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PHOTOELECTROCHEMICAL CELL SENSITIZED BY LIGNIN DERIVATIVES

Foreign code F110003497
File No. A152-08WO
Posted date Jun 28, 2011
Country EPO
Application number 04709347
Gazette No. 1603185
Gazette No. 1603185
Date of filing Feb 9, 2004
Gazette Date Dec 7, 2005
Gazette Date Sep 11, 2013
International application number WO2004JP01336
Date of international filing Feb 9, 2004
Priority data
  • P2003-032891 (Feb 10, 2003) JP
Title PHOTOELECTROCHEMICAL CELL SENSITIZED BY LIGNIN DERIVATIVES
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. <IMAGE>

  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • FUNAOKA, MASAMITSU
  • AOYAGI, MITSURU
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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