عنوان : ( Study of the hydrogen absorption properties of LaNi5 Intermetallic Alloy5 )
نویسندگان: رضا سرحدی - دانشجو , سید مجتبی زارعی-دانشجو , هادی عربی , فائز پورآرین-استاد مشاور ,
Full Textچکیده
In this paper, the hydrogen absorption properties of LaNi5 alloy have been investigated by Sievert's volumetric method. According to results of pressure-composition-temperature curves, with increasing of temperature, the hydrogen absorption capacity and plateau pressure decrease and increase, respectively. The enthalpy (-29.98 ± 0.38 kJ/molH2) and entropy (-104.98 ± 1.21 J/K molH2) of LaNi5Hx hydride formation were calculated using Van't Hoff equation. The rate constant of hydrogen absorption reaction at different temperature were obtained using Jander diffusion model (JDM) that confirmed an increase in hydrogen absorption rate with temperature. The activation energy for hydrogen absorption reaction was estimated by Arrhenius relationship about 24.11 kJ/mol.H2. The obtained results are in good agreement with others.
کلمات کلیدی
, جذب هیدروژن, 5 LaNi, فشار فلاتی, . انرژی فعالسازی, آنتروپی, آنتالپی,
@inproceedings{paperid:1037177,
author = {رضا سرحدی - دانشجو and سید مجتبی زارعی-دانشجو and عربی, هادی and فائز پورآرین-استاد مشاور},
title = {Study of the hydrogen absorption properties of LaNi5 Intermetallic Alloy5},
booktitle = {کنفرانس فیزیک ایران1392},
year = {2013},
location = {بیرجند, ايران},
keywords = {جذب هیدروژن، 5 LaNi، فشار فلاتی، . انرژی فعالسازی، آنتروپی، آنتالپی،},
}
%0 Conference Proceedings
%T Study of the hydrogen absorption properties of LaNi5 Intermetallic Alloy5
%A رضا سرحدی - دانشجو
%A سید مجتبی زارعی-دانشجو
%A عربی, هادی
%A فائز پورآرین-استاد مشاور
%J کنفرانس فیزیک ایران1392
%D 2013
