近日，南京大学黎建团队报道了具有本征圆柱形介孔的36环沸石。相关论文发表在2026年4月2日出版的《科学》杂志上。

稳定的超大孔沸石在催化和分子分离方面极具应用价值，但大多数仍为微孔结构，这限制了其对大体积底物的适用性。在少数具有介孔结构的超大孔沸石中，其孔隙通常呈现为细长、非圆形的孔道结构。

研究组报告称，NJU120-6是一种具有本征圆柱形介孔结构的稳定硅酸盐沸石，拥有当前尺寸最大的36环孔隙窗口，自由直径为25.71埃×19.12埃。NJU120-6的骨架密度最低，为每立方纳米9.39个硅原子，其孔容积为每克0.66立方厘米，在温度高达1173开尔文时仍能够维持稳定，可掺入铝和钛元素，从而在催化裂化以及大分子液相烯烃氧化反应中展现出优异性能。

附：英文原文

Title: A 36-ring zeolite with intrinsic cylindrical mesopores

Author: Jiazheng Sun, Xudong Tian, Zhenghan Zhang, Jing Liu, Lei Han, Fanrong Xu, Han Jiang, Chao Ma, Hongwei Guo, Cong Lin, Qike Jiang, Guangchao Li, Tsz Woon Benedict Lo, Haitao Song, Wei Lin, Le Xu, Jian Li

Issue&Volume: 2026-04-02

Abstract: Stable extra-large-pore zeolites are highly desirable for catalysis and molecular separation, but most remain microporous, limiting their effectiveness for bulky substrates. Among the few extra-large-pore zeolites that exhibit mesoporosity, the pores typically form as elongated, noncircular pore apertures. We report that NJU120-6, a stable silicate zeolite with an intrinsic cylindrical mesoporous system, has the currently largest 36-ring windows with a free diameter of 25.71 angstroms by 19.12 angstroms. NJU120-6 exhibits the lowest framework density of 9.39 silicon atoms per cubic nanometer and a pore volume of 0.66 cubic centimeters per gram. It remains stable up to 1173 kelvin and can incorporate aluminum and titanium, enabling superior performance in catalytic cracking and in liquid-phase alkene oxidation of bulky molecules, respectively.

DOI: aec4882

Source: https://www.science.org/doi/10.1126/science.aec4882