Xu Hui, Wang Wenke, Sang Ting, Hao Jingcheng, Zhang Xiaoyu, Li Zhonghao
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, 250100, China.
Zhejiang Carbon Neutral Innovation Institute & Moganshan Institute of ZJUT at Deqing, Zhejiang University of Technology, Hangzhou, 310014, China.
Chem Asian J. 2025 May 15;20(10):e202401753. doi: 10.1002/asia.202401753. Epub 2025 Jan 24.
Converting 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) via electrooxidation is a sustainable approach for generating high-value chemicals from biomass. This study presents Mn-doped Ni(OH) nanosheets as an effective electrocatalyst for HMF electrooxidation. The Mn-doped Ni(OH) nanosheets were synthesized through a microwave-assisted deep eutectic solvent (DES) strategy, followed by an alkaline reflux process. The as synthesized Mn-doped Ni(OH) nanosheets demonstrated remarkable catalytic performance, achieving 100 % HMF conversion, 99.0 % FDCA yield, and 98.8 % Faraday efficiency. Analysis using X-ray photoelectron spectroscopy (XPS), open circuit potential (OCP), and density functional theory (DFT) revealed that Mn doping induced surface charge redistribution and electron hole formation, enhancing HMF adsorption and facilitating its oxidation. This study not only elucidates the role of Mn doping in Ni(OH) catalyst for HMF electrooxidation but also introduces an efficient electrocatalyst for biomass conversion.
通过电氧化将5-羟甲基糠醛（HMF）转化为2,5-呋喃二甲酸（FDCA）是一种从生物质中生成高价值化学品的可持续方法。本研究提出了锰掺杂氢氧化镍（Mn-doped Ni(OH)）纳米片作为HMF电氧化的一种有效电催化剂。锰掺杂氢氧化镍纳米片是通过微波辅助深共熔溶剂（DES）策略合成的，随后进行碱性回流处理。所合成的锰掺杂氢氧化镍纳米片表现出卓越的催化性能，实现了100%的HMF转化率、99.0%的FDCA产率以及98.8%的法拉第效率。利用X射线光电子能谱（XPS）、开路电位（OCP）和密度泛函理论（DFT）进行的分析表明，锰掺杂导致表面电荷重新分布并形成电子空穴，增强了HMF的吸附并促进其氧化。本研究不仅阐明了锰掺杂在用于HMF电氧化的氢氧化镍催化剂中的作用，还引入了一种用于生物质转化的高效电催化剂。
