کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1625972 | 1516429 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A high-resolution neutron scattering study of the hydrogen-driven metal-insulator phase transition in KC8Hx
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A high-resolution neutron scattering study of the hydrogen-driven metal-insulator phase transition in KC8Hx A high-resolution neutron scattering study of the hydrogen-driven metal-insulator phase transition in KC8Hx](/preview/png/1625972.png)
چکیده انگلیسی
Neutron diffraction studies on hydrogen chemisorbed into the stage-1 graphite intercalation compound KC8 are presented, including time-resolved scans across the hydriding transition to the saturated compound KC8H0.67. This transition involved a hydrogen-driven structural change taking place over 11.5Â h. The Rietveld-refined structure of KC8 was confirmed to be Fdd2 using GSAS. Proposed structures for the stage-2 saturated compound were fitted, the most successful being a tri-layer C12/m1 structure with a reduced Ï2 value of 1.940. A partial resolution of the in-plane structure is thus achieved, but further refinement is required to elucidate the hydrogen siting and the diffusion process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volumes 446â447, 31 October 2007, Pages 397-401
Journal: Journal of Alloys and Compounds - Volumes 446â447, 31 October 2007, Pages 397-401
نویسندگان
Arthur Lovell, Neal T. Skipper, Steve M. Bennington, Ron I. Smith,