Direct production of carbon nanosheets by self-ignition of pyrophoric lithium dialkylamides in air

[Display omitted] •Pyrophoric lithium dialkylamides are used to prepare carbon nanosheets in air.•The self-ignition of the precursors in air generates useful thermoelectric power.•Modification of the carbon nanosheets gives new structures, like gold nanohybrids. Carbon nanosheets are spontaneously p...

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Bibliographic Details
Published in:Materials letters 2019-11, Vol.254, p.58-61
Main Authors: Baikousi, Maria, Chalmpes, Nikolaos, Spyrou, Konstantinos, Bourlinos, Athanasios B., Avgeropoulos, Apostolos, Gournis, Dimitrios, Karakassides, Michael A.
Format: Article
Language:English
Subjects:
Carbon
Carbon nanosheets
Decomposition
Gold
Graphene
Lithium
Lithium dialkylamides
Materials science
Nanohybrids
Nanoparticles
Nanosheets
Pyrophoric precursors
Spontaneous carbonization
Thermoelectric power
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Summary:[Display omitted] •Pyrophoric lithium dialkylamides are used to prepare carbon nanosheets in air.•The self-ignition of the precursors in air generates useful thermoelectric power.•Modification of the carbon nanosheets gives new structures, like gold nanohybrids. Carbon nanosheets are spontaneously produced from the decomposition of pyrophoric lithium dialkylamides in air. The heat released from the exothermic decomposition of the precursors is further utilized to produce mechanical work through a Peltier thermoelectric device. The nanosheets are amorphous containing O/N structural heteroatoms and exhibit specific surface area values roughly in the range 100–150 m2 g−1. Surface decoration of the sheets with gold nanoparticles results in functional nanohybrids that seem to be conceptually similar to those of gold-graphene nanohybrids and could be used for further catalytic applications.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2019.07.019