Multifunctional Prussian blue/graphene ink for flexible biosensors and supercapacitors

Ma, Jie; Cui, Zewei; Du, Yuchen; Xu, Qianlong; Deng, Qinghua; Zhu, Nan

doi:10.1016/j.electacta.2021.138496

Cited by 24 publications

(9 citation statements)

References 55 publications

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“…153 For instance, Ma et al developed multifunctional PB/rGO ink to fabricate screenprinted flexible SC electrodes. 9 The ink was prepared by dispersing PB and rGO in a mixture of ethanol and isopropyl alcohol solution. The screen-printed PB/rGO electrodes had excellent electrochemical performance with high specific capacitance of 105 F g −1 at 0.5 A g −1 current density.…”

Section: Graphene-based Composite Inkmentioning

confidence: 99%

“…As a result, introducing PB with rGO can be an effective way to facilitate the electron transfer . For instance, Ma et al developed multifunctional PB/rGO ink to fabricate screen-printed flexible SC electrodes . The ink was prepared by dispersing PB and rGO in a mixture of ethanol and isopropyl alcohol solution.…”

Section: Graphene-based Supercapacitorsmentioning

confidence: 99%

“…Various carbon-based nanomaterials, including activated carbon, carbon black, graphene, graphene oxide (GO), reduced graphene oxide (rGO), and CNT , have been preferred as a choice of the electrode material for SC devices due to their outstanding physical and electrochemical characteristics. − Graphene is a 2D structure made of a single layer of sp 2 -hybridized carbon atoms packed into a honeycomb structure with a thickness of 0.335 nm and a carbon–carbon bond of length 0.142 nm (Figure c) . It has a remarkably high specific surface area (2600 m 2 g –1 ) and a theoretical capacitance of nearly 550 F g –1 .…”

Section: Introductionmentioning

confidence: 99%

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Graphene-Based Inks for Flexible Supercapacitor Electrodes: A Review

Nargatti,

Pathak,

Ahankari

et al. 2023

ACS Appl. Electron. Mater.

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In the world of consumer electronics, flexible and wearable electronic devices have witnessed a remarkable transformation, and flexible supercapacitors (SCs) hold tremendous potential as a power source for these electronic devices. Printing technologies, such as inkjet and screen printing, have emerged as cost-effective and scalable manufacturing techniques for the fabrication of flexible SC electrodes. As a key element of printing technology, ink must have the right balance of conductivity and rheological properties to fabricate high-performance flexible electrodes. Graphene stands out as a promising active pigment for conductive ink due to its remarkable characteristics such as high surface area, excellent electrical conductivity, and mechanical properties. Recently, extensive research has been conducted on the development of graphene-based inks for their effective utilization in SC printing methods. This review summarizes these advances and systematically connects the graphene ink formulation with its rheological properties and correlates finally with the electrochemical performance of inkjet-and screen-printed SC electrodes.

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Section: Graphene-based Composite Inkmentioning

confidence: 99%

Section: Graphene-based Supercapacitorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Graphene-Based Inks for Flexible Supercapacitor Electrodes: A Review

Nargatti,

Pathak,

Ahankari

et al. 2023

ACS Appl. Electron. Mater.

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“…Because PB/PBAs can be used for a representative biosensing process with excellent redox and electrochemical behavior, PB/PBAs as a kind of low-cost ideal electrocatalysts for wearable sensors have rapidly grown. The research strategies have mainly focused on the exploitation of PB active inks for direct or indirect analysis − and preparation of sensing layers by using 3D skeleton structure of PB/PBAs. , For example, our groups creatively reported a wearable biomolecule smartsensor based on highly electrocatalytic Berlin green nanoparticles (BGNPs) as active printing inks prepared in one step . As shown in Figure a, typical redox peaks corresponding to PB–BG circulation of BG ink-based sensor can be observed, demonstrating high electrocatalysis activity.…”

Section: Wearable Sensors Of Pb/pbasmentioning

confidence: 99%

Recent Advances of Prussian Blue-Based Wearable Biosensors for Healthcare

et al. 2021

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“…The carbon paste electrode can be easily prepared by simply mixing carbon powder with a carrier such as oil, wax, or resist. In addition, carbon paste electrodes can be assigned various functions by mixing catalytic and conductive materials such as reduced graphene oxide (RGO), PB, and other inorganic materials. − Many electrochemical sensors, including biosensors based on carbon paste electrodes, have been reported because of these features. The BPE array fabrication method proposed in this study mainly uses epoxy-based carbon paste (ECP) and oil-based carbon paste (OCP), which can be easily prepared by mixing carbon material with epoxy or paraffin oil in a mortar.…”

mentioning

confidence: 99%

Fabrication of High-Density Vertical Closed Bipolar Electrode Arrays by Carbon Paste Filling Method for Two-Dimensional Chemical Imaging

2022

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In this study, a carbon paste filling method was proposed as a simple strategy for fabricating high-density bipolar electrode (BPE) arrays for bipolar electrochemical microscopy (BEM). High spatiotemporal resolution imaging was achieved using the fabricated BPE array. BEM, which is an emerging microscopic system in recent years, achieves label-free and high spatiotemporal resolution imaging of molecular distributions using high-density BPE arrays and electrochemiluminescence (ECL) signals. We devised a simple method to fabricate a BPE array by filling a porous plate with carbon paste and succeeded in fabricating a high-density BPE array (15 μm pitch). After a detailed observation of the surface of the BPE array using a scanning electron microscope, the basic electrochemical and ECL emission characteristics were evaluated using potassium ferricyanide solution as a sample solution. Moreover, inflow imaging of the sample molecules was conducted to evaluate the imaging ability of the prepared BPE array. In addition, Prussian Blue containing carbon ink was applied to the sample solution side of the BPE array to provide catalytic activity to hydrogen peroxide, and the quantification and inflow imaging of hydrogen peroxide by ECL signals was achieved. This simple fabrication method of the BPE array can accelerate the research and development of BEM. Furthermore, hydrogen peroxide imaging by BEM is an important milestone for achieving bioimaging with high spatiotemporal resolution such as biomolecule imaging using enzymes.

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Multifunctional Prussian blue/graphene ink for flexible biosensors and supercapacitors

Cited by 24 publications

References 55 publications

Graphene-Based Inks for Flexible Supercapacitor Electrodes: A Review

Graphene-Based Inks for Flexible Supercapacitor Electrodes: A Review

Recent Advances of Prussian Blue-Based Wearable Biosensors for Healthcare

Fabrication of High-Density Vertical Closed Bipolar Electrode Arrays by Carbon Paste Filling Method for Two-Dimensional Chemical Imaging

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