Indian Science Technology and Engineering facilities Map
 
Supplier Map
Service Map

Patents

Patent Details

Applicant:
Indian Institute of Technology (IIT) Roorkee 
Title:
Synthesis of seed mediated bimetallic nanocomposites by metal based redox reaction 
Inventor(s):
Kalyan Kumar Sadhu and Shahbaz Ahmad Lone  
Application type:
Applied - 2017-07-10 
Application Number:
201711024170 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Roorkee 
Abstract:
Gold nanoparticle as seed can develop the different size nanoparticles by the reduction of chlroauric acid via hydroquinone based reduction method. This synthetic route was modified for the fine tuning in the seeded growth of the nanoparticles.Gold based metal alloys have been synthesized with heating the reaction mixture by heating on or above 150 °C. Seed mediated syntheses of the gold nanoparticles with different sizes are also known in literature. We targeted to develop an alternative synthetic route of mixed metal nanomaterials at room temperature. In our approach, we have introduced gold nanoparticle as seed to prepare gold-metal oxide nanocomposites with variable ratio of metals content. We have developed a new synthetic methodology for gold-metal oxide nanomaterials at room temperature. We have found three different conditions to vary the composition of mixed metal contents in the nanocomposites. This synthetic methodology was applied to develop the mixed metal magnetic nanocomposites with gold and iron. The gold-iron oxide based materials show exchange bias at low temperature. This exchange bias property might be useful for the memory device.  

 
THE VISION
THE MISSION
ABOUT I-STEM
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work
read more >>

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
read less <<
Visitor Hit Counter
Hosted at Indian Institute of Science
Copyright © 2024 I-STEM. All rights reserved.
Audited by: STQC Bengaluru.