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Title: Multilayer graphane synthesized under high hydrogen pressure

Journal Article · · Carbon
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [1];  [4];  [1];  [1];  [5]
  1. Inst. of Solid State Physics, Moscow District (Russia)
  2. Moscow State Univ., Moscow (Russian Federation)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Inst. of Problems of Chemical Physics RAS, Moscow District (Russia)
  5. National Univ. of Science and Technology, Moscow (Russia)

A new hydrocarbon – hydrographite – with the composition close to CH is shown to form from graphite and gaseous hydrogen at pressures above 2 GPa and temperatures from 450 to 700 °C. Hydrographite is a black solid thermally stable under ambient conditions. When heated in vacuum, it decomposes into graphite and molecular hydrogen at temperatures from 500 to 650 °C. Powder X-ray diffraction characterizes hydrographite as a multilayer “graphane II” phase predicted by ab initio calculations [Wen X-D et al. PNAS 2011; 108:6833] and consisting of graphane sheets in the chair conformation stacked along the hexagonal c axis in the -ABAB- sequence. The crystal structure of the synthesized phase belongs to the P63mc space group. Moreover, the unit cell parameters are a = 2.53(1) Å and c = 9.54(1) Å and therefore exceed the corresponding parameters of graphite by 2.4(2)% and 42.0(3)%. Stretching vibrations of C–H groups on the surface of the hydrographite particles are examined by infrared spectroscopy.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; 11-02-00401
OSTI ID:
1265908
Alternate ID(s):
OSTI ID: 1266404
Journal Information:
Carbon, Vol. 100, Issue C; ISSN 0008-6223
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (22)

Generation of methane in the Earth's mantle: In situ high pressure-temperature measurements of carbonate reduction journal September 2004
Synthesis of complex hydrocarbon systems at temperatures and pressures corresponding to the Earth’s upper mantle conditions journal July 2010
Thermally stable hydrogen compounds obtained under high pressure on the basis of carbon nanotubes and nanofibers journal March 2004
Hydrogen storage using carbon adsorbents: past, present and future journal February 2001
Hydrogen in the mechanically prepared nanostructured graphite journal November 1999
Electric Field Effect in Atomically Thin Carbon Films journal October 2004
The rise of graphene journal March 2007
Control of Graphene's Properties by Reversible Hydrogenation: Evidence for Graphane journal January 2009
Structure and Layer Interaction in Carbon Monofluoride and Graphane: A Comparative Computational Study journal April 2010
Structure and energetics of hydrogen chemisorbed on a single graphene layer to produce graphane journal August 2011
Chair and Twist-Boat Membranes in Hydrogenated Graphene journal November 2009
Graphane sheets and crystals under pressure journal April 2011
Magnetic ordering in hydrofullerite C60H24 journal January 2002
Toroid type high-pressure device: history and prospects journal September 2004
Neutron spectroscopy of H impurities in PdD: Covibrations of the H and D atoms journal October 2009
Neutron spectroscopy study of single-walled carbon nanotubes hydrogenated under high pressure journal October 2007
Hydrogen desorption property of mechanically prepared nanostructured graphite journal August 2001
Structural change of graphite subjected to mechanical milling journal July 1998
Nanoporous carbon produced by ball milling journal May 1999
Infrared spectra of ground graphite journal April 1971
Bonding in hydrogenated hard carbon studied by optical spectroscopy journal October 1983
Vibrational spectra in the CH stretching region and the structure of the polymethylene chain journal January 1978

Cited By (4)

Pressure-Induced Diels-Alder Reactions in C 6 H 6 -C 6 F 6 Cocrystal towards Graphane Structure journal January 2019
Pressure-Induced Diels-Alder Reactions in C 6 H 6 -C 6 F 6 Cocrystal towards Graphane Structure journal January 2019
Emerging chemical strategies for imprinting magnetism in graphene and related 2D materials for spintronic and biomedical applications journal January 2018
Bulk graphanes synthesized from benzene and pyridine journal January 2017

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