Aerosol-derived Ni 1-xZn x electrocatalysts for direct hydrazine fuel cells

Ulises Martinez; Koichiro Asazawa; Barr Halevi; Akinbayowa Falase; Boris Kiefer; Alexey Serov; Monica Padilla; Tim Olson; Abhaya Datye; Hirohisa Tanaka; Plamen Atanassov

doi:10.1039/c2cp40546f

Aerosol-derived Ni _1-xZn _x electrocatalysts for direct hydrazine fuel cells

Ulises Martinez, Koichiro Asazawa, Barr Halevi, Akinbayowa Falase, Boris Kiefer, Alexey Serov, Monica Padilla, Tim Olson, Abhaya Datye, Hirohisa Tanaka, Plamen Atanassov

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

This article reports the synthesis and performance of unsupported Ni _1-xZn _x electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni _0.87Zn _0.13 and β ₁-Ni _0.50Zn _0.50 electrocatalysts with an onset potential of -0.15 V (vs. RHE) and a mass activity of 4000-3800 A g _cat ^-1 at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni _1-xZn _x catalysts for direct hydrazine anionic fuel cells.

Original language	English
Pages (from-to)	5512-5517
Number of pages	6
Journal	Physical Chemistry Chemical Physics
Volume	14
Issue number	16
DOIs	https://doi.org/10.1039/c2cp40546f
State	Published - Apr 28 2012
Externally published	Yes

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title = "Aerosol-derived Ni 1-xZn x electrocatalysts for direct hydrazine fuel cells",

abstract = "This article reports the synthesis and performance of unsupported Ni 1-xZn x electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni 0.87Zn 0.13 and β 1-Ni 0.50Zn 0.50 electrocatalysts with an onset potential of -0.15 V (vs. RHE) and a mass activity of 4000-3800 A g cat -1 at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni 1-xZn x catalysts for direct hydrazine anionic fuel cells.",

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T1 - Aerosol-derived Ni 1-xZn x electrocatalysts for direct hydrazine fuel cells

AU - Martinez, Ulises

AU - Asazawa, Koichiro

AU - Halevi, Barr

AU - Falase, Akinbayowa

AU - Kiefer, Boris

AU - Serov, Alexey

AU - Padilla, Monica

AU - Olson, Tim

AU - Datye, Abhaya

AU - Tanaka, Hirohisa

AU - Atanassov, Plamen

PY - 2012/4/28

Y1 - 2012/4/28

N2 - This article reports the synthesis and performance of unsupported Ni 1-xZn x electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni 0.87Zn 0.13 and β 1-Ni 0.50Zn 0.50 electrocatalysts with an onset potential of -0.15 V (vs. RHE) and a mass activity of 4000-3800 A g cat -1 at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni 1-xZn x catalysts for direct hydrazine anionic fuel cells.

AB - This article reports the synthesis and performance of unsupported Ni 1-xZn x electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni 0.87Zn 0.13 and β 1-Ni 0.50Zn 0.50 electrocatalysts with an onset potential of -0.15 V (vs. RHE) and a mass activity of 4000-3800 A g cat -1 at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni 1-xZn x catalysts for direct hydrazine anionic fuel cells.

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JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 16

ER -

Aerosol-derived Ni _1-xZn _x electrocatalysts for direct hydrazine fuel cells

Abstract

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