Prussian blue-modified laser-induced graphene platforms for detection of hydrogen peroxide

Matias, Tiago A.; Faria, Lucas Vinícius de; Rocha, Raquel G.; Silva, Murillo N. T.; Nossol, Edson; Richter, Eduardo M.; Muñoz, Rodrigo A.A.

doi:10.1007/s00604-022-05295-5

Cited by 26 publications

(23 citation statements)

References 39 publications

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“…The LOD reported for carbon nanotube-modified laser-induced graphene was 0.5 mM . Prussian blue-modified laser-induced graphene exhibited a LOD of 0.26 μmol L –1 . Further, in our study, we were able to obtain a correlation between the defect density and electron transfer kinetics in LIRGO films.…”

Section: Resultssupporting

confidence: 57%

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Excimer Laser Patterned Holey Graphene Oxide Films for Nonenzymatic Electrochemical Sensing

Joshi

Shukla

Gupta

et al. 2022

ACS Appl. Mater. Interfaces

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The existence of point defects, holes, and corrugations (macroscopic defects) induces high catalytic potential in graphene and its derivatives. We report a systematic approach for microscopic and macroscopic defect density optimization in excimer laser-induced reduced graphene oxide by varying the laser energy density and pulse number to achieve a record detection limit of 7.15 nM for peroxide sensing. A quantitative estimation of point defect densities was obtained using Raman spectroscopy and confirmed with electrochemical sensing measurements. Laser annealing (LA) at 0.6 J cm–2 led to the formation of highly reduced graphene oxide (GO) by liquid-phase regrowth of molten carbon with the presence of dangling bonds, making it catalytically active. Hall-effect measurements yielded a mobility of ∼200 cm2 V–1 s–1. An additional increase in the number of pulses at 0.6 J cm–2 resulted in deoxygenation through the solid-state route, leading to the formation of holey graphene structure. The average hole size showed a hierarchical increase, with the number of pulses characterized with multiple microscopy techniques, including scanning electron microscopy, atomic force microscopy, and transmission electron microscopy. The exposure of edge sites due to high hole density after 10 pulses supported the formation of proximal diffusion layers, which led to facile mass transfer and improvement in the detection limit from 25.4 mM to 7.15 nM for peroxide sensing. However, LA at 1 J cm–2 with 1 pulse resulted in a high melt lifetime of molten carbon and the formation of GO characterized by a high resistivity of 3 × 10–2 Ω-cm, which was not ideal for sensing applications. The rapid thermal annealing technique using a batch furnace to generate holey graphene results in structure with uneven hole sizes. However, holey graphene formation using the LA technique is scalable with better control over hole size and density. This study will pave the path for cost-efficient and high-performance holey graphene sensors for advanced sensing applications.

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Section: Resultssupporting

confidence: 57%

“…54 Prussian blue-modified laser-induced graphene exhibited a LOD of 0.26 μmol L −1 . 55 Further, in our study, we were able to obtain a correlation between the defect density and electron transfer kinetics in LIRGO films. Until now, very few studies have reported this relation for graphene films.…”

Section: Significance Of the Resultsmentioning

confidence: 59%

Excimer Laser Patterned Holey Graphene Oxide Films for Nonenzymatic Electrochemical Sensing

Joshi

Shukla

Gupta

et al. 2022

ACS Appl. Mater. Interfaces

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“…Amperometry measurements were performed by setting the modified working electrode to different concentrations of hydrazine; a hydrodynamic study was carried out in the presence of 50 μmol L –1 of hydrazine, varying the potentials (−0.10, −0.05, 0.00, 0.05, 0.10, 0.15, 0.20, 0.25, and 0.35 V). The limit of quantification (LOQ) and the limit of detection (LOD) were estimated using the following equations: LOQ = 10 σ s LOD = 3 σ s where s is the slope of the calibration curve and σ is the standard deviation of the linear coefficient.…”

