INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Yongzhi Xiong,Wei Zhao,Changzhou Chen,Mengyuan Qiu,Yingrui Dong,Yajun Liu,Jianchun Jiang,Mengmeng Fan,Kui Wang
In this study, a novel Co-modified MoS 2 loaded spherical biochar (Co-MoS 2 @BC) derived from renewable biomass was synthesized as an efficient anodic HMFOR electrocatalyst. In the HMFOR process, the Co-MoS 2 @BC required a potential of only 1.426 V for the current density of 100 mA/cm 2 , significantly outperforming that of the MoS 2 loaded on spherical biochar (MoS 2 @BC) and the Co nanoparticles loaded on spherical biochar (Co@BC). Furthermore, the HMF conversion ratio reached 99.6 %, FDCA selectivity was 99.7 %, and Faradaic efficiency was 99.3 %. The Mechanistic studies reveal that the modified-Co on the MoS 2 modulated the electronic structure of Co-MoS 2 @BC, which not only enhanced the interaction between Co-MoS 2 @BC and the electrolyte, thereby facilitating the evolution of the catalysts toward highly active species, but also improved the adsorption of HMF and the H + transfer e - coupling step during the HMFOR process.
研究领域:
材料科学
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电化学
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可再生能源
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DOI
高影响因子
ChemCatChem
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2025
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IF 3.9
Pengwei Deng,Haoran Wu,Huayu Wei,Zixu Yang,Jing Xu,Minghui Zhu
Graphical A modified synthesis method on Cu mesh simplifies and enhances the catalyst preparation process and efficiency at a much lower cost. The synergistic interplay between Co and Cu species is further investigated during the 5-hydroxymethylfurfural oxidation reaction. The Co-doped Cu mesh catalyst's scalability, cost-effectiveness, and robust performance underscore its potential for industrial applications in 5-hydroxymethylfurfural electrooxidation. The growing demand for sustainable alternatives to fossil-derived chemicals has spurred significant interest in biomass valorization, with 5-hydroxymethylfurfural (HMF) emerging as a key platform molecule. In this study, an electrochemical synthesis strategy was employed to synthesize a bimetallic Co-doped Cu mesh catalyst for the HMF oxidation reaction. It exhibited remarkable electrooxidation activity during a 3-h reaction at 1.6 V versus RHE with 83.2% HMF conversion, 99.4% 2,5-furandicarboxylic acid (FDCA) selectivity, and 87.7% Faraday efficiency. X-ray diffraction, in situ surface-enhanced Raman spectroscopy, and X-ray photoelectron spectroscopy revealed that the modified Cu mesh catalyst introduced more Co 3 O 4 species. Additionally, in situ attenuated total reflection surface-enhanced infrared absorption spectroscopy elucidated that Cu species on the Co-doped Cu mesh can adsorb *OH and couple with organic molecules during the reaction process. Cu─Co dual active sites enhance the selective electrochemical oxidation of HMF toward FDCA.
研究领域:
化学工程
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材料科学
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可再生资源
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产品关联
DOI
高影响因子
Molecular Catalysis
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2025
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IF 4.9
Rui Zhu,Fang Gao,Xinglong Li
The development of efficient catalysts for the stepwise oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformyl furan (DFF), 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), 5-Formyl-2-furancarboxylic acid (FFCA) or 2,5-furandicarboxylic acid (FDCA) is critical for biomass valorization. Herein, we reported a bimetallic Co-Mn catalyst anchored on nitrogen-doped porous carbon, which was used for the oxidation of HMF to FDCA, avoiding the use of high temperature and high-pressure oxygen. High FDCA selectivity (>95 %) was achieved through reaction condition optimization. And HMF→DFF→FFCA→FDCA was considered to be the main reaction pathway during the whole oxidation process. Additionally, the chemical environment of the constituent elements of the used catalyst was analyzed by XPS. TEM revealed that the catalyst retained its porous structure and excellent metal dispersion after the reaction. This structural stability was corroborated by sustained >90 % FDCA selectivity over five consecutive reaction cycles. This work established a dual-metal synergy strategy for multi-step oxidation pathways, offering insights into the design of robust catalysts for biomass-derived platform molecule upgrading.
研究领域:
化学催化
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生物质转化
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材料科学
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DOI
高影响因子
ACS Applied Nano Materials
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2022
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IF 6.14
Yiyuan Tao,Shiying Fan,Xinyong Li,Jing Yang,Jingang Wang,Moses O. Tadé,Shaomin Liu
The electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is considered to be the most promising way to achieve green conversion of biomass resources in industrial production. Herein, a series of CuxCo3–xO4 (0 ≤ x ≤ 1) nanofibers are obtained using an electrospinning method, with discovering the role of Cu/Co interactions in modulating the electronic structure of reaction sites and acidic sites for enhancing the intrinsic activity of HMF electro-oxidation (HMFOR). According to the characterizations and theoretical calculations, the reasonable ratio of Cu/Co affects the structure of active sites and the exposure of Lewis adsorption sites in the spinel and thus finally determines an outstanding catalytic activity. An appropriate amount of Cu occupying the tetrahedral sites in the Co-based spinel promotes significantly the electrocatalytic property; specifically, Cu0.5Co2.5O4 shows the best performance of HMF with a selectivity of 93% and Faraday efficiency of 91% for FDCA. This work offers a strategy to design highly active catalysts by adjusting the metal composition and provides an insight into the modulation of multimetal active site structures at the atomic scale.
研究领域:
材料科学
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电化学
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生物质转化
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Hongwei Zhang,Hao Xu,Zhen Zhu,Jinming Huang,Bowen Zhang,Yafei Cheng,Xiaocheng Lin,Bin Wu
The electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) represents a promising pathway for producing biomass-derived value-added chemicals. Nevertheless, the use of extremely expensive ion exchange membranes (IEMs) as separators significantly sacrifices the economic benefit in large-scale applications. Herein, we report a cost-effective non-fluorine cation exchange membrane (CEM) by grafting sulfonic acid (-SO 3 - ) groups onto the aromatic side chain of the polyethersulfone (PES) polymer. By tuning the content of –SO 3 - groups, the physicochemical properties of the resulting CEMs can be easily adjusted. Impressively, the optimal HBS-PES-1.0 CEM with fully grafted –SO 3 - groups can achieve a high HMF conversion of 100 %, FDCA selectivity of 98.0 %, and Faradaic efficiency of 98.3 % when used as the separator for electrocatalytic oxidation of HMF, surpassing that of the commercial Nafion 117 membrane (100 % HMF conversion, 98.1 % FDCA selectivity, and 97.4 % Faradaic efficiency). This study provides a cost-effective and high-performance CEM as a substitute for the expensive commercial membrane, paving the way to large-scale commercial applications of biomass upgrading through the electrolysis process.
研究领域:
化学工程
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可再生资源利用
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
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