Buckypaper-based Approaches

Another way to produce buckypaper without the dispersion and filtration method is the domino pushing effect . Ding et al present a simple and effective macroscopic manipulation of aligned CNT arrays. The domino pushing of the CNT arrays can efficiently ensure that most of the CNTs are well aligned tightly in the buckypaper structure. 

Buckypaper normally has a laminar structure with the orientations of the bundles of tubes being random in the plane of the sheet. This paper is extremely porous and contains up to 70% free volume. The pore size is theoretically tunable depending on the nanotube size and shape and the casting 

A similar technique was demonstrated by Wang et al They also fabricated buckypaper but incorporated an epoxy-hardener blend by Buchner filtration. To reduce the viscosity, the blend was mixed with acetone. Very good infiltration was observed throughout the paper. The epoxy was cured by hot pressing 3-5 stacked sheets together at 177 °C to form a thick composite film. 

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The Katz research group published two consecutive reports in 2012 of glucose/02 EFCs operating in mollusks [129,130]. The electrodes were fabricated using a DET-based design based on CNT paper (buckypaper), with laccase and PQQ-dependent GDH as cathodic and anodic enzymes, respectively. The enzymes were immobilized on nanostmetured electrodes by cross-linking. Such a DET-based approach simplifies... 

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