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Three-Dimensional Ti₃C₂T_x MXene-Prussian Blue Hybrid Microsupercapacitors by Water Lift-Off Lithography.

ABSTRACT: The construction of electrochemical energy-storage devices by scalable thin-film microfabrication methods with high energy and power density is urgently needed for many emerging applications. Herein, we demonstrate an in-plane hybrid microsupercapacitor with a high areal energy density by employing a battery-type CuFe-Prussian blue analogue (CuFe-PBA) as the positive electrode and pseudocapacitive titanium carbide MXene (Ti₃C₂T_x) as the negative electrode. A three-dimensional lignin-derived laser-induced graphene electrode was prepared as the substrate by laser exposure combined with an environmentally friendly water lift-off lithography. The designed hybrid device achieved enhanced electrochemical performance thanks to the ideal match of the two types of high-rate performance materials in proton-based electrolytes and the numerous electrochemically active sites. In particular, the device delivers a high areal capacitance of 198 mF cm^-2, a wide potential window (1.6 V), an ultrahigh rate performance (75.8 mF cm^-2 retained even at a practical/high current density of 100 mA cm^-2), and a competitive energy density of 70.5 and 27.6 μWh cm^-2 at the power densities 0.74 and 52 mW cm^-2, respectively. These results show that the Ti₃C₂T_x/CuFe-PBA hybrid microsupercapacitors are promising energy storage devices in miniaturized portable and wireless applications.

SUBMITTER: Lei Y

PROVIDER: S-EPMC8867912 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature

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Three-Dimensional Ti3C2Tx MXene-Prussian Blue Hybrid Microsupercapacitors by Water Lift-Off Lithography.

Lei Yongjiu Y Zhao Wenli W Zhu Yunpei Y Buttner Ulrich U Dong Xiaochen X Alshareef Husam N HN

ACS nano 20220128 2

The construction of electrochemical energy-storage devices by scalable thin-film microfabrication methods with high energy and power density is urgently needed for many emerging applications. Herein, we demonstrate an in-plane hybrid microsupercapacitor with a high areal energy density by employing a battery-type CuFe-Prussian blue analogue (CuFe-PBA) as the positive electrode and pseudocapacitive titanium carbide MXene (Ti3C2Tx) as the negative electrode. ...[more]

PMID: 35089009

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Project description:BackgroundTwo-dimensional ultrathin Ti3C2 (MXene) nanosheets have been extensively explored for various biomedical applications. However, safety issues and the effects of Ti3C2 on human health remain poorly understood.ResultsTo explore the influence on foetal or offspring after exposure to Ti3C2 nanosheets, we established a mouse model exposed to different doses of Ti3C2 nanosheets during early pregnancy in this study. We found that Ti3C2 nanosheets had negligible effect on the reproductive ability of maternal mice, including average pregnancy days, number of new-borns, and neonatal weight, etc. Unexpectedly, abnormal neurobehavior and pathological changes in the cerebral hippocampus and cortex in adult offspring were observed following Ti3C2 nanosheet treatment. In further studies, it was found that Ti3C2 exposure led to developmental and functional defects in the placenta, including reduced area of labyrinth, disordered secretion of placental hormones, and metabolic function derailment. The long-chain unsaturated fatty acids were significantly higher in the placenta after Ti3C2 exposure, especially docosahexaenoic acid (DHA) and linoleic acid. The metabolic pathway analysis showed that biosynthesis of unsaturated fatty acids was upregulated while linoleic acid metabolism was downregulated.ConclusionsThese developmental and functional defects, particularly metabolic function derailment in placenta may be the cause for the neuropathology in the offspring. This is the first report about the effects of Ti3C2 nanosheet exposure on pregnancy and offspring. The data provides a better understanding of Ti3C2 nanosheets safety. It is suggested that future studies should pay more attention to the long-term effects of nanomaterials exposure, including the health of offspring in adulthood, rather than only focus on short-term effects, such as pregnancy outcomes. Metabolomics could provide clues for finding the prevention targets of the biological negative effect of Ti3C2 nanosheets.

Dataset Information

Three-Dimensional Ti₃C₂T_x MXene-Prussian Blue Hybrid Microsupercapacitors by Water Lift-Off Lithography.

Publications

Three-Dimensional Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> MXene-Prussian Blue Hybrid Microsupercapacitors by Water Lift-Off Lithography.

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