Edge-plane pyrolytic graphite

Fig. 2.52 Raw square-wave voltammetry data of azurin immobilized on edge plane pyrolytic graphite electrode (PGE) (pH 4.0, 2.0 mol/L NaCl) at different frequencies with = 0.15 V. Dashed line, forward current. Dotted line, backward current. Solid thick line, net current solid thin line, blank net current (reprinted from [101] with permission)...

Fig. 11.22. Example structures for monolayer covalent bonding to edge plane pyrolytic graphite electrodes. (Reprinted from Techniques of Chemistry, Molecular Design of Electrode Surfaces, R. W. Murray, ed., Vol. 22, p. 143. Copyright 1992 John Wiley Sons. Reprinted by permission of John Wiley Sons, Inc.)...

Figures 5.4 and 5.5 summarize results of a recent study of P. versicolor laccase electrochemistry based on cyclic and rotating disk voltammetry [60]. Figure 5.4 shows unequivocally that this laccase is voltammetrically active and gives a kinetically controlled, unpromoted four-electron peak at edge-plane pyrolytic graphite. Electrochemical reduction of 02 catalyzed by an immobilized laccase monolayer is close to reversible, and unrestricted by mass transport. The electrocatalysis follows, moreover, a Michaelis-Menten pattern (Fig. 5.5). Finally, there is a characteristic bell-shaped functional pH-profile with a pronounced maximum at pH 3.1.

Figure 3.6 (a) Schematic representation of the layered structure of HOPC with the indication of the different edge and basal planes, (b) Voltammetric response of Fe(CN)63 /4 using basal-plane, edge-plane pyrolytic graphite and CNT electrodes, (c)... 

Mediated catalytic electrochemistry of chicken SO was first reported by Coury et al. at an edge plane pyrolytic graphite electrode employinga variety of... 

Shi, C. and F. C. Anson (1990). Catalytic pathways for the electroreduction of oxygen by iron tetrakis(4-iV-methylpyridyl)porphyrin or iron tetraphenylporphyrin adsorbed on edge plane pyrolytic graphite electrodes. Inorg. Chem. 29, 4298-4305. 

Banks, C.E. and Compton, R.G. (2005) Exploring the electrocatalytic sites of carbon nanotubes for NADH detection an edge plane pyrolytic graphite electrode study. Analyst, 130 (9), 1232-1239. 

Richards G, Swavey S (2009) Electrooxidation of Fe, Co, Ni and Cu metalloporphyrins on edge-plane pyrolytic graphite electrodes and their electrocatalytic ability towards the reduction of molecular oxygen in acidic media. Eur J Inorg Chem 35 5367-5376... 

SWV—square wave voltammetry CV—cyclic voltammetry PG—ordinary basal plane pyrolytic graphite EPG—edge plane pyrolytic graphite ITO— indium tin ojside. 

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