Highly efficient selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over MOF-derived Co-Ni bimetallic catalysts: The effects of Co-Ni alloy and adsorption configuration

IF 6.5 1区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Catalysis Pub Date : 2024-10-28 DOI:10.1016/j.jcat.2024.115824

Zonghao Zhang , Ruizhuo Liu , Lei Huang , Pingle Liu

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Abstract

The targeted conversion of furfural (FA) over inexpensive catalyst is a critical and challenging project. Herein, CoNi alloy catalysts (xCoyNi/C) were prepared through one-step pyrolysis of metal–organic frameworks and used in furfural (FA) hydrogenation to tetrahydrofurfuryl alcohol (TFOL). The formation of CoNi alloy leads to a reconfiguration of the electronic structure on the metal surface, which affects the adsorption of functional groups on FA and furfuryl alcohol (FOL). In situ FT-IR analysis and DFT calculations verify that bimetallic CoNi alloy catalyst exhibits more suitable reactants adsorption and hydrogenation rate in comparison with the monometallic Co and monometallic Ni catalysts. Meanwhile, CoNi alloy significantly reduces the activation barrier from FOL to TFOL. Hence, the 1Co1Ni/C catalyst gives the highest TFOL yield of > 99 %. This study provides a simple strategy for the preparation of alloy catalysts for tuning product selectivity and presents practical potential for upgrading biomass-derived platform molecules.

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在 MOF 衍生 Co-Ni 双金属催化剂上高效选择性加氢将糠醛转化为四氢糠醇：Co-Ni 合金和吸附构型的影响

在廉价催化剂上实现糠醛（FA）的定向转化是一项重要而具有挑战性的项目。本文通过一步热解金属有机框架制备了 CoNi 合金催化剂（xCoyNi/C），并将其用于糠醛（FA）加氢转化为四氢糠醇（TFOL）。CoNi 合金的形成导致了金属表面电子结构的重构，从而影响了官能团对糠醛和糠醇（FOL）的吸附。原位傅立叶变换红外分析和 DFT 计算证实，与单金属 Co 和单金属 Ni 催化剂相比，双金属 CoNi 合金催化剂具有更合适的反应物吸附性和加氢速率。同时，CoNi 合金大大降低了从 FOL 到 TFOL 的活化势垒。因此，1Co1Ni/C 催化剂的 TFOL 收率最高，达到 99%。这项研究为制备合金催化剂以调整产物选择性提供了一种简单的策略，并为生物质衍生平台分子的升级提供了实用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Catalysis 工程技术-工程：化工

CiteScore

12.30

自引率

5.50%

发文量

447

审稿时长

31 days

期刊介绍： The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.