Solar energy storage materials

Details Solar energy storage materials Solar energy storage materials

C - Chemistry, Metallurgy

09

K

31/49

C09K 5/00 (2006.01) C09K 5/16 (2006.01)

Patent

CA 1200372

ABSTRACT This invention relates to a solar energy storage material comprising N,N'-bis(phenylacetyl)indigo dissolved in a polar solvent. Of the indigo derivatives capable of storing the solar energy by the photoisomeriz- ation from trans-isomer to cis-isomer of the molecule, all of the compounds obtained so far had an energy storage capacity of only 30 cal or less per 1 g of the compound and also a high thermal isomerization rate from cis form to trans form in solution. Thus, they cannot be called a solar energy storage material of practical value. In the case of the present invention, on the other hand, when N,N'-bis(phenylacetyl)indigo is dis- solved in a polar solvent such as acetonitrile, it is possible to store about 60 cal of energy per 1 g of N,N'-bis(phenylacetyl)indigo, and the half-life period of isomerization from cis to trans from in acetonitrile at 17°C is 1,264 minutes, which is also a satisfactory value for practical application.

427203

Affiliated with

Also associated with

Rating

Solar energy storage materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solar energy storage materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar energy storage materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1258296