文献类型：期刊文献

英文题名：A Highly Efficient Nickel Phosphate Electrocatalyst for the Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid

作者：Xu, Xuli[1];Song, Xiaojie[1];Liu, Xiaohui[1];Wang, Haifeng[2,3,4];Hu, Yongfeng[5];Xia, Jie[2,3,4];Chen, Jiacheng[6];Shakouri, Mohsen[5];Guo, Yong[1];Wang, Yanqin[1]

机构：[1]East China Univ Sci Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Res Inst Ind Catalysis,Joint Int Res Lab Precis C, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem & Mol Engn, Ctr Computat Chem, Shanghai 200237, Peoples R China;[5]Canadian Light Source Inc, Saskatoon, SK S7N 2V3, Canada;[6]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：10

期号：17

起止页码：5538

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20221912082689);WOS:【SCI-EXPANDED(收录号:WOS:000823205800001)】；

基金：The research was sponsored financially by the National Natural Science Foundation of China (nos. 21872050, 22072042, 21832002, and 21403065) and the Science and Technology Commission of Shanghai Municipality (no. 18ZR1408500). P K-edge XAS measurements were done at SXRMB Beamline at the Canadian Light Source (CLS) in Saskatchewan, Canada. The Canadian Light Source (CLS) is a national research facility of the University of Saskatchewan, which is supported by the Canada Foundation for Innovation (CFI), the Natural Sciences and Engineering Research Council (NSERC), the National Research Council (NRC), the Canadian Institutes of Health Research (CIHR), the Government of Saskatchewan, and the University of Saskatchewan.

语种：英文

外文关键词：nickel-based catalyst; nickel phosphate; electrocatalytic oxidation; 5-hydroxymethylfurfural; 2,5-furandicarboxylic acid; the role of phosphate

摘要：The electrocatalytic oxidation of 5-hydroxymethyl-furfural (HMF), one of biomass-derived platform compounds, is an attractive route to produce 2,5-furandicarboxylic acid (FDCA), an important monomer of bio-based polyesters. Here, we successfully synthesized a highly efficient and stable nickel phosphate (Ni-3 (PO4)(2)) electrocatalyst by a simple hydrothermal method for the electrocatalytic oxidation of HMF to FDCA, in which the yield of FDCA reached 94.2% and the Faraday efficiency was 93.5% in 0.1 M KOH. Compared with nickel hydroxide (Ni (OH)(2)), the introduction of phosphorus enhanced the charge transfer ability of Ni-based catalysts by EIS and Tafel slope analysis. At the same time, the Ni2+ species in Ni-3(PO4)(2) was more likely to be oxidized to active nickel species than that in Ni (OH) 2 from XPS and in situ Raman results. Moreover, in situ attenuated total reflection-surface enhanced infrared absorption spectroscopy (ATR-SEIRAS) over Ni-3(PO4)(2) were carried out to study the changes of nickel phosphate during the electrocatalytic oxidation of HMF. According to ATR-SEIRAS, XPS, and Raman results, it can be concluded that Ni2+ species under applied potential in KOH solution was transformed to the high-valence nickel species/Ni3+ species with P-OH and the ring-shaped P-O group. In addition, the phosphorus group was also involved in the electrocatalytic oxidation of HMF. Based on these evidences, a complete electrocatalytic oxidation process of HMF to FDCA on Ni-3(PO4)(2) was proposed.