ressure-inducedhydrogen-dominantmetallicstate…：壓力誘導(dǎo)氫占主導(dǎo)地位的金屬狀態(tài)…-文庫吧
2024-12-28 08:41 本頁面
【正文】 Hydrogen atoms are in the interstitial site of metal lattice. For the model of dense metallic hydrogen, hydrides (for example MHx) are paid attention. hydrides MHx 。 YH3, AlH3… Hydrogen molecular is contained mol per mol of M. Hydrogen in MHx is prepressed at ambient pressure. The partial hydrogen volume in MHx That volume in H2. At much lower pressure, hydrogen dense metallic state could be observed. 引き去ること Hydrogen atomic volume in MHx from subtraction of atomic volume of M. AlH3 R3c structure Two AlH6units share this H atom. AlH6 octahedrons linked by AlHAl bridges The partial hydrogen volume per H atom in AlH3 ( A3) is smaller than that in H2 ( A3). Hydrogen in AlH3 is prepressed ! P ~ ambient pressure H AlH distance: A HH distance: A V
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