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Synthesis of graphene nanosheet powder with layer number control via a soluble salt-assisted route

Synthesis of graphene nanosheet powder with layer number control via a soluble salt-assisted route As it is widely known, the main component in mandrel pencil is graphite due to its layer-like structure. Scoring the mandrel on a paper sheet imprints a light black line, which consists of thin graphene nanosheets. However, paper is insoluble in water. Therefore, it is difficult to collect graphene nanosheet powder imprinted on paper. If graphene nanosheets could be uniformly dispersed on the surface of soluble salts through ball-milling of graphite, the above difficulty would be easily overcome. After a simple washing process, the residue would be what we expected, graphene powder. In our previous reports, we have developed a soluble salt-assisted route to prepare GaN and ZnO nanopowders by uniformly dispersing metallic Ga or Zn on the surface of Na2SO4 powder, followed by a nitridation or oxidation process and a final washing.14,15 Herein, we would like to extend the soluble salt-assisted route again to fabricate graphene powder. Through simple mechanical peeling and washing, graphene nanosheet powder has been harvested conveniently and economically. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png RSC Advances Royal Society of Chemistry

Synthesis of graphene nanosheet powder with layer number control via a soluble salt-assisted route

Royal Society of Chemistry — Mar 7, 2014

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Royal Society of Chemistry
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Abstract

As it is widely known, the main component in mandrel pencil is graphite due to its layer-like structure. Scoring the mandrel on a paper sheet imprints a light black line, which consists of thin graphene nanosheets. However, paper is insoluble in water. Therefore, it is difficult to collect graphene nanosheet powder imprinted on paper. If graphene nanosheets could be uniformly dispersed on the surface of soluble salts through ball-milling of graphite, the above difficulty would be easily overcome. After a simple washing process, the residue would be what we expected, graphene powder. In our previous reports, we have developed a soluble salt-assisted route to prepare GaN and ZnO nanopowders by uniformly dispersing metallic Ga or Zn on the surface of Na2SO4 powder, followed by a nitridation or oxidation process and a final washing.14,15 Herein, we would like to extend the soluble salt-assisted route again to fabricate graphene powder. Through simple mechanical peeling and washing, graphene nanosheet powder has been harvested conveniently and economically.

Journal

RSC AdvancesRoyal Society of Chemistry

Published: Mar 7, 2014

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