Hydrogen diffusion through Ru thin films

被引：7
|
作者：
Soroka, O. [1 ]
Sturm, J. M. [1 ]
Lee, C. J. [2 ]
Schreuders, H. [3 ]
Dam, B. [3 ]
Bijkerk, F. [1 ]
机构：
[1] Univ Twente, MESA Inst Nanotechnol, Ind Focus Grp XUV Opt, POB 217, NL-7500 AE Enschede, Netherlands
[2] Fontys Inst Engn, De Rondom 1, NL-5612 AP Eindhoven, Netherlands
[3] Delft Univ Technol, Fac Appl Sci, Dept Chem Engn, Mat Energy Convers & Storage MECS, Maasweg 9, NL-2629 HZ Delft, Netherlands
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 29期
关键词：
Hydrogen diffusion; Ruthenium; Yttrium; Optical transmission; Activation energy; PERMEATION BARRIER; COMBINATORIAL METHOD; SOLUBILITY; ADSORPTION; STABILITY; RUTHENIUM; KINETICS; COATINGS; HYDRIDE;
D O I：
10.1016/j.ijhydene.2020.03.201
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, an experimental measurement of the diffusion constant of hydrogen in ruthenium is presented. By using a hydrogen indicative Y layer, placed under the Ru layer, the hydrogen flux through Ru was obtained by measuring the optical changes in the Y layer. We use optical transmission measurements to obtain the hydrogenation rate of Y in a temperature range from room temperature to 100 degrees C. We show that the measured hydrogenation rate is limited mainly by the hydrogen diffusion in Ru. These measurements were used to estimate the diffusion coefficient, D, and activation energy of hydrogen diffusion in Ru thin films to be D = 5.9 x 10(-14) m(2)/s.exp (-0.33 eV/k(B)tau), with k(B) the Boltzmann constant and tau the temperature. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：15003 / 15010
页数：8
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