EPR of catalytic complexes of Mn (II) with sodium pectate
https://doi.org/10.26907/mrsej-23302
Abstract
Coordination biopolymers, namely, nickel complexes of sodium pectate, have been actively studied in recent years as promising representatives of non-platinum catalysts for proton exchange membrane fuel cells. The structure of coordination polymers consisting of natural precursors is complex and not entirely regular. It presents significant difficulties in determining the internal structure of coordination polymers. Identifiable electron paramagnetic resonance (EPR) signals of various Mn2+ units in sodium pectate manganese complexes have provided important structural information in systems similar in composition to nickel coordination biopolymers. In addition, the manganese complexes with the natural pectin polymers themselves are of interest as non-platinum PEMFC catalysts
Keywords
proton exchange membrane fuel cell,
non-platinum catalysts,
coordination biopolymers,
electron paramagnetic resonance,
octahedral environment,
“egg-box” structures
Supporting agencies: The reported study was funded by RSF, project number 22-29-00895
About the Authors
M. K. Kadirov
A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences; Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420088
Kazan 420015
A. F. Sabirova
A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Kazan 420088
D. M. Kadirov
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420015
R. N. Mansurov
A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences; Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420088
Kazan 420015
S. T. Minzanova
A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences; Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420088
Kazan 420015
K. V. Kholin
A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences; Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420088
Kazan 420015
E. I. Galeeva
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan 420015
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Review
For citations:
Kadirov M.K., Sabirova A.F., Kadirov D.M., Mansurov R.N., Minzanova S.T., Kholin K.V., Galeeva E.I. EPR of catalytic complexes of Mn (II) with sodium pectate. Magnetic Resonance in Solids. 2023;25(3):23302 (8 pp.). https://doi.org/10.26907/mrsej-23302
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