Department of Chemistry: Recent submissions

Now showing items 301-320 of 1020

Dendrimer-encapsulated nanoparticles: New synthetic and characterization methods and catalytic applications

Pande, Surojit (RSC, 2011)

In this article we describe the synthesis, characterization, and applications of dendrimer-encapsulated nanoparticles (DENs). These materials are synthesized using a template approach in which metal ions are extracted into ...
Synthesis, characterization, and electrocatalysis using Pt and Pd dendrimer-encapsulated nanoparticles prepared by galvanic exchange

Pande, Surojit (RSC, 2011)

In this report we present the synthesis and characterization of Pt and Pd dendrimer-encapsulated nanoparticles (DENs) using the method of galvanic exchange. Sixth-generation hydroxyl-terminated poly(amidoamine) dendrimers ...
Analysis of Poly(amidoamine) Dendrimer Structure by UV–Vis Spectroscopy

Pande, Surojit (ACS, 2011-06-29)

We report a UV–vis spectroscopic study of four different types of poly(amidoamine) dendrimers. The results indicate that the degree of protonation of the interior tertiary amines of these dendrimers correlates directly to ...
Photocatalytic activity of Bi2O3 Nanocrystalline Semiconductor developed via Chemical-bath Synthesis

Pande, Surojit (Elsiever, 2014-03-20)

The present paper reports the development of semiconductor thin film by drop-casting Bi2O3 particles, prepared through chemical bath method using Bi(NO3)3 as a precursor, followed by annealing at 600 °C. Band gap energy ...
Improved photoelectrochemical water oxidation using wurtzite ZnO semiconductors synthesized through simple chemical bath reaction

Pande, Surojit (Elsiever, 2014-09-20)

In this paper we demonstrate, the drop-casting of chemically synthesized ZnO nanoparticles over ITO coated glass substrate to obtain the good-quality semiconductor thin film. UV-visible absorption spectrum of the ZnO film ...
Synthesis of ZnO/Au and ZnO/Ag nanoparticles and their photocatalytic application using UV and visible light

Pande, Surojit; Gangopadhyay, Subhashis (RSC, 2014-05-20)

We report a simple and convenient method for the synthesis of a ZnO/Au and ZnO/Ag heterostructure nanoflower by applying a surfactant mediated route. Initially, pure ZnO nanoflowers have been synthesized followed by Au and ...
Study on metal nanoparticles synthesis and orientation of gemini surfactant molecules used as stabilizer

Pande, Surojit; Saha, Subit Kumar; Gangopadhyay, Subhashis (Elsiever, 2015-05-01)

In the present study, we report the synthesis of gold (Au), silver (Ag), and gold–silver alloy (Au–Ag) nanoparticles (NPs) by seed-mediated method using gemini surfactant, containing diethyl ether spacer group as a stabilizer. ...
Graphitic-carbon nitride support for the synthesis of shape-dependent ZnO and their application in visible light photocatalysts

Pande, Surojit (RSC, 2015)

Shape-dependent synthesis of ZnO has been developed on the surface of g-C3N4 following a simple and reproducible strategy. Initially, graphitic-carbon nitride (g-C3N4) was synthesized by pyrolysis of urea which was further ...
Effect of Substrates on the Photoelectrochemical Reduction of Water over Cathodically Electrodeposited p-Type Cu2O Thin Films

Pande, Surojit (ACS, 2015-08-05)

In this study, we demonstrate development of p-Cu2O thin films through cathodic electrodeposition technique at constant current of 0.1 mA/cm2 on Cu, Al, and indium tin oxide (ITO) substrates from basic CuSO4 solution ...
Optimization of Triton-X 100 surfactant in the development of Bismuth Oxide thin film semiconductor for improved photoelectrochemical water oxidation behavior

Pande, Surojit (Elsiever, 2015-12-10)

Photocatalytically active bismuth oxide thin films have been developed through direct drop-casting method on In-doped tin oxide (ITO) coated glass substrates using 5 mM Bi(NO3)3 dissolved in ethylene glycol containing 0–4% ...
Construction of CuS/Au Heterostructure through a Simple Photoreduction Route for Enhanced Electrochemical Hydrogen Evolution and Photocatalysis

Pande, Surojit; Basu, Mrinmoyee; Nazir, Roshan (Springer Nature, 2016-10-05)

