在水滑石衍生的pt基催化剂上，糠醛在温和条件下选择性加氢制糠醇

IF 21.1 1区化学 Q1 CHEMISTRY, PHYSICAL

Applied Catalysis B: Environmental Pub Date : 2022-07-15 DOI:10.1016/j.apcatb.2022.121260

Ge Gao , Javier Remón , Zhicheng Jiang , Lu Yao , Changwei Hu

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引用次数: 40

摘要

生物质衍生的糠醛(FF)通过选择性加氢生产糠醇(FFA)是具有挑战性的，因为不同的不饱和基团。本文合成了一种新型水滑石衍生的pt基催化剂，用于催化FF在水中选择性加氢成FFA。在303 K和1.5 MPa H2条件下，2 h内FF与>的转化率为99.9%;在TOF为204.6 h−1,Ea为12.8 kJmol−1的条件下，对FFA的选择性为99%。这些结果是由于水滑石的二维层状双氢氧化物结构，有助于Pt物种的高分散和有效还原，以及FF的醛基在催化剂上的选择性吸附，以及所产生的FFA的快速解吸。随着时间的推移，这保证了选择性和稳定的氢化，保证了多达四个循环。

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Selective hydrogenation of furfural to furfuryl alcohol in water under mild conditions over a hydrotalcite-derived Pt-based catalyst

The production of furfuryl alcohol (FFA) from biomass-derived furfural (FF) via selective hydrogenation is challenging due to the diverse unsaturated groups. Herein, a novel hydrotalcite-derived Pt-based catalyst was synthesized to catalyze the selective hydrogenation of FF to FFA in water. Within 2 h at 303 K and 1.5 MPa H₂, 99.9% conversion of FF with > 99% selectivity to FFA was obtained while the TOF being 204.6 h⁻¹ and the E_a being 12.8 kJmol⁻¹. These results were accounted for by the 2D layered double hydroxides structure of hydrotalcite, which contributed to the high dispersion and effective reduction of Pt species, and the selective adsorption of the aldehyde group of FF on the catalyst, combined with the rapid desorption of the FFA produced. This guaranteed selective and stable hydrogenation over time, with up to four cycles ensured.

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来源期刊

Applied Catalysis B: Environmental 环境科学-工程：化工

CiteScore

38.60

自引率

6.30%

发文量

1117

审稿时长

24 days

期刊介绍： Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including: 1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources. 2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes. 3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts. 4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells. 5.Catalytic reactions that convert wastes into useful products. 6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts. 7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems. 8.New catalytic combustion technologies and catalysts. 9.New catalytic non-enzymatic transformations of biomass components. The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.