Effect of NiO, ZrO2 and TiO2 on the formation of glass-ceramic cordierite in the MgO–Al2O3–SiO2–MoO3 system

Zalapa-Garibay, Manuela Alejandra; Reyes-López, Simón Yobanny

doi:10.1016/j.jmrt.2023.12.176

Cited by 4 publications

(1 citation statement)

References 35 publications

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“…The Pb-O units were observed at 521-540 cm -1 in the vicinity, respectively. Within the range of 721-742 cm -1 , the bands resulting from Ti-O specific vibrations will be predicted (14,15) . 5 contained the Raman band assignment.…”

Section: Resultsmentioning

confidence: 99%

Impact of Bi2O3 on the Structural, Optical, Radiation Shielding, and Dielectric Analysis of Lead Borosilicate Glasses Doped with TiO2

Krishna,

Guntu,

Chand

et al. 2024

IJST

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Objective: The principal aim of this investigation was to assess the impact of bismuth oxide on the optical properties, radiation shielding characteristics, and dielectric behavior of lead borosilicate glasses doped with titanium oxide at a low concentration. Method: We intended to utilize the conventional rapid melt quenching method to produce glasses with the following chemical composition: 25 PbO+ 15 B2O3 + 0.1 TiO2 + (59.9-x) SiO2 : x Bi2O3(0≤x≤12). Findings: XRD and SEM analyses were used to confirm the samples' non-crystalline properties, while DTA investigations were used to evaluate the samples' ability to form glass. The numerous structural elements were identified through the utilization of FT–IR and Raman analyses. The optical characteristics of glasses are determined by optical absorption studies. The findings derived from optical absorption spectral analyses revealed a progressive increase in the concentration of octahedral Ti4+ ions with the mol% Bi2O3 concentration. In order to analyse the glasses' dielectric properties, an impudence analyser was employed. The results obtained from these inquiries indicate that glasses do contain Bi2O3 at concentrations lower than 12 mol% experience a progressive increase in dielectric constant values. Further investigation is conducted into the radiation shielding properties of the glasses. Novelty: The findings indicate that the values of the glasses' optical band gap, radiation shielding ability, dielectric constant, and thermal stability are all directly correlated with their Bi2O3 concentration. Keywords: FTIR, Raman, OBG, MAC, Activation Energy

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Section: Resultsmentioning

confidence: 99%

Impact of Bi2O3 on the Structural, Optical, Radiation Shielding, and Dielectric Analysis of Lead Borosilicate Glasses Doped with TiO2

Krishna,

Guntu,

Chand

et al. 2024

IJST

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Advancements in the application of metal oxide nanocatalysts for sustainable biodiesel production

Awogbemi,

Ojo,

Adeleye

2024

Discov Appl Sci

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The growing population and the unpalatable ecological impact of exploration and utilization of fossil-based fuels have resulted in increased demand for biofuel as an alternative fuel for engines and power generation. The global demand for biodiesel, a prominent member of the biofuels family, has continued to increase over the past decades with researchers devising various means to intensify cost-effective production. The use of metal oxide nanocatalysts is one of the feasible strategies to meet the increased demand for quality biodiesel. This study reviews the recent advances in the deployment of commonly used metal oxide nanoparticles such as MgO, CaO, TiO2, ZnO, and ZrO2 to accelerate sustainable biodiesel production. Converting conventional metal oxide heterogeneous catalysts into nanoparticles enhances the surface configuration, chemical and thermal stability, porosity, and crystallinity of the nanocatalysts. The deployment of metal oxide nanocatalysts hasten the transesterification reaction, reduces reaction temperature and time, and enhances biodiesel yield. Biodiesel synthesized with the aid of metal oxide nanoparticles is of impeccable quality and meets international standards. Notwithstanding the few challenges, the application of metal oxide nanoparticles as heterogeneous catalysts engenders sustainable biodiesel production and contributes to energy security. More innovative and collaborative studies are needed to reduce the ethical, economic, infrastructural, and environmental consequences of the usage of nanomaterials for sustainable biodiesel production.

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Open-cell cordierite-based foams from eco-friendly geopolymer precursors via replica route

Bai,

Li,

et al. 2024

Ceramics International

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Effect of NiO, ZrO2 and TiO2 on the formation of glass-ceramic cordierite in the MgO–Al2O3–SiO2–MoO3 system

Cited by 4 publications

References 35 publications

Impact of Bi2O3 on the Structural, Optical, Radiation Shielding, and Dielectric Analysis of Lead Borosilicate Glasses Doped with TiO2

Impact of Bi2O3 on the Structural, Optical, Radiation Shielding, and Dielectric Analysis of Lead Borosilicate Glasses Doped with TiO2

Advancements in the application of metal oxide nanocatalysts for sustainable biodiesel production

Open-cell cordierite-based foams from eco-friendly geopolymer precursors via replica route

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