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Application of lignin derivatives to photoelectric transducer and photoelectrochemical cell

Foreign code F110005201
File No. A152-08WO
Posted date Aug 25, 2011
Country United States of America
Application number 19921105
Gazette No. 20060035392
Gazette No. 07282636
Date of filing Aug 9, 2005
Gazette Date Feb 16, 2006
Gazette Date Oct 16, 2007
International application number PCT/JP2004/001336
Date of international filing Feb 9, 2004
Priority data
  • P2003-032891 (Feb 10, 2003) JP
Title Application of lignin derivatives to photoelectric transducer and photoelectrochemical cell
Abstract The invention regards application of lignin derivatives to a photoelectric transducer. The photoelectric transducer of the invention includes a semiconductor film as a thin film electrode, that is photosensitized by one or multiple lignin derivatives selected from the group consisting of: (a) a lignophenol derivative or a phenol derivative of lignin that is prepared by solvating a lignin-containing material with a phenol compound and adding an acid to the solvate; (b) a secondary derivative that is prepared by one reaction of the lignophenol derivative (a) selected among acylation, carboxylation, amidation, introduction of a crosslinking group, and alkali treatment; (c) a higher-order derivative that is prepared by at least two reactions of the lignophenol derivative (a) selected among acylation, carboxylation, amidation, introduction of the crosslinking group, and alkali treatment; (d) a crosslinked secondary derivative that is prepared by crosslinking the secondary derivative (b) obtained by the introduction of the crosslinking group; and (e) a crosslinked higher-order derivative that is prepared by crosslinking the higher-order derivative (c) obtained by the introduction of the crosslinking group.
  • Inventor, and Inventor/Applicant
  • Funaoka, Masamitsu; Mie [JP]
  • Aoyagi, Mitsuru; Mie [JP]
  • Japan Science and Technology Agency, Kawaguchi-shi [JP]
IPC(International Patent Classification)
Reference ( R and D project ) CREST Research and Development of System Technologies for Resource Recycling and Minimum Energy Requirement AREA
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