Synthesis of carbon nanospheres for the development of inkjet-printed resistive layers and sensors

Vie, Rémy; Drahi, Etienne; Baudino, Olivier; Blayac, S.; Berthon‐Fabry, Sandrine

doi:10.1088/2058-8585/1/1/015003

Cited by 9 publications

(3 citation statements)

References 33 publications

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“…The control spectrum shown in Figure 8 was obtained using a 1 M ethanol solution in contact with PtFe/C without any potential imposing. In this spectrum, the D and G bands of Vulcan carbon used as support are observed at 1338 and 1621 cm −1 respectively [50].…”

Section: Surface Enhanced Raman Spectroscopy (Sers) Analysismentioning

confidence: 79%

In Situ Surface-Enhanced Raman Spectroscopy Study of the Electrocatalytic Effect of PtFe/C Nanocatalyst on Ethanol Electro-Oxidation in Alkaline Medium

et al. 2017

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Currently, the ethanol electro-oxidation reaction has attracted considerable attention in fuel cells because of new green ethanol synthetic methods based on biomass processes that have emerged. In this study, PtFe/C and Pt/C nanoparticles were synthesized by a chemical reduction method and tested in the ethanol electro-oxidation reaction. Furthermore, the electrocatalytic effect of the PtFe bimetallic catalyst was analyzed by in situ surface-enhanced Raman spectroscopy (SERS) coupled to an electrochemical cell. X-ray diffractograms showed typical face-centered cubic structures with crystallite sizes of 3.31 and 3.94 for Pt/C and PtFe/C, respectively. TEM micrographs revealed nanoparticle sizes of 2 ± 0.4 nm and 3 ± 0.6 nm for Pt/C and PtFe/C respectively. PtFe/C exhibited a Pt 90 Fe 10 composition by both X-ray fluorescence and energy-dispersive X-ray spectroscopy. A better electrocatalytic activity as function of concentration was obtained through the incorporation of a small amount of Fe into the Pt lattice and the presence of Fe 2+ /Fe 3+ (observed by X-ray photoelectron spectroscopy). According to SERS experiments, the presence of these iron species promotes the chemisorption of ethanol, the formation of formic acid as main product and renewal of the catalytic sites, resulting in current densities that were at least three fold higher than the values obtained for the Pt/C nanocatalyst.

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Section: Surface Enhanced Raman Spectroscopy (Sers) Analysismentioning

confidence: 79%

In Situ Surface-Enhanced Raman Spectroscopy Study of the Electrocatalytic Effect of PtFe/C Nanocatalyst on Ethanol Electro-Oxidation in Alkaline Medium

et al. 2017

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“…The integration of mechanically rigid SMDs hinders the mechanical flexibility of printed electronics and complicates the fabrication process. Printed resistors are typically fabricated using resistive carbon inks [16]. A wide range of resistances can be achieved by tuning the conductor/filler concentration [17] or by varying the geometry of the printed resistor (i.e.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of RC filters from a single printed Zn layer by reactive inkjet printing

Radwan,

Sui,

Zorman

2024

Flex. Print. Electron.

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This paper presents the development of planar zinc (Zn) resistor-capacitor (RC) filters from a single printed layer that are both printed and treated at room temperature. The fabrication process involves screen printing the resistor, capacitor and interconnects in a single patterned layer on kraft paper substrates using a Zn microparticle ink. In order to form a distinct resistor and capacitor in the patterned structure, reactive inkjet printing was performed to selectively dispense acetic acid on the RC filter pattern to achieve regions with highly contrasting resistance. The required high degree of spatial contrast was achieved using the positional control of the inkjet printer combined with the number of print passes and drop spacing used to dispense the acetic acid droplets. X-ray diffraction and scanning electron microscopy showed the crystal structure and grain size of Zn microparticles remained unchanged with increasing acetic acid exposure while the prominence of cold-welding increased with increasing exposure. Zn-based RC filters sharing a common set of dimensions but with a wide range of corner frequencies were successfully fabricated using this process. For a fixed filter geometry, the corner frequencies could be tuned from ~7 kHz to ~1 MHz as the number of print passes used to form the resistor increased in a stepwise manner. To the best of our knowledge, this is the first room temperature printing process to produce side-by-side resistors and conductors from the same printed layer and the first printing process of any type to produce RC filters with such a wide range of corner frequencies.

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“…Carbon black nanoparticles (CB-NPs) are nowadays utilized in numerous applications and purposes from scientific to industrial levels, such as in reinforced fillers in polymers, 1) pigment in printing ink, 2) electrodes in batteries and fuel cells, [3][4][5] and biosensors, 6) owing to their unique physical, chemical, and electrical properties. The CB-NPs are a particulate form of carbon that has a nearly spherical shape with less crystallinity than graphite, usually amorphous and=or turbostratic.…”

Section: Introductionmentioning

confidence: 99%

In vitro cytotoxicity of carbon black nanoparticles synthesized from solution plasma on human lung fibroblast cells

Panomsuwan

Chokradjaroen

Rujiravanit

et al. 2017

Jpn. J. Appl. Phys.

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Carbon black nanoparticles (CB-NPs) have been synthesized from liquid benzene by a solution plasma method at room temperature and atmospheric pressure. The morphological observation by scanning electron microscopy revealed the agglomeration of aggregated fine particles. The synthesized CB-NPs were predominantly amorphous as confirmed by X-ray diffraction. The in vitro cytotoxicity of CB-NPs on the human lung fibroblast (MRC-5) cell line was assessed by the 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and systematically compared with those of two types of commercial carbon blacks (i.e., Vulcan XC-72 and Ketjenblack EC-600JD). Cell viabilities were studied at different concentrations of 32.5, 65, 125, and 250 µg/mL. It was found that the CB-NPs derived from solution plasma exhibited a lower cytotoxicity on the MRC-5 cells than the other two comparative carbon blacks. The viability of MRC-5 cells exposed to CB-NPs remained higher than 90% even at a high concentration of 250 µg/mL. This result preliminarily confirmed the biosafety and potential use of CB-NPs in the field of biological applications.

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Synthesis of carbon nanospheres for the development of inkjet-printed resistive layers and sensors

Cited by 9 publications

References 33 publications

In Situ Surface-Enhanced Raman Spectroscopy Study of the Electrocatalytic Effect of PtFe/C Nanocatalyst on Ethanol Electro-Oxidation in Alkaline Medium

In Situ Surface-Enhanced Raman Spectroscopy Study of the Electrocatalytic Effect of PtFe/C Nanocatalyst on Ethanol Electro-Oxidation in Alkaline Medium

Fabrication of RC filters from a single printed Zn layer by reactive inkjet printing

In vitro cytotoxicity of carbon black nanoparticles synthesized from solution plasma on human lung fibroblast cells

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