01958nas a2200229   4500008004100000022001400041245011700055210006900172260009200241300001400333490000600347520110700353653002301460653002001483653001601503653000801519100002001527700002001547700001901567700001801586856012401604       2006                        eng d  a1533-488000aDirect synthesis of nanocrystalline silver from the reaction between silver carboxylates and n-trioctylphosphine0 aDirect synthesis of nanocrystalline silver from the reaction bet  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScJUL  a2095-21020 v63 a<p>Neat n-Trioctylphosphine (TOP) has been used for the first ever time for reduction of silver nitrate and silver carboxylates (citrate, oleate, and myristate) under mild thermal reaction conditions. UV-visible absorption measurements of re-dispersible silver particles that were obtained by reduction of silver myristrate (product-IV) and silver nitrate (product-I) showed surface plasmon resonance absorption peak at 400 nm. The powder XRD pattern of fcc zero-valent silver resulted in diameters in the range of about 25-30 nm. TEM analysis showed particle diameter similar to that was observed by the XRD. FTIR spectroscopy revealed that the organics from the carboxylate group are retained by the nano-particles in case of product-IV however, presence of TOP is observed in product-I. It is found that when silver nitrate is reduced by TOP, spherical silver nano-particles with poor redispersity are formed but extended heating results in formation of long silver rods of micrometer size however, the re-dispersible nano-particles are easily formed when silver carboxylates are reduced by TOP.</p>10aChemical synthesis10aNanocrystalline10anoble metal10aXRD1 aCharan, Shobhit1 aSingh, Narendra1 aKhanna, P., K.1 aPatil, K., R.  uhttps://library.ncl.res.in/content/direct-synthesis-nanocrystalline-silver-reaction-between-silver-carboxylates-and-n-002131nas a2200241   4500008004100000022001400041245010800055210006900163260007300232300001400305490000700319520127900326653002301605653001801628653001801646653000801664100002001672700002001692700001801712700002201730700001901752856011801771       2006                        eng d  a0167-577X00aUnusual formation of nano-particles of CdO and Cd(OH)(2) from the reaction of dimethyl cadmium with DMF0 aUnusual formation of nanoparticles of CdO and CdOH2 from the rea  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC  a3492-34980 v603 a<p>This paper presents generation of CdO and Cd(OH)(2) nano-particles from Dimethyl Cadmium in DMF. The CdO nano-particles were obtained instead of CdSe, even when the reaction was done in presence of 1,2,3-selenadiazole (the source of selenium) with Me2Cd in DMF (product-I). The direct reaction of Me2Cd in DMF also leads to formation of CdO (product-II). However, Cd(OH)(2) nano-particles were obtained when Me2Cd was refluxed in DMF for a few hours followed by reaction of H2S gas (product-III). The formation of Cd(OH)(2) was also established via decomposition Of Me2Cd:Et2O adduct (product-IV). Nano-particles of CdO and Cd(OH)(2) (product-I to product-IV) were characterized by X-ray powder diffraction (XRD), TEM and SEM/EDS measurements, FTIR, thermal analysis (TGA) and XPS analysis. The particle size of all the products as calculated by XRD patterns were in the range of about 20 nm. TEM images showed that the products are agglomerated clusters with the particles in the nano-meter regime. The synthesis however, is understood to be unusual as the reactions with selenium source and sulfur source should have generated the CdSe and CdS however, the end products were always found to be the product-I to product-IV (c) 2006 Elsevier B.V. All rights reserved.</p>10aChemical synthesis10aNanoparticles10aSemiconductor10aXRD1 aSingh, Narendra1 aCharan, Shobhit1 aPatil, K., R.1 aViswanath, A., K.1 aKhanna, P., K.  uhttps://library.ncl.res.in/content/unusual-formation-nano-particles-cdo-and-cdoh2-reaction-dimethyl-cadmium-dmf-001799nas a2200229   4500008004100000022001400041245009900055210006900154260007400223300001200297490000700309520099100316653001901307653001901326653002501345653001401370653000801384100001401392700001901406700002501425856011901450       2009                        eng d  a1388-076400aSolid state synthesis and room temperature magnetic properties of iron phosphide nanoparticles0 aSolid state synthesis and room temperature magnetic properties o  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcFEB  a491-4970 v113 a<p>Room temperature magnetic properties have been achieved for nano-crystalline iron phosphide synthesized from the direct solid state reaction of iron chloride and tri-octylphosphine (TOP). The magnetization continuously increased with higher magnetic fields, indicating a super-paramagnetic behavior. It is observed that room temperature magnetism is possible for the material showing antiferromagnetic nature at low temperatures. In the present synthesis, TOP acted as a source of phosphorus as well as a surfactant. X-ray diffraction (XRD) studies revealed that the black powder is a mixture of FeP and Fe(2)P. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed elongated as well spherical particles. Energy dispersion X-ray analysis (EDAX) confirmed a non-stoichiometric iron phosphide. Presence of TOP was confirmed by infra-red (IR) spectroscopy, and thermo-gravimetric analysis (TGA) indicated about 6% wt. loss due to presence of organics.</p>10aIron phosphide10aSemiconductors10aSolid state reaction10asynthesis10aXRD1 aSingh, N.1 aKhanna, P., K.1 aJoy, Pattayil, Alias  uhttps://library.ncl.res.in/content/solid-state-synthesis-and-room-temperature-magnetic-properties-iron-phosphide-001689nas a2200241   4500008004100000022001400041245010100055210006900156260009500225300001400320490000700334520080100341653002301142653001901165653001401184653002101198653000801219100001901227700002001246700003001266700001901296856013201315       2011                        eng d  a1533-488000aGlycerol mediated low temperature synthesis of nickel nanoparticles by solution reduction method0 aGlycerol mediated low temperature synthesis of nickel nanopartic  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScJUN  a5131-51360 v113 a<p>Phase pure Nickel nano-particles were synthesized by in-situ generation of nickel hydrazine hydrate complex (Ni-HH) followed by its decomposition in an alkaline glycerol medium. The synthesis can be performed in an open beaker with or without the use of surface protective reagents. By using the present method, Ni nano-particles can be prepared in large scale. The black nano-powders so-obtained were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infra-red (FTIR) spectroscopy and thermal analysis (TGA). XRD and SAED analysis revealed that the synthesized particles were pure crystalline nickel with FCC structure.</p>10aChemical Reduction10aNano-Particles10asynthesis10aTransition Metal10aXRD1 aSingh, Kalpana1 aKate, Kunal, H.1 aChilukuri, V., V. Satayan1 aKhanna, P., K.  uhttps://library.ncl.res.in/content/glycerol-mediated-low-temperature-synthesis-nickel-nanoparticles-solution-reduction-method-0