کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7720084 1497501 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of the thermodynamic and kinetic properties of La-Fe-B system hydrogen-storage alloys
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Investigation of the thermodynamic and kinetic properties of La-Fe-B system hydrogen-storage alloys
چکیده انگلیسی
La-Fe-B hydrogen-storage alloys were prepared using a vacuum induction-quenching furnace with a rotating copper wheel. The thermodynamic and kinetic properties of the La-Fe-B hydrogen-storage alloys were investigated in this work. The P-C-I curves of the La-Fe-B alloys were measured over a H2 pressure range of 10−3 MPa to 2.0 MPa at temperatures of 313, 328, 343 and 353 K. The P-C-I curves revealed that the maximum hydrogen-storage capacity of the alloys exceeded 1.23 wt% at a pressure of approximately 1.0 MPa and temperature of 313 K. The standard enthalpy of formation ΔH and standard entropy of formation ΔS for the alloys' hydrides, obtained according to the van't Hoff equation, were consistent with their application as anode materials in alkaline media. The alloys also exhibited good absorption/desorption kinetics at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 8, 6 March 2014, Pages 3805-3809
نویسندگان
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