- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- biodegradable polymer synthesis and properties
- Advancements in Battery Materials
- Advanced Cellulose Research Studies
- Biofuel production and bioconversion
- Organometallic Complex Synthesis and Catalysis
- Electrocatalysts for Energy Conversion
- Polymer crystallization and properties
- MXene and MAX Phase Materials
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Nanomaterials for catalytic reactions
- Electronic Packaging and Soldering Technologies
- Magnesium Oxide Properties and Applications
- Membrane Separation Technologies
- Carbon dioxide utilization in catalysis
- Copper Interconnects and Reliability
- Catalysis for Biomass Conversion
- Covalent Organic Framework Applications
- Polymer Foaming and Composites
- Synthesis and properties of polymers
- Tribology and Lubrication Engineering
Sardar Vallabhbhai National Institute of Technology Surat
2011-2021
Pusan National University
2016-2020
Government of the Republic of Korea
2017-2020
Global Frontier Hybrid Interface Materials
2017
Interface (United States)
2017
Reliance Industries (India)
2005-2011
Reliance Industries (United States)
2011
The present study involves the synthesis of a bismuth oxide (Bi2O3) electrode consisting an arranged nano-platelets for evolving flower-type surface appearance on nickel-foam (Bi2O3-Ni-F) by simple, inexpensive, binder-free and one-step chemical bath deposition (CBD) method, popularly known as wet method. as-prepared Bi2O3 Ni-foam, material, demonstrates 557 F g-1 specific capacitance (SC, at 1 mA cm-2), which 85% is retained even after 2000 cycles. With power density 500 kW kg-1, Bi2O3-Ni-F...
Schematic representation of the synthesis MoNiO<sub>4</sub> flower-like nanostructures.
A hybrid electrochemical energy storage device assembled with faradaic Bi<sub>2</sub>O<sub>3</sub>and MnO<sub>2</sub>electrodes exhibits superior performance a high density of 79 W h kg<sup>−1</sup>at power 702 kg<sup>−1</sup>.
In this work, we report the synthesis of a Bi2O3-MnO2 nanocomposite as an electrochemical supercapacitor (ES) electrode via simple, low-cost, eco-friendly, and low-temperature solid-state chemical process followed by air annealing. This as-synthesized was initially examined in terms its structure, morphology, phase purity, surface area using different analytical techniques thereafter subjected to measurements. Its performance demonstrated excellent supercapacitive properties wide potential...
This paper reports an efficient and simple strategy for the synthesis of molybdenum copper selenide (MoCuSe) nanoparticles decorated with a combination carbon nanotube (CNT) network reduced graphene oxide (rGO) nanosheets to form integrated hybrid architecture (CNT@rGO@MoCuSe) using two-step hydrothermal approach. The synthesized CNT@rGO@MoCuSe material onto Ni foam substrate is applied successfully as effective counter electrode (CE) in quantum dot-sensitized solar cells (QDSSCs). A highly...
The specific capacitance and energy density of antimony trisulfide (Sb2S3)@carbon supercapacitors (SCs) have been limited are in need significant improvement. In this work, Sb2S3 nanoparticles were selectively encapsulated or anchored a sulfur-doped carbon (S-carbon) sheet depending on the use microwave-assisted synthesis. microwave-triggered nanoparticle growth resulted core–shell hierarchical spherical particles uniform diameter assembled with as core an S-carbon layer shell (Sb2S3-M@S-C)....
Herein, we tailor the surface morphology of nickel-manganese-layered double hydroxide (NiMn-LDH) nanostructures on 3D nickel-foam via a step-wise cobalt (Co)-doping hydrothermal chemical process. At 10% optimum level Co-doping, noticed thriving tuned morphological pattern NiMn-LDH (NiCoMn-LDH (10%)) in terms porosity nanosheet (NS) arrays which not only improves rate capability as well cycling stability, but also demonstrates nearly two-fold specific capacitance enhancement compared to...
Ni<sup>2+</sup> doped CdS QDs in QDSSCs can suppress charge recombination, prolong the electron lifetime and improve PCE of cell.
