z-logo
open-access-imgOpen Access
Physicochemical Property Investigations of Perovskite-Type Layer Crystals [NH3(CH2)nNH3]CdCl4 (n = 2, 3, and 4) as a Function of Length n of CH2
Author(s) -
Ae Ran Lim,
Sun Ha Kim
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c04671
Subject(s) - molecular dynamics , electrochemistry , thermal stability , lattice energy , lattice (music) , supercapacitor , carbon 13 nmr , materials science , relaxation (psychology) , ion , perovskite (structure) , crystallography , carbon fibers , chemistry , crystal structure , stereochemistry , computational chemistry , organic chemistry , electrode , psychology , social psychology , physics , composite material , composite number , acoustics
Hybrid perovskites have potential applications in several electrochemical devices such as supercapacitors, batteries, and fuel cells. Here, the thermal stabilities as a function of the length n of the CH 2 groups in [NH 3 (CH 2 ) n NH 3 ]CdCl 4 ( n = 2, 3, and 4) crystals were considered by TGA and DTA. The structural characteristics and molecular dynamics were studied by MAS and static NMR experiments. A comparison of spin-lattice relaxation times indicated that the organic cation containing 1 H and 13 C was significantly more flexible than the inorganic anion containing 113 Cd. The flexibility of 1 H increased with an increase in the length of CH 2 in the carbon chain, resulting in a decrease in the activation energy ( E a ) of 1 H. The E a of 13 C at n = 3 and 4 was more flexible at high temperatures than at low temperatures. In contrast, the E a of 13 C at n = 2 was more flexible at low temperatures. These results provide insight into the thermal stability and molecular dynamics of these crystals as a function of the length n of CH 2 groups in the carbon chain and are expected to facilitate applications.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here