(485d) Brownian Diffusion of Single Walled Carbon Nanotubes in Rock-like Colloidal Crystal Pores | AIChE

(485d) Brownian Diffusion of Single Walled Carbon Nanotubes in Rock-like Colloidal Crystal Pores

Authors 

Tang, Z. - Presenter, Rice University
Eichmann, S. L., Rice University
MacKintosh, F. C., Vrije Universiteit
Pasquali, M., Rice University
The high aspect ratio of Single-Walled Carbon Nanotube (SWCNT) enables better access to smaller pores than other spherical nanoparticle. Moreover, the unique sensor properties, such as temperature and chemical stability, high electric and heat conductivity, make it a competitive sensor in various applications. We study SWCNT diffusion dynamics and SWCNT length-dependent diffusivities in rock-like highly ordered colloidal crystal pores as a model for oil reservoir rock.

Here, we use near-infrared microscopy to image SWCNT diffusion in highly ordered colloidal crystal pores. The highly ordered colloidal crystal pore, an ideal model for rock reservoir, is obtained by convective self-assembly of micrometer size silica colloids. These results are crucial to understand diffusive dynamics and to apply SWCNT as a molecule sensor in porous medium.

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