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Title: Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system

Abstract

A method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system for hydrogen generation which comprises forming an aqueous solution comprising an electron donor, methylviologen, and certain metalloporphyrins and metallochlorins, and irradiating said aqueous solution with light in the presence of a catalyst. In the photosynthesis process, solar energy is collected and stored in the form of a gas hydrogen. Ligands attached above and below the metalloporphyrin and metallochlorin plane are capable of sterically blocking photochemically inactive electrostatically bound .pi.--.pi. complexes which can develop.

Inventors:
 [1]
  1. Albuquerque, NM
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
865756
Patent Number(s):
US 4568435
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; improving; product; yields; anionic; metalloporphyrin-based; artificial; photosynthesis; hydrogen; generation; comprises; forming; aqueous; solution; comprising; electron; donor; methylviologen; metalloporphyrins; metallochlorins; irradiating; light; presence; catalyst; process; solar; energy; collected; stored; form; gas; ligands; attached; below; metalloporphyrin; metallochlorin; plane; capable; sterically; blocking; photochemically; inactive; electrostatically; bound; complexes; product yields; synthesis process; comprises forming; aqueous solution; solar energy; solution comprising; electron donor; artificial photosynthesis; hydrogen generation; metalloporphyrin-based artificial; improving product; anionic metal; anionic metalloporphyrin-based; /204/

Citation Formats

Shelnutt, John A. Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system. United States: N. p., 1986. Web.
Shelnutt, John A. Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system. United States.
Shelnutt, John A. 1986. "Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system". United States. https://www.osti.gov/servlets/purl/865756.
@article{osti_865756,
title = {Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system},
author = {Shelnutt, John A},
abstractNote = {A method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system for hydrogen generation which comprises forming an aqueous solution comprising an electron donor, methylviologen, and certain metalloporphyrins and metallochlorins, and irradiating said aqueous solution with light in the presence of a catalyst. In the photosynthesis process, solar energy is collected and stored in the form of a gas hydrogen. Ligands attached above and below the metalloporphyrin and metallochlorin plane are capable of sterically blocking photochemically inactive electrostatically bound .pi.--.pi. complexes which can develop.},
doi = {},
url = {https://www.osti.gov/biblio/865756}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}