Storage of light

We should remember that it took Mother Nature billions of years to invent photosynthesis and to make it as perfect as it is today, and it would be naive to expect a simple and rapid creation of its artificial functional analog. Nevertheless, from what we know today about PET in the membrane systems, we may expect that an artificial apparatus providing efficient charge separation via tram-membrane PET is likely to be developed in a rather universal way and may be expected to accomplish not only water reduction and oxidation but also various other redox reactions which provide the storage of light energy. 

T. Hayashi and K. Maeda, Storage of light energy by a solution of photochro-matic-l,l biorg(2,4,5-triphenylimidazyl) at low temperatures. Bull. Chem. Soc. Jpn. 1963, 36, 1052. 

Gerischer H. (1977), Semiconductor electrodes for conversion and storage of light energy , J. Electrochem. Soc. 124, C129-C129. 

Phillips DF, Fleisehhauer A, Mair A and et al. Storage of light in atomic vapor. Physical Review Letters 2001 Jan 29 86(5) 783-786. 

There is the crude distillation column (node No. 101) with further redistillation of naphtha 102. The tank 103 serves as the storage of light fuel oil LFO which is used also as the fuel in the furnace (included here in the distillation system 101) heating the crude oil. The crude oil is imported from the cmde terminal 01, all fractions are shipped to the tank farm 03. There is also further processing of the refinery gas 02. Note that codes of all external nodes not belonging to the balanced system start with zero. 

The two factors mentioned above lead to the start of an active research area, whose long range aim is the photochemical storage of light energy, related to the possibility of converting solar energy to a storable fuel. 

The prevention of the back reaction (usually diffusional controlled) in light-activated redox processes would allow such systems to be considered for the quantum storage of light energy. One approach has involved the sensitized photoreduction of NO3 to NO3" in micellar solution with NO3" being rapidly converted to NO2 and OH thus preventing the back... 

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