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Quantitative TEM analysis of a hexagonal mesoporous silicate structure

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Show simple item record Hudson, Sarah P. Tanner, David A. Redington, Wynette Magner, Edmond Hodnett, Benjamin K. Nakahara, Shohei 2014-03-04T15:47:46Z 2014-03-04T15:47:46Z 2006
dc.identifier.citation Hudson, S; Tanner, DA; Redington, W; Magner, E; Hodnett, K; Nakahara, S (2006) 'Quantitative TEM analysis of a hexagonal mesoporous silicate structure'. Physical Chemistry Chemical Physics, 8 (29):3467-3474 en_US
dc.description peer-reviewed en_US
dc.description.abstract TEM analysis of mesoporous materials is generally undertaken to give qualitative results. Accurate quantitative analysis is demonstrated in this study. A systematic image analysis of a powder form of a hexagonal mesoporous material known as KIT-6 is conducted using a transmission electron microscope (TEM). Three types of image contrast typically appear in this material (a hexagonal honeycomb structure, wide and narrow parallel lines). The honeycomb face is used to characterise this material in terms of a conventional 2-D hexagonal structure and the d-spacings for the (100) and (110) planes are experimentally measured in varying focus conditions. A tilting experiment is conducted to determine how the angle of tilt affects the line spacing and their visibility. Tilting has very little effect on the line spacing, whereas it affects the visibility of both the wide and narrow lines by limiting an angle range of visibility. The hexagonal lattice structure parameter determined by TEM method is found to be similar to 7% lower than that calculated by low-angle X-ray diffraction. Thus we conclude that TEM data can be used to determine the geometry and dimensions of hexagonal mesoporous silica materials, with a small error in the hexagonal lattice parameter. en_US
dc.language.iso eng en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartofseries Physical Chemistry Chemical Physics;8 (29), pp. 3467-3474
dc.subject molecular-sieves en_US
dc.subject SBA-15 en_US
dc.subject copolymer en_US
dc.subject triblock en_US
dc.title Quantitative TEM analysis of a hexagonal mesoporous silicate structure en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2013-11-29T16:24:35Z
dc.description.version Accepted
dc.contributor.sponsor EI en_US
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor HEA en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1133195
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed

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