Section: Methodsmentioning

confidence: 99%

Facile Gram-Scale Synthesis of NiO Nanoflowers for Highly Selective and Sensitive Electrocatalytic Detection of Hydrazine

et al. 2023

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The design and development of efficient and electrocatalytic sensitive nickel oxide nanomaterials have attracted attention as they are considered cost-effective, stable, and abundant electrocatalytic sensors. However, although innumerable electrocatalysts have been reported, their large-scale production with the same activity and sensitivity remains challenging. In this study, we report a simple protocol for the gram-scale synthesis of uniform NiO nanoflowers (approximately 1.75 g) via a hydrothermal method for highly selective and sensitive electrocatalytic detection of hydrazine. The resultant material was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. For the production of the modified electrode, NiO nanoflowers were dispersed in Nafion and drop-cast onto the surface of a glassy carbon electrode (NiO NF/GCE). By cyclic voltammetry, it was possible to observe the excellent performance of the modified electrode toward hydrazine oxidation in alkaline media, providing an oxidation overpotential of only +0.08 V vs Ag/AgCl. In these conditions, the peak current response increased linearly with hydrazine concentration ranging from 0.99 to 98.13 μmol L–1. The electrocatalytic sensor showed a high sensitivity value of 0.10866 μA L μmol–1. The limits of detection and quantification were 0.026 and 0.0898 μmol L–1, respectively. Considering these results, NiO nanoflowers can be regarded as promising surfaces for the electrochemical determination of hydrazine, providing interesting features to explore in the electrocatalytic sensor field.

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“…In addition, LIG modified with Prussian blue (iron hexacyanoferrate, PB) was demonstrated to detect H 2 O 2 with high selectivity. [ 158 ] By combining the high conductivity of graphene sheets with the electrocatalytic activity of PB, the LIG‐PB provides an increase in active sites, which contributes to the satisfactory LOD of 0.26 µmol L −1 and the resistance to charge transfer values decreasing from 395 to 31.4 Ω. Moreover, glucose is the main component of human energy, and various NP‐doped LIG sensors have been studied for the rapid and immediate detection.…”

Section: Applicationsmentioning

confidence: 99%

Doping of Laser‐Induced Graphene and Its Applications

Zhang

Liu

et al. 2023

Adv Materials Technologies

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Laser‐induced graphene (LIG) has attracted extensive attention owing to its facile preparation of graphene and direct engraving patterns for devices. Various applications are demonstrated such as sensors, supercapacitors, electrocatalysis, batteries, antimicrobial, oil and water separation, solar cells, and heaters. In recent years, doping has been employed as a significant strategy to modulate the properties of LIG and thereby improve the performance of LIG devices. Due to the patternable manufacture, controllable morphologies, and the synergistic effect of doped atoms and graphene, the doped LIG devices exhibit a high sensitivity of sensing, pseudocapacitance performance, and biological antibacterial. This paper reviews the latest novel research progress of heteroatom and nanoparticles doped LIG in synthesis, properties, and applications. The fabrications of LIG and typical doping approaches are presented. Special attention is paid to two doping processes of LIG: the one‐step laser irradiation method and the two‐step laser modification consisting of deposition, drop‐casting, and duplicated laser pyrolysis. Doped LIG applications with improved performance are mainly highlighted. Taking advantage of doped LIG's properties and device performances will provide excellent opportunities for developing artificial intelligence, data storage, energy, health, and environmental applications.

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Prussian blue-modified laser-induced graphene platforms for detection of hydrogen peroxide

Cited by 26 publications

References 39 publications

Excimer Laser Patterned Holey Graphene Oxide Films for Nonenzymatic Electrochemical Sensing

Excimer Laser Patterned Holey Graphene Oxide Films for Nonenzymatic Electrochemical Sensing

Facile Gram-Scale Synthesis of NiO Nanoflowers for Highly Selective and Sensitive Electrocatalytic Detection of Hydrazine

Doping of Laser‐Induced Graphene and Its Applications

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