Abstract

In the present study, a typical metal-organic framework has been employed for preparation of a novel active Fischer–Tropsch Co–Ni catalyst. Co–Ni catalyst was prepared by glycine–MOF combustion method and was heated in a tube furnace (2°C min^–1) under air at 750°C for 6 h. Scanning electron micrograph of metal-organic framework shows regularly cubic shaped crystals and they were being deformed into a low density, loose and porous material after it was calcined in the tube furnace. BET surface area and pore volume are 276 m²/g and 0.31 cm³/g respectively. This active catalyst showed selectivity for long-chain hydrocarbons \(\left( {{\text{C}}_{5}^{ + }} \right)\) of ~52% and for short-chain hydrocarbons (C₂–C₄) 30%. The relatively high activity (TOF of 2.08 s^–1 at 340°C) was ascribed to its high porous structure and large pore size of the catalyst which facilitated the diffusion of hydrocarbons. The unique features of this catalyst, including structural tailor ability such as high surface area, porosity, homogeneity and stability enable it to be an active Fischer–Tropsch catalyst.

中文翻译：

---

金属有机骨架衍生的新型活性费-托合成钴镍催化剂的制备

摘要

在本研究中，典型的金属有机骨架已被用于制备新型的活性费-托合成钴镍催化剂。Co-Ni催化剂是通过甘氨酸-MOF燃烧方法制备的，并在管式炉中（2°C min ^–1）在空气中于750°C加热6小时。金属-有机骨架的扫描电子显微镜照片显示规则的立方晶体，在管式炉中煅烧后，它们正在变形为低密度，疏松和多孔的材料。BET表面积和孔体积分别为276m ² / g和0.31cm ³ / g。该活性催化剂对长链烃\（\ left（{{\ text {C}} _​​ {5} ^ {+}} \ right）\）和短链烃（C ₂ -C₄）30％。较高的活性（在340°C下的TOF为2.08 s ^–1）归因于其高孔隙结构和催化剂的大孔径，有利于碳氢化合物的扩散。这种催化剂的独特特征，包括结构适应能力，例如高表面积，孔隙率，均质性和稳定性，使其成为一种活性的费-托催化剂。