Engineering crystal plane of NiCo_(2)O_(4)to regulate oxygen vacancies and acid sites for alkali-free oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid  

作　　者：Hengli Qian keyuan Zhang Yongchuo He Qidong Hou Chao Xie Ruite Lai Guanjie Yu Tianliang Xia Xinyu Bai Haijiao Xie Meiting Ju 

机构地区：[1]National&Local Joint Engineering Research Center on Biomass Resource Utilization,College of Environmental Science and Engineering,Nankai University,Tianjin,300350,China [2]Research Team for Environmental Functional Materials,Department of Environmental Technology,The Institute of Seawater Desalination and Multipurpose Utilization,Ministry of Natural Resources of the People's Republic of China,Tianjin,300192,China [3]Hangzhou Yanqu Information Technology Co.,Ltd,Hangzhou City,Zhejiang Province,310003,China

出　　处：《Green Energy & Environment》2025年第4期756-765,共10页绿色能源与环境(英文版)

基　　金：supported by the Swedish Energy Agency(P47500-1);the National Key R&D Program of China(2020YFA0710200);the National Natural Science Foundation of China(22378401 and U22A20416);the financial support from STINT(CH2019-8287);financial support from the European Union and Swedish Energy Agency(P2020-90066).

摘　　要：The catalytic oxidation of HMF involves a cascading reaction with multiple intermediate products,making it crucial to enhance the oriented adsorption capacity of specific functional groups for accelerating the entire process.To achieve the efficient selective oxidation of HMF to FDCA,a series of NiCo_(2)O_(4)catalysts with different morphologies,such as flaky,echinoids,pompon and corolla,were prepared and characterized by XRD,SEM,TEM,BET,XPS,and FTIR.Among the four catalysts,flaky NiCo_(2)O_(4)exhibited the most excellent catalytic activity and stability,with a FDCA yield of 60.1%within 12 h at 80℃without alkali participation.The excellent performance of flaky NiCo_(2)O_(4)catalyst is attributed to the oxygen vacancies and acid sites generated by the exposed(400)facets.The oxygen vacancies and acid sites on the catalyst surface can precisely adsorb-CHO and-CH_(2)-OH of HMF,respectively,and this synergistic effect promotes the efficient production of FDCA.This work is of great significance for fundamentally study the effect of micro-topography or crystal-plane reaction properties on surfaces.

关 键 词：5-HYDROXYMETHYLFURFURAL 2 5-furandicarboxylic acid NiCo2O4 Catalytic oxidation Crystal plane 

分 类 号：O643.36[理学—物理化学]