Development of flexible nicotine sensors by inkjet printing of heteroatom-doped 3D V2C MXene nanoflower/holey carbon nanotube-based inks

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2025-01-01 DOI:10.1016/j.flatc.2025.100811

Havva Nur Gurbuz , Kenan Can Tok , Mehmet Gumustas , Esra Maltas Cagil , Hasan Huseyin Ipekci , Aytekin Uzunoglu

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Abstract

Two-dimensional (2D) metal carbides, nitrides, and carbo nitrides (MXenes) are considered potent alternatives to carbon-based 2D materials for inkjet printing. On the other hand, the low oxidation resistance and vulnerability to restacking issues make developing novel MXene-based materials with 3D structures essential. Herein, we developed highly stable aqueous inks consisting of Nitrogen and Sulphur-codoped (V₂C MXene nanoflower (Nf)/holey multiwalled carbon nanotube (h-MWCNT)) hybrids. The V₂C MXene Nf architectures with an average particle size of 284.6 ± 78.8 nm were synthesized using a facile ultrasonic treatment followed by a freeze-drying process without any template. The 3D V₂C MXene architectures were mixed with holey MWCNTs to enhance the oxidation stability of MXene. Furthermore, creating holes in the MWCNT structure enhanced the printability of the inks and boosted the electrochemical performance of the printed sensors significantly compared to pristine MWCNT-based hybrids. The inks were inkjet printed on flexible substrates to fabricate electrochemical sensors. The electrocatalytic activity of the printed sensors was assessed against nicotine. The results indicated that our novel printed sensor design performed much better than already reported sensors in terms of linear range (10–500 µM) and LOD (0.058 µM).

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)