Flexible, scalable hierarchical graphene foam decorated with nickel layer for highly sensitive enzyme-free glucose sensing

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dc.contributor.authorJi, Xiaodong
dc.contributor.authorJin, Huihui
dc.contributor.authorQian, Wei
dc.contributor.authorWang, Zhe
dc.contributor.authorZhang, Zixin
dc.contributor.authorYang, Zhugen
dc.contributor.authorHe, Daping
dc.date.accessioned2024-09-17T12:12:17Z
dc.date.available2024-09-17T12:12:17Z
dc.date.freetoread2024-09-17
dc.date.issued2024-11-05
dc.date.pubOnline2024-08-08
dc.description.abstractDeveloping functional electrode materials for enzyme-free glucose electrochemical sensing is indispensable and challenging for rapid detection and instant diagnosis. Optimizing the microstructure of electrodes to enhance molecule accessibility, facilitate rapid mass transfer, and enlarge electrochemical active surface area is critical prerequisite for improving the electrochemical analytical performance. Herein, we develop a flexible graphene foam electrode with high conductivity and multilayer channel structure achieving efficient enzyme-free glucose sensor through one-step electrodeposition of nickel. The almost defect-free graphitic structure and layered multi-channel configuration enable the graphene foam to exhibit high conductivity, large specific surface area, and excellent mechanical performance. These properties result in efficient electron transmission and mass transfer, enabling the graphene foam to function as an excellent electrode substrate material in electrochemical sensors. Thus, the detecting electrode (Ni/GF) produced by electrodepositing nickel on graphene foam, demonstrates elevated sensitivity (1719.4 μA mM−1 cm−2), low limit of detection (0.2 μM), exceptional stability, and excellent flexibility for glucose detection. More importantly, the prepared electrode has been successfully applied to artificial sweat and tea, indicating its practical utility. The attractive analytical outcomes suggest that our layered multi-channel graphene foam has the potential to serve as a crucial foundational working electrode for designing efficient electrochemical sensor.
dc.description.journalNameJournal of Alloys and Compounds
dc.description.sponsorshipNational Natural Science Foundation of China, China Postdoctoral Science Foundation, China Aerospace Science and Technology Corporation
dc.identifier.citationJi X, Jin H, Qian W, et al., (2024) Flexible, scalable hierarchical graphene foam decorated with nickel layer for highly sensitive enzyme-free glucose sensing. Journal of Alloys and Compounds, Volume 1004, November 2024, Article number 175902
dc.identifier.eissn1873-4669
dc.identifier.elementsID551732
dc.identifier.issn0925-8388
dc.identifier.paperNo175902
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2024.175902
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22943
dc.identifier.volumeNo1004
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier BV
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGraphene foam
dc.subjectNickel
dc.subjectEnzyme-free
dc.subjectGlucose electrochemical sensing
dc.subject40 Engineering
dc.subject4016 Materials Engineering
dc.subjectMaterials
dc.subject4016 Materials engineering
dc.subject5104 Condensed matter physics
dc.titleFlexible, scalable hierarchical graphene foam decorated with nickel layer for highly sensitive enzyme-free glucose sensing
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-08-06

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