Nickel-Based Water-Soluble Metallopolymer for the Electrochemical Hydrogen Evolution Reaction in Neutral-pH Water

2021 ◽  
Vol 3 (10) ◽  
pp. 5051-5060
Author(s):  
Thongpon Meethong ◽  
Panittha Damsongsang ◽  
Kamonwad Ngamchuea ◽  
Kittipong Chainok ◽  
Somboon Sahasithiwat ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Water Soluble ◽  
Neutral Ph

scholarly journals A Supramolecular Porous Organic Cage Platform Promotes Electrochemical Hydrogen Evolution from Water Catalyzed by Cobalt Porphyrins

2021 ◽  
Author(s):  
Peter T. Smith ◽  
Bahiru Punja Benke ◽  
Lun An ◽  
Younghoon Kim ◽  
Kimoon Kim ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Supramolecular Structure ◽  
Fold Increase ◽  
Faradaic Efficiency ◽  
Tafel Slope ◽  
Neutral Ph ◽  
Catalyst Film ◽  
Electrochemically Active ◽  
Cobalt Porphyrins

We report a supramolecular porous organic cage platform composed of cobalt porphyrins for catalyzing the electrochemical hydrogen evolution reaction (HER) from water at neutral pH. Owing to its permanent porosity, the supramolecular structure yields a catalyst film with a 5-fold increase in the number of electrochemically active cobalt atoms and an improvement in Tafel slope from 170 mV/decade to 119 mV/decade compared to a planar cobalt porphyrin analog, reaching activities over 19,000 turnovers for HER over a 24-hour period with 100% Faradaic efficiency.

scholarly journals A Supramolecular Porous Organic Cage Platform Promotes Electrochemical Hydrogen Evolution from Water Catalyzed by Cobalt Porphyrins

2021 ◽  
Author(s):  
Peter T. Smith ◽  
Bahiru Punja Benke ◽  
Lun An ◽  
Younghoon Kim ◽  
Kimoon Kim ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Supramolecular Structure ◽  
Fold Increase ◽  
Faradaic Efficiency ◽  
Tafel Slope ◽  
Neutral Ph ◽  
Catalyst Film ◽  
Electrochemically Active ◽  
Cobalt Porphyrins

We report a supramolecular porous organic cage platform composed of cobalt porphyrins for catalyzing the electrochemical hydrogen evolution reaction (HER) from water at neutral pH. Owing to its permanent porosity, the supramolecular structure yields a catalyst film with a 5-fold increase in the number of electrochemically active cobalt atoms and an improvement in Tafel slope from 170 mV/decade to 119 mV/decade compared to a planar cobalt porphyrin analog, reaching activities over 19,000 turnovers for HER over a 24-hour period with 100% Faradaic efficiency.

Water‐Soluble Polymers with Appending Porphyrins as Bioinspired Catalysts for the Hydrogen Evolution Reaction

2020 ◽  
Vol 132 (37) ◽  
pp. 15978-15982
Author(s):  
Lisi Xie ◽  
Jia Tian ◽  
Yingjie Ouyang ◽  
Xinai Guo ◽  
Weian Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers
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