物理化学学报2022，Vol.38Issue(12)：218-225,8.DOI:10.3866/PKU.WHXB202201050
PtRuAgCoNi高熵合金纳米颗粒高效电催化氧化5-羟甲基糠醛
PtRuAgCoNi High-Entropy Alloy Nanoparticles for High-Efficiency Electrocatalytic Oxidation of 5-Hydroxymethylfurfural
摘要
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.关键词
高熵合金/表面活性剂/溶剂热合成/电催化氧化/5-羟甲基糠醛/2,5-呋喃二甲酸Key words
High entropy alloy/Surfactant/Solvothermal synthesis/Electrocatalytic oxidation/5-Hydroxymethylfurfural/2,5-Furandicarboxylic acid分类
化学化工引用本文复制引用
杨艳,王天富,刘晰,陈立桅,何博文,马华隆,杨森,任州宏,秦天,卢发贵,任力闻,张熠霄..PtRuAgCoNi高熵合金纳米颗粒高效电催化氧化5-羟甲基糠醛[J].物理化学学报,2022,38(12):218-225,8.基金项目
The project was supported by the National Key R&D Plan(2021YFA1500300,2021YFA1500303,2021YFB3800300)and the National Natural Science Foundation of China(21991153,21991150,22072090).国家重点研发计划(2021YFA1500300,2021YFA1500303,2021YFB3800300)和国家自然科学基金(21991153,21991150,22072090)资助项目 （2021YFA1500300,2021YFA1500303,2021YFB3800300）
