Electrode modifier

Electrode potentials are customarily tabulated on the standard hydrogen electrode (SHE) scale (although the SHE is never actually used experimentally because it is inconvenient in many respects). Therefore, conversion of potentials into the UHV scale requires the determination of E°(H+/H2) vs. UHV. According to the concepts developed above, such a potential would measure the energy of electrons in the Pt wire of the hydrogen electrode, modified by the contact with the solution. 

Convert P, Countanceau C, Cromgneau P, Gloaguen F, Lamy C (2001) Electrodes modified by electrodeposition of CoTAA complexes as selective oxygen cathodes in a direct methanol fuel cell. J Appl Electrochem 31 945-952... 

Magnetic field effects on the photoelectrochemical reactions of photosensitive electrodes are very important for practical applications of the MFEs in controlling the photoelectronic functions of molecular devices. Previously, we have examined MFEs on the photoelectrochemical reactions of photosensitive electrodes modified with zinc-tetraphenylporphyrin-viologen linked compounds [27, 28] and semiconductor nanoparticles [29, 30[. However, MEEs on the photoelectrochemical reactions of photosensitive electrodes modified with nanoclusters have not yet been reported. 

Effects of Magnetic Processing on the Morphological, Electrochemical, and Photoelectrochemical Properties of Electrodes Modified with Cgo-Phenothiazine Nanoclusters... 

We examined the effects of magnetic processing on the morphological, electrochemical, and photoelectrochemical properties of electrodes modified with nanoclusters of CfioN and MePH (Figure 15.4) using a strong magnetic field [49]. 

The redox potentials of the ITO electrodes modified with CgoN -MePH clusters were measured by cyclic voltammetry and differential pulse voltammetry in the absence and presence of magnetic processing. 

The photoelectrochemical properties of ITO electrodes modified with CeoN -MePH clusters were also measured in the presence and absence of magnetic... 

We demonstrated that the morphology of nanostructures, electrochemical, and photoelectrochemical properties in the electrodes modified with nanodusters of Qo can be controlled by applying a strong magnetic field. The present study provides useful information for designing novel nanodevices whose photofunctions can be controlled by a magnetic field. 

Magnetic Field Effects on Photoelectrochemical Reactions of Electrodes Modified with the Ceo Nanocluster-Phenothiazine System... 

Asa study of spin chemistry at solid/liquid interfaces, we have examined M F Es on the photoelectrochemical reactions of photosensitive electrodes modified with nanoclusters containing CgoN and MePH (Figure 15.4), intended for utilization of C o as photofunctional nanodevices. 

Figure 15.10 (a) AFM image and schematic illustration of electrode modified with nanocluster of QqN and MePH. (b) Magnetic field dependence on Q-values. 

Yonemura, H., Yamamoto, Y. and Yamada, S. (2008) Photoelectrochemical reactions of electrodes modified with composites between conjugated polymer or ruthenium complex and single-walled carbon nanotube. Thin Solid Films, 516, 2620-2625. 

Yonemura, H., Wakita, Y, Kuroda, N., Yamada, S., Fujiwara, Y. and Tanimoto, Y. (2008) Effects of magnetic processing on electrochemical and photoelectrochemical properties of electrodes modified with C )-phenothiazine nanoclusters. ]pn. J. Appl. Phys., 47, 1178-1183. 

Henero E, Femandez-Vega A, Feliu JM, Aldaz A. 1993. Poison formation reaction from formic acid and methanol on platinum (111) electrodes modified by irreversibly adsorbed bismuth and arsenic. J Electroanal Chem 350 73-88. 

Llorca MJ, Herrero E, FeUu JM, Aldaz A. 1994a. Fomtic acid oxidation on Pt(lll) electrodes modified by irreversibly adsorbed selenium. J Electroanal Chem 373 217-225. 

Figure 7.1 Cyclic voltamograms of Pt(l 11) electrodes modified by Bi, Sb, As, and Te deposition at intermediate coverages, as indicated, in 0.5 M H2SO4 solution. Sweep rate 50 mV/s.

Figure 7.10 Potential of maximum entropy (PME) of a Pt(lll) electrode modified by Bi, Pb, Se, and S deposition in 1 mM HCIO4 + 0.1 M KCIO4 solution, as a function of adatom coverage. The dashed, zero-slope line corresponds to the averaged reference PME value of unmodified Pt(lll). The cartoons show the schematic interpretation for the effect of the adatoms at high coverage on the potential transients. (Reprinted with permission from Garcia-Araez et al. [2008].)...

Coutanceau C, Crouigneau P, Leger JM, Lamy C. 1994. Mechanism of oxygen electroreduction at pol3fpyrrole electrodes modified by cobalt phthalocyanine. J Electroanal Chem 379 389-397. 

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