Charge transfer event

In general, electrode reactions with more than one charge transfer event occur in successive steps with participation of intermediates and these... 

Photonic electrochemistry, taken in its most general sense, involves the intimate interaction of light with electrochemical processes. Thus, piocesses in which illumination of the electrode-electrolyte interface produces charge-transfer events as well as electrochemical reactions that produce light as a product (electrochemiluminescence, ECL) fall in this category. A third related area is the elec-troanalytical detection of transient species formed by a photochemical process which takes place in solution. Techniques such as spectroelectrochemistry are excluded from consideration, since they utilize photons as a nonperturbing probe of purely electrochemical processes. 

Sometimes conformational changes are required to trap the intramolecular charge transfer events [54,125]. As represented in Fig. 10, an electron-hole pair pro-... 

Kamat, P. V. Photoelectrochemistry in semiconductor particulate systems. 14. Picosecond charge-transfer events in the photosensitization of colloidal Ti02, Langmuir 1990, 6, 512. 

For a reaction scheme involving n charge transfer events prior to the rate-determining step (for most electrode reactions n > 3), the Tafel slopes work out to be... 

Current and potential control over such processes are still maintained, via the redox states of electroactive species in the two-dimensional phase in electrochemical contact with the electrode, despite the considerable distance that is traversed by the electron. Diffusion control of the charge transfer event was also observed. 

The possible processes resulting from the BH + reaction include inelastic scattering and charge transfer events which can produce different electronic states of [BH]"" depending on the relative orientation of colliding partners during their encounters [6]. 

Figure 5.4 Energy level diagram and timescales of charge transfer events following light excitation in photosystem II.

In the second part we will discuss recent results on electron transfer into discrete states and charge transfer events which involve more than one electron, e.g., capture to continuum and "transfer ionization". 

Schlundt S, Kuzmanich G, Spanig F, et al Dendritic porphyrin-fifllerene conjugates efficient light-harvesting and charge-transfer events, Chem EurJ 15 12223—12233, 2009. 

Fig. 11.12 Schematic model of the Antoniewicz model for excitation-induced desorption from surfaces. The vertical dashed arrow corresponds to the initial charge transfer event, placing the adsorbate on an ionized adsorbate potential energy surface. Prompt re-neutralization back to the neutral adsorbed potential energy surface results in the adsorbate retaining sufficient kinetic energy ( KE ) for desorption (Reprinted with permission from Ref. [85]. Copyright 1980 American Physical Society)...

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