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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2. (a, b) SA/10和(c, d) SA/30的(a, c) 723 K下脱水后及(b, d)再吸水后的27Al多量子魔角旋转（MQMAS）谱（16.4 T）；以及(e, f) SA/10和(g, h) SA/30相应的能量色散X射线光谱（EDX）[6].(i) SA/10的三维原子探针层析成像分析（3D-APT）[8]

Fig.2. 27Al MQMAS spectra of SA/10 (a, b) and SA/30 (c, d) after dehydrated at 723 K (a, c) and after rehydration (b, d), recorded at a magnetic field of 16.4 T, and corresponding EDX images of SA/10 (e, f) and SA/30 (g, h)[6]. (i) 3D-APT reconstruction of isolated SA/10 nanoparticles[8]