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Precise Polishing and Electrochemical Applications of Quartz Nanopipette-Based Carbon Nanoelectrodes

文献类型：期刊论文

作者Gao, Han1,2; Xu, Jianan1; Liu, Chen1,2; Wang, Fei1; Sun, Haotian1; Wang, Qian3; Zhou, Min1,2
刊名ANALYTICAL CHEMISTRY
出版日期2022-10-03
页码7
ISSN号0003-2700
DOI10.1021/acs.analchem.2c02296
英文摘要Quartz nanopipette-based carbon nanoelectrodes (CNEs) have attracted extensive attention in nanoscale electrochemistry due to their simple and efficient fabrication, chemically inert materials, flexible size (down to a few nanometers), and ultrathin insulating encapsulation. However, these pristine CNEs usually have significantly irregular morphology on the surface, which greatly limits the applications where inlaid nanodisks are urgently needed. To address this critical issue, we have developed a new precise polishing strategy using paraffin coating protection (i.e., avoiding breakage of quartz materials) and real-time monitoring with a high impedance meter (i.e., indicating electrode exposure) to produce flat carbon nanodisk electrodes. The surface flatness of polished CNEs has been confirmed by a combination of scanning electron microscopy, fast-scan cyclic voltammetry, and scanning electrochemical microscopy. As compared to the expensive focused ion beam processing, this strategy is competitive in terms of the low cost and availability of the equipment and enables the preparation of polished CNEs with sufficiently small size. The flattened CNEs have been exemplified for grafting molecular catalysts to achieve the durable catalysis of reactive molecules or for immobilizing single-particle electrocatalysts to measure the intrinsic activity under sufficient mass-transfer rates.
WOS关键词NANOSCALE ELECTROCHEMISTRY ; ELECTRODES ; ELECTROCATALYSIS ; FABRICATION ; MICROSCOPY
资助项目Instrument Developing Project of the Chinese Academy of Sciences ; Natural Science Foundation of Jilin Province ; National Natural Science Foundation of China ; [YJKYYQ20210003] ; [20210101402JC] ; [22178360]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000866255600001
资助机构Instrument Developing Project of the Chinese Academy of Sciences ; Natural Science Foundation of Jilin Province ; National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/54968]  
专题中国科学院过程工程研究所
通讯作者Wang, Qian; Zhou, Min
作者单位1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,Inst Proc Engn,Innov, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Han,Xu, Jianan,Liu, Chen,et al. Precise Polishing and Electrochemical Applications of Quartz Nanopipette-Based Carbon Nanoelectrodes[J]. ANALYTICAL CHEMISTRY,2022:7.
APA Gao, Han.,Xu, Jianan.,Liu, Chen.,Wang, Fei.,Sun, Haotian.,...&Zhou, Min.(2022).Precise Polishing and Electrochemical Applications of Quartz Nanopipette-Based Carbon Nanoelectrodes.ANALYTICAL CHEMISTRY,7.
MLA Gao, Han,et al."Precise Polishing and Electrochemical Applications of Quartz Nanopipette-Based Carbon Nanoelectrodes".ANALYTICAL CHEMISTRY (2022):7.

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来源：过程工程研究所

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