Self-assembly of lignin and MOF as a sustainable carbon-based catalyst for selective hydrodeoxygenation of lignin-derived phenols

IF 6.2 2区工程技术 Q2 ENERGY & FUELS

Journal of The Energy Institute Pub Date : 2025-07-29 DOI:10.1016/j.joei.2025.102228

Xiaomeng Kang , Mingqin Xue , Xue Wu , Xiaohui Yang , Minghao Zhou

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引用次数: 0

Abstract

Catalytic upgrading of lignin-derived bio-oil to value-added chemicals was of great significance for the utilization of biomass resources. Hydrodeoxygenation (HDO) was widely regarded as a promising pathway for the upgrading of lignin-derived bio-oil. And the key to this issue was to develop effective and sustainable catalysts. In this study, a series of lignin-derived carbon-based highly effective catalysts were synthesized through a one-step hydrothermal method for the catalytic HDO of lignin and its derivatives. Then, lignin-MOF-derived catalysts (nCo-TPA/C-T) were successfully applied to the catalytic HDO of lignin-derived phenolics. All catalysts were characterized in detail to investigate the relationships between physicochemical properties and their catalytic performances. The results demonstrated that the catalyst 2Co-TPA/C-500 exhibited excellent catalytic activity in the conversion of vanillin (VAN) to 2-methoxy-4-methylphenol (MMP) in mild condition (160 °C, 0.5 MPa N₂, and 1 h), without the presence of external hydrogen. The conversion of VAN was up to nearly 100 %, with a high selectivity of MMP (about 94.5 %). It was confirmed that the excellent catalytic performance was related to types of organic ligands, metal-ligand ratio, catalyst calcination temperature, etc. The catalysts also exhibited good activity for other lignin-derived phenols. This work could offer a useful strategy for the catalytic upgrading of lignin-derived phenolics into value-added chemicals.

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木质素和MOF自组装作为木质素衍生酚选择性加氢脱氧的可持续碳基催化剂

木质素生物油催化升级为高附加值化学品对生物质资源的利用具有重要意义。氢脱氧（HDO）被广泛认为是木质素衍生生物油升级的一个有前途的途径。解决这个问题的关键是开发有效和可持续的催化剂。本研究通过一步水热法合成了一系列木质素衍生的碳基高效催化剂，用于木质素及其衍生物的催化HDO。然后，将木质素- mof衍生催化剂（nCo-TPA/C-T）成功应用于木质素衍生酚类化合物的HDO催化。对催化剂进行了详细的表征，探讨了催化剂的理化性质与催化性能之间的关系。结果表明，催化剂2Co-TPA/C-500在160°C、0.5 MPa N2、1 h的温和条件下，在没有外部氢存在的情况下，对香兰素（VAN）转化为2-甲氧基-4-甲基苯酚（MMP）具有优异的催化活性。VAN的转化率接近100%，而MMP的选择性较高（约94.5%）。结果表明，催化剂的优异催化性能与有机配体的种类、金属配体比、催化剂煅烧温度等因素有关。该催化剂对其他木质素衍生的酚类化合物也表现出良好的催化活性。该研究为木质素衍生的酚类化合物催化升级为增值化学品提供了有用的策略。

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 The Energy Institute 工程技术-能源与燃料

CiteScore

10.60

自引率

5.30%

发文量

166

审稿时长

16 days

期刊介绍： The Journal of the Energy Institute provides peer reviewed coverage of original high quality research on energy, engineering and technology.The coverage is broad and the main areas of interest include: Combustion engineering and associated technologies; process heating; power generation; engines and propulsion; emissions and environmental pollution control; clean coal technologies; carbon abatement technologies Emissions and environmental pollution control; safety and hazards; Clean coal technologies; carbon abatement technologies, including carbon capture and storage, CCS; Petroleum engineering and fuel quality, including storage and transport Alternative energy sources; biomass utilisation and biomass conversion technologies; energy from waste, incineration and recycling Energy conversion, energy recovery and energy efficiency; space heating, fuel cells, heat pumps and cooling systems Energy storage The journal''s coverage reflects changes in energy technology that result from the transition to more efficient energy production and end use together with reduced carbon emission.