A nickel-based pectin coordination polymer as an oxygen reduction reaction catalyst for proton-exchange membrane fuel cells†
M. K.
Kadirov, 
*ab
I. R.
Nizameev,
ac
A. R.
Khamatgalimov,
a
V. A.
Semyonov,
b
Yu. H.
Budnikova
a
and
*ab
I. R.
Nizameev,
ac
A. R.
Khamatgalimov,
a
V. A.
Semyonov,
b
Yu. H.
Budnikova
a
and
Abstract
Membrane-electrode assemblies (MEA) with a cathode catalyst made of a nickel sodium pectate complex PG-NaNi with a 25% substitution of sodium for nickel, and with a commercial anode catalyst made of platinum black have been successfully created. Tests in a H2/O2 proton exchange membrane fuel cell (PEMFC) yielded the values of the maximum current density of 59 mA cm−2 and the maximum power density of 5.9 mW cm−2. These results permit the development of environmentally friendly and stable cathode catalysts for PEMFCs made of a readily available biological raw material, pectin.
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