长链烷氧基修饰酞菁镍电催化还原CO_(2)的研究  

Study on electrocatalytic reduction of CO_(2) by long chain alkoxy modified nickel phthalocyanine

作　　者：张心爱 张博[1,2] 刘雪玲 高凌 李劲超[1,2] 陈良[1,2] 张亚萍[1,2] ZHANG Xinai;ZHANG Bo;LIU Xueling;GAO Ling;LI Jinchao;CHEN Liang;ZHANG Yaping(School of Materials and Chemistry,Southwest University of Science and Technology,Sichuang,Mianyang 621010,China;Engineering Research Center of Biomass Materials(Ministry of Education),Southwest University of Science and Technology,Sichuang,Mianyang 621010,China)

机构地区：[1]西南科技大学材料与化学学院,四川绵阳621010 [2]西南科技大学生物质材料教育部工程研究中心,四川绵阳621010

出　　处：《化学工业与工程》2024年第6期50-60,共11页Chemical Industry and Engineering

基　　金：国家自然科学基金(U20A20125)

摘　　要：开发和设计低成本、高效、低过电位的电催化CO_(2)还原(ECR)催化剂对于缓解温室效应、将CO_(2)变废为宝至关重要。利用不同长链烷氧基对酞菁镍分子进行修饰,并将其固载于多壁碳纳米管(MWCNTs),成功制备了酞菁镍基分子分散催化剂(NiPc/CNT)。利用红外光谱(IR)、拉曼光谱(Raman)、紫外-可见吸收光谱(UV-vis)、X射线光电子能谱(XPS)、扫描电镜(SEM)和透射电镜(TEM)等手段对其结构进行表征,证实了NiPc/CNT的成功合成。实验结果表明,制备的己氧基酞菁镍基催化剂(NiPc-6/CNT)在-0.70~-0.95 V范围内展现出优异的ECR催化活性和选择性,CO的法拉第效率(FE_(CO))接近于100%,从而为高效ECR催化剂的分子设计提供了新的思路。Developing and designing inexpensive,efficient,and low overpotential electrocatalytic CO_(2)reduction(ECR)catalysts is crucial for alleviating greenhouse effect and transforming carbon dioxide into treasure.In this study,the nickel phthalocyanine based molecular dispersion catalysts(NiPc/CNT)were fabricated through modification by different long-chain alkoxy groups and immobilized onto multiwalled carbon nanotubes(MWCNTs).The successful synthesis of NiPc/CNT was confirmed through comprehensive structural characterization,including infrared spectroscopy(IR),Raman spectroscopy(Raman),UV-Vis spectroscopy(UV-Vis),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM)and transmission electron microscopy(TEM).Experimental results demonstrate that the NiPc-6/CNT exhibits high catalytic activity and excellent selectivity for ECR within the potential range of-0.70 V to-0.95 V,and the Faraday efficiency for CO production(FE_(CO))approaches 100%.This study provides a novel molecular design strategy for the development of efficient electrochemical catalysts for ECR.

关 键 词：电催化 CO_(2)还原 酞菁镍 分子分散催化剂 

分 类 号：TQ21[化学工程—有机化工]