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High-redox-capacity solid contact based on ferrocenyl self-assembled monolayer functionalized macroporous gold for an all-solid-state carbonate-selective electrode

文献类型：期刊论文

作者Mu, Shuangqing1,3; Yin, Tanji1; Luan, Feng3; Qin, Wei1,2,4
刊名MICROCHEMICAL JOURNAL
出版日期2024-02-01
卷号197页码:8
ISSN号0026-265X
关键词Solid-contact ion-selective electrode Ferrocenyl self-assembled monolayer Macroporous gold Carbonate
DOI10.1016/j.microc.2023.109696
通讯作者Yin, Tanji(tjyin@yic.ac.cn) ; Qin, Wei(wqin@yic.ac.cn)
英文摘要Solid-contact ion-selective electrodes (ISEs) are a promising tool for direct detection of CO32- activity/concen-tration in seawater. Herein, a stable solid-contact CO32--ISE was fabricated based on ferrocenyl self-assembled monolayer (SAM) functionalized macroporous gold (m-PG). Instead of the commonly used planar electrode, the m-PG film, prepared by using an electrochemical self-templating method involving the gold electrodeposition and hydrogen bubbling generation, is used as the conductive substrate. The redox capacity of the ferrocenyl SAM on the m-PG film is much larger than that on the planar Au electrode, due to the high surface area and good conductivity of m-PG. The solid-contact CO32--ISE based on ferrocenyl SAM modified m-PG shows a Nernstian potential response in the activity range from 2.6 x 10-5 to 5.3 x 10-4 M with a slope of 28.3 +/- 0.4 mV/dec and a detection limit of 1.1 x 10-5 M. The proposed electrode also exhibits a good electrode-to-electrode reproduc-ibility with a standard variation of the standard potential (E0) of 1.5 mV (n = 7), an improved potential stability and a long lifetime up to at least 120 days. The strategy for electrode substrate transformation from planar gold substrate to porous gold substrate provides an alternative way to improve the redox capacities of ferrocenyl SAMs for preparing the stable and reliable solid-contact ISEs.
WOS关键词POLY(VINYL CHLORIDE) ; INTERMEDIATE PHASE ; ION ; MEMBRANE ; SEAWATER ; MICROSENSOR ; SENSORS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001128534200001
资助机构National Natural Science Foundation of China ; Key Project of the Natural Science Foundation of Shandong Province ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences ; Taishan Scholar Program of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/33141]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Yin, Tanji; Qin, Wei
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
3.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Mu, Shuangqing,Yin, Tanji,Luan, Feng,et al. High-redox-capacity solid contact based on ferrocenyl self-assembled monolayer functionalized macroporous gold for an all-solid-state carbonate-selective electrode[J]. MICROCHEMICAL JOURNAL,2024,197:8.
APA Mu, Shuangqing,Yin, Tanji,Luan, Feng,&Qin, Wei.(2024).High-redox-capacity solid contact based on ferrocenyl self-assembled monolayer functionalized macroporous gold for an all-solid-state carbonate-selective electrode.MICROCHEMICAL JOURNAL,197,8.
MLA Mu, Shuangqing,et al."High-redox-capacity solid contact based on ferrocenyl self-assembled monolayer functionalized macroporous gold for an all-solid-state carbonate-selective electrode".MICROCHEMICAL JOURNAL 197(2024):8.

入库方式： OAI收割

来源：烟台海岸带研究所

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