کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7719761 | 1497498 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electronic structure and charge distribution topology of MgH2 doped with 3d transition metals
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ab initio electronic structure calculations of the Mg15TMH32 (TM - transition metals - 6.25Â at.%) systems for the entire 3d TM series have been performed using full-potential (linearized) augmented plane waves with addition of local orbitals (FP-LAPWÂ +Â LO and APWÂ +Â lo) as implemented in WIEN2k code and projected augmented waves (PAW) method using Abinit code. Details of bonding and mechanism of the TM impurities influence on destabilization of MgH2 were established by investigation of changes of electronic structure after the TM impurities insertion into MgH2 and by using the “atoms in molecules” (AIM) Bader's charge density topology analysis. The obtained trends of all calculated observables show that along the 3d series TMs accomplish different kinds of bonding with nearest and next-nearest neighbor hydrogen atoms that in general weaken related Mg-H bonds and destabilize the surrounding MgH2 matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 11, 4 April 2014, Pages 5874-5887
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 11, 4 April 2014, Pages 5874-5887
نویسندگان
Bojana PaskaÅ¡ Mamula, Jasmina GrboviÄ NovakoviÄ, Ivana RadisavljeviÄ, Nenad IvanoviÄ, Nikola NovakoviÄ,