  In the present work, the flat FLRW Universe has been modelled with cosmic
matter in the form of diffusive barotropic fluid. The diffusive fluid undergoes
dissipation due to diffusion mechanism in the form of cosmological scalar
field. From the perspective of non-equilibrium thermodynamics, the evolution
equations of the universe have been formulated. By a suitable choice of the
cosmological scalar field, emergent scenario of the universe has been obtained.
