IR @ Goa University

Browsing by Author "Salker, A.V."

Browsing by Author "Salker, A.V."

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  • Synthesis, Characterization and Catalytic Oxidation Reactions Over Selected Perovskites 
    Vaz, Teotone
  • Synthesis, characterization and photocatalytic studies of some metal phthalocyanines 
    Borker, P.; Salker, A.V. (Indian Journal of Chemical Technology. 13(4); 2006; 341-346.)
    Metal phthalocyanines (MPc) (M = Cu, Ni, Co and Fe) have been synthesized and characterized by XRD, IR, ESR and thermal technique. The solid state studies such as magnetic susceptibility, electrical resistivity and electron ...
  • Synthesis, purification and thermal behaviour of sulfonated metalloporphyrins 
    Gokakakar, S.D.; Salker, A.V. (Journal of Thermal Analysis and Calorimetry. 109(3); 2012; 1487-1492.)
    A free-base tetra sodium meso-tetra (p-sulphonatophenyl) porphyrin (TPPS4) and its corresponding metalloporphyrins (MTPPS4), where M = Co, Ni and Zn were synthesized and characterized by UV-visible spectroscopy, infra red ...
  • A systematic study of cobalt doped In sub(2)O sub(3) nanoparticles and their applications 
    Naik, M.Z.; Salker, A.V. (Materials Research Innovations. 21(4); 2016; 237-243.)
    An assortment of various properties of Cobalt (Co)-doped In sub(2)O sub(3) nanoparticles has been presented. Nanoparticles in the range 15–25 nm have been prepared by a solution combustion method. Thermal analysis (TG–DSC) ...
  • Tailoring magnetic and dielectric properties of Co sub(0.9)Cu sub(0.1)Fe sub(2)O sub(4) with substitution of small fractions of Gd sup(3+) ions 
    Naik, C.C.; Salker, A.V. (Journal of Materials Science: Materials in Electronics. 29(7); 2018; 5380-5390.)
    This paper describes the structural, magnetic, and dielectric properties of Gd sup(3+) substituted cobalt–copper ferrite. The influence of Gd3+ substitution on the structural, magnetic and electrical properties of cobalt–copper ...
  • Tailoring the super-paramagnetic nature of MgFe(2)O(4) nanoparticles by In sup(3+) incorporation 
    Naik, M.Z.; Salker, A.V. (Materials Science and Engineering. B. 211; 2016; 37-44.)
    MgFe(1−x)In(x)O(4) nanoparticles (where x = 0.00, 0.04, 0.08, 0.12 and 0.16) have been prepared by sol-gel method using citric acid. The appearance of two distinct bands corresponding to tetrahedral and octahedral occupied ...
  • Thermal and electrical studies of doped Indium oxide nanoparticles 
    Naik, M.Z.; Salker, A.V. (19. Symp. and Workshop Proc. on Thermal Analysis (THERMANS-2013). DAE-BRNS; Indian Thermal Analysis Society, Bhabha Atomic Research Centre, Trombay, Mumbai. 2013; 510-515.)
    In the present work pristine and transition metal (Co, Cr) doped indium oxide nanoparicles are prepared by combustion method using glycine as a fuel. The initial precursors were characterised by TG/DSC which shows the ...
  • Thermal studies of cobalt, iron and tin metalloporphyrins 
    Gokakakar, S.D.; Salker, A.V. (Journal of Thermal Analysis and Calorimetry. 101(3); 2010; 809-813.)
    A free-base tetraphenyl porphyrin (TPP) and its corresponding metalloporphyrins (MTPP) where M = Co, Fe and Sn were synthesized and characterized by UV-visible spectroscopy, FTIR and (1)Hnmr spectroscopy. Thermal studies ...
  • Thermal studies of free base and metalloporphyrins 
    Gokakakar, S.D.; Ajikumar, P.K.; Tyagi, A.K.; Salker, A.V. (Proc. Symp. on Thermal Analysis, IGCAR, Kalpakam, 4-6 Feb 2008 [Thermans 2008]. 2008; 224-225.)
    Tetraphenyl porphyrin (TPP) and Metalloporphyrins (MTPP) were synthesized, where M = Cu and Fe. These compounds were characterized by UV-Visible spectrophotometry, FTIR spectrophotometry, and 1Hmr spectroscopy. Thermal ...
  • Thermal studies of metalloporphyrins with metals in different oxidation states 
    Gokakakar, S.D.; Salker, A.V. (Journal of Thermal Analysis and Calorimetry. 112(1); 2013; 11-15.)
    A precursor of non-aqueous porphyrins such as tetraphenyl porphyrin was synthesized and metallated with Ag, Mn and Sn to get respective metalloporphyrins. Further, they were characterized by UV-Vis spectroscopy, IR ...
  • Thermal studies of some metal porphins 