An efficient Hydrogen evolution catalyst has been developed by decorating Au nanoparticle on the surface of CuS nanostructure following a green and environmental friendly approach. CuS nanostructure is synthesized through ...
Decoration of Carbon Nitride Surface with Bimetallic Nanoparticles (Ag/Pt, Ag/Pd, and Ag/Au) via Galvanic Exchange for Hydrogen Evolution Reaction

Pande, Surojit (ACS, 2017-08-21)

Here, we propose the synthesis of AgPt, AgPd, and AgAu bimetallic nanoparticles (NPs) on a carbon nitride (C3N4) surface via a galvanic exchange technique for the hydrogen evolution reaction (HER). Prior to the synthesis ...
Microwave-Assisted Efficient Suzuki-Miyaura Cross-Coupling Reactions in Water Catalyzed by Nano-Pd/gC3N4 Composite

Pande, Surojit; Sarkar, Bibhas R. (Wiley, 2017-10-02)

Easy to make and highly efficient catalyst system comprising of Pd-nanoparticles supported on graphitic carbon nitride reported for Suzuki-Miyaura cross coupling reactions in water medium under aerobic conditions using ...
Decoration of MoS2 on g-C3N4 surface for efficient hydrogen evolution reaction

Pande, Surojit (Elsiever, 2017-12-20)

The increasing demand for energy and strain on the environment due to human activities has led to an increased focus on the development of cleaner alternative fuels. Hydrogen gas is found as a substitute in the progress ...
Magnetic resonance lineshapes in powdered and amorphous systems

Sivasubramanian, S.C. (IAS, 1986-04)

A survey is made of the theory and applications ofEPR andNMR absorption lineshapes observed in powdered and amorphous materials. The ‘spin Hamiltonian’ and ‘resonance condition’ formalisms are reviewed, andepr andnmr ...
X-ray diffraction, electron paramagnetic resonance, and electron spin echo modulation studies of the lead oxide-lead chloride-cupric chloride ternary glass system

Sivasubramanian, S.C. (ACS, 1991-08-01)

X-ray diffraction, EPR, and ESEM studies are reported for a novel ternary glass 43PbO-56PbCl2-1 CuCl2. The X-ray PDF data lead to a structural model in which octahedral building units of Cu04Cl2 are predominant. EPR spectra ...
X-ray diffraction, electron paramagnetic resonance, and electron spin echo modulation studies of the lead oxide-lead chloride-cupric chloride ternary glass system

Sivasubramanian, S.C. (ACS, 1991-08-01)

X-ray diffraction, EPR, and ESEM studies are reported for a novel ternary glass 43PbO-56PbCl2-1 CuCl2. The X-ray PDF data lead to a structural model in which octahedral building units of Cu04Cl2 are predominant. EPR spectra ...
Synthesis and characterization of two stable paramagnetic octahedral chromium(IV) complexes with dianionic tridentate SNO donor ligands and of a chromium(III) complex with a ONO donor ligand

Sivasubramanian, S.C. (Elsiever, 2008-04-01)

Two novel paramagnetic octahedral chromium(IV) complexes with dianionic tridentate SNO donor ligands containing extended π-system have been synthesized while only a paramagnetic octahedral chromium(III) complex is obtained ...
Dioxygen binding and activation by a highly reactive Cr(II) compound containing S,N-donors derived from o-aminothiophenol

Sivasubramanian, S.C. (Taylor & Francis, 2012-08-07)

We report the synthesis, characterization, and reactivity of a Cr(II) complex, [Cr(H2O)(LISQ)2] (1) [(LISQ)1− is o-iminothionebenzosemiquinonate(1−) π-radical], that is highly stable in solid state in the presence of air ...
A paramagnetic octahedral trans-dihydroxy chromium(IV) complex with dianionic tetradentate Schiff base salophen and crystal structure of its trans-diisothiocyanato analog

Sivasubramanian, S.C. (Taylor & Francis, 2012-09-06)

A paramagnetic octahedral trans-dihydroxychromium(IV) complex, [Cr(OH)2(salophen)] (1) (H2salophen = N,N′-bis(salicylidene)-1,2-phenylenediamine), has been synthesized and characterized by elemental analysis, magnetic ...

Now showing items 301-320 of 1020

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