Direct cytochrome c electrochemistry at boron-doped diamond electrodes

Marken, Frank; Paddon, Christopher A.; Asogan, Dhinesh

doi:10.1016/s1388-2481(01)00272-7

Cited by 79 publications

(73 citation statements)

References 24 publications

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“…Well-defined, quasi-reversible, voltammetric response is detected, with peak-to-peak separation of consistently 110 mV and i p, a /i p, c ¼ 0.9 (calculated using the baseline corrections). The calculated values for the heterogeneous transfer constant K 0 were between 6 and 9 Â 10 À4 cm/s; that is the same order of magnitude compared to the reported values for glassy carbon and B-doped diamond electrodes [13]. A linear dependence between the anodic current and the square root of the scan rate indicates that the redox species were in solution.…”

Section: Electrochemical Characterizationsupporting

confidence: 78%

Titanium Carbide Thin‐Film Electrodes: Characterization and Evaluation as Working Electrodes

Lupu¹,

Compagnone²,

Orlanducci³

et al. 2004

Electroanalysis

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Section: Electrochemical Characterizationsupporting

confidence: 78%

Titanium Carbide Thin‐Film Electrodes: Characterization and Evaluation as Working Electrodes

Lupu¹,

Compagnone²,

Orlanducci³

et al. 2004

Electroanalysis

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“…The reference electrode used was a saturated calomel electrode, SCE (Radiometer, Copenhagen), kept at 20 8C and connected to the cell via a salt bridge. A pretreatment was applied to the BDD electrode consisting on polishing using diamond paste 1 mm and then activation by cycling at 0.1 V s À1 between 0.0 and 5.0 Vunder vigorous stirring in 1 M HNO 3 solution until a stable signal was obtained [17].…”

Section: Methodsmentioning

confidence: 99%

Electrodeposition of Lead at Boron‐Doped Diamond Film Electrodes: Effect of Temperature

et al. 2003

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The electrodeposition of lead on boron-doped diamond has been studied with a view to identifying the fundamental parameters controlling the sensitivity and lower detection limit in anodic stripping voltammetry. Chronoamperometric transients are used to explore the deposition, indicating a progressive growth mechanism confirmed by ex situ AFM images. Linear sweep ASV experiments show a threshold concentration of ca 10 À6 M below which no lead is detected; this is attributed to the need for nucleation of the solid phase on the electrode. Experiments with variable temperature show that this threshold can be usefully lowered at elevated temperatures.

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“…However, even for boron-doped diamond materials the reactivity towards electron transfer, adsorption, or metal deposition processes may vary considerably upon chemical changes at the electrode surface. Although diamond is one of the hardest materials known, surface polishing with conventional metal oxide or diamond slurries can be used to −renew× or condition the surface [50]. This method works particularly well for flat (industrially polished and free standing) boron-doped diamond electrodes.…”

mentioning

confidence: 99%

“…4. SEM images of A) a polycrystalline boron-doped diamond electrode grown by CVD technique [8] and B) a commercial polished boron-doped diamond electrode [50]. From the range of diamond-like carbon materials tetrahedral amorphous carbon with nitrogen doping (taC : N) appears to be a most interesting electrode material [58] for applications in electroanalysis.…”

mentioning

confidence: 99%

Electroanalysis at Diamond‐Like and Doped‐Diamond Electrodes

2003

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Diamond as a high performance material occupies a special place due to its in many ways extreme properties, e.g., hardness, chemical inertness, thermal conductivity, optical properties, and electric characteristics. Work mainly over the last decade has shown that diamond also occupies a special place as an electrode material with interesting applications in electroanalysis. When made sufficiently electrically conducting for example by boron-doping, −thin film× and −free ± standing× diamond electrodes exhibit remarkable chemical resistance to etching, a wide potential window, low background current responses, mechanical stability towards ultrasound induced interfacial cavitation, a low −stickiness× in adsorption processes, and a high degree of −tunability× of the surface properties. This review summarizes some of the recent work aimed at applying conductive (boron-doped) diamond electrodes to improve procedures in electroanalysis.

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Direct cytochrome c electrochemistry at boron-doped diamond electrodes

Cited by 79 publications

References 24 publications

Titanium Carbide Thin‐Film Electrodes: Characterization and Evaluation as Working Electrodes

Titanium Carbide Thin‐Film Electrodes: Characterization and Evaluation as Working Electrodes

Electrodeposition of Lead at Boron‐Doped Diamond Film Electrodes: Effect of Temperature

Electroanalysis at Diamond‐Like and Doped‐Diamond Electrodes

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