Temperature-switched MAS NMR: A new meth
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H. Ernst; D. Freude; T. Mildner
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Article
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1994
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Elsevier Science
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English
β 567 KB
The temperature of zeolite samples containing adsorbed methanol molecules was switched from room temperature to 500-600 K within 30-40 s by means of a laser beam. The catalytic reaction was monitored by 13C MAS NMR and 'H MAS NMR, the latter in steps of one second. A two-dimensional Fourier-transfor