Organic interfacial engineering of gold nanowires for selective glycerol electrooxidation

Zhe Wang ¹Qingling Hong ¹Boqiang Miao ¹Tianjiao Wang ¹Yu Ding ¹Pujun Jin ¹Pei Chen ¹Yu Chen¹

扫码查看

作者信息

1. Key Laboratory of Macromolecular Science of Shaanxi Province,Key Laboratory of Applied Surface and Colloid Chemistry(Ministry of Education),Shaanxi Key Laboratory for Advanced Energy Devices,School of Materials Science and Engineering,Shaanxi Normal University,Xi'an 710062,China
折叠

Abstract

The selective electrochemical conversion of glycerol into value-added products is a green and sus-tainable strategy for the biomass utilization.In this work,Au nanowires(Au-NW)modified with polyethyleneimine(PEI)molecule(Au-NW@PEI)is obtained by an up-bottom post-modification approach.Physical characterization,molecular dynamics simulation and density functional theory demonstrate that the loose-packed PEI monolayer firmly and uniformly distribute on the Au-NW surface due to the strong Au-N interaction.Electrochemical experiments and product analysis display that PEI modification signif-icantly enhance the electro-activity of Au-NW for the glycerol electro-oxidation reaction(GEOR)due to the electronic effect.Meanwhile,the steric hindrance and electrostatic effect of PEI layer make the op-timizing adsorption of intermediates possible.Therefore,the selectivity of C3 product glyceric acid over Au-NW@PEI is increased by nearly 20％.The work thus indicates that the rational design of metal-organic interface can effectively elevate the electro-activity and selectivity of Au nanostructures,which may have wide application in biomass development.

Key words

Glycerol electrooxidation reaction/Organic interface engineering/Gold-based nanomaterials/Electrocatalysis/Selectivity

引用本文复制引用

基金项目

国家自然科学基金(22202130)

中国博士后科学基金(2022M710088)

Science and Technology Innovation Team of Shaanxi Province(2023-CX-TD-27)

Science and Technology Innovation Team of Shaanxi Province(2022TD-35)

中央高校基本科研业务费专项(GK202202001)

中央高校基本科研业务费专项(GK202101005)

Open Funds of the State Key Laboratory of Electroanalytical Chemistry(SKLEAC202207)

高等学校学科创新引智计划(111计划)(B14041)

出版年

2024

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCDCSCD

影响因子：0.771

ISSN：1001-8417

参考文献量56

段落导航