Kinetic study of hydrogen evolution reaction on Ni30 Mo 70, Co30Mo70, Co30Ni70 and Co10Ni20Mo70 alloy electrodes

M. A. Domínguez-Crespo; M. Plata-Torres; A. M. Torres-Huerta; E. M. Arce-Estrada; J. M. Hallen-López

doi:10.1016/j.matchar.2005.03.003

Kinetic study of hydrogen evolution reaction on Ni₃₀ Mo ₇₀, Co₃₀Mo₇₀, Co₃₀Ni₇₀ and Co₁₀Ni₂₀Mo₇₀ alloy electrodes

M. A. Domínguez-Crespo, M. Plata-Torres, A. M. Torres-Huerta, E. M. Arce-Estrada, J. M. Hallen-López

Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada (CICATA), Unidad Altamira
Escuela Superior de Ingeniería Química e Industrias Extractivas (ESIQIE)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

51 Citas (Scopus)

Resumen

The hydrogen evolution reaction on nanocrystalline Ni₃₀Mo ₇₀, Co₃₀Mo₇₀, Co₃₀Ni₇₀, and Co₁₀Ni₂₀Mo₇₀, metallic powders prepared by mechanical alloying was investigated with linear polarization and ac impedance methods, in 30 wt.% KOH aqueous solution at room temperature. The formation process and structural properties of these nanocrystalline materials were characterized by X-ray diffraction and transmission electron microscopy. Alloyed powders showed the presence of two phases: an fcc solid solution and intermetallic compounds of Ni, Co and Mo. Based on polarization and ac impedance measurements, an improved electrocatalytic activity for hydrogen evolution reaction was observed in mechanically alloyed Co₃₀Ni₇₀ powders, which is slightly higher than milled metallic Ni powders.

Idioma original	Inglés
Páginas (desde-hasta)	83-91
Número de páginas	9
Publicación	Materials Characterization
Volumen	55
N.º	1
DOI	https://doi.org/10.1016/j.matchar.2005.03.003
Estado	Publicada - jul. 2005

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@article{0c215fbe21e14e658eec72f0fa368d23,

title = "Kinetic study of hydrogen evolution reaction on Ni30 Mo 70, Co30Mo70, Co30Ni70 and Co10Ni20Mo70 alloy electrodes",

abstract = "The hydrogen evolution reaction on nanocrystalline Ni30Mo 70, Co30Mo70, Co30Ni70, and Co10Ni20Mo70, metallic powders prepared by mechanical alloying was investigated with linear polarization and ac impedance methods, in 30 wt.% KOH aqueous solution at room temperature. The formation process and structural properties of these nanocrystalline materials were characterized by X-ray diffraction and transmission electron microscopy. Alloyed powders showed the presence of two phases: an fcc solid solution and intermetallic compounds of Ni, Co and Mo. Based on polarization and ac impedance measurements, an improved electrocatalytic activity for hydrogen evolution reaction was observed in mechanically alloyed Co30Ni70 powders, which is slightly higher than milled metallic Ni powders.",

keywords = "Ac impedance, Electrocatalysts, Hydrogen evolution reaction, Mechanical alloying",

author = "Dom{\'i}nguez-Crespo, {M. A.} and M. Plata-Torres and Torres-Huerta, {A. M.} and Arce-Estrada, {E. M.} and Hallen-L{\'o}pez, {J. M.}",

note = "Funding Information: The authors wish to thank CGPI-IPN, CONACYT, SNI and Instituto Mexicano del Petroleo (IMP) for financial support.",

year = "2005",

month = jul,

doi = "10.1016/j.matchar.2005.03.003",

language = "Ingl{\'e}s",

volume = "55",

pages = "83--91",

journal = "Materials Characterization",

issn = "1044-5803",

number = "1",

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TY - JOUR

T1 - Kinetic study of hydrogen evolution reaction on Ni30 Mo 70, Co30Mo70, Co30Ni70 and Co10Ni20Mo70 alloy electrodes

AU - Domínguez-Crespo, M. A.

AU - Plata-Torres, M.

AU - Torres-Huerta, A. M.

AU - Arce-Estrada, E. M.

AU - Hallen-López, J. M.

N1 - Funding Information: The authors wish to thank CGPI-IPN, CONACYT, SNI and Instituto Mexicano del Petroleo (IMP) for financial support.

PY - 2005/7

Y1 - 2005/7

N2 - The hydrogen evolution reaction on nanocrystalline Ni30Mo 70, Co30Mo70, Co30Ni70, and Co10Ni20Mo70, metallic powders prepared by mechanical alloying was investigated with linear polarization and ac impedance methods, in 30 wt.% KOH aqueous solution at room temperature. The formation process and structural properties of these nanocrystalline materials were characterized by X-ray diffraction and transmission electron microscopy. Alloyed powders showed the presence of two phases: an fcc solid solution and intermetallic compounds of Ni, Co and Mo. Based on polarization and ac impedance measurements, an improved electrocatalytic activity for hydrogen evolution reaction was observed in mechanically alloyed Co30Ni70 powders, which is slightly higher than milled metallic Ni powders.

AB - The hydrogen evolution reaction on nanocrystalline Ni30Mo 70, Co30Mo70, Co30Ni70, and Co10Ni20Mo70, metallic powders prepared by mechanical alloying was investigated with linear polarization and ac impedance methods, in 30 wt.% KOH aqueous solution at room temperature. The formation process and structural properties of these nanocrystalline materials were characterized by X-ray diffraction and transmission electron microscopy. Alloyed powders showed the presence of two phases: an fcc solid solution and intermetallic compounds of Ni, Co and Mo. Based on polarization and ac impedance measurements, an improved electrocatalytic activity for hydrogen evolution reaction was observed in mechanically alloyed Co30Ni70 powders, which is slightly higher than milled metallic Ni powders.

KW - Ac impedance

KW - Electrocatalysts

KW - Hydrogen evolution reaction

KW - Mechanical alloying

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U2 - 10.1016/j.matchar.2005.03.003

DO - 10.1016/j.matchar.2005.03.003

M3 - Artículo

SN - 1044-5803

VL - 55

SP - 83

EP - 91

JO - Materials Characterization

JF - Materials Characterization

IS - 1

ER -