Zhang Miao, Liu Lin, He Teng, Li Zhao, Wu Guotao, Chen Ping
Dalian National Laboratory for Clean Energy, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Chem Asian J. 2017 Feb 16;12(4):470-475. doi: 10.1002/asia.201601631. Epub 2017 Jan 23.
Significant progress has been made on the synthesis and application of mesoporous γ-alumina. To date, little attention has been paid to the synthesis of microporous crystalline alumina. Here, fabrication of microporous crystalline γ-alumina using a microporous covalent triazine framework (CTF-1) as a template is described. Microporous crystalline γ-alumina with a micro-meso binary pore system was replicated by infiltration of aluminum nitrate into the micropores of the CTF-1 template through a NH /water-vapor-induced internal hydrolysis method, followed by thermal treatment, and subsequent removal of the CTF-1 template with a 30 % H O aqueous solution. The obtained crystalline γ-alumina material exhibits a large surface area (349 m g ) with micropore distribution centered at about 1.27 nm. Ru supported on microporous γ-Al O can be employed as catalyst for hydrolytic dehydrogenation of ammonia borane, and it exhibits high catalytic activity and good durability. This finding provides a new benchmark for preparing well-defined crystalline microporous alumina materials by a template method, which can be applied in a wide range of fields.
介孔γ-氧化铝的合成与应用已取得显著进展。迄今为止，微孔结晶氧化铝的合成很少受到关注。在此，描述了使用微孔共价三嗪骨架（CTF-1）作为模板制备微孔结晶γ-氧化铝的方法。通过NH/水蒸气诱导的内部水解法将硝酸铝渗透到CTF-1模板的微孔中，随后进行热处理，并用30%的H₂O水溶液去除CTF-1模板，从而复制出具有微-介二元孔系统的微孔结晶γ-氧化铝。所获得的结晶γ-氧化铝材料具有较大的表面积（349 m²/g），微孔分布集中在约1.27 nm处。负载在微孔γ-Al₂O₃上的Ru可作为氨硼烷水解脱氢的催化剂，具有高催化活性和良好的耐久性。这一发现为通过模板法制备明确的结晶微孔氧化铝材料提供了新的基准，可应用于广泛的领域。
