Acta Phys. -Chim. Sin. ›› 2022, Vol. 38 ›› Issue (12): 2201050.doi: 10.3866/PKU.WHXB202201050

Special Issue: Special Issue in Honor of the 120’s Anniversary of Academician Ying Fu

• ARTICLE • Previous Articles     Next Articles

PtRuAgCoNi High-Entropy Alloy Nanoparticles for High-Efficiency Electrocatalytic Oxidation of 5-Hydroxymethylfurfural

Yan Yang1, Bowen He1, Hualong Ma1, Sen Yang2, Zhouhong Ren1, Tian Qin1, Fagui Lu1, Liwen Ren2, Yixiao Zhang1, Tianfu Wang2,*(), Xi Liu1,*(), Liwei Chen1,*()   

  1. 1 School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
    2 School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2022-01-29 Accepted:2022-03-15 Published:2022-03-21
  • Contact: Tianfu Wang,Xi Liu,Liwei Chen E-mail:tfwang@sjtu.edu.cn;liuxi@sjtu.edu.cn;lwchen2018@sjtu.edu.cn
  • About author:Email: lwchen2018@sjtu.edu.cn (L.C.)
    Email: liuxi@sjtu.edu.cn (X.L.)
    Email: tfwang@sjtu.edu.cn (T.W.)
  • Supported by:
    the National Key R & D Plan(2021YFA1500300);the National Key R & D Plan(2021YFA1500303);the National Key R & D Plan(2021YFB3800300);the National Natural Science Foundation of China(21991153);the National Natural Science Foundation of China(21991150);the National Natural Science Foundation of China(22072090)

Abstract:

Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) is considered one of the most environment friendly, economical, and efficient methods for synthesizing 2,5-furandicarboxylic acid (FDCA), which is a promising bio-based precursor of polyethylene 2,5-furandicarboxylate. In this study, we synthesized PtRuAgCoNi high-entropy alloy nanoparticles, with an average diameter of approximately 9 nm, using a solvothermal method. The synthesized nanoparticles displayed a core-shell microstructure, in which Co, Ru, Ag, and Ni were distributed over the entire core-shell microstructure of each nanoparticle, while Pt was mainly concentrated in the shell structure. A two-step method, including small-molecule substitution and low-temperature calcination, was used to remove the surfactant from the synthesized nanoparticles without changing the structure and composition of the nanoparticles. After being deposited on a carbon support, the high-entropy alloy nanoparticles, with or without surfactants, exhibited better catalytic performance in the electrocatalytic oxidation of HMF to FDCA than the commercial Pt/C catalyst. The removal of surfactants after calcination at 185 ℃ can further improve electrocatalytic performance, suggesting promising application prospects of high-entropy alloy nanoparticles in electrocatalysis and green chemistry.

Key words: High entropy alloy, Surfactant, Solvothermal synthesis, Electrocatalytic oxidation, 5-Hydroxymethylfurfural, 2,5-Furandicarboxylic acid

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