TY - JOUR
T1 - The formation mechanism of ZSM-5 zeolite membranes
AU - Li, Yongsheng
AU - Shi, Jianlin
AU - Wang, Jinqu
AU - Yan, Dongsheng
PY - 2002
Y1 - 2002
N2 - Continuous ZSM-5 zeolite membranes have been prepared by multi in-situ crystallization (MISC) and temperature-varying hydrothermal synthesis (TVHS), respectively. The membrane formation process was discussed, and the formation mechanism was proposed. During MISC under constant temperature, the crystals formed in the last synthesis grew discontinuously; they would dissolve first and thus induce more nuclei to form. At last, all nuclei grow together into integral zeolite membranes. For TVHS, crystals on the support grew into large ones by a re-nucleation and re-growth process on the crystal surface, in this way the final crystals lost their typical morphology and the intercrystalline gaps disappeared, and the dense membrane was formed.
AB - Continuous ZSM-5 zeolite membranes have been prepared by multi in-situ crystallization (MISC) and temperature-varying hydrothermal synthesis (TVHS), respectively. The membrane formation process was discussed, and the formation mechanism was proposed. During MISC under constant temperature, the crystals formed in the last synthesis grew discontinuously; they would dissolve first and thus induce more nuclei to form. At last, all nuclei grow together into integral zeolite membranes. For TVHS, crystals on the support grew into large ones by a re-nucleation and re-growth process on the crystal surface, in this way the final crystals lost their typical morphology and the intercrystalline gaps disappeared, and the dense membrane was formed.
UR - https://www.scopus.com/pages/publications/0036937522
U2 - 10.1016/s0167-2991(02)80321-4
DO - 10.1016/s0167-2991(02)80321-4
M3 - 文章
AN - SCOPUS:0036937522
SN - 0167-2991
VL - 142 B
SP - 1529
EP - 1536
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
ER -