Conductive liquid carbon nanotubes appropriate millimeter-long single-walled nanotubes to associate degree tightly, imprinting a separate canvass on brilliant mechanically skillful and electric belongingses. An actuator cartoon strip, constructed aside sandwiching an ionic-liquid-gel electrolyte bed on the conductive liquid carbon nanotube demonstrates a declamatory contortion in immediate reaction (foursome metronome marking per 0.05 s) to blue enforced potentials, and a high pressure enduringness au courant ten thousand clips uninterrupted functionings.
The present invention relates to technology for preparing a carbon nanotube/ionic liquid composite by applying a polymer ionic liquid to the surfaces of carbon nanotubes, and to a method for preparing a carbon nanotube/conductive polymer composite having good dispersion characteristics by using the carbon nanotube/ionic liquid composite as a template polymerization derivative and a dopant in a conductive polymer synthesis process. According to the technical concept of the present invention, in a process for preparing a mixture of a conductive liquid carbon nanotubes and conductive liquid carbon nanotube, the problem of phase separation between the conductive polymer and the carbon nanotubes, which can be the main drawback of a simple mixture composed of two components, can be overcome. In addition, dispersion in an organic solvent can be largely improved through a simple ion exchange method.
Afresh complex electrode has been constructed expending multiwall nanotubes (MWCNT) and the ionic limpid n-octylpyridinum hexafluorophosphate (OPFP). This electrode demonstrates identical attractive electrochemical functionings likened to additional established electrodes expending plumbago and inorganic embrocate, notably bettered sensitiveness and constancy. One and only outstanding vantage of this electrode equated to early electrodes expending nanotubes and another ionic liquidities comprises it is exceedingly crushed electrical capacity and backdrop flows. An decade% (double-u/double-u) consignment of MWCNT equalled took as the optimum constitution supported voltammetric consequences, as well as the stability of the background response in solution. The new composite electrode showed good activity toward hydrogen peroxide and NADH, with the possibility of fabricating a sensitive biosensor for glucose and alcohol using glucose oxidase and alcohol dehydrogenase, respectively, by simply incorporating the specific enzyme within the composite matrix. The marked electrode stability and antifouling features toward NADH oxidation was much higher for this composite compared to a bare glassy carbon electrode. While a loading of 2% MWCNT showed very poor electrochemical behavior, a large enhancement was observed upon gentle heating to 70 °C, which gave a response similar to the optimum composition of 10%. The ease of preparation, low background current, high sensitivity, stability, and small loading of carbon nanotubes using this composite can create new novel avenues and applications for fabricating robust sensors and biosensors for many important species.
Conductive liquid carbon nanotubes is using three-dimensional percolation theory is shown as a solid orange line in the shaded region of Fig. 3c. Poisson’s ratio emerged as a key parameter, and a detailed derivation is provided in the Supplementary Information.The total volume of the composite changed on stretching, which could be calculated as a function of the strain and Poisson’s ratio,but other parameters in the power-law relationship were assumed to be constant. The hot-rolled Ag–MWNT film was non-isotropic, and two experimentally measured values of Poisson’s ratio in the direction of the thickness and width were used in the calculation. The theoretical prediction could describe the experimental data well, although it overestimated the data in the region of high strain. The theory assumes uniform filler distribution upon stretching of the film. However, this assumption fails at high strain, where experimentally measured conductivity decreases rapidly, leading to overestimation of the theory. Figure 3d shows an SEM image of the
hot-rolled Ag–MWNT film at 50% strain. The nAg–MWNT,forming an electrical network between the silver flakes, is clearly shown. The silver nanoparticles on MWNTs therefore improved the contact interface with the silver flakes17.
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