Multi-layered thin film nanocomposite MoS2@MoO2/MWCNP/ITO-PET: Electrochemical approaches for synthesis and structural characterizations

Nguyen, Duc-Binh; Dong, Thi My Trong; Nguyen, Tien-Thanh; Vuong, Vinh-Dat; Phong, Mai Thanh; Le, Thang Van

doi:10.1016/j.apsusc.2021.150508

Cited by 4 publications

(6 citation statements)

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“…The functionalized multiwalled carbon nanotubes (f-MWCNTs) were homemade, as described previously. ,, Briefly, f-MWCNTs were prepared from raw multiwalled carbon nanotubes (r-MWCNTs) produced by fluidized bed chemical vapor deposition (FBCVD) from liquid toluene and Mo–Fe/Al 2 O 3 catalyst, with a diameter of ∼20–30 nm. The purification was fulfilled through a 2-step process: gas and liquid phase oxidation.…”

Section: Methodsmentioning

confidence: 99%

“…A plastic EPD cell was used to minimize their influence on the electric field. The electrolyte was prepared similarly to the previous study . Briefly, 0.375 g of aluminum nitrate nonahydrate (Al(NO 3 ) 3 ·9H 2 O, 99.99%, Sigma-Alrich) was dissolved in 20 mL of distilled water to make a 0.05 mol L –1 Al(NO 3 ) 3 solution.…”

Section: Methodsmentioning

confidence: 99%

“…The electrolyte was prepared similarly to the previous study. 68 Briefly, 0.375 g of aluminum nitrate nonahydrate (Al(NO 3 ) 3 •9H 2 O, 99.99%, Sigma-Alrich) was dissolved in 20 mL of distilled water to make a 0.05 mol L −1 Al(NO 3 ) 3 solution. Then, 180 μL of 0.05 mol L −1 Al(NO 3 ) 3 solution was stirred with 90 mL of isopropyl alcohol (IPA, 99.5%, Alfa Aesar) for 10 min.…”

Section: Functionalization Of Multiwalled Carbon Nanotubes Withmentioning

confidence: 99%

“…Our previous work has developed two-step electrodeposition as a facile method to fabricate CNTs thin films that exhibited great potential due to its ability to rapidly produce large-area thin films, besides controlling nanostructures of materials. 68 However, the influence of electric field on the EPD process has not been the subject of in-depth discussion. Therefore, the electric field simulation combined with the as-prepared thin film analysis is used to study the EPD cell design in this paper.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Thus, the Al 3+ cation is adsorbed on f-MWCNTs, which results in increasing the positive charge and reducing the applied voltage for the EPD process. Our previous work has developed two-step electrodeposition as a facile method to fabricate CNTs thin films that exhibited great potential due to its ability to rapidly produce large-area thin films, besides controlling nanostructures of materials . However, the influence of electric field on the EPD process has not been the subject of in-depth discussion.…”

Section: Introductionmentioning

confidence: 99%

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Simulation and Verification of the Direct Current Electric Field on Fabricating High Porosity f-MWCNTs Thin Films by Electrophoretic Deposition Technique

Nguyen

Vuong

et al. 2023

Langmuir

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Electrophoretic deposition (EPD) is the potential process in high porosity thin films’ fabrication or complex surface coating for perovskite photovoltaics. Here, the electrostatic simulation is introduced to optimize the EPD cell design for the cathodic EPD process based on functionalized multiwalled carbon nanotubes (f-MWCNTs). The similarity between the thin film structure and the electric field simulation is evaluated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) results. The thin-film surface at the edge has a higher roughness (Ra) compared to the center position (16.48 > 10.26 nm). The f-MWCNTs at the edge position tend to be twisted and bent due to the torque of the electric field. The Raman results show that f-MWCNTs with low defect density are more easily to be positively charged and deposited on the ITO surface. The distribution of oxygen and aluminum atoms in the thin film reveals that the aluminum atoms tend to have adsorption/electrostatic attraction to the interlayer defect positions of f-MWCNTs without individually depositing onto the cathode. Finally, this study can reduce the cost and time for the scale-up process by optimizing the input parameters for the complete cathodic electrophoretic deposition process through electric field inspection.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Functionalization Of Multiwalled Carbon Nanotubes Withmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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