Microcalorimetry insight into size effect on standard molar reaction enthalpy of CdMoO4 nanosystem

Uniform CdMoO₄ nanooctahedra with tunable sizes have been synthesised via a facile and mild microemulsion method at room temperature. The reaction between CdMoO₄ nanooctahedra and dilute hydrochloric acid was in situ monitored using microcalorimetry at 298.15 K, and microcalorimetric heat flow curves from this reaction process were obtained. Combined with an inductively coupled plasma optical emission spectrometer technique, the size effect of CdMoO₄ nanooctahedra on standard molar reaction enthalpy (Δ_rH_m^Θ) was studied. The results indicate that the value of Δ_rH_m^Θ decreased with decreased particle size.