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Browsing Sebastian C. Peter by Title

Browsing Sebastian C. Peter by Title

Now showing items 1-20 of 31

Crystal growth, structure and magnetic properties of Sm3Ni5Al19: A compound in the Sm2n+mNi4n+mAl15n+4m homologous series

Subbarao, Udumula; Ghosh, Aloke Kumar; Sarkar, Sumanta; Peter, Sebastian C. (Indian Academy of Sciences, 2014)

Sm3Ni5Al19 was obtained as large rod shaped single crystals from reactive aluminium flux. Single crystal X-ray diffraction suggests that Sm3Ni5Al19 crystallizes in the Gd3Ni5Al19 structure type, orthorhombic space group ...
Crystal Structure and Band Gap Engineering in Polyoxometalate-Based Inorganic-Organic Hybrids

Roy, Soumyabrata; Sarkar, Sumanta; Pan, Jaysree; Waghmare, Umesh V.; Dhanya, R.; Narayana, Chandrabhas; Peter, Sebastian C. (American Chemical Society, 2016)

We have demonstrated engineering of the electronic band gap of the hybrid materials based on POMs (polyoxometalates), by controlling its structural complexity through variation in the conditions of synthesis. The pH- and ...
The crystal structure and magnetic properties of a Zintl phase EuIrIn4: the first member of the Eu-Ir-In in family

Sarkar, Sumanta; Gutmann, Matthias J.; Peter, Sebastian C. (Royal Society of Chemistry, 2014)

The indium-rich intermetallic compound EuIrIn4 was synthesized using indium as the active metal flux. The crystal structure of EuIrIn4 was investigated by X-ray powder and single crystal diffraction. EuIrIn4 crystallizes ...
Crystal structure and properties of tetragonal EuAg4In8 grown by metal flux technique

Subbarao, Udumula; Sarkar, Sumanta; Peter, Sebastian C. (Academic Press Inc, Elsevier Science, 2015)

The compound EuAg4In8 has been obtained as single crystals in high yield from reactions run in liquid indium. X-ray diffraction on single crystals suggests that EuAg4In8 crystallizes in the CeMn4Al8 structure type, tetragonal ...
Crystal structure of Yb2CuGe6 and Yb3Cu4Ge4 and the valency of ytterbium

Peter, Sebastian C.; Subbarao, Udumula; Sarkar, Sumanta; Vaitheeswaran, G.; Svane, Axel; Kanatzidis, Mercouri G. (Elsevier Science Sa, 2014)

The Yb2CuGe6 and Yb3Cu4Ge4 compounds were synthesized from reaction mixtures using indium as flux. Both powder and single crystal X-ray diffraction data were used to refine the crystal structures. Yb2CuGe6 crystallizes in ...
Effect of Li and Mg substitution on the crystal structure and magnetism of the REGa2 (RE = Ce and Eu) and EuGa4 compounds

Iyer, Abishek K.; Balisetty, Lahari; Sarkar, Sumanta; Peter, Sebastian C. (Elsevier Science Sa, 2014)

The compounds CeGa2, Ce0.82Mg0.50Ga1.68, Eu(Mg/Li)(x)Ga2-x (0 <= x <= 0.4) and Eu(Mg/Li)(x)Ga4-x(0 <= x <= 0.73) were synthesized and characterized by X-ray diffraction. CeGa2 and Ce0.82Mg0.50Ga1.68 crystallize in the AlB2 ...
Effect of ordered and disordered phases of unsupported Ag3In nanoparticles on the catalytic reduction of p-nitrophenol

Sarkar, Sumanta; Balisetty, Lahari; Shanbogh, Pradeep P.; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2014)

A detailed study has been done on the combined effect of the reaction time and the effect of surfactants namely, polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide in the formation of ordered (Ag3In) and disordered ...
Electrochemical Dealloying of PdCu3 Nanoparticles to Achieve Pt-like Activity for the Hydrogen Evolution Reaction

Jana, Rajkumar; Bhim, Anupam; Bothra, Pallavi; Pati, Swapan Kumar; Peter, Sebastian C. (Wiley-V C H Verlag Gmbh, 2016)

Manipulating the d-band center of the metal surface and hence optimizing the free energy of hydrogen adsorption (G(H)) close to the optimal adsorption energy (G(H)=0) for hydrogen evolution reaction (HER), is an efficient ...
Enhanced Air Stability in REPb3 (RE = Rare Earths) by Dimensional Reduction Mediated Valence Transition

Subbarao, Udumula; Sarkar, Sumanta; Jana, Rajkumar; Bera, Sourav S.; Peter, Sebastian C. (American Chemical Society, 2016)

We conceptually selected the compounds REPb3 (RE = Eu, Yb), which are unstable in air, and converted them to the stable materials in ambient conditions by the chemical processes of "nanoparticle formation" and "dimensional ...
Flux Growth of Yb6.6Ir6Sn16 Having Mixed-Valent Ytterbium

Peter, Sebastian C.; Subbarao, Udumula; Rayaprol, Sudhindra; Martin, Joshua B.; Balasubramanian, Mahalingarn; Malliakas, Christos D.; Kanatzidis, Mercouri G. (American Chemical Society, 2014)

