Structural, spectroscopic and optical properties of pure and gadolinium doped neodymium phosphate nanoparticles prepared using wet chemical route

2017 ◽  
Vol 184 (1) ◽  
pp. 199-209 ◽  
Author(s):  
Bindu Raina ◽  
Seema Verma ◽  
Vandana Gupta ◽  
K. K. Bamzai
RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 23101-23113 ◽  
Author(s):  
Samapti Kundu ◽  
Sumanta Sain ◽  
Biswarup Satpati ◽  
Satya Ranjan Bhattacharyya ◽  
Swapan Kumar Pradhan

ZnO nanorods are synthesized at room temperature through a simple chemical process without using any template or capping agent.


Author(s):  
Pratibha L. Gai ◽  
M. A. Saltzberg ◽  
L.G. Hanna ◽  
S.C. Winchester

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.


2021 ◽  
Vol 602 ◽  
pp. 412574
Author(s):  
Tahira Akhter ◽  
Muhammad Asif Yousuf ◽  
Muhammad Asghar ◽  
Ibrahim A. Alsafari ◽  
Akmal Jamil ◽  
...  

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