Figure 1. a)-MWCNT nanoparticles; b)-structure of MWCNT nanoparticles; c)-Ultrasonicator; d)-prepared nanofluid based on MWCNT; e) Zetasizer S90; f) Mastersizer-2000 with dispergator Hydro-2000MU

From: Investigation of thermo-physical properties of nanofluids based on nanoparticles of various materials for using as a heat transfer fluid for solar thermal applications