摘要: Using perchloric acid, Nd_2O_3, Er_2O_3 and L-isoleucine (Ile) as raw materials, two crystalline compounds of rare earth isoleucine chlorate, [Nd_2(Ile)_4(H_2O)_8](ClO_4)_6 and [Er_2(Ile)_4(H_2O)_8](ClO_4)_6, were synthesized. The... 展开 Using perchloric acid, Nd_2O_3, Er_2O_3 and L-isoleucine (Ile) as raw materials, two crystalline compounds of rare earth isoleucine chlorate, [Nd_2(Ile)_4(H_2O)_8](ClO_4)_6 and [Er_2(Ile)_4(H_2O)_8](ClO_4)_6, were synthesized. Their compositions were determined after chemical analysis, IR spectrum study, thermogravimetric (TG) and differential thermal analysis (DTA). By using the RD496-2000 microcalorimeter, the standard enthalpies of formation of the synthesized compounds were obtained according to a pre-designed thermal cycle. Four sets of TG data with different heating rates (2.5 K·min~(-1), 5 K·min~(-1), 10 K·min~(-1) and 15 K·min~(-1)) were obtained. After the exploration of the kinetic data in the non-isothermal thermal decomposition process, the activation energy E, the logarithm of the pre-exponential factor lnA, the reaction order n, and the dynamical equation of the water loss step were derived. Ozawa method was also used to test the obtained dynamical data. 收起