Effect of size and shape on specific heat, melting entropy and enthalpy of nanomaterials

Publication date: Available online 11 October 2016 Source:Journal of Taibah University for Science Author(s): Madan Singh, Sekhants’o Lara, Spirit Tlali A simple theory is proposed to study the size and shape dependent Specific heat, melting entropy and enthalpy of nanomaterials. It is shown that the particle size and shape affect the Specific heat, melting entropy and enthalpy of nanomaterials. The model is applied to Ag, Cu, In, Se, Au and Al nanomaterials in spherical, nanowire and nanofilms shapes. It is found that the specific heat increases with the decrease in particle size. Whereas, melting entropy and enthalpy decrease as the particle size decreases. Our theoretical predictions agree well with available experimental and computer simulation results, which support the validity of formulation developed.

Source: Journal of Taibah University for Science - October 11, 2016 Category: Science Source Type: research