Ultrasound assisted formation of Al-Ni electrocatalyst for hydrogen evolution

Pavel V. Cherepanov; Muthupandian Ashokkumar; Daria V. Andreeva

doi:10.1016/j.ultsonch.2014.10.012

Ultrasound assisted formation of Al-Ni electrocatalyst for hydrogen evolution

Pavel V. Cherepanov, Muthupandian Ashokkumar, Daria V. Andreeva

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

35 Citations (Scopus)

Abstract

High intensity ultrasound treatment has been used to generate electrocatalytically active (toward hydrogen evolution) surface on AlNi (50 wt.% Ni) alloy particles. Acoustic cavitation is responsible for the initiation of redox processes on the catalyst surface leading to changes in its composition. Cavitation impact on the surface composition of the metal alloy could be controlled by manipulating the sonication medium during ultrasound treatment. Evaluation of electrocatalytic performance, as well as surface composition studies of ultrasonically generated catalysts showed the advantageous use of sonication medium with reducing ability and high vapor pressure for the generation of highly efficient interface on Al-Ni alloy particles for water splitting reaction.

Original language	English
Pages (from-to)	142-147
Number of pages	6
Journal	Ultrasonics Sonochemistry
Volume	23
DOIs	https://doi.org/10.1016/j.ultsonch.2014.10.012
Publication status	Published - Mar 2015
Externally published	Yes

Keywords

AlNi
Electrocatalyst
Hydrogen evolution reaction
Intermetallics
Metal alloys
Sonochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ultsonch.2014.10.012

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title = "Ultrasound assisted formation of Al-Ni electrocatalyst for hydrogen evolution",

abstract = "High intensity ultrasound treatment has been used to generate electrocatalytically active (toward hydrogen evolution) surface on AlNi (50 wt.% Ni) alloy particles. Acoustic cavitation is responsible for the initiation of redox processes on the catalyst surface leading to changes in its composition. Cavitation impact on the surface composition of the metal alloy could be controlled by manipulating the sonication medium during ultrasound treatment. Evaluation of electrocatalytic performance, as well as surface composition studies of ultrasonically generated catalysts showed the advantageous use of sonication medium with reducing ability and high vapor pressure for the generation of highly efficient interface on Al-Ni alloy particles for water splitting reaction.",

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AU - Cherepanov, Pavel V.

AU - Ashokkumar, Muthupandian

AU - Andreeva, Daria V.

PY - 2015/3

Y1 - 2015/3

N2 - High intensity ultrasound treatment has been used to generate electrocatalytically active (toward hydrogen evolution) surface on AlNi (50 wt.% Ni) alloy particles. Acoustic cavitation is responsible for the initiation of redox processes on the catalyst surface leading to changes in its composition. Cavitation impact on the surface composition of the metal alloy could be controlled by manipulating the sonication medium during ultrasound treatment. Evaluation of electrocatalytic performance, as well as surface composition studies of ultrasonically generated catalysts showed the advantageous use of sonication medium with reducing ability and high vapor pressure for the generation of highly efficient interface on Al-Ni alloy particles for water splitting reaction.

AB - High intensity ultrasound treatment has been used to generate electrocatalytically active (toward hydrogen evolution) surface on AlNi (50 wt.% Ni) alloy particles. Acoustic cavitation is responsible for the initiation of redox processes on the catalyst surface leading to changes in its composition. Cavitation impact on the surface composition of the metal alloy could be controlled by manipulating the sonication medium during ultrasound treatment. Evaluation of electrocatalytic performance, as well as surface composition studies of ultrasonically generated catalysts showed the advantageous use of sonication medium with reducing ability and high vapor pressure for the generation of highly efficient interface on Al-Ni alloy particles for water splitting reaction.

KW - AlNi

KW - Electrocatalyst

KW - Hydrogen evolution reaction

KW - Intermetallics

KW - Metal alloys

KW - Sonochemistry

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DO - 10.1016/j.ultsonch.2014.10.012

M3 - Article

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SN - 1350-4177

VL - 23

SP - 142

EP - 147

JO - Ultrasonics Sonochemistry

JF - Ultrasonics Sonochemistry

ER -

Ultrasound assisted formation of Al-Ni electrocatalyst for hydrogen evolution

Abstract

Keywords

UN SDGs

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