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Using a copper wire as the substrate for the CVD growth of a hollow multilayer graphene tube, we prepared a macroscopic porous graphene fiber by removing the copper in an aqueous mixture solution of iron chloride (FeCl3, 1 M) and hydrochloric acid (HCl, 3 M) and continuously drawing the newly released graphene tube out of the liquid. The length of the macroscopic graphene fiber thus produced is determined...
We, along with others, have developed several chemical vapor deposition (CVD) methods for large-scale production of vertically-aligned single-walled, multiwalled, and super-long carbon nanotube arrays. The resultant aligned carbon nanotube arrays can be transferred onto various substrates of particular interest in either a patterned or non-patterned fashion. The well-aligned structure provides additional...
We presented a novel process for constructing high conductivity CNT surfaces. This is done by growing high density CNTs on light-weight and highly flexible polymer substrates. The proposed vertically aligned CNT printing technology can also be adapted for constructing flexible RF circuits integrated on a variety of commercial and defense related applications. Given the desirable RF and mechanical...
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