Quasifree Mg-H thin films

A. Baldi; V. Palmisano; M. Gonzalez-Silveira; Y. Pivak; M. Slaman; H. Schreuders; B. Dam; R. Griessen

doi:10.1063/1.3210791

Quasifree Mg-H thin films

A. Baldi, V. Palmisano, M. Gonzalez-Silveira, Y. Pivak, M. Slaman, H. Schreuders, B. Dam, R. Griessen

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Abstract

The thermodynamics of hydrogen absorption in Pd-capped Mg films are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. By means of optical measurements, we show that the surface energy contribution to the destabilization of MgH(2) is negligible. The inserted Ti layer prevents Mg-Pd alloy formation at the Mg/Pd interface, leading to quasifree Mg films and enhancing the kinetics of hydrogen desorption. Our observations are important for the development of thin film devices.

Original language	English
Article number	071903
Journal	Applied Physics Letters
Volume	95
Issue number	7
DOIs	https://doi.org/10.1063/1.3210791
Publication status	Published - 17 Aug 2009

Keywords

desorption
hydrogen
magnesium
magnesium compounds
metallic thin films
palladium
surface energy
titanium

UN SDGs

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

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10.1063/1.3210791

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title = "Quasifree Mg-H thin films",

abstract = "The thermodynamics of hydrogen absorption in Pd-capped Mg films are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. By means of optical measurements, we show that the surface energy contribution to the destabilization of MgH(2) is negligible. The inserted Ti layer prevents Mg-Pd alloy formation at the Mg/Pd interface, leading to quasifree Mg films and enhancing the kinetics of hydrogen desorption. Our observations are important for the development of thin film devices.",

keywords = "desorption, hydrogen, magnesium, magnesium compounds, metallic thin films, palladium, surface energy, titanium",

author = "A. Baldi and V. Palmisano and M. Gonzalez-Silveira and Y. Pivak and M. Slaman and H. Schreuders and B. Dam and R. Griessen",

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T1 - Quasifree Mg-H thin films

AU - Baldi, A.

AU - Palmisano, V.

AU - Gonzalez-Silveira, M.

AU - Pivak, Y.

AU - Slaman, M.

AU - Schreuders, H.

AU - Dam, B.

AU - Griessen, R.

PY - 2009/8/17

Y1 - 2009/8/17

N2 - The thermodynamics of hydrogen absorption in Pd-capped Mg films are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. By means of optical measurements, we show that the surface energy contribution to the destabilization of MgH(2) is negligible. The inserted Ti layer prevents Mg-Pd alloy formation at the Mg/Pd interface, leading to quasifree Mg films and enhancing the kinetics of hydrogen desorption. Our observations are important for the development of thin film devices.

AB - The thermodynamics of hydrogen absorption in Pd-capped Mg films are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. By means of optical measurements, we show that the surface energy contribution to the destabilization of MgH(2) is negligible. The inserted Ti layer prevents Mg-Pd alloy formation at the Mg/Pd interface, leading to quasifree Mg films and enhancing the kinetics of hydrogen desorption. Our observations are important for the development of thin film devices.

KW - desorption

KW - hydrogen

KW - magnesium

KW - magnesium compounds

KW - metallic thin films

KW - palladium

KW - surface energy

KW - titanium

U2 - 10.1063/1.3210791

DO - 10.1063/1.3210791

M3 - Article

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

M1 - 071903

ER -

Quasifree Mg-H thin films

Abstract

Keywords

UN SDGs

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