Fine tuning of inkjet printability parameters for NiO nanofilms fabrication

Samos-Puerto, Angel; Rodríguez‐Gattorno, Geonel; Ruiz‐Gómez, Miguel A.

doi:10.1016/j.colsurfa.2019.123959

Cited by 9 publications

(5 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ink formulation is one of the main challenges in inkjet printing and needs to be optimized for acceptable printing results. In this regard, the inverse Ohnesorge number ( Z ) parameter is used to evaluate ink printability and drop stability, where the ink’s surface tension and viscosity are the critical parameters, as shown in eq Z = ( γ ρ α ) 0.5 η where γ is the surface tension, ρ is the density, α is the nozzle diameter, and η is the viscosity of the fluid.…”

Section: Resultsmentioning

confidence: 99%

“… Z = ( γ ρ α ) 0.5 η where γ is the surface tension, ρ is the density, α is the nozzle diameter, and η is the viscosity of the fluid. To ensure stable drop formation and good printing, Z should be 4 < Z < 14 . Aqueous inks are environmentally friendly and economical; however, water has a Z value of 37.89, which is very high, resulting in poor printability.…”

Section: Resultsmentioning

confidence: 99%

“…In this regard, the inverse Ohnesorge number (Z) parameter is used to evaluate ink printability and drop stability, where the ink's surface tension and viscosity are the critical parameters, as shown in eq 5. 56 = Z ( ) 0.5…”

Section: Materials Synthesis and Characterization 311 δ-Mno 2 Nanosheetsmentioning

confidence: 99%

“…To ensure stable drop formation and good printing, Z should be 4 < Z < 14. 56 Aqueous inks are environmentally friendly and economical; however, water has a Z value of 37.89, which is very high, resulting in poor printability. The physical properties of water can be effectively modified by using environmentally safe and inexpensive liquid modifiers, such as ethylene glycol (EG) and ethanol.…”

Section: Materials Synthesis and Characterization 311 δ-Mno 2 Nanosheetsmentioning

confidence: 99%

See 3 more Smart Citations

Layer-by-Layer Inkjet-Printed Manganese Oxide Nanosheets on Graphene for High-Performance Flexible Supercapacitors

Belal,

Yousry,

Taulo

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The widespread adoption of wearable, movable, and implantable smart devices has sparked the evolution of flexible, miniaturized power supplies. High-resolution inkjet printing of flexible microsupercapacitor (μSC) electrodes is a fast, inexpensive, and wastefree alternative manufacturing technology. In this work, a 2D birnessitetype manganese dioxide (δ-MnO 2 ) water-based ink is used to print 10− 25 layers of δ-MnO 2 symmetrically on a preprinted interdigitated cell consisting of 10 layers of electrochemically exfoliated graphene (EEG). The cell with 10 printed layers of δ-MnO 2 achieved the highest specific capacitance, energy density, and power density of 0.44 mF cm −2 , 0.045 μW h cm −2 , and 0.0012 mW cm −2 , respectively. Since inkjet-printing technology supports μSC manufacturing with parallel/series connectivity, four cells were used to study and improve the potential window and capacitance that can be used to construct μSC arrays as power banks. This work provides the first approach for designing an inkjet-printed interdigitated hybrid cell based on δ-MnO 2 @EEG that could be a versatile candidate for the large-scale production of flexible and printable electronic devices for energy storage.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Materials Synthesis and Characterization 311 δ-Mno 2 Nanosheetsmentioning

confidence: 99%

Section: Materials Synthesis and Characterization 311 δ-Mno 2 Nanosheetsmentioning

confidence: 99%

See 2 more Smart Citations

Layer-by-Layer Inkjet-Printed Manganese Oxide Nanosheets on Graphene for High-Performance Flexible Supercapacitors

Belal,

Yousry,

Taulo

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Figure 8 shows the UV-VIS-NIR spectra obtained for the brush-painted aluminum plates. Co 3 O 4 and NiO paints showed the characteristic optical response of their nature [15,28,33,[56][57][58], with the Ni x Co 3−x O 4 paints having similar optical properties as those reported for NiCo 2 O 4 [24,27]. It can be seen that thermal treatment (200 • C for 24 h) provoked slight changes in the intensity of some peaks in Co 3 O 4 and NiO paints, while it did not affect the Ni x Co 3−x O 4 paints, because the reflectance curves for both sets were similar.…”

Section: Evaluation Of Selective Paintsmentioning

confidence: 99%

Enhanced Performance of Nickel–Cobalt Oxides as Selective Coatings for Flat-Plate Solar Thermal Collector Applications

Bacelis-Martínez,

Herrera-Zamora,

Ávila Santos

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

Solar thermal collectors represent a practical option to capture energy from the sun, providing low-cost domestic and industrial heating and decreasing the dependency on fossil fuels. Spinel-type metal oxides show interesting physicochemical properties and so can be used as active materials for converting solar energy to electrical, chemical, and heat energy. We report the synthesis and characterization of nickel–cobalt mixed metal oxides used as an active phase in selective paints for solar absorber coatings applied to a domestic flat collector. The nickel–cobalt mixed oxides crystallized in the cubic phase related to the spinel structure, exhibiting good thermal stability and reproducibility. These mixed oxides presented oxidation states (2+ and 3+) for both nickel and cobalt. The coatings fabricated from the selective paints based on nickel–cobalt mixed oxides showed a solar absorptance value of 94%, while for the commercial paint Solkote®, the value was 93%. A representative coating based on the NiCo2O4 composition was evaluated for the first time in a domestic-type flat solar collector for water heating under real operating conditions, achieving an outstanding performance that competes with that of commercial collectors. The potential application of nickel–cobalt mixed oxides in solar collectors opens up new opportunities for future innovations and developments in functional absorber coatings.

show abstract