A5005175336- MXene and MAX Phase Materials
- Advanced Photocatalysis Techniques
- 2D Materials and Applications
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Carbon Nanotubes in Composites
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Covalent Organic Framework Applications
- Boron and Carbon Nanomaterials Research
- Electrochemical Analysis and Applications
- ZnO doping and properties
- Advanced battery technologies research
- Metal-Organic Frameworks: Synthesis and Applications
- Nanomaterials for catalytic reactions
- Machine Learning in Materials Science
- Fuel Cells and Related Materials
- Membrane Separation and Gas Transport
- Tribology and Wear Analysis
- Chalcogenide Semiconductor Thin Films
- Solar-Powered Water Purification Methods
- Conducting polymers and applications
- Biodiesel Production and Applications
- Porphyrin and Phthalocyanine Chemistry
- Copper-based nanomaterials and applications
Jain University
2022-2025
Jawaharlal Nehru Centre for Advanced Scientific Research
2012-2021
RMIT University
2018-2021
Sheikh Saqr Laboratory
2016-2019
Bangalore University
2019
International Centre for Materials Physics
2018
Abstract Chemical doping of graphene is necessary to generate a band gap that valuable for range applications. with elements like nitrogen and boron gives rise useful properties. In this context, recent studies borocarbonitrides, BxCyNz, comprising carbon, the two on either side it, are significance. While uniformly homogeneous compositions borocarbonitrides may be hard generate, there have been efforts synthesize them by solid state as well gas phase routes. The products obtained show...
Various forms of carbon, especially the nanocarbons, have received considerable attention in recent years. There has also been some effort to investigate borocarbonitrides, BxCyNz, comprising besides two elements on either side. Although uniformly homogeneous compositions borocarbonitrides may be difficult generate, there attempts prepare them by solid state as well gas phase reactions. Some products so obtained show evidence for presence BCN networks. Then, are composites (G–BN) containing...
Generation of hydrogen by photochemical, electrochemical, and other means is a vital area research today, variety materials have been explored as catalysts for this purpose. C3N4, MoS2, nitrogenated RGO (NRGO) are some the important catalytic investigated evolution reaction (HER) reaction, but observed activities somewhat marginal. Prompted preliminary reports that covalent cross-linking 2D to generate heteroassemblies or nanocomposites may beneficial effect on activity, we synthesized...
Abstract Graphene is a well‐known 2D material with potential applications. In recent years, materials of other elements have come to the fore. These are borophene in group III, silicene, germanene and stanene IV phosphorene, arsenene, antimonene bismuthene V. this article, we discuss synthesis, structure properties elemental beyond graphene. Of various materials, borophene, silicene phosphorene interesting terms stability leading possible We described applications as well.
Band gap tunability and good electronic conductivity makes 2D MPX 3 systems as potential candidates for photocatalytic electrocatalytic HER. The generation of heterojunction between with other HER active materials further enhances the activity stability.
Hydrogen production by photochemical and electrochemical means is an important area of research related to renewable energy. 2D nanomaterials such as C3N4 MoS2 have proven be active for the hydrogen evolution reaction (HER). Phosphorene, a mono-elemental layer phosphorus, known catalyze HER, but activity marginal. The use phosphorene also limited its ambient instability. We been able prepare covalently cross-linked nanocomposites with well MoSe2. phosphorene-MoS2 nanocomposite shows...
Abstract A MoS 2 ‐RGO composite and borocarbonitride (BC 5 N) have been used as electrodes to selectively detect dopamine uric acid in the presence of ascorbic acid. Both show excellent eletrocatalytic activity towards detection dopamine, limits being 0.55 μM 2.1 case BCN respectively. shows a linear range current over 1–110 concentrations while 2.3–20 range. also exhibits satisfactory performance oxidation with limit 3.8 from 4 40 μM. The has adenine well.
Covalent assemblies of MoS<sub>2</sub>and MoS<sub>2</sub>–RGO are synthesized by Sonogashira coupling, which exhibit high CO<sub>2</sub>and H<sub>2</sub>uptake as well enhanced hydrogen evolution activity due to generated pores and more exposed edges.
Nanocomposites formed by poly(diallyldimethylammonium chloride) (PDDA, shown as P)-functionalized reduced graphene oxide (RGO) and borocarbonitride (BC6N, BCN for simplicity) sheets with layers of negatively charged MoS2 MoSe2 have been synthesized a solution process. The nanocomposites exhibit superior photocatalytic hydrogen evolution reaction (HER) activity compared to the individual components, value increasing MoS2/MoSe2 content. highest HER obtained is 11230 μmol h–1 g–1 in...
