کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803350 1516465 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
H2 reactivity on the surface of LaNi4.7Sn0.3
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
H2 reactivity on the surface of LaNi4.7Sn0.3
چکیده انگلیسی
The influence of O2 and H2O on the hydrogen reactivity with the surface of LaNi4.7Sn0.3 was studied at 298 K by a volumetric Wagener method. A significant enhancement of the H2 reactivity by precovering the surface by both O2 and H2O was observed. A formation of the oxygen deficient SnO2−x in the surface layer acting as a catalyser of the H2 dissociation stands as possible reason for such an improvement. The present data explain the reasons for the improvement of hydrogen cycling properties by the Sn-doped LaNi5 alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 402, Issues 1–2, 27 October 2005, Pages 219-223
نویسندگان
, , , , , , , , ,