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Title: Backbone NxH compounds at high pressures

Optical and synchrotron x-ray diffraction diamond anvil cell experiments have been combined with first principles theoretical structure predictions to investigate mixtures of N2 and H2 up to 55 GPa. Our experiments show the formation of structurally complex van der Waals compounds above 10 GPa. However, we found that these NxH (0.52, H2, and NH3 above approximately 40 GPa. Lastly, our results suggest new pathways for synthesis of environmentally benign high energy-density materials. These materials could also exist as alternative planetary ices.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [6] ;  [7] ;  [8] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12]
  1. Chinese Academy of Sciences (CAS), Anhui (China); Carnegie Institution of Washington, Washington, D.C. (United States); Univ. of Science and Technology of China, Hefei (China)
  2. Carnegie Institution of Washington, Washington, D.C. (United States); Howard Univ., Washington, D.C. (United States)
  3. State Univ. of New York, Stony Brook, NY (United States); Guilin Univ. of Electronic Technology, Guilin (China)
  4. Guilin Univ. of Electronic Technology, Guilin (China)
  5. Skolkovo Institute of Science and Technology, Moscow (Russia); State Univ. of New York, Stony Brook, NY (United States); Guilin Univ. of Electronic Technology, Guilin (China); Moscow Institute of Physics and Technology, Moscow Region (Russian Federation)
  6. Carnegie Institution of Washington, Washington, D.C. (United States)
  7. Univ. College London, London (United Kingdom)
  8. Chinese Academy of Sciences (CAS), Anhui (China)
  9. Howard Univ., Washington, D.C. (United States)
  10. Carnegie Institution of Washington, Washington, D.C. (United States); V.S. Sobolev Institute of Geology and Mineralogy, Novosibirsk (Russia)
  11. Deutsches Elektronen-Synchrotron (DESY) Photon Science, Hamburg (Germany)
  12. Univ. of Chicago, Chicago, IL (United States)
Publication Date:
Grant/Contract Number:
NA0002006
Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 142; Journal Issue: 21; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)
Research Org:
Carnegie Institution of Washington, Washington, D.C. (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1335451
Alternate Identifier(s):
OSTI ID: 1335451