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

doi:10.1016/j.microc.2023.109696

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	High-redox-capacity solid contact based on ferrocenyl self-assembled monolayer functionalized macroporous gold for an all-solid-state carbonate-selective electrode
	Mu, Shuangqing 1,3; Yin, Tanji 3; Luan, Feng 1; Qin, Wei 2,3,4
刊名	MICROCHEMICAL JOURNAL
	2024-02-01
卷号	197 页码:8
关键词	Solid-contact ion-selective electrode Ferrocenyl self-assembled monolayer Macroporous gold Carbonate
ISSN号	0026-265X
DOI	10.1016/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
内容类型	期刊论文
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
通讯作者	Yin, Tanji; Qin, Wei
作者单位	1.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 3.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 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, 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.