Two-dimensional porous carbon derived from pollen with enlarged interlayer distance enhanced electrocatalytic oxidation of n-valeraldehyde to octane  

作　　者：Meichun Qin Chaolong Liu Shouhen Xu Jianguo Tang 

机构地区：[1]Institute of Hybrid Materials,National Center of International Joint Research for Hybrid Materials Technology,National Base of International Sci.and Tech.Cooperation on Hybrid Materials,College of Materials Science and Engineering,Qingdao University,Qingdao,266071,China [2]Department of Pharmaceutics,School of Pharmacy,Qingdao University,Qingdao,266071,China

出　　处：《Nano Research》2024年第5期3455-3461,共7页纳米研究（英文版）

基　　金：supported by Liaoning Technical Innovation Center of Industrial Ecology and Environmental Engineering,Shandong Provincial Natural Science Foundation(No.ZR2021QB048);Qingdao Postdoctoral Application Research Funded Project(Nos.QDBSH20220201046,QDBSH20230202062);Scientific Research Foundation for Youth Scholars from Qingdao University,National Natural Science Foundation of China(Nos.51473082,51878361);State Key Project of International Cooperation Research(No.2023YFE0201100);the Program for Introducing Talents of Discipline to Universities(“111”plan);the double hundred foreign expert project of Shandong Province,and the high-level discipline program of Materials Science of Shandong Province,China.

摘　　要：Electrocatalytic n-valeraldehyde oxidation reaction was an inexpensive and eco-friendly method to control n-valeraldehyde contamination and produce high value-added octane.However,low-cost and readily available electrocatalysts with high current efficiency were urgently needed.Herein,two-dimensional porous carbon derived from pollen with enlarged interlayer distance was built by alkali activation method,applying in electrocatalytic n-valeraldehyde oxidation reaction.The enlarged interlayer distance was verified by X-ray diffraction(XRD)and high-angle annular dark-field scanning transmission electron microscope(HAADF-STEM).Electrocatalytic experiments consequences showed activated biomass derived carbon possessed a higher electrocatalytic activity and octane selectivity than unactivated catalyst.Systematic tests and in situ infrared experiments demonstrated that enlarged interlayer distance was positively correlated with specific surface area of catalysts,large specific surface area provided abundant absorption sites,facilitated the adsorption for n-valeraldehyde,and further promoted the transformation of n-valeraldehyde to octane.This work also provides a new avenue for creating high-performance electrocatalysts in terms of lattice engineering.

关 键 词：biomass derived carbon lattice expansion high specific surface area upgrade of n-valeraldehyde 

分 类 号：O64[理学—物理化学]