Molybdenum Carbide-Promoted Cobalt as an Efficient Catalyst for Selective Hydrogenation,Industrial & Engineering Chemistry Research

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Molybdenum Carbide-Promoted Cobalt as an Efficient Catalyst for Selective Hydrogenation
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-07-19 , DOI: 10.1021/acs.iecr.0c02324
Kangkai Liu ₁ , Yueling Cao ₁ , Shaowei Yang ₁ , Chen Wu ₁ , Zhuorui Zhang ₁ , Qiuyu Zhang ₁ , Hepeng Zhang ₁

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Developing heterogeneous catalysts for hydrogenation under mild conditions is industrially significant, but there still remain some challenges in the preparation of inexpensive and highly active catalysts. Herein, we present Co-Mo_xC catalysts prepared by a one-pot pyrolysis method for which excellent catalytic performance toward selective hydrogenation is achieved. The highest turnover frequency (TOF) of nitrobenzene hydrogenation reached up to 105.3 h^–1 with a selectivity of higher than 99% at 60 °C. As evidenced by our experiment and analysis, the electronic structure of cobalt can be affected by the in situ-formed molybdenum carbide, which led to an improved dispersion via the interaction between Co and Mo_xC as well as advanced catalytic performance. These results could provide some potential for the design of efficient hydrogenation catalysts for further industrial applications.

中文翻译：

碳化钼促进的钴作为选择性加氢的有效催化剂

在温和条件下开发用于氢化的非均相催化剂在工业上具有重要意义，但是在制备廉价且高活性的催化剂方面仍然存在一些挑战。本文中，我们介绍了通过一锅法热解法制备的Co-Mo _x C催化剂，该催化剂可实现优异的选择性加氢催化性能。硝基苯加氢的最高周转频率（TOF）高达105.3 h ^–1，在60°C时的选择性高于99％。正如我们的实验和分析所证明的那样，钴的电子结构会受到原位形成的碳化钼的影响，而碳化钼通过Co和Mo _x之间的相互作用而改善了分散性。C以及先进的催化性能。这些结果可以为进一步工业应用设计有效的氢化催化剂提供一些潜力。

更新日期：2020-08-12

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