By a News Reporter-Staff News Editor at Science Letter -- Research findings on Nanostructures are discussed in a new report. According to news reporting originating in Bangalore, India, by NewsRx journalists, research stated, "Hollow nanostructures are used for various applications including catalysis, sensing, and drug delivery. Methods based on the Kirkendall effect have been the most successful for obtaining hollow nanostructures of various multicomponent systems."
The news reporters obtained a quote from the research from the Indian Institute of Science, "The classical Kirkendall effect relies on the presence of a faster diffusing species in the core; the resultant imbalance in flux results in the formation of hollow structures. Here, an alternate non-Kirkendall mechanism that is operative for the formation of hollow single crystalline particles of intermetallic PtBi is demonstrated. The synthesis method involves sequential reduction of Pt and Bi salts in ethylene glycol under microwave irradiation. Detailed analysis of the reaction at various stages indicates that the formation of the intermetallic PtBi hollow nanoparticles occurs in steps. The mechanistic details are elucidated using control experiments. The use of microwave results in a very rapid synthesis of intermetallics PtBi that exhibits excellent electrocatalytic activity for formic acid oxidation reaction."
According to the news reporters, the research concluded: "The method presented can be extended to various multicomponent systems and is independent of the intrinsic diffusivities of the species involved."
For more information on this research see: Mechanistic Insights into a Non-Classical Diffusion Pathway for the Formation of Hollow Intermetallics: A Route to Multicomponent Hollow Structures. Particle & Particle Systems Characterization, 2013;30(7):590-598. Particle & Particle Systems Characterization can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Particle & Particle Systems Characterization - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4117)
Our news correspondents report that additional information may be obtained by contacting E.A. Anumol, Indian Inst Sci, Mat Res Center, Bangalore 560012, Karnataka, India. Additional authors for this research include C. Nethravathi and N. Ravishankar (see also