Photochemical energy conversion

H. B. Gray We must remember that we are still in the initial stages of systematic study of inorganic oxidation-reduction photochemistry. Nature has indeed some slick ways to optimize photochemical energy conversion. I am confident that inorganic chemists will do as well or better, perhaps even before the turn of the century ... 

The photochemical and photophysical properties of Ru(bpy)3 and related d° polypyridine complexes have been the subject of intense recent interest (43-49). This is due to their potential in photochemical energy conversion, their intrinsically significant excited state behavior, and their attractive chemical properties. The structures of the excited states of these complexes are clearly of great interest. 

Norris J, Meisel D (eds) (1989) Photochemical energy conversion. Elsevier, New-York... 

Photochemical Energy Conversion , ed. J.R. Norris and D. Meisel, Elsevier, New York, 1989. 

Based on photosynthesis and the energy cycie on the earth, an artificial photosynthetic system was proposed (Fig. 19.2) tc create fuels from solar energy and water by utilizing photocatalytic reactions.95 This scheme takes minimum requirements to achieve photochemical energy conversion. 

Henglein, A. Weller, H. Colloidal semiconductors Size quantization, sandwich structures, photo-electron emission, and related chemical effects, Photochemical Energy Conversion, J. R. Norris, Jr. and D. Meisel, eds., Elsevier New York, 1989. 

Greene RM, Geider RJ, Kolber Z, Falkowski PG (1992) Iron-induced changes in light harvesting and photochemical energy conversion processes in eukaryotic marine algae. Plant Physiol 100(2) 565-575... 

Electrochemical interfaces play a crucial role in analytical, synthetic and materials chemistry, as well as in chemical and photochemical energy conversion. However, a longstanding difficulty for fundamental studies of the dynamical and stractural... 

Photochemical energy conversion using semiconductor electrodes has been discussed. Semiconductor based particles in a dual-bed configuration have been used for the solar photocatalytic production of hydrogen from water. In one vessel an oxidative transformation occurs by means of which molecular oxygen is... 

Durrant J. R., Haque S. A. and Palomares E. (2006), Photochemical energy conversion from molecular dyads to solar cells , Chem. Comm., 3279-3289. 

In photochemical processes for solar energy storage, photon absorption either creates a molecular excited state or stimulates an interband electronic transition in a semiconductor, which induces a molecular change. Comprehensive reviews, including those by Gratzel (1980), Kalyanasundaram (1982) and Harriman (1986-7), have discussed various aspects of photochemical energy conversion. A photoactivated molecular excited state can drive either i) photodissociation ii) photoisomerisation or iii) photoredox reactions. Processes based on semiconductors may involve photovoltaic or photoelectrochemical systems. 

Surface photochemistry is by no means a new topic. Photocatalysis and photochemical energy conversion at solid surfaces have been studied for many years. These areas have been reviewed elsewhere.i A more recent interest is in the... 

R. Memming and J. J. Kelly, in Proceedings of the International Conference on Photochemical Energy Conversion and Storage, p. 243, Academic Press, New York (1981). 

Photoinduced redox reactions constitute the basis of almost all photochemical energy conversion processes presently under investigation. Their kinetic and mechanistic features have been widely studied in the past77-80 and only the most important aspects will be considered here. 

Taking photosynthesis as a model for photochemieal solar energy conversion, an artifieial photosynthetie system has been proposed for the creation of fuels from solar energy and water by utilizing photocatalytic reactions (Fig. 13-3) [9], This scheme considers the minimum requirements for achieving photochemical energy conversion. 

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