A5000640861- Corrosion Behavior and Inhibition
- Surface Modification and Superhydrophobicity
- TiO2 Photocatalysis and Solar Cells
- Microwave Dielectric Ceramics Synthesis
- Silicone and Siloxane Chemistry
- Gas Sensing Nanomaterials and Sensors
- Ferroelectric and Piezoelectric Materials
- Layered Double Hydroxides Synthesis and Applications
- Metal and Thin Film Mechanics
- Thermal Expansion and Ionic Conductivity
- Advanced ceramic materials synthesis
- Advanced Photocatalysis Techniques
- Glass properties and applications
- Advancements in Solid Oxide Fuel Cells
- Magnesium Oxide Properties and Applications
- Concrete Corrosion and Durability
- ZnO doping and properties
- Concrete and Cement Materials Research
- Magnesium Alloys: Properties and Applications
- Anodic Oxide Films and Nanostructures
- Aerogels and thermal insulation
- Microwave-Assisted Synthesis and Applications
- Magnetic and transport properties of perovskites and related materials
- Transition Metal Oxide Nanomaterials
- Analytical Chemistry and Sensors
International Advanced Research Centre for Powder Metallurgy and New Materials
2016-2025
Max Planck Institute for Intelligent Systems
2001-2008
Max Planck Society
2000-2008
American Ceramic Society
2005-2008
National Institute for Materials Science
2003-2006
Indira Gandhi Centre for Atomic Research
1997-2003
A rapid microwave solid-state synthesis method is systematically investigated to achieve a H2 producing visible light active spinel photocatalyst. ZnFe2O4 nanocrystallites were obtained by irradiation of precursor compacts under optimized conditions. This investigation led uniform sized nanocrystalline photocatalyst that yielded quantum-yield evolution ∼3.8 times higher than conventionally synthesized ZnFe2O4. The parameters – power, temperature, and time, found control the physico-chemical...
This paper investigates solar radiation-induced photocatalytic hydrogen generation using spinel ZnFe2O4 (ZFO) photocatalysts fabricated different routes, viz., solid state reaction (SSR), polymer complex (PC), microwave sintering (μW) and self-propagating combustion (SPC) method. The physicochemical properties of the like crystallinity, surface area, band gap energetics is studied as it influences their photochemical behavior. study reveals a high crystallinity ZFO photocatalysts, those are...
This study emphasizes on the evaluation and comparison of anticorrosive properties sol–gel coatings with without inhibitor loaded nanocontainers. In this case, naturally available clay nanotubes (halloysite) were cationic corrosion inhibitors Ce3+/Zr4+. These nanocontainers dispersed in hybrid organic–inorganic matrix sol. Coating was applied magnesium alloy AZ91D using sols containing modified unmodified employing dip coating method cured at 130 °C for 1 h air. Corrosion resistance...
Halloysite nanotubes were used as nanocontainers to hold corrosion inhibitors such Ce3+-Zr4+, 2-mercaptobenzothiazole and 8-hydroxyquinoline in their lumen. An acid assisted etching of the was carried out with a view increase lumen diameter thereby, amount loading inhibitor. The morphology as-received etched halloysite observed using TEM analysis. confirmed SEM-EDS BET Polymeric microcapsules capping agents for ends loaded HNTs following which, they dispersed into hybrid sol-gel silica...
Yttria stabilized zirconia (8YSZ) powders were subjected to densification studies employing various sintering techniques like spark plasma (SPS), microwave (MWS) and two-stage (TSS). The microstructural evolution of the samples are studied compared with that conventionally sintered (ramp hold). Depending on technique employed at different temperatures arrive a minimum density 99%TD. Detailed evaluation indicated low temperature leading finer grain sizes (~1 ?m) could be achieved by followed...
Development of smart coatings incorporated with corrosion indicators that can warn through signaling the alteration pH or metal-ion concentration at site, and simultaneously mitigate further corrosion, stands out as a highly efficient economical approach to address issues. In this context, present work provides comprehensive comparison on effectiveness thymol blue (TB) phenolphthalein (PhPh) in both sensing inhibiting mild steel. While most works primarily focused independently investigating...
A bilayered electrode bearing the configuration SnO2|TiO2 over a substrate like transparent conducting Indium Tin Oxide coated glass was found to store charge accumulated during ultraviolet illumination. Photogenerated electrons from TiO2 are transferred SnO2 that excess via cation intercalation. red shift in absorbance of coating observed due reduction valence state Sn duringcharging and high capacitance bilayer detected by ac impedance measurements. The storage property makes it candidate...