alloy electrodes of varying composition, all configured as rotated disks. Voltammetric data obtained using these hydrodynamic ele
Autor:
Brett K. Simpson, Dennis C. Johnson
Publikováno v:
Electroanalysis. 15:97-102
The oxidation of dimethyl sulfoxide (DMSO) to dimethyl sulfone (DMSO2) is representative of numerous anodic oxygen-transfer reactions of organosulfur compounds that suffer from slow kinetics at noble metal electrodes. Anodic voltammetric data for DMS
Publikováno v:
Analytica Chimica Acta. 449:111-117
A strategy for electrochemical detection (ED), based on digital integration of the current response at a Au electrode resulting from a square potential–time waveform, is applied for the direct detection of organic polyamines in complex samples foll
Autor:
Sun-il Mho, Dennis C. Johnson
Publikováno v:
Journal of Electroanalytical Chemistry. 500:524-532
The voltammetric responses observed for carbohydrates and polyalcohols at ∼0.60 V in 0.10 M NaOH are significantly larger at preanodized CuMn (95:5) electrodes as compared to preanodized pure Cu electrodes. Apparent values for the number of electro
Autor:
Dennis C. Johnson, Sun-il Mho
Publikováno v:
Journal of Electroanalytical Chemistry. 495:152-159
The anodic voltammetric responses obtained for ethylenediamine and representative amino acids in 0.10 M NaOH (>0.5 V vs. SCE) are significantly larger at preanodized CuMn (95:5) and CuMn (90:10) rotated disk electrodes as compared to the responses at
Autor:
Dennis C. Johnson, In-Hyeong Yeo
Publikováno v:
Journal of Electroanalytical Chemistry. 495:110-119
Voltammetric and chronoamperometric response characteristics are summarized for glucose, cysteine and glycine over the potential range 0.00–0.70 V versus SCE at NiCu alloy electrodes in 0.10 M NaOH. The response observed for all NixCu100−x ele
Publikováno v:
Electrochimica Acta. 46:323-330
The goals of research reported here include the discovery of optimal electrocatalytic materials and electrolysis conditions for rapid degradation of organic compounds to CO2(g). Concepts of the designated procedure are summarized with emphasis on the
Publikováno v:
Journal of Electroanalytical Chemistry. 492:70-73
The ring electrode of a Au–Au rotating ring-disk electrode was used to monitor the concentrations of I − and I 2 during oscillations in current that occur during I − oxidation at the disk electrode. With the ring electrode poised at a potential
Autor:
Dennis C. Johnson, In-Hyeong Yeo
Publikováno v:
Journal of Electroanalytical Chemistry. 484:157-163
The anodic response of glucose is compared for three Cu-based alloy electrodes (Ni10Cu90, Fe3Cu97 and Mn5Cu95) with that observed for a pure Cu electrode in the approximate potential region 0.00–0.80 V versus SCE in 0.10 M NaOH. Only the response a
Publikováno v:
Electroanalysis. 12:248-254
A voltammetric comparison is presented for the anodic response of ethylamine at Ag, Au and Au80Ag20 rotated disk electrodes (RDEs) in carbonate buffer (pH 11.2). This study is part of a systematic search for unique anodic response mechanisms at binar