Supramolecular complexes as photocatalysts for reduction of...

Details Supramolecular complexes as photocatalysts for reduction of... Supramolecular complexes as photocatalysts for reduction of...

B - Operations, Transporting

01

J

B01J 31/22 (2006.01) C01B 3/06 (2006.01) C01B 3/08 (2006.01)

Patent

CA 2681521

Supramolecular complexes, methods and systems for photocatalysis of the reduction of substrates are described. The supramolecular complexes of the invention have a light absorbing metal center, an electron collector ligand and a catalytically active metal. When the supramolecular complexes are exposed to radiant energy, the light absorbing metal center creates a charge that is transferred to the electron collector ligand to form a charge transfer state. The charge is then transferred through the catalytically active metal to a substrate, cause the reduction of the substrate, e.g. the reduction of water to molecular hydrogen.

Cette invention se rapporte à des complexes supramoléculaires, à des procédés et des systèmes pour photocatalyser la réduction de substrats. Les complexes supramoléculaires de l'invention ont un centre à métal photo-absorbant, un ligand collecteur d'électrons et un métal catalytiquement actif. Lorsque les complexes supramoléculaires sont exposés à de l'énergie radiante, le centre à métal photo-absorbant crée une charge qui est transférée vers le ligand collecteur d'électrons et forme un état de transfert de charge. La charge est alors transférée par le métal catalytiquement actif vers un substrat, provoque la réduction du substrat, par exemple la réduction de l'eau en hydrogène moléculaire.

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