The compound Yb6.6Ir6Sn16 was obtained as single crystals in high yield from the reaction of Yb with Ir and Sn run in excess indium. Single-crystal X-ray diffraction analysis shows that Yb6.6Ir6Sn16 crystallizes in the ...
The germanides ScTGe (T = Co, Ni, Cu, Ru, Rh, Pd, Ag, Ir, Pt, Au) - Structure and Sc-45 solid state NMR spectroscopy

Heying, Birgit; Hayerkamp, Sandra; Rodewald, Ute Ch; Eckert, Hellmut; Peter, Sebastian C.; Poettgen, Rainer (Elsevier Science Bv, 2015)

The germanides ScTGe (T = Co, Ni, Cu, Ru, Rh, Pd, Ag, Ir, Pt, Au) were obtained in X-ray pure form by arcmelting of the elements. The structures of the members with T = Co, Ni, Cu, Rh, Pd, Ag, Ir, and Pt were refined on ...
Heterostructure composites of rGO/GeO2/PANI with enhanced performance for Li ion battery anode material

Sarkar, Sumanta; Borah, Rohan; Santhosha, A. L.; Dhanya, R.; Narayana, Chandrabhas; Bhattacharyya, Aninda J.; Peter, Sebastian C. (Elsevier Science Bv, 2016)

A novel solvothermal method has been used for the synthesis of porous ellipsoidal GeO2 particles with oleic acid and oleylamine as solvent and co-surfactant, respectively and its performance has been studied as an anode ...
Layer specific optical band gap measurement at nanoscale in MoS2 and ReS2 van der Waals compounds by high resolution electron energy loss spectroscopy

Dileep, K.; Sahu, R.; Sarkar, Sumanta; Peter, Sebastian C.; Datta, Ranjan (American Institute Physics, 2016)

Layer specific direct measurement of optical band gaps of two important van der Waals compounds, MoS2 and ReS2, is performed at nanoscale by high resolution electron energy loss spectroscopy. For monolayer MoS2, the twin ...
Ligand mediated valence fluctuation of copper in new hybrid materials constructed from decavanadate and a Cu(1,10-phenanthroline) complex

Iyer, Abishek K.; Roy, Soumyabrata; Haridasan, Remesh; Sarkar, Sumanta; Peter, Sebastian C. (Royal Society of Chemistry, 2014)

Two new organic hybrid materials [H4V10O28][CuCl(Hn(2)O)2(1,10-phenanthroline)](2)center dot 4H(2)O (V10O28-CuCl-phen) and [H4V10O28][Cu(H2O)3(1,10-phenanthroline)](2)center dot 4H(2)O (V10O28-CuO-phen) were synthesized ...
Magnetic and X-ray absorption studies on the RE5X2Sb6 (RE = Eu, Yb; X = Al, Ga, In) compounds

Subbarao, Udumula; Sarkar, Sumanta; Joseph, Boby; Peter, Sebastian C. (Elsevier Science Sa, 2016)

The compounds Eu5In2Sb6 and Yb5X2Sb6 ( X = Al, Ga and In) have been synthesized by high frequency induction heating method. The compounds Eu5In2Sb6 and Yb5X2Sb6 crystallize respectively in the orthorhombic Ca5Ga2As6 and ...
Mixed valence and metamagnetism in a metal flux grown compound Eu2Pt3Si5

Sarkar, Sumanta; Subbarao, Udumula; Joseph, Boby; Peter, Sebastian C. (Academic Press Inc, Elsevier Science, 2015)

A new compound Eu2Pt3Si5 with plate shaped morphology has been grown from excess In flux. The compound crystallizes in the orthorhombic U2CO3Si5 structure type, 1bam space group and the lattice parameters are a=10.007(2) ...
Neutron diffraction studies on structural and magnetic properties of RE2NiGe3 (RE=La, Ce)

Kalsi, Deepti; Rayaprol, S.; Siruguri, V.; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2014)

We report the crystallographic properties of RE(2)NiG(e)3 (RE=La, Ce) synthesized by arc melting. Rietveld refinement on the powder neutron diffraction (ND) data suggest both compounds are isostructural and crystallize in ...
Nickel-antimony nanoparticles confined in SBA-15 as highly efficient catalysts for the hydrogenation of nitroarenes

Marakatti, Vijaykumar S.; Peter, Sebastian C. (Royal Society of Chemistry, 2016)

NiSb nanoparticles confined in SBA-15 are found to be highly efficient catalysts for nitroarene reduction reactions. The NiSb/SBA-15 catalysts with different chemical compositions were prepared using an adsorption-reduction ...
One-pot solvothermal synthesis of ordered intermetallic Pt2In3 as stable and efficient electrocatalyst towards direct alcohol fuel cell application

Jana, Rajkumar; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2016)

Ordered intermetallic Pt2In3 nanoparticles have been synthesized by superhydride reduction of K2PtCl4 and InCl3 center dot xH(2)O precursors using facile, one-pot solvothermal method. We report surfactant free solvothermal ...
Pressure-induced electronic topological transition in Sb2S3

Sorb, Y. A.; Rajaji, V.; Malavi, P. S.; Subbarao, U.; Halappa, P.; Peter, Sebastian C.; Karmakar, S.; Narayana, Chandrabhas (IoP Publishing Ltd, 2016)

We report the high-pressure vibrational properties and a pressure-induced electronic topological transition in the wide bandgap semiconductor Sb2S3 (E-g = 1.7-1.8 eV) using Raman spectroscopy, resistivity and x-ray diffraction ...

Now showing items 1-20 of 31

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