scholarly journals Zirconium nanoparticles prepared by the reduction of zirconium oxide using the RAPET method

2011 ◽  
Vol 2 ◽  
pp. 198-203 ◽  
Author(s):  
Michal Eshed ◽  
Swati Pol ◽  
Aharon Gedanken ◽  
Mahalingam Balasubramanian

The aim of the current work is the synthesis and characterization of metallic Zr nanoparticles. The preparation is carried out by using the RAPET method (Reaction under Autogenic Pressure at Elevated Temperatures) developed in our lab. The RAPET reaction of commercial ZrO2 with Mg powder was carried out in a closed stainless steel cell, at 750 °C. On completion of the reaction, the additionally formed MgO is removed by treatment with acid. The characterization of the product was performed by XRD, X-ray absorption spectroscopy, SEM, TEM and elemental analysis. The XRD pattern reveals that the product is composed of pure metallic zirconium, without any traces of the MgO by-product.

2015 ◽  
Vol 44 (5) ◽  
pp. 2052-2056 ◽  
Author(s):  
Meike A. Gotthardt ◽  
Roland Schoch ◽  
Silke Wolf ◽  
Matthias Bauer ◽  
Wolfgang Kleist

A mixed-metal framework Cu–Ru-BTC with the formula Cu2.75Ru0.25(BTC)2·xH2O was successfully synthesized. Partial substitution of Cu2+ by Ru3+ in the paddlewheel structure was proven using X-ray absorption spectroscopy.


2012 ◽  
Vol 174-177 ◽  
pp. 508-511
Author(s):  
Lin Lin Yang ◽  
Yong Gang Wang ◽  
Yu Jiang Wang ◽  
Xiao Feng Wang

BiFeO3 polyhedrons had been successfully synthesized via a hydrothermal method. The as-prepared products were characterized by power X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The possible mechanisms for the formation of BiFeO3 polyhedrons were discussed. Though comparison experiments, it was found that the kind of precursor played a key role on the morphology control of BiFeO3 crystals.


1995 ◽  
Vol 34 (3) ◽  
pp. 343-346 ◽  
Author(s):  
John M. Charnock ◽  
C. David Garner ◽  
Alfred X. Trautwein ◽  
Eckard Bill ◽  
Heiner Winkler ◽  
...  

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