Selective Upgrading of Biomass-Derived Carbonyl Compounds by Nickel-Base Catalyst in Isopropanol

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-08-18 DOI:10.1007/s10562-025-05144-z

Zhou-Xin Peng, Yu-chen Wu, Shi-Yun Xiao, Hua-Lan Zhou, Sheng-Kang Wang, Xue-Song Wang

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Abstract

Low-cost nickel catalyst (Ni@C/C) derived from a metal organic framework (MOF) was synthetized for the hydrodeoxygenation (HDO) of biomass-derived vanillin. Unlike expensive noble-metal catalysts, Ni@C/C achieves full conversion of vanillin to 2-methoxy-4-methylphenol (MMP)—a key biofuel precursor—under mild conditions (180 °C, 2 MPa H₂). Ni@C/C exhibited excellent catalytic activity for the HDO of vanillin in isopropanol. Moreover, the main product of vanillyl alcohol (VA) under N₂ was 4-(isopropoxymethyl)-2-methoxyphenol (iPMP). The possible mechanism of vanillin by using Ni@C/C catalyst was that Vanillin was hydrogenated to generate VA, and VA was hydrogenated on Ni@C/C to generate MMP by two HDO paths: (1) VA was directly HDO to generate MMP; (2) VA was hydrogenated with isopropanol to generate iPMP by dehydration, then iPMP was hydrogenated to produce MMP. The Ni-based catalyst is relatively cheap and the preparation method is facile, green, and easy to scale up, thus achieving a low-cost transformation of biomass to bio-oils and chemicals.

Graphical Abstract

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镍基催化剂在异丙醇中选择性升级生物质衍生羰基化合物

合成了金属有机骨架（MOF）低成本镍催化剂（Ni@C/C），用于生物质香兰素的加氢脱氧（HDO）。与昂贵的贵金属催化剂不同，Ni@C/C在温和条件下（180°C, 2 MPa H 2）实现了香兰素到2-甲氧基-4-甲基苯酚（MMP）的完全转化，这是一种关键的生物燃料前体。Ni@C/C对异丙醇中香兰素的HDO具有优异的催化活性。在N2条件下，香草醇（VA）的主要产物是4-（异丙氧基甲基）-2-甲氧基苯酚（iPMP）。使用Ni@C/C催化剂反应香兰素的可能机理是香兰素氢化生成VA， VA在Ni@C/C催化剂上通过两种HDO途径加氢生成MMP:(1) VA直接HDO生成MMP；(2) VA与异丙醇脱水加氢生成iPMP， iPMP加氢生成MMP。镍基催化剂价格相对便宜，制备方法简便、绿色、易于规模化，从而实现了生物质向生物油和生物化学品的低成本转化。图形抽象

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.