Navigation Links
Titanium dioxide nanoreactor
Date:2/21/2013

This press release is available in German.

Now, Dr. Katja Henzler and a team of chemists at the Helmholtz Centre Berlin have developed a synthesis to produce nanoparticles at room temperature in a polymer network. Their analysis, conducted at BESSY II, Berlin's synchrotron radiation source, has revealed the crystalline structure of the nanoparticles. This represents a major step forward in the usage of polymeric nanoreactors since, until recently, the nanoparticles had to be thoroughly heated to get them to crystallize. The last synthesis step can be spared due to the special environment inside the PNIPAM network.

The Henzler team's polymeric nanoreactors consist of a polystyrene core surrounded by a network of PNIPAM chains. A titanium compound was added to an ethanolic solution of the polymer colloids, which did trigger the formation of small titanium dioxide particles within the PNIPAM network. The BESSY II experiments showed that the chemists were able to control the speed of these processes while at the same time affecting the quality of the nanocrystals that had formed.

Using the novel combination of x-ray microscopy and spectroscopy (NEXAFS-TXM, U41-SGM) at BESSY II, Henzler and the microscopy team were able to show that the nanoparticles are homogeneously distributed over the polymeric nanoreactors. The researchers examined their samples in a cryogenic aqueous environment, which prevents artifact formation due to sample drying. Their analysis showed that the nanoparticles have a crystalline structure. "The nanocrystals have a tetragonal anatase structure and this crystalline structure is a key to their catalytic performance.

Additionally, our new analytic method allows us to control the quality of the synthesized particles so that we can optimize them for relevant applications," says Katja Henzler.


'/>"/>

Contact: Katja Henzler
katja.henzler@helmholtz-berlin.de
49-030-806-243-198
Helmholtz Association of German Research Centres
Source:Eurekalert  

Page: 1

Related biology technology :

1. New Data Shows GeNO LLC Nitric Oxide Delivery System Provided Nitric Oxide With Low Levels of Nitrogen Dioxide for Heart Transplant Patient Evaluation
2. From lemons to lemonade: Using carbon dioxide to make carbon nitride
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Titanium dioxide nanoreactor
(Date:6/26/2017)... Milwaukee, WI (PRWEB) , ... June 26, 2017 , ... ... today in role of Sales Director, focused on leading new business development and ensuring ... 10 years of experience in the food ingredient industry in technical, marketing and sales ...
(Date:6/26/2017)... ... ... Two new members were elected to the University City Science Center’s Board of ... Nowak Strategy and Michele Masucci, Ph.D., Vice President for Research Administration at Temple University. ... L. Kring, and re-election of David P. Holveck and Richard P. Jaffe, as Directors ...
(Date:6/23/2017)... , ... June 23, 2017 , ... ... provider, announced the latest version of LimitLIS®, its rapidly growing Laboratory Information System. ... up user adoption, ensure installation integrity, and provide more customization options. Each of ...
(Date:6/23/2017)... ... June 23, 2017 , ... ... of a redesigned, easier-to-navigate website for all six of their healthcare job ... nurses, dentists, pharmacists, physical and occupational therapists, and biotechnicians, DocCafe.com and the ...
Breaking Biology Technology:
(Date:5/16/2017)...  Veratad Technologies, LLC ( www.veratad.com ), an innovative ... verification solutions, announced today they will participate as a ... thru May 17, 2017, in Washington D.C.,s ... Identity impacts the lives of billions ... evolving digital world, defining identity is critical to nearly ...
(Date:4/19/2017)... ALBANY, New York , April 19, 2017 /PRNewswire/ ... highly competitive, as its vendor landscape is marked by ... in the market is however held by five major ... and Safran. Together these companies accounted for nearly 61% ... majority of the leading companies in the global military ...
(Date:4/13/2017)... 13, 2017 According to a new market research ... Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and ... is expected to grow from USD 14.30 Billion in 2017 to USD ... 17.3%. ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):