Influence of Humic Substances on the Removal of Pentachlorophenol by a Biomimetic Catalytic System with a Water-Soluble Iron(III)−Porphyrin Complex

2003 ◽  
Vol 37 (5) ◽  
pp. 1031-1036 ◽  
Author(s):  
Masami Fukushima ◽  
Akira Sawada ◽  
Mikio Kawasaki ◽  
Hiroyasu Ichikawa ◽  
Kengo Morimoto ◽  
...  
Keyword(s):  
Humic Substances ◽  
Catalytic System ◽  
Water Soluble ◽  
Soluble Iron ◽  
Porphyrin Complex

scholarly journals Iridium Complex Catalyzed Hydrogen Production from Glucose and Various Monosaccharides

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 891
Author(s):  
Ken-ichi Fujita ◽  
Takayoshi Inoue ◽  
Toshiki Tanaka ◽  
Jaeyoung Jeong ◽  
Shohichi Furukawa ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Catalytic System ◽  
Catalytic Reaction ◽  
Hydrogen Gas ◽  
Water Soluble ◽  
Starting Material ◽  
Iridium Complex ◽  
Production Of Hydrogen ◽  
Bipyridine Ligand

A new catalytic system has been developed for hydrogen production from various monosaccharides, mainly glucose, as a starting material under reflux conditions in water in the presence of a water-soluble dicationic iridium complex bearing a functional bipyridine ligand. For example, the reaction of D-glucose in water under reflux for 20 h in the presence of [Cp*Ir(6,6′-dihydroxy-2,2′-bipyridine)(H2O)][OTf]2 (1.0 mol %) (Cp*: pentamethylcyclopentadienyl, OTf: trifluoromethanesulfonate) resulted in the production of hydrogen gas in 95% yield. In the present catalytic reaction, it was experimentally suggested that dehydrogenation of the alcoholic moiety at 1-position of glucose proceeded.

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