Successive ionic layer deposition of Co-doped Cu(OH)2 nanorods as electrode material for electrocatalytic reforming of ethanol
https://doi.org/10.17586/2220-8054-2019-10-5-573-578
Abstract
In this work, a facile and cost-effective layer by layer method was proposed to synthesize novel high stable and effective electrode material based on the Co-doped Cu(OH)2 nanocrystals. The crystals have orthorhombic structure and a rod-like morphology with a 23_2 nm in width and 43_4 nm in length. The composition of the nanocrystals corresponds to the 1 % Co-doped Cu(OH)2 by EDX with no noticeable impurities as it was found by FTIR spectroscopy. It was shown that nickel electrode modified with nanorods is characterized by an overvoltage value of -347 mV at 10 mA/cm2, which is 250 mV lower than that of an initial pure nickel electrode. The value of Tafel slope that reaches 138 mV/dec, high stability of the Co-doped Cu(OH)2 nanorods in chronopotentiometric (10 hours) and cyclic volamperometric (500 cycles) tests allows us to consider them as a prospective basis of electrode materials for the hydrogen evolution from renewable water-alcohol sources.
About the Authors
I. A. Kodintsev
Ioffe Institute
Russian Federation
Russian Federation
I. A. Kodintsev
194021 Saint Petersburg
K. D. Martinson
Ioffe Institute
Russian Federation
Russian Federation
K.D. Martinson
194021 Saint Petersburg
A. A. Lobinsky
Saint Petersburg State University
Russian Federation
Russian Federation
A. A. Lobinsky
Peterhof, 198504 Saint Petersburg
V. I. Popkov
Ioffe Institute
Russian Federation
Russian Federation
V. I. Popkov
194021 Saint Petersburg
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Review
For citations:
Kodintsev I.A., Martinson K.D., Lobinsky A.A., Popkov V.I. Successive ionic layer deposition of Co-doped Cu(OH)2 nanorods as electrode material for electrocatalytic reforming of ethanol. Nanosystems: Physics, Chemistry, Mathematics. 2019;10(5):573-578. https://doi.org/10.17586/2220-8054-2019-10-5-573-578
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