We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Complexes of Sodium Pectate with Nickel for Hydrogen Oxidation and Oxygen Reduction in Proton-Exchange Membrane Fuel Cells.
- Authors
Nizameev, Irek R.; Kadirov, Danis M.; Nizameeva, Guliya R.; Sabirova, Aigul' F.; Kholin, Kirill V.; Morozov, Mikhail V.; Mironova, Lyubov' G.; Zairov, Rustem R.; Minzanova, Salima T.; Sinyashin, Oleg G.; Kadirov, Marsil K.
- Abstract
A number of nickel complexes of sodium pectate with varied Ni2+ content have been synthesized and characterized. The presence of the proton conductivity, the possibility of the formation of a dense spatial network of transition metals in these coordination biopolymers, and the immobilization of transition ions in the catalytic sites of this class of compounds make them promising for proton-exchange membrane fuel cells. It has been established that the catalytic system composed of a coordination biopolymer with 20% substitution of sodium ions for divalent nickel ions, Ni (20%)-NaPG, is the leading catalyst in the series of 5, 15, 20, 25, 35% substituted pectates. Among the possible reasons for the improvement in performance the larger specific surface area of this sample compared to the other studied materials and the narrowest distribution of the vertical size of metal arrays were registered. The highest activity during CV and proximity to four-electron transfer during the catalytic cycle have also been observed for this compound.
- Subjects
HYDROGEN oxidation; FUEL cells; PROTON exchange membrane fuel cells; TRANSITION metals; NICKEL; COORDINATION polymers; OXYGEN reduction
- Publication
International Journal of Molecular Sciences, 2022, Vol 23, Issue 22, p14247
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms232214247