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Pyridine chemisorption, complexes

Figure 7.11 Schematic representations of (a) the proposed acid sites of activated T -alumina and (b) the complexes formed on pyridine chemisorption, (i) The weak Lewis acid site, (ii) the medium-weak Lewis acid site, (iii) the medium-strong Lewis acid site, and (iv) the strong Lewis acid site. The asterisks in (a) indicate coordinative unsaturation. Reproduced with permission from Ref. [60]. Figure 7.11 Schematic representations of (a) the proposed acid sites of activated T -alumina and (b) the complexes formed on pyridine chemisorption, (i) The weak Lewis acid site, (ii) the medium-weak Lewis acid site, (iii) the medium-strong Lewis acid site, and (iv) the strong Lewis acid site. The asterisks in (a) indicate coordinative unsaturation. Reproduced with permission from Ref. [60].
In the present work we examine the microporosity of a TSLS complex formed from synthetic imogolite and natural montmorillonite. Nitrogen adsorption and desorption isotherms are reported and analyzed in terms of microporous volume and surface area. Also, the adsorption isotherm for an organic adsorbate, m-xylene, is reported. Preliminary FTIR results for the chemisorption of pyridine and catalytic studies of the dealkylation of cumene suggest that TSLS complexes are promising microporous acids for shape selective chemical conversions. [Pg.120]

See other pages where Pyridine chemisorption, complexes is mentioned: [Pg.276]    [Pg.224]    [Pg.304]    [Pg.126]    [Pg.241]    [Pg.373]    [Pg.112]    [Pg.762]    [Pg.213]    [Pg.42]    [Pg.330]   


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