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- Graphane abstract "Graphane is a two-dimensional polymer of carbon and hydrogen with the formula unit (CH)n where n is large. Graphane should not be confused with graphene, a two-dimensional form of carbon alone. Graphane is a form of hydrogenated graphene. Graphane's carbon bonds are in sp3 configuration, as opposed to graphene's sp2 bond configuration, thus graphane is a two-dimensional analog of cubic diamond.The first theoretical description of graphane was reported in 2003 and its preparation was reported in 2009.Full hydrogenation from both sides of a graphene sheet results in graphane, but partial hydrogenation leads to hydrogenated graphene.Now they usually imply that the term graphane is used for a case when all graphene's bonds are saturated with hydrogen atoms. All other configurations with partly covered surface of graphene usually named as "graphane-like" structures. Graphane and graphane-like structures can be formed by electrolytic hydrogenation of graphene or few-layer graphene or high-oriented pyrolytic graphite. In the last case mechanical exfoliation of hydrogenated top layers can be used.If graphene rests on a silica surface, hydrogenation on only one side of graphene preserves the hexagonal symmetry in graphane. One-sided hydrogenation of graphene becomes possible due to the existence of ripplings. Because the latter are distributed randomly, the obtained graphane is expected to be a disordered material in contrast to two-sided graphane. Annealing allows the hydrogen to disperse, reverting to graphene, the underlying kinetic mechanism of which has been revealed by theoretical simulations.p-doped graphane is postulated to be a high-temperature BCS theory superconductor with a Tc above 90 K.Any disorder in hydrogenation conformation tend to contract the lattice constant by about 2.0 percents, but hydrogenation will decrease the dependence of the lattice constant on temperature, which indicates the possible application of Graphane in precision instruments.Density functional theory calculations suggested that hydrogenated and fluorinated forms of other group IV (Si, Ge and Sn) nanosheets also present properties similar to graphane.".
- Graphane thumbnail Graphane.png?width=300.
- Graphane wikiPageExternalLink 43687.
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- Graphane wikiPageExternalLink 24769.
- Graphane wikiPageID "21330156".
- Graphane wikiPageRevisionID "592964186".
- Graphane hasPhotoCollection Graphane.
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- Graphane verifiedfields "changed".
- Graphane verifiedrevid "458274473".
- Graphane subject Category:Alkanes.
- Graphane subject Category:Carbon_forms.
- Graphane subject Category:Nanomaterials.
- Graphane subject Category:Polymers.
- Graphane subject Category:Superconductors.
- Graphane type Abstraction100002137.
- Graphane type AliphaticCompound114601294.
- Graphane type Alkanes.
- Graphane type Chemical114806838.
- Graphane type Compound114818238.
- Graphane type Material114580897.
- Graphane type Matter100020827.
- Graphane type MethaneSeries114951377.
- Graphane type OrganicCompound114727670.
- Graphane type Part113809207.
- Graphane type PhysicalEntity100001930.
- Graphane type Polymer114994328.
- Graphane type Polymers.
- Graphane type Relation100031921.
- Graphane type Substance100019613.
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- Graphane comment "Graphane is a two-dimensional polymer of carbon and hydrogen with the formula unit (CH)n where n is large. Graphane should not be confused with graphene, a two-dimensional form of carbon alone. Graphane is a form of hydrogenated graphene.".
- Graphane label "Grafaan".
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- Graphane label "Graphane".
- Graphane label "Графан".
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- Graphane depiction Graphane.png.
- Graphane isPrimaryTopicOf Graphane.