Luminescence and absorbance of highly crystalline CaMoO4, SrMoO4, CaWO4 and SrWO4 nanoparticles synthesized by co-precipitation method at room temperature

2010 ◽  
Vol 506 (1) ◽  
pp. 475-481 ◽  
Author(s):  
Titipun Thongtem ◽  
Sukjit Kungwankunakorn ◽  
Budsabong Kuntalue ◽  
Anukorn Phuruangrat ◽  
Somchai Thongtem
Keyword(s):  
Room Temperature ◽  
Precipitation Method ◽  
Co Precipitation

Preparation and Electrochemical Performance of Mn3O4/GR Composites Electrode Material in Supercapacitors

2019 ◽  
Vol 807 ◽  
pp. 50-56
Author(s):  
Yun Long Zhou ◽  
Zhi Biao Hu ◽  
Li Mei Wu ◽  
Jiao Hao Wu
Keyword(s):  
Room Temperature ◽  
Raw Materials ◽  
Precipitation Method ◽  
Electrochemical Performances ◽  
Manganese Sulfate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Co Precipitation ◽  
A Current ◽  
Discharge Test

Using hydrated manganese sulfate and general type graphene (GR) as raw materials, Mn3O4/GR composite has been successfully prepared by the liquid phase chemical co-precipitation method at room temperature. X-ray diffraction (XRD) was used to investigate the phase structure of Mn3O4powder and Mn3O4/GR composite; The electrochemical performances of the samples were elucidated by cyclic voltammetry and galvanostatic charge-discharge test in 0.5 mol/L Na2SO4electrolyte. The results show that the Mn3O4/GR composite possesses graphene phase and good reversibility; the composite also displays a specific capacitance of 318.8 F/g at a current density of 1 A/g.

Microstructural and Magnetic Studies on Calcined Ni-Zn Ferrite Powders Prepared by Chemical Co-Precipitation Method

2011 ◽  
Vol 264-265 ◽  
pp. 524-529
Author(s):  
I.Z. Rahman ◽  
T.T. Ahmed
Keyword(s):  
Room Temperature ◽  
Magnetic Measurements ◽  
Precipitation Method ◽  
Particle Sizes ◽  
Magnetic Studies ◽  
Zn Ferrite ◽  
Different Temperatures ◽  
Bet Technique ◽  
Co Precipitation ◽  
Cation Distributions

In this paper, we report on structural and magnetic properties of NiZn ferrite powders prepared by chemical co-precipitation method and calcined at different temperatures. Structural, topological and compositional analyses were performed by XRD, SEM, AFM and EDX techniques. The cation distributions in Ni0.8Zn0.2Fe2O4 ferrites were investigated by XPS (Al K radiation: h=1486.6 eV). Particle sizes were measured using AFM techniques and results were compared with BET technique and magnetic measurements were carried out using a vibrating sample magnetometer at room temperature.

Synthesis and Characterization of Nano Crystalline Hydroxyapatite Spheroids Using Anionic Template for Bio Applications

2011 ◽  
Vol 493-494 ◽  
pp. 723-727
Author(s):  
P.Michael SL Shanthi ◽  
M. Ashok ◽  
R.V. Mangalaraja ◽  
T. Balasubramanian
Keyword(s):  
Size Distribution ◽  
Room Temperature ◽  
Precipitation Method ◽  
Uniform Size ◽  
Nano Crystalline ◽  
Co Precipitation ◽  
Anionic Template ◽  
Template Material ◽  
Good Agreement

Nano crystalline Hydroxyapatite (HAp) spheroids of uniform size distribution of diameter ~200 nm have been prepared by co-precipitation method at room temperature. The anionic surfactant SDS has been used as the template material. The calcinated samples were subjected to FTIR and XRD characterizations to confirm the phase of HAp. The Ca/P ratio that has been measured from the EDS spectrum 1.69 has good agreement with the theoretical value. The SEM and TEM images reveal the nano spherical nature and narrow size distribution of the HAp particles, which were good candidates for drug delivery applications.

Sodium chromium hexacyanoferrate as a potential cathode material for aqueous sodium-ion batteries

2019 ◽  
Vol 55 (97) ◽  
pp. 14633-14636 ◽  
Author(s):  
Dominika Baster ◽  
Emad Oveisi ◽  
Pierre Mettraux ◽  
Surbhi Agrawal ◽  
Hubert H. Girault
Keyword(s):  
Cathode Material ◽  
Room Temperature ◽  
Sodium Ion ◽  
Precipitation Method ◽  
Sodium Ion Batteries ◽  
Aqueous Sodium ◽  
Co Precipitation

Sodium chromium hexacyanoferrate (NaCrHCF) is obtained here using a facile co-precipitation method at room temperature.