Covalent linking of 2D structures such as graphene, MoS<sub>2</sub>and C<sub>3</sub>N<sub>4</sub>by employing coupling reactions provides a strategy to generate variety materials with new or improved properties.
In the light of recent discovery that carbon-rich borocarbonitrides show electrocatalytic activity for generating hydrogen from water, we have synthesized nanocomposites by covalently cross-linking BC7N with MoS2 sheets to explore whether HER can be significantly enhanced. order cross-link and sheets, exploited presence different functional groups on surfaces BN (NH2) graphene (COOH) domains borocarbonitride, as quantitatively determined FLOSS. We thus obtained two differing in location...
Various mono and bimetallic phosphochalcogenides are synthesized from their constituent elements exfoliated down to few-layers by sonication in aqueous media photochemical HER activity is investigated.
Nanocomposites formed by carboxyl-functionalized MoS2 nanotubes with poly(diallyldimethylammonium chloride) (PDDA, described as P)-modified single-walled carbon (SWCNT) and borocarbonitride (BCNNT) have been prepared a solution-phase flocculation of 1D nanotubes. The nanocomposites show higher photocatalytic electrocatalytic HER activities compare to the individual constituents, where H2 yield improves nanotube proportion. maximum evolution rate achieved is 7475 μmol g–1 h–1 in nanocomposite...
The figure shows the electrostatic restacking of FePS 3 and BCN for HER applications.
This study presents a facile strategy for synthesizing in situ N-doped Fe2O3 from iron nitride to tune its band structure photocatalytic applications. XRD analysis confirms the structural formation α-Fe2O3, while XPS verifies nitrogen incorporation of 8.87% and 5.52% obtained by oxidizing at 450 °C 550 °C, corresponding high-doped low-doped (HD-FO LD-FO) systems. FESEM BET showed that N-doping influenced particle aggregation, surface area, porosity, with bare (FO) exhibiting highest area...
Abstract Few‐layer graphene‐like sheets of MoS 2 , WS MoSe and WSe were prepared by employing two methods. The first method uses microwave synthesis in ethylene glycol or water medium the second involves laser irradiation bulk samples dispersed dimethylformamide. few‐layer dichalcogenide characterized various microscopic spectroscopic techniques. These graphene mimics show room‐temperature ferromagnetism exchange bias besides magnetoresistance at room temperature. We have deposited...
The nanocomposites of MoS2 nanosheets with the metal-organic framework, ZIF-8, have been synthesized starting layers 1T-MoS2 generated by Li intercalation bulk MoS2, followed exfoliation. contain Zn-S bond and exhibit reasonably high surface areas. They CO2 uptake higher than ZIF-8. Heating to 900 °C under a N2 atmosphere yields MoS2-ZnS which show good activity for visible-light induced hydrogen evolution reaction.
Mechanical properties of single-walled carbon nanohorns (SWNH) and SWNH plus few-layer graphene (EG)-reinforced poly(vinyl alcohol) (PVA) matrix composites have been measured using the nanoindentation technique. The elastic modulus (E) hardness (H) PVA were found to improve by ∼315% ∼135%, respectively, upon addition just 0.4 wt % SWNH. These be comparable those obtained 0.2 nanotubes (SWNT) PVA. Furthermore, binary EG PVA, benefits in form ∼400% ∼330% synergy E H, observed, along with an...
Abstract A silver ion (Ag + )‐triggered thixotropic metallo(organo)gel of p ‐pyridyl‐appended oligo( ‐phenylenevinylene) derivatives (OPVs) is reported for the first time. Solubilization single‐walled carbon nanohorns (SWCNHs) in solutions pure OPVs as well metallogels mediated by π–π interactions has also been achieved. In situ fabrication nanoparticles (AgNPs) SWCNH‐doped dihybrid gel leads to formation a trihybrid metallogel. The mechanical strength could be increased stepwise order:...
Among the 2D materials, van der Waals heterostructures formed by vertically placing a monolayer of one material over single layer another are gaining importance. As an alternative to such structures, ladder-like networks composed two different materials with alternate arrangement heterolayers can be generated electrostatic restacking strategy. The is achieved great success. Various 2D/2D hetero-superlattices reported in literature MoS2/graphene, MnO2/Ti3C2, Ti3C2/graphene, NiAl–layered...