Schematic illustration of the two-step synthesis MgCo<sub>2</sub>O<sub>4</sub>/MgCo<sub>2</sub>O<sub>4</sub> directly grown on Ni foam.
A 3D porous carbon-manganese oxide (3D-C@MnO) nanocomposite is successfully synthesized via a thermal plasma deposition method. The chemical bonds and compositions, phase structures, surface morphologies, etc. of as-obtained 3D-C@MnO were characterized by the various equipment, such as X-ray diffractometer, photoelectron spectroscopy, electron microscopes. electrochemical performances electrode showed specific capacitance 780 F g−1 at current density 2 retention rate 99% after 5000...
Abstract Magnesium dichloride supported titanium catalyst incorporated with varying concentration of ethylbenzoate and diisobutyl phthalate together as internal donor are synthesized. The synthesized catalysts characterized compared respect to composition, phase characteristics, crystallite size, particle morphology. Performance containing mixed donors is the conventional single donor‐based catalysts. polymerization studies for propylene show dependence kinetics on relative ethylbenzoate....
The present work aimed to study the performance of ultrafiltration (UF) membranes for hemicelluloses separation, from a caustic-containing highly alkaline, cellulose purification solvent stream viscose rayon production process, and understand membrane behaviour, effect multiple use cycle, identify potential drawbacks propose possible solutions. Screening experiments showed that an UF with nominal molecular weight cut-off value 3 kDa can be used separate alkaline process stream. was found...
Interposed films of CdF2, SnF2, PbF2, InF3, or BiF3 can be used to bond vacuum-evaporated gold onto oxide glass substrates. The fluoride adheres well even when deposited at relatively low temperatures; however, except for mp 220 °C, thin (e.g., 300 Å) adhere best the fluoride-coated substrate temperature is between 120 and 180 least initially, during deposition. For these cases, discontinuous growth avoided by remaining below upper temperature. Thicker 2000 are continuous higher temperatures.
Controlled reaction of magnesium with ethanol was found to produce morphological ethoxide. The scanning electron microscopy studies indicate that particles ethoxide grow on the surface granules and are detached from as a result shearing collisions during reaction. Particle characteristics show influence kinetics well Impact other process parameter variations particle is also studied. rate, agitation speed, type agitator product characteristics, whereas no change in pressure observed.
Abstract The phenomenon of replication morphology from Zeigler-Natta catalyst to polypropylene resin has been established leading enhanced flowability with the use spherical catalyst. PP obtained using varying morphological characteristics in terms particle shape and size distribution was subjected analysis. Flowability aspects have quantified correlated circularity. Morphology controlled yields better uniformity distribution. same gets reflected form low angle repose resin. Keywords: Angle...
A novel synthetic process for the efficient control over molecular weight of poly(ether sulfone) has been studied. The application microwave irradiation condensation polymerization to synthesize is demonstrated. Microwave assisted results in significant reduction reaction time. based also feasible at lower temperature synthesis sulfone). Polymers synthesized have characterized using NMR and FTIR spectroscopy. Polymer film morphology surface composition studied SEM EDX. An increase observed...
Titanium complexes of tartarate were synthesized by complexation titanium tetrachloride with tartarate. The isolated products characterized compositional, infrared and thermogravimetric analysis. Synthesized in combination methylaluminoxane as cocatalyst polymerize ethylene to produce high‐density polyethylene. efficiency catalysts is found be dependent on polymerization parameters nature cocatalyst. polyethylene was for melting temperature molecular weight characteristics DSC GPC, respectively.
The performance of nanofiltration (NF) and ultrafiltration (UF) membranes was studied for separating hemicelluloses from a highly alkaline industrial stream, containing 17-18 wt% sodium hydroxide, resulting the viscose process. Initially, screening experiments were performed to select suitable membranes, which then investigated on pilot scale spiral module. Screening showed that UF membrane, with nominal molecular weight cut-off (MWCO) value 3 kDa, NF one, MWCO 0.5 similar range filtration...