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五配位铝强化硅铝固体酸的固体核磁共振研究
王子春1,黄骏2,姜怡娇1,*()
Solid-State NMR Spectroscopy Studies of Enhanced Acidity of Silica-Aluminas Based on Penta-Coordinated Aluminum Species
Zi-chun WANG1,Jun HUANG2,Yi-jiao JIANG1,*()

图11. 27Al MAS NMR谱（磁场强度11.7 T）：(a) ASA, (b) Pt/ASA, (c) Al2O3（黄色虚线）和Pt/Al2O3（蓝色实线）.静态 27Al NMR谱：(d) H2PtCl6与ASA混合并搅拌后，(e)样品(d)与氨水混合并搅拌后，以及(f)样品(e)在90 ℃下加热1 h后[27]

Fig.11. 27Al MAS NMR spectra of (a) ASA, (b) Pt/ASA, (c) Al2O3 (yellow dash line), and Pt/Al2O3 (blue solid line). Static 27Al NMR of wet samples obtained after: (d) H2PtCl6 mixed with ASA, (e) mixing (d) with NH3•H2O, and (f) after heating mixture (e) at 90 ℃ for 1 h, recorded at 11.7 T[27]