高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (1): 20220631.doi: 10.7503/cjcu20220631

• 研究论文 • 上一篇    下一篇

吸附法制备金属/碳催化剂用于5-羟基甲基糠醛高效电催化氧化的研究

刘至辰, 张宏伟(), 张博稳, 陈鹏, 袁珮()   

  1. 福州大学石油化工学院, 福州 350108
  • 收稿日期:2022-09-22 出版日期:2023-01-10 发布日期:2022-11-28
  • 通讯作者: 张宏伟,袁珮 E-mail:zhanghw@fzu.edu.cn;yuanpei@fzu.edu.cn
  • 基金资助:
    国家自然科学基金(22078064);福建省自然科学基金(2021J02009)

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)

摘要:

以介孔中空碳球(HC)为载体, 通过简单的吸附法吸附Ni2+/Fe3+金属离子, 获得了在碱性电解液中具有高效5-羟基甲基糠醛(HMF)电催化氧化性能的Ni x Fe1‒x /HC催化剂. 通过X射线衍射(XRD)、 场发射扫描电子显微镜(SEM)和X射线光电子能谱(XPS)等手段对Ni x Fe1‒x /HC的物相、 形貌结构及电子结构进行了表征, 并通过线性扫描伏安和计时电位等方法测试了Ni x Fe1‒x /HC的HMF电催化氧化性能.结果显示, Ni x Fe1‒x /HC材料催化HMF氧化的活性随Fe引入量的增加先升高后降低, Ni0.7Fe0.3/HC拥有最优的催化活性, HMF的转化率为100%, 2,5-呋喃二甲酸(FDCA)的选择性为90.5%, 法拉第效率为90.2%, 经历10次循环后, 催化活性仅略微降低, 表现出优良的催化稳定性.

关键词: 5-羟基甲基糠醛氧化, 介孔中空碳球, 镍基催化剂, 电催化转化

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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