title: Framework Al zoning in zeolite ECR-1.
abstract: Rietveld analyses of the synchrotron X-ray diffraction data for various cation forms of zeolite ECR-1 have demonstrated framework Al zoning, which parallels the alternation of Al-rich maz and Al-poor mor layers. This can be further supported by notable differences in the average bond valence of its 10 crystallographically distinct tetrahedral sites.
authors.affiliation: Centre for Ordered Nanoporous Materials Synthesis, School of Environmental Science and Engineering and Department of Chemical Engineering, POSTECH, Pohang 790-784, Korea. sbhong@postech.ac.kr.
authors.forename: Jiho
authors.initials: J
authors.lastname: Shin
authors.forename: Nak Ho
authors.initials: NH
authors.lastname: Ahn
authors.forename: Sung June
authors.initials: SJ
authors.lastname: Cho
authors.forename: Limin
authors.initials: L
authors.lastname: Ren
authors.forename: Feng-Shou
authors.initials: FS
authors.lastname: Xiao
authors.forename: Suk Bong
authors.initials: SB
authors.lastname: Hong