    Gokakakar, S.D.; Salker, A.V. (Thermans-2006. 2006; 394-395.)
    Tetraphenyl Porphin (TPP) and M-TPP (Where M= Co, Ni and Zn). were synthesized and characterized by UVVisible spectroscopy. Thermal studies were carried out using DTA-TG techniques in synthetic air from room temperature ...
  • Thermal studies of some non-aqueous and aqueous porphyrins 
    Gokakakar, S.D.; Salker, A.V. (20. Symposium and Workshop on Thermal Analysis (Thermans 2016). 18-20 Jan 2016. 2016; 9pp.)
    A precursor of non-aqueous porphyrin i.e. a free-base tetra phenyl porphyrin (TPP) was synthesized. This was then subjected to sulphonation in such a way that sodium salt of sulphonic acid groups were substituted at the ...
  • Thermal studies of some sulphonated metalloporphyrins with di- and trivalent metals 
    Gokakakar, S.D.; Salker, A.V. (19. Symp. and Workshop Proc. on Thermal Analysis (THERMANS-2013). DAE-BRNS; Indian Thermal Analysis Society, Bhabha Atomic Research Centre, Trombay, Mumbai. 2013; 272-277.)
    A precursor of aqueous porphyrins i. e. a free-base tetra sodium meso-tetra (psulphonatophenyl) porphyrin (TPPS4) and its corresponding metalloporphyrins (MTPPS4), where M = Ag, Mn and Fe were synthesized and characterized ...
  • Thick films of In, Bi and Pd metal oxides impregnated in LaCoO3 perovskite as carbon monoxide sensor 
    Salker, A.V.; Choi, N.J.; Kwak, J.H.; Joo, B.S.; Lee, D.D. (Sensors and Actuators B-Chemical. 106(1); 2005; 461-467.)
    Thick films of LaCoO3 perovskite and metal oxides (In, Bi and Pd) impregnated in LaCoO3 have been used as sensor materials for sensing temperature and carbon monoxide gas. LaCoO3 has shown good characteristics of a thermal ...
  • Thick films of LaNiO3 perovskite structure impregnated with ln and Bi oxides as acetonitrile sensor 
    Salker, A.V.; Choi, N.J.; Kwak, J.H.; Lee, D.D. (Journal of the Korean Sensors Society. 13(4); 2004; 143-147.)
    Thick films of having perovskite structure impregnated with indium and bismuth oxides have been used as sensing material for acetonitrile (CH3CN) gas. The sensor response for CH3CN is quite good with an excellent recovery ...
  • Upconversion luminescence of cerium doped CoWO(4) nanomaterials 
    UmaSubramanian; Naik, S.J.; Tangsali, R.B.; Salker, A.V. (Journal of Luminescence. 134; 2013; 464-468.)
    In this paper we report the bluish green upconversion intrinsic photoluminescence (PL) observed at room temperature (RT) 300 K for the nanorange (27-50 nm) Ce3+ doped and undoped CoWO(4) powder samples sintered in air at ...
  • Upconversion photoluminescence of cerium doped cobalt tungstate nano materials 
    UmaSubramanian; Naik, S.J.; Tangsali, R.B.; Salker, A.V. (Proc. Int. Conf. on Nanoscience and Nanotechnology (ICONN 2010). SRM Univ., Chennai. 24-26 Feb 2010. 2010; 115-116)
    In this work nano range C0WO(4) powder samples doped with different concentrations of Ce3+ ions were prepared by coprecipitation method. The samples were also sintered at various temperatures and characterized using ...
  • Vapor phase methylation of phenol on Fe-substituted ZrO2 catalyst 
    Braganza, C.F.; Salker, A.V. (Chinese Journal of Catalysis. 37(11); 2016; 1991-1996.)
    Fe-doped ZrO2 compounds were prepared by a co-precipitation method. The compounds were characterized by X-ray diffraction, N2 adsorption-desorption, ultraviolet diffuse reflectance infrared Fourier transform spectroscopy, ...
  • Variation in the magnetic moment of Indium doped Ce0.1Y2.9Fe5O12 garnet relative to the site inversion 
    Naik, S.R.; Salker, A.V. (Journal of Alloys and Compounds. 600; 2014; 137-145.)
    Prominent changes in magnetic moment has been observed for In3+ doped cubic garnet ferrites prepared by the modified sol-gel auto combustion method. Systematic studies on the structure and magnetic properties have been ...
  • Zeolite supported iron catalyst for nitric oxide reduction by ammonia in the presence of oxygen 
    Salker, A.V. (Indian Journal of Chemical Technology. 11(5); 2004; 683-687.)
    Iron based H-ZSM-5 catalysts were used to study NO reduction with NH3 in the presence of oxygen with and without humid conditions. The iron based H-ZSM-5 was prepared by wet impregnation method and characterized by X-ray ...