Dehydration behavior of some microporous zincophosphates
Abstract
The dehydration behavior of two synthetic, unsubstituted and cobalt-substituted, zincophos phates (one a sodalite analog and the other a new, hexagonal phase) was studied by TG/DTG and DSC. TG/DTG curves of the sodalite phases were very similar, exhibiting only one major weight loss that shifted to higher temperatures with increased amount of cobalt substitution. The profiles of the corresponding DSC curves, however, differed considerably among themselves.
TG/DTG curves of hexagonal phases showed a more complex, multi-step dehydration behavior; the corresponding DSC curves also exhibited multiple endotherms. An explanation of these phenomena is given in terms of the specific arrangement of water molecules within a particular zincophosphate framework.
Keywords:
Cobalt-Zincophosphates / Dehydration / TG-DTG-DSC / ZincophosphatesSource:
Thermochimica Acta, 1996, 278, 157-164Publisher:
- Elsevier
Funding / projects:
- Ministry of Science and Technology of the Republic of Slovenia
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Rajić, Nevenka AU - Gabrovšek, Roman AU - Kaučič, Venčeslav PY - 1996 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6389 AB - The dehydration behavior of two synthetic, unsubstituted and cobalt-substituted, zincophos phates (one a sodalite analog and the other a new, hexagonal phase) was studied by TG/DTG and DSC. TG/DTG curves of the sodalite phases were very similar, exhibiting only one major weight loss that shifted to higher temperatures with increased amount of cobalt substitution. The profiles of the corresponding DSC curves, however, differed considerably among themselves. TG/DTG curves of hexagonal phases showed a more complex, multi-step dehydration behavior; the corresponding DSC curves also exhibited multiple endotherms. An explanation of these phenomena is given in terms of the specific arrangement of water molecules within a particular zincophosphate framework. PB - Elsevier T2 - Thermochimica Acta T1 - Dehydration behavior of some microporous zincophosphates EP - 164 SP - 157 VL - 278 UR - https://hdl.handle.net/21.15107/rcub_technorep_6389 ER -
@article{ author = "Rajić, Nevenka and Gabrovšek, Roman and Kaučič, Venčeslav", year = "1996", abstract = "The dehydration behavior of two synthetic, unsubstituted and cobalt-substituted, zincophos phates (one a sodalite analog and the other a new, hexagonal phase) was studied by TG/DTG and DSC. TG/DTG curves of the sodalite phases were very similar, exhibiting only one major weight loss that shifted to higher temperatures with increased amount of cobalt substitution. The profiles of the corresponding DSC curves, however, differed considerably among themselves. TG/DTG curves of hexagonal phases showed a more complex, multi-step dehydration behavior; the corresponding DSC curves also exhibited multiple endotherms. An explanation of these phenomena is given in terms of the specific arrangement of water molecules within a particular zincophosphate framework.", publisher = "Elsevier", journal = "Thermochimica Acta", title = "Dehydration behavior of some microporous zincophosphates", pages = "164-157", volume = "278", url = "https://hdl.handle.net/21.15107/rcub_technorep_6389" }
Rajić, N., Gabrovšek, R.,& Kaučič, V.. (1996). Dehydration behavior of some microporous zincophosphates. in Thermochimica Acta Elsevier., 278, 157-164. https://hdl.handle.net/21.15107/rcub_technorep_6389
Rajić N, Gabrovšek R, Kaučič V. Dehydration behavior of some microporous zincophosphates. in Thermochimica Acta. 1996;278:157-164. https://hdl.handle.net/21.15107/rcub_technorep_6389 .
Rajić, Nevenka, Gabrovšek, Roman, Kaučič, Venčeslav, "Dehydration behavior of some microporous zincophosphates" in Thermochimica Acta, 278 (1996):157-164, https://hdl.handle.net/21.15107/rcub_technorep_6389 .