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Pure Appl. Chem., 2009, Vol. 81, No. 10, pp. 1871-1880

Published online 2009-09-25

Study of heat capacity enhancement in some nanostructured materials

Zhi-Cheng Tan*, Lan Wang and Quan Shi

Thermochemistry Laboratory and China Ionic Liquids Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Abstract: Heat capacity properties of some nanostructured oxides, metals, and zeolites were studied, mainly with the aid of low-temperature adiabatic calorimetry. Obvious enhancement in the heat capacity of nanostructured materials to different degrees was observed as compared with the corresponding coarse-grained materials. The contributions of enhanced heat capacity of nanostructured materials toward properties such as density, thermal expansion, sample purity, surface effect, and size effect are discussed.