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Title: Reactivity of lithium and platinum at elevated densities

Abstract

Through a series of x-ray diffraction experiments, combined with first-principles calculations, we show that the nobility of platinum can be overcome, reacting with lithium under compression at room temperature. Pressures as low as 2.3 GPa lead to the synthesis of Li11Pt2, exhibiting the highest lithium content of any known intermetallic compound. Above 16 GPa, Li11Pt2 expels Li and transforms to Li2Pt. As a result, this change is accompanied by a transformation in bonding characterized by the formation of one-dimensional Pt-Pt bonds with increasingly covalent character at higher densities.

Authors:
 [1];  [2];  [1];  [2];  [3];  [4];  [1]
  1. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (People's Republic of China)
  2. The Univ. of Edinburgh, Edinburgh (United Kingdom)
  3. The Univ. of Edinburgh, Edinburgh (United Kingdom); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. The Univ. of Edinburgh, Edinburgh (United Kingdom); Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (People's Republic of China)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532403
Grant/Contract Number:  
AC02-76SF00515; EP/P022561/1; EP/L504956/1; EP/M506515/1
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 22; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Binns, Jack, Marqués, Miriam, Dalladay-Simpson, Philip, Turnbull, Robin, Frost, Mungo, Gregoryanz, Eugene, and Howie, Ross T. Reactivity of lithium and platinum at elevated densities. United States: N. p., 2019. Web. doi:10.1103/physrevb.99.220101.
Binns, Jack, Marqués, Miriam, Dalladay-Simpson, Philip, Turnbull, Robin, Frost, Mungo, Gregoryanz, Eugene, & Howie, Ross T. Reactivity of lithium and platinum at elevated densities. United States. doi:10.1103/physrevb.99.220101.
Binns, Jack, Marqués, Miriam, Dalladay-Simpson, Philip, Turnbull, Robin, Frost, Mungo, Gregoryanz, Eugene, and Howie, Ross T. Mon . "Reactivity of lithium and platinum at elevated densities". United States. doi:10.1103/physrevb.99.220101. https://www.osti.gov/servlets/purl/1532403.
@article{osti_1532403,
title = {Reactivity of lithium and platinum at elevated densities},
author = {Binns, Jack and Marqués, Miriam and Dalladay-Simpson, Philip and Turnbull, Robin and Frost, Mungo and Gregoryanz, Eugene and Howie, Ross T.},
abstractNote = {Through a series of x-ray diffraction experiments, combined with first-principles calculations, we show that the nobility of platinum can be overcome, reacting with lithium under compression at room temperature. Pressures as low as 2.3 GPa lead to the synthesis of Li11Pt2, exhibiting the highest lithium content of any known intermetallic compound. Above 16 GPa, Li11Pt2 expels Li and transforms to Li2Pt. As a result, this change is accompanied by a transformation in bonding characterized by the formation of one-dimensional Pt-Pt bonds with increasingly covalent character at higher densities.},
doi = {10.1103/physrevb.99.220101},
journal = {Physical Review B},
number = 22,
volume = 99,
place = {United States},
year = {2019},
month = {6}
}

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