Effect of Transition Metal (Fe, Co) Doping in NiO Nanostructures Prepared By A Wet Chemical Route

2011 ◽  
Author(s):  
A. K. Mishra ◽  
D. Das ◽  
Alka B. Garg ◽  
R. Mittal ◽  
R. Mukhopadhyay
Keyword(s):  
Transition Metal ◽  
Chemical Route ◽  
Co Doping ◽  
Wet Chemical ◽  
Wet Chemical Route

A comparative study on photocatalytic activities of various transition metal oxides nanoparticles synthesized by wet chemical route

2021 ◽  
Vol 211 ◽  
pp. 181-195
Author(s):  
Muhammad Farooq Warsi ◽  
Nusrat Shaheen ◽  
Muhammad Ilyas Sarwar ◽  
Philips O. Agboola ◽  
Imran Shakir ◽  
...  
Keyword(s):  
Transition Metal ◽  
Comparative Study ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Chemical Route ◽  
Photocatalytic Activities ◽  
Wet Chemical ◽  
Wet Chemical Route

Structural, optical and magnetic properties of Co-doped ZnO nanoparticles prepared via a wet chemical route

2014 ◽  
Vol 28 (25) ◽  
pp. 1450158 ◽  
Author(s):  
Javed Iqbal ◽  
Raheel Ahmed Janjua ◽  
Tariq Jan
Keyword(s):  
Zno Nanoparticles ◽  
Room Temperature Ferromagnetism ◽  
Secondary Phase ◽  
Band Gap Energy ◽  
Linear Increase ◽  
Sem Images ◽  
Chemical Route ◽  
Co Doping ◽  
Wet Chemical ◽  
Wet Chemical Route

In this paper, ZnO nanoparticles doped with varying amount of Co content (i.e., 0, 2, 4, 6, 8, and 10 at.%) have been prepared by wet chemical route. X-ray diffraction (XRD) results reveal the successful substitution of Co 2+ ions on to sites of Zn 2+ ions without forming any secondary phase. Furthermore, a linear increase in d-spacing of the ZnO lattice is found with the increase in Co content. SEM images demonstrate the formation of homogeneously distributed spherical nanoparticles with average size of 50–70 nm. It is observed from optical investigations that band gap energy of ZnO nanoparticles significantly decreased with the increase in Co doping level. Interestingly, it is found that the high Co dopant concentration can lead to room temperature ferromagnetism in ZnO nanoparticles.

Structures of chemically stabilized ceramics

1993 ◽  
Vol 51 ◽  
pp. 924-925
Author(s):  
Pratibha L. Gai ◽  
M. A. Saltzberg ◽  
L.G. Hanna ◽  
S.C. Winchester
Keyword(s):  
High Temperature ◽  
Calcium Nitrate ◽  
Nitrate Hexahydrate ◽  
Chemical Route ◽  
Cubic Form ◽  
Tetragonal Form ◽  
Wet Chemical ◽  
Wet Chemical Route ◽  
Final Composition ◽  
Aluminium Nitrate Nonahydrate

Silica based ceramics are some of the most fundamental in crystal chemistry. The cristobalite form of silica has two modifications, α (low temperature, tetragonal form) and β (high temperature, cubic form). This paper describes our structural studies of unusual chemically stabilized cristobalite (CSC) material, a room temperature silica-based ceramic containing small amounts of dopants, prepared by a wet chemical route. It displays many of the structural charatcteristics of the high temperature β-cristobalite (∼270°C), but does not undergo phase inversion to α-cristobalite upon cooling. The Structure of α-cristobalite is well established, but that of β is not yet fully understood.Compositions with varying Ca/Al ratio and substitutions in cristobalite were prepared in the series, CaO:Al2O3:SiO2 : 3-x: x : 40, with x= 0-3. For CSC, a clear sol was prepared from Du Pont colloidal silica, Ludox AS-40®, aluminium nitrate nonahydrate, and calcium nitrate hexahydrate in proportions to form a final composition 1:2:40 composition.

Structural, spectral, electrical and magnetic parameters evaluation of Er3+-substituted Ni0·8Zn0·2Fe2O4 nanoparticles synthesized by wet chemical route

2021 ◽  
Vol 602 ◽  
pp. 412574
Author(s):  
Tahira Akhter ◽  
Muhammad Asif Yousuf ◽  
Muhammad Asghar ◽  
Ibrahim A. Alsafari ◽  
Akmal Jamil ◽  
...  
Keyword(s):  
Chemical Route ◽  
Magnetic Parameters ◽  
Wet Chemical ◽  
Wet Chemical Route

Synthesis and characterization of Li1.3Al0.3Ti1.7(PO4)3-coated LiMn2O4 by wet chemical route

Rare Metals ◽  
2009 ◽  
Vol 28 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Xianming Wu ◽  
Runxiu Li ◽  
Shang Chen ◽  
Zeqiang He
Keyword(s):  
Synthesis And Characterization ◽  
Chemical Route ◽  
Wet Chemical ◽  
Wet Chemical Route

Band gap engineering and enhanced photoluminescence of Mg doped ZnO nanoparticles synthesized by wet chemical route

2015 ◽  
Vol 161 ◽  
pp. 275-280 ◽  
Author(s):  
Mohd. Arshad ◽  
Mohd. Meenhaz Ansari ◽  
Arham S. Ahmed ◽  
Pushpendra Tripathi ◽  
S.S.Z. Ashraf ◽  
...  
Keyword(s):  
Band Gap ◽  
Zno Nanoparticles ◽  
Chemical Route ◽  
Band Gap Engineering ◽  
Enhanced Photoluminescence ◽  
Wet Chemical ◽  
Wet Chemical Route ◽  
Doped Zno ◽  
Mg Doped
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