Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (1): 20220631.doi: 10.7503/cjcu20220631

• Article • Previous Articles     Next Articles

Facile Synthesis of Metal/Carbon Electrocatalysts via Adsorption for Efficient Electrocatalytic Oxidation of HMF

LIU Zhichen, ZHANG Hongwei(), ZHANG Bowen, CHEN Peng, YUAN Pei()   

  1. College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China
  • Received:2022-09-22 Online:2023-01-10 Published:2022-11-28
  • Contact: ZHANG Hongwei, YUAN Pei E-mail:zhanghw@fzu.edu.cn;yuanpei@fzu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22078064);the Natural Science Foundation of Fujian Province, China(2021J02009)

Abstract:

A simple adsorption method has been developed to prepare highly efficient electrocatalysts(Ni x Fe1‒x /HC) for 5-hydroxymethylfurfural(HMF) oxidation using mesoporous hollow carbon spheres(HC) as the carrier. X-ray diffraction(XRD), field emission scanning electron microscopy(SEM), X-ray photoelectron spectroscopy(XPS) and other characterizations were applied to characterize the phases, structural morphologies and electronic structures of the obtained Ni x Fe1‒x /HC catalysts. Linear sweep voltammetry, chronopotentiometry were used to evaluated the electrocatalytic activities of HMF oxidation of Ni x Fe1‒x /HC. The results show that the catalytic activity of Ni x Fe1‒x /HC catalysts increases first and then decreases with the increase of introduction amount of Fe. Among them, Ni0.7Fe0.3/HC show the best catalytic activity. The conversion of HMF is as high as 100%, the selectivity of 2,5-furandicarboxylic acid(FDCA) is 90.5%, and the Faradaic efficiency is 90.2%. Even after 10 cycles, the catalytic activity of Ni0.7Fe0.3/HC was only slightly reduced, exhibiting excellent catalytic stability.

Key words: HMF oxidation, Mesoporous hollow carbon, Ni-based catalyst, Electrocatalytic conversion

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