高效生物质电氧化用掺杂镍氧化铜纳米棒。

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemistry - A European Journal Pub Date : 2025-09-12 DOI:10.1002/chem.202502192

Xinru Yu, Yue Zhao, Kaiyue Yan, Yiming Zhao, Min Ma, Ziqi Tian, Ruixiang Ge

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引用次数: 0

摘要

铜基催化剂被认为是生物质电氧化的一种很有前途的材料。然而，开发有效的策略来提高铜基催化剂的内在活性仍然具有挑战性，并且很少报道。本文合成了一种镍掺杂氧化铜催化剂（Ni-CuOx），用于5-羟甲基糠醛（HMF）电氧化制2,5-呋喃二羧酸（FDCA）。Ni-CuOx在1.4 V下的电流密度为199.7 mA cm-2，是纯CuOx的2.8倍，超过了目前报道的大多数cu基催化剂。此外，Ni-CuOx还具有较高的FDCA产率（90.1%）和法拉第效率（98.5%）。物理表征和电化学分析表明，Ni掺杂优化了Cu位点的电子结构，促进了HMF的吸附，有助于提高电催化活性。这项工作为生物质电氧化铜基催化剂的合理设计提供了见解。

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Nickel-Doped Copper Oxide Nanorods for Efficient Biomass Electro-Oxidation.

Cu-based catalysts are regarded as promising materials for the electro-oxidation of biomass. However, developing effective strategies to improve the intrinsic activity of Cu-based catalysts is still challenging and rarely reported. Herein, we synthesized a nickel-doped copper oxide catalyst (Ni-CuO_x) for 5-hydroxymethylfurfural (HMF) electro-oxidation to 2,5-furandicarboxylic acid (FDCA). The Ni-CuO_x exhibited a large current density of 199.7 mA cm^-2 at 1.4 V, which is 2.8-fold higher than that of pure CuO_x, and exceeds most of the reported Cu-based catalysts. Moreover, the Ni-CuO_x also showed high FDCA yield (90.1%) and Faradaic efficiency (98.5%). Physical characterizations and electrochemical analyses demonstrated that Ni doping optimizes the electronic structure of Cu sites, and promoting the adsorption of HMF, contributing to enhanced electrocatalytic activity. This work provides insights into the rational design of copper-based catalysts for biomass electro-oxidation.

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来源期刊

Chemistry - A European Journal 化学-化学综合

CiteScore

7.90

自引率

4.70%

发文量

1808

审稿时长

1.8 months

期刊介绍： Chemistry—A European Journal is a truly international journal with top quality contributions (2018 ISI Impact Factor: 5.16). It publishes a wide range of outstanding Reviews, Minireviews, Concepts, Full Papers, and Communications from all areas of chemistry and related fields. Based in Europe Chemistry—A European Journal provides an excellent platform for increasing the visibility of European chemistry as well as for featuring the best research from authors from around the world. All manuscripts are peer-reviewed, and electronic processing ensures accurate reproduction of text and data, plus short publication times. The Concepts section provides nonspecialist readers with a useful conceptual guide to unfamiliar areas and experts with new angles on familiar problems. Chemistry—A European Journal is published on behalf of ChemPubSoc Europe, a group of 16 national chemical societies from within Europe, and supported by the Asian Chemical Editorial Societies. The ChemPubSoc Europe family comprises: Angewandte Chemie, Chemistry—A European Journal, European Journal of Organic Chemistry, European Journal of Inorganic Chemistry, ChemPhysChem, ChemBioChem, ChemMedChem, ChemCatChem, ChemSusChem, ChemPlusChem, ChemElectroChem, and ChemistryOpen.