Synergistic surface basicity enhancement effect for doping of transition metals in nanocrystalline MgO as catalysts towards one pot Wittig reaction

Moulavi, Mansur; Kanade, K.G.; Amalnerkar, Dinesh; Fatehmulla, Amanullah; Manthrammel, M. Aslam

doi:10.1016/j.arabjc.2021.103134

Cited by 11 publications

(3 citation statements)

References 43 publications

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“…Figure 2a presents the XRD pattern of MgO NSs. As seen, all diffraction peaks of MgO NSs are well consistent with the peaks of cubic‐phased MgO standard PDF card (PDF #45‐0946), 39 which indicates that MgO NSs are successfully synthesized. Figure 2b,c presents the SEM of as‐synthesized MgO NSs, and it can be observed that the MgO NSs exhibit a hexagonal structure with about 400 nm lateral size and 40 nm thickness.…”

Section: Resultssupporting

confidence: 70%

Enhancing high‐temperature breakdown strength of polyetherimide dielectric nanocomposites with MgO nanosheets by inhibiting charge migration

Yang

et al. 2023

J of Applied Polymer Sci

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Polymer‐based dielectric nanocomposites with excellent high‐temperature energy storage performance are highly desirable in advanced electronic and power systems, but it remains a challenge to achieve superior breakdown strength at elevated temperatures. In this work, two‐dimensional (2D) magnesium oxide nanosheets (MgO NSs) are prepared by a hydrothermal method and used as fillers to fabricate MgO NSs/polyetherimide (PEI) dielectric nanocomposites. The effect of MgO NSs addition (1–4 wt%) on breakdown strength of MgO NSs/PEI nanocomposites is studied from 25 to 150°C. As a result, the nanocomposites containing 3 wt% MgO NSs obtain maximum breakdown strength of 538 kV mm−1 at 150°C, which is 25% higher than that of pure PEI and remains 92% of the room‐temperature value, accompany with an excellent discharged energy density of 3.66 J cm−3. The enhancement of breakdown strength could be attributed to the 2D structure and wide band gap (~7.8 eV) of MgO NSs, which act as barriers to suppress the electrical tree growth and create deep traps to capture charge, thus inhibiting the migration of charge carriers and suppressing electrical conduction. This work provides an effective approach for developing high‐temperature polymer‐based dielectric nanocomposites with high breakdown strength and discharged energy density.

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Section: Resultssupporting

confidence: 70%

Enhancing high‐temperature breakdown strength of polyetherimide dielectric nanocomposites with MgO nanosheets by inhibiting charge migration

Yang

et al. 2023

J of Applied Polymer Sci

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“…Researchers are therefore seeking to improve the activity of the catalyst by modifying the MgO support. [20][21][22] In recent years, there has been growing interest in altering the properties of supports by introducing defects on their surfaces. [23][24][25][26][27][28][29] However, limited research has been conducted on the modication of MgO supports through surface defects.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers are therefore seeking to improve the activity of the catalyst by modifying the MgO support. 20–22…”

Section: Introductionmentioning

confidence: 99%

Regulating oxygen vacancies by Zn atom doping to anchor and disperse promoter Ba on MgO support to improve Ru-based catalysts activity for ammonia synthesis

Chen,

He,

Lei

et al. 2024

RSC Adv.

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Effect of P–Si Binary System on the Formation Mechanism of AZ91D MAO Coating

Zhang,

Liu,

et al. 2024

Metall Mater Trans A

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Synergistic surface basicity enhancement effect for doping of transition metals in nanocrystalline MgO as catalysts towards one pot Wittig reaction

Cited by 11 publications

References 43 publications

Enhancing high‐temperature breakdown strength of polyetherimide dielectric nanocomposites with MgO nanosheets by inhibiting charge migration

Enhancing high‐temperature breakdown strength of polyetherimide dielectric nanocomposites with MgO nanosheets by inhibiting charge migration

Regulating oxygen vacancies by Zn atom doping to anchor and disperse promoter Ba on MgO support to improve Ru-based catalysts activity for ammonia synthesis

Effect of P–Si Binary System on the Formation Mechanism of AZ91D MAO Coating

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