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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6. (a)~(e) SA/50纳米颗粒的原子探针结构分析；(f)脱水SA/50的二维27Al双量子-单量子相关谱（27Al DQ-SQ 2D NMR）谱（18.8 T下采集，参数νR=20 kHz）及(g)~(k)二维谱中对角峰及交叉峰相应的一维27Al NMR谱切片[8]

Fig.6. (a)~(e) 3D APT reconstruction of two isolated SA/50 nanoparticles showing all atoms; (f) 27Al DQ-SQ 2D NMR spectrum recorded at 18.8 T with νR=20 kHz of dehydrated SA/50, and (g)~(k) rows extracted from the 2D spectrum corresponding to the various autocorrelation and cross-peaks[8]