A nanosized aluminoborate (PKU-5) with Cr-centered octahedral framework: Solid-phase synthesis, characterizations and catalytic ammoximation of cyclohexanone to cyclohexanone azine

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• 作者：Fenhua Zhang ; Weilu Wang ; Shixiang Hu ; Xiaotong Ma ; Wenliang Gao ; ^{gaowl@cqu.edu.cn} ; Rihong Cong ; Tao Yang ; ^{taoyang@cqu.edu.cn}
• 关键词：Aluminoborates ; Redox molecular sieves ; Isomorphous substitution ; Ketone ammoximation ; Reaction mechanism
• 刊名：Applied Catalysis A: General
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：531
• 期：Complete
• 页码：60-68
• 全文大小：3153 K
• 卷排序：531

文摘

Octahedron-based framework aluminoborates provide a powerful alternative strategy to prepare redox molecular sieves with different transition metals. Nano-scaled Cr-PKU-5 particles were synthesized with a two-step template annealing method. Cr-PKU-5 was favorable to produce azine rather than oxime in the liquid-phase ammoximation of ketone. Cr sites are most likely to efficiently decompose H2O2 into highly-active O* species.