On the formation of CoAPSO-44
Abstract
Hydrothermal synthesis of CoAPSO-44 in the presence of cyclohexylamine (CHA) as the template is generally accompanied by the formation of an unknown phase, “Co(APSO)N.” Electronic spectroscopy indicates that CO(APSO)N contains Co2+ in a pentacoordinated environment. When Co(APSO)N is heated at 195°C in a water suspension under autogenic pressure, two processes occur: (a) a partial conversion of Co(APSO)N into CoAPSO-44 and (b) decomposition of Co(APSO)N into Co- and Al-phosphates. Thermal removal of CHA from Co(APSO)N results in a breakdown of the latter's cyrstal lattice.
Keywords:
CoAPSO-44 / aluminophosphates / molecular sieves / cyclohexylamine / hydrothermal synthesis / organic template / Co(ll) coordinationSource:
ZEOLITES, 1992, 12, 8, 925-928Publisher:
- Butterworth-Heinemann
Funding / projects:
- Ministry of Science and Technology of Slovenia
- Research Fund of Serbia
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Batista, Jurka AU - Kaučič, Venčeslav AU - Rajić, Nevenka AU - Stojaković, Djordje PY - 1992 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5054 AB - Hydrothermal synthesis of CoAPSO-44 in the presence of cyclohexylamine (CHA) as the template is generally accompanied by the formation of an unknown phase, “Co(APSO)N.” Electronic spectroscopy indicates that CO(APSO)N contains Co2+ in a pentacoordinated environment. When Co(APSO)N is heated at 195°C in a water suspension under autogenic pressure, two processes occur: (a) a partial conversion of Co(APSO)N into CoAPSO-44 and (b) decomposition of Co(APSO)N into Co- and Al-phosphates. Thermal removal of CHA from Co(APSO)N results in a breakdown of the latter's cyrstal lattice. PB - Butterworth-Heinemann T2 - ZEOLITES T1 - On the formation of CoAPSO-44 EP - 928 IS - 8 SP - 925 VL - 12 DO - 10.1016/0144-2449(92)90156-J ER -
@article{ author = "Batista, Jurka and Kaučič, Venčeslav and Rajić, Nevenka and Stojaković, Djordje", year = "1992", abstract = "Hydrothermal synthesis of CoAPSO-44 in the presence of cyclohexylamine (CHA) as the template is generally accompanied by the formation of an unknown phase, “Co(APSO)N.” Electronic spectroscopy indicates that CO(APSO)N contains Co2+ in a pentacoordinated environment. When Co(APSO)N is heated at 195°C in a water suspension under autogenic pressure, two processes occur: (a) a partial conversion of Co(APSO)N into CoAPSO-44 and (b) decomposition of Co(APSO)N into Co- and Al-phosphates. Thermal removal of CHA from Co(APSO)N results in a breakdown of the latter's cyrstal lattice.", publisher = "Butterworth-Heinemann", journal = "ZEOLITES", title = "On the formation of CoAPSO-44", pages = "928-925", number = "8", volume = "12", doi = "10.1016/0144-2449(92)90156-J" }
Batista, J., Kaučič, V., Rajić, N.,& Stojaković, D.. (1992). On the formation of CoAPSO-44. in ZEOLITES Butterworth-Heinemann., 12(8), 925-928. https://doi.org/10.1016/0144-2449(92)90156-J
Batista J, Kaučič V, Rajić N, Stojaković D. On the formation of CoAPSO-44. in ZEOLITES. 1992;12(8):925-928. doi:10.1016/0144-2449(92)90156-J .
Batista, Jurka, Kaučič, Venčeslav, Rajić, Nevenka, Stojaković, Djordje, "On the formation of CoAPSO-44" in ZEOLITES, 12, no. 8 (1992):925-928, https://doi.org/10.1016/0144-2449(92)90156-J . .