Room temperature ferromagnetism in Ist group elements codoped ZnO:Fe nanoparticles by co-precipitation method

2016 ◽  
Vol 487 ◽  
pp. 102-108 ◽  
Author(s):  
V. Pazhanivelu ◽  
A. Paul Blessington Selvadurai ◽  
R. Kannan ◽  
R. Murugaraj
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Precipitation Method ◽  
Co Precipitation

Effect of PEG on Structural and Magnetic Properties of Mn Doped ZnO Nanocrystals

2013 ◽  
Vol 678 ◽  
pp. 234-238 ◽  
Author(s):  
Vishwanath D. Mote ◽  
Babasaheb N. Dole
Keyword(s):  
Room Temperature ◽  
Magnetic Hysteresis ◽  
Lattice Parameters ◽  
Precipitation Method ◽  
Average Crystalline Size ◽  
X Ray ◽  
Zno Nanocrystals ◽  
Doped Zno ◽  
Co Precipitation ◽  
Mn Doped

Nanosized Mn doped ZnO samples were synthesized by co-precipitation method using Polyethylene glycol (PEG) as a capping agent. X- ray diffraction patterns confirm that the pure and Mn doped ZnO nanocrystals have wurtzite structure without any seconadary phases. Lattice parameters of pure and Mn doped ZnO nanocrystals increase slightly with increasing Mn concentration. The average crystalline size of pure and Mn doped ZnO nanocrystals are in the range of 14-18 nm. The X-ray density for pure and Mn doped ZnO sample is calculated using lattice parameters. It is found that almost static for Mn doped ZnO samples. In the Zn1-xMnx samples, room temperature magnetic hysteresis is observed and the saturation magnetization increases with increasing Mn content. However, these samples show room temperature ferromagnetic in nature. Result of the present investigation compared without PEG.

Tuning the Magnetic Properties of Iron Oxide Nanoparticles by a Room-Temperature Air-Atmosphere (RTAA) Co-Precipitation Method

2015 ◽  
Vol 15 (5) ◽  
pp. 3870-3878 ◽  
Author(s):  
S. Vikram ◽  
M. Dhakshnamoorthy ◽  
R. Vasanthakumari ◽  
A. R. Rajamani ◽  
Murali Rangarajan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Room Temperature ◽  
Precipitation Method ◽  
Oxide Nanoparticles ◽  
Air Atmosphere ◽  
Co Precipitation

Synthesis of TlBr powder for preparation of room temperature radiation detectors by co-precipitation method

2010 ◽  
Vol 175 (1) ◽  
pp. 65-69
Author(s):  
Lin Quan ◽  
Shuping Gong ◽  
Jianqiao Liu ◽  
Fang Meng ◽  
Dongxiang Zhou ◽  
...  
Keyword(s):  
Room Temperature ◽  
Radiation Detectors ◽  
Precipitation Method ◽  
Temperature Radiation ◽  
Co Precipitation

Preparation of Co0.5Zn0.5Fe2O4 and Co0.5Mn0.5Fe2O4 Nanoferrites by Co-Precipitation Method

2012 ◽  
Vol 620 ◽  
pp. 7-11
Author(s):  
Abdollah Javidan ◽  
Mir Hassan Hosseini ◽  
S.L. Shaifi
Keyword(s):  
Sodium Hydroxide ◽  
Zinc Ferrite ◽  
Room Temperature ◽  
Sem Analysis ◽  
Precipitation Method ◽  
Manganese Ferrite ◽  
Frequency Range ◽  
Calcination Process ◽  
Co Precipitation ◽  
Cobalt Zinc Ferrite

Nanoparticles of Cobalt-zinc ferrite (Co0.5Zn0.5Fe2O4) and Cobalt-manganese ferrite (Co0.5Mn0.5Fe2O4) have been synthesized at room temperature by co-precipitation method with and without calcination process. Starting materials for preparation of nanooxides were Co (NO3)2.6H2O, ZnCl2, Fe (NO3)3.9H2O and Mn (NO3)2.4H2O. These salats were mixed in stoichiometric amounts and precipitated with sodium hydroxide. Synthesised materials are confirmed by XRD and SEM analysis. The FTIR spectra of nanooxides have been analyzed in the frequency range of 400-4000cm-1.

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