Inkjet-Printed Reduced Graphene Oxide (rGO) Films For Electrocatalytic Applications

Martínez-Flores, Rocío; Canto-Aguilar, Esdras J.; Rodríguez‐Gattorno, Geonel; Oskam, Gerko; Meneses-Rodrı́guez, David; Ruiz‐Gómez, Miguel A.

doi:10.1149/2.0381905jes

Cited by 17 publications

(5 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Controlling the flake size distribution is crucial to avoid nozzle clogging and complications during printing. Additionally, the dispersant-to-graphene ratio, which determines the surface coverage of graphene flakes by dispersants, is critical for optimizing charge transport in graphene films [ 7 ], and flake size distribution [ 62 ].…”

Section: Resultsmentioning

confidence: 99%

Graphene Inks Printed by Aerosol Jet for Sensing Applications: The Role of Dispersant on the Inks’ Formulation and Performance

Al Shboul,

Ketabi,

Skaf

et al. 2023

Sensors

View full text Add to dashboard Cite

This study presents graphene inks produced through the liquid-phase exfoliation of graphene flakes in water using optimized concentrations of dispersants (gelatin, triton X-100, and tween-20). The study explores and compares the effectiveness of the three different dispersants in creating stable and conductive inks. These inks can be printed onto polyethylene terephthalate (PET) substrates using an aerosol jet printer. The investigation aims to identify the most suitable dispersant to formulate a high-quality graphene ink for potential applications in printed electronics, particularly in developing chemiresistive sensors for IoT applications. Our findings indicate that triton X-100 is the most effective dispersant for formulating graphene ink (GTr), which demonstrated electrical conductivity (4.5 S·cm−1), a high nanofiller concentration of graphene flakes (12.2%) with a size smaller than 200 nm (<200 nm), a low dispersant-to-graphene ratio (5%), good quality as measured by Raman spectroscopy (ID/IG ≈ 0.27), and good wettability (θ ≈ 42°) over PET. The GTr’s ecological benefits, combined with its excellent printability and good conductivity, make it an ideal candidate for manufacturing chemiresistive sensors that can be used for Internet of Things (IoT) healthcare and environmental applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Graphene Inks Printed by Aerosol Jet for Sensing Applications: The Role of Dispersant on the Inks’ Formulation and Performance

Al Shboul,

Ketabi,

Skaf

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…Different studies on IJP with graphene-based inks have been carried out, mainly for applications in electronic, bioelectronic, and energy storage [ 185 , 186 , 187 , 188 , 189 , 190 ]. For example, Li et al reported an easy IJP method for the fabrication of micro-supercapacitors (MSCs) based on graphene and printed on various substrates.…”

Section: Additive Manufacturing For Graphene-based Materialsmentioning

confidence: 99%

Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

et al. 2020

View full text Add to dashboard Cite

In the present work, the state of the art of the most common additive manufacturing (AM) technologies used for the manufacturing of complex shape structures of graphene-based ceramic nanocomposites, ceramic and graphene-based parts is explained. A brief overview of the AM processes for ceramic, which are grouped by the type of feedstock used in each technology, is presented. The main technical factors that affect the quality of the final product were reviewed. The AM processes used for 3D printing of graphene-based materials are described in more detail; moreover, some studies in a wide range of applications related to these AM techniques are cited. Furthermore, different feedstock formulations and their corresponding rheological behavior were explained. Additionally, the most important works about the fabrication of composites using graphene-based ceramic pastes by Direct Ink Writing (DIW) are disclosed in detail and illustrated with representative examples. Various examples of the most relevant approaches for the manufacturing of graphene-based ceramic nanocomposites by DIW are provided.

show abstract

“…In addition, graphene-based electrodes are readily fabricated using graphene inks and printed onto substrates. [94][95][96] This approach has been employed to produce graphene-based cathodes. 82,85 In a recent study, a graphene ink-coated cathode was shown to give rise to a near doubling of the amount of H 2 O 2 generated.…”

Section: Graphene-based Composites and Electrodesmentioning

confidence: 99%

Review—2D Graphene and Graphene-Like Materials and Their Promising Applications in the Generation of Hydrogen Peroxide

Tian

Breslin

2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

The in situ formation of hydrogen peroxide, H2O2, is an attractive alternative to the current energy demanding and complex anthraquinone synthetic process. In this paper 2D materials, including graphene, graphitic carbon nitride (g–C3N4) and hexagonal boron nitride (hBN), are reviewed as electrocatalysts and photocatalysts for the selective two electron reduction of oxygen to give H2O2. Following an introduction to the complex oxygen reduction reaction, graphene is considered, followed by an account of g–C3N4 and hBN in generating H2O2. It is readily evident that graphene combined with carbon-based supports, doped with N, B or BN, decorated with single atom catalysts and prepared as aerogels can be employed to enhance the production of H2O2. Although the mechanism of this two electron oxygen reduction reaction remains unclear, mildly oxidised graphene is more effective and this is fortunate as fully reduced graphene is difficult to form and maintain. While hBN and g–C3N4 are much less studied as electrocatalysts, there is clear evidence that these 2D materials can be modified to give composites that favour the two electron oxygen reduction reaction, while g–C3N4-based materials are becoming well established as photocatalysts, effectively employing visible light, for the production of H2O2.

show abstract

Inkjet-Printed Reduced Graphene Oxide (rGO) Films For Electrocatalytic Applications

Cited by 17 publications

References 42 publications

Graphene Inks Printed by Aerosol Jet for Sensing Applications: The Role of Dispersant on the Inks’ Formulation and Performance

Graphene Inks Printed by Aerosol Jet for Sensing Applications: The Role of Dispersant on the Inks’ Formulation and Performance

Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

Review—2D Graphene and Graphene-Like Materials and Their Promising Applications in the Generation of Hydrogen Peroxide

Contact Info

Product

Resources

About