Key Laboratory of Applied Chemistry of Zhejiang Province , Zhejiang University , Hangzhou 310028 , China.
State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310007 , China.
ACS Appl Mater Interfaces. 2018 Oct 3;10(39):33214-33220. doi: 10.1021/acsami.8b10620. Epub 2018 Sep 20.
Modern methodologies for synthesizing zeolites typically involve the employment of costly organic structure-directing agents. Herein, we report the design synthesis of aluminosilicate zeolite with ITE structure using an inexpensive nickel-amine complex (nickel-pentaethylenexamine) as a novel structure-directing agent. Characterizations including X-ray diffraction, scanning electron microscopy, N sorption isotherms, and Al magic-angle spinning NMR techniques show that the ITE zeolite has high crystallinity, perfect crystals, large surface area, and abundant aluminum species in the framework. More importantly, catalytic tests on the hydrogenation of CO into methane show that the Ni-ITE zeolite exhibits better catalytic performance than aluminosilicate-supported and silica-supported nickel catalysts. Obviously, the use of nickel-amine complex offers an alternative and facile way to synthesize aluminosilicate zeolites.
本文报道了使用一种廉价的镍-五亚乙基六胺配合物（镍-五亚乙基六胺）作为新型结构导向剂，设计合成具有 ITE 结构的铝硅酸盐沸石。通过 X 射线衍射、扫描电子显微镜、N 吸附等温线和 Al 魔角旋转 NMR 技术对其进行了表征，结果表明，该 ITE 沸石具有较高的结晶度、完美的晶体、较大的比表面积和丰富的骨架铝物种。更重要的是，在 CO 加氢甲烷的催化反应中，Ni-ITE 沸石表现出比负载型镍催化剂更好的催化性能。显然，镍-胺配合物的使用为合成铝硅酸盐沸石提供了一种替代且简便的方法。
