Publications by authors named "S Narendranath"
A tetragonal zirconia-faujasitic SAPO-37 zeolite composite (SAP-37ZR) was synergistically stabilised at 550 °C using a temperature programmed reduction method. The presence of the zeolite-ZrO composite phase was confirmed through powder XRD reflection, SEM and TEM-ED pattern analyses. The developed SAP-37ZR composite, exhibiting moderate acidity, was found to be highly active for the production of ethyl levulinate (EL) from furfuryl alcohol with a 99% yield.
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- The study examines the elemental composition of the Moon's surface to understand its formation and evolution, utilizing data from multiple lunar missions.
- Recent in situ measurements from India's Chandrayaan-3 mission reveal that the southern high-latitude regions of the Moon are primarily made up of ferroan anorthosite, indicating a history of crystallization from a lunar magma ocean.
- The presence of higher magnesium levels compared to calcium suggests that there is mixing with additional mafic materials, while the consistent composition within the surrounding area lends support to remote sensing data accuracy.
A temperature-programmed reduction method was developed to stabilize SAPO-37 and molybdenum-(oxy)-carbide-loaded SAPO-37 (SAP-37MoCR). The inorganic framework (Faujasite type SAPO-37) was retained for the first time even after treatment at 550 °C and was confirmed through powder XRD and SEM analysis. SAP-37MoCR exhibits strong acidic sites and is a promising catalyst for MTBE synthesis.
View Article and Find Full Text PDFA layered zeolite precursor of MWW type (MCM-22) was successfully delaminated (ITQ-2) in the presence of nickel oxy-hydroxide. The broadening of XRD peaks corresponding to the (100), (220), and (310) planes and the disappearance of the (002) plane confirm the delamination. The curled ITQ-2 sheets having uniform lattice fringes, and the slit-shaped layers illustrate the formation of nickel-oxy-hydroxide-decorated ITQ-2 (Ni-ITQ-2 composite).
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- The text highlights the innovative use of TiO-based nanomaterials in energy applications, especially in dye-sensitized solar cells (DSSCs) that convert light into electricity.
- TiO nanomaterials are popular for their non-toxic nature, high surface area, efficient electron transport, and customizable properties, which enhance the performance of DSSCs as photoanodes.
- The review emphasizes the importance of modifying TiO photoanodes through doping and changes in morphology, detailing how these alterations affect the overall design and efficiency of solar cells.