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公开(公告)号：US11846032B2
公开(公告)日：2023-12-19
申请号：US16771597
申请日：2018-12-11
Inventor： Dennis Lichtenberger , Richard S. Glass , Dong-Chul Pyun , William Brezinski , Kayla Clary , Metin Karayilan
Abstract: Catalyst systems employing inexpensive and readily-available protic co-catalysts to increase a proton reduction rate in a hydrogen evolution reaction (HER) are described herein. The protic co-catalysts function to increase the rate without being consumed in the process of water splitting to hydrogen and oxygen. They may simultaneously serve to stabilize the pH of the water and be the electrolyte to carry the current for the electrolytic splitting of water. The protic co-catalysts also decrease the overpotential energy requirement for the process of water splitting. These protic co-catalysts can be used with both heterogeneous and homogenous catalysts, as well as assist photocatalysis and other processes for the reduction of protons.
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公开(公告)号：US11649548B2
公开(公告)日：2023-05-16
申请号：US16466571
申请日：2017-12-11
Inventor： Dong-Chul Pyun , Richard S. Glass , Dennis Lichtenberger , William Brezinski , Kayla Clary , Metin Karayilan
IPC: C25B1/02 , C25B1/55 , C25B11/048 , B01J31/16 , H01M4/90
CPC classification number: C25B1/02 , C25B1/55 , C25B11/048 , B01J31/165 , B01J2531/842 , H01M4/9008
Abstract: Metallopolymers composed of polymers and catalytically active diiron-disulfide ([2Fe-2S]) complexes are described herein. [FeFe]-hydrogenase mimics have been synthesized and used to initiate polymerization of various monomers to generate metallopolymers containing active [2Fe-2S] sites which serve as catalysts for a hydrogen evolution reaction (HER). Vinylic monomers with polar groups provided water solubility relevant for large scale hydrogen production, leveraging the supramolecular architecture to improve catalysis. Metallopolymeric electrocatalysts displayed high turnover frequency and low overpotential in aqueous media as well as aerobic stability. Metallopolymeric photocatalysts incorporated P3HT ligands to serve as a photosensitizer to promote photoinduced electron transfer to the active complex.
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公开(公告)号：US20200299848A1
公开(公告)日：2020-09-24
申请号：US16771597
申请日：2018-12-11
Inventor： Dennis Lichtenberger , Richard S. Glass , Dong-Chul Pyun , William Brezinski , Kayla Clary , Metin Karayilan
Abstract: Catalyst systems employing inexpensive and readily-available protic co-catalysts to increase a proton reduction rate in a hydrogen evolution reaction (HER) are described herein. The protic co-catalysts function to increase the rate without being consumed in the process of water splitting to hydrogen and oxygen. They may simultaneously serve to stabilize the pH of the water and be the electrolyte to carry the current for the electrolytic splitting of water. The protic co-catalysts also decrease the overpotential energy requirement for the process of water splitting. These protic co-catalysts can be used with both heterogeneous and homogenous catalysts, as well as assist photocatalysis and other processes for the reduction of protons.
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