کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1608730 1005527 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal structure of gold hydride
ترجمه فارسی عنوان
ساختار بلوری هیدرید طلا
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی


• Volume expansion of metal hydrides is due to the increase in the s-band filling.
• AuH structure is similar to that of Hg having one more s electron compared to Au.
• Structure stability of both Hg and AuH is governed by the Hume-Rothery rule.

A number of transition metal hydrides with close-packed metal sublattices of fcc or hcp structures with hydrogen in octahedral interstitial positions were obtained by the high-pressure-hydrogen technique described by Ponyatovskii et al. (1982). In this paper we consider volume increase of metals by hydrogenation and possible crystal structure of gold hydride in relation with the structure of mercury, the nearest neighbor of Au in the Periodic table. Suggested structure of AuH has a basic tetragonal body-centered cell that is very similar to the mercury structure Hg-t I 2. The reasons of stability for this structure are discussed within the model of Fermi sphere–Brillouin zone interactions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 645, Supplement 1, 5 October 2015, Pages S128–S131
نویسندگان
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