Mass Transport Induced by Heat Current in Carbon Nanotubes

Figure 1

Diagram of the carbon nanotubes (filled with helium atoms, the green balls) coupling to two heat baths (the red and blue balls). The temperatures of the red part and blue part are 𝑇_𝐻 and 𝑇_𝐶, respectively. As 𝑇_𝐻>𝑇_𝐶, the heat current will flow from the left side to the right side. Accordingly, a mass flux induced by the temperature gradient will occur along the axial direction of the CNTs. The length of CNTs is 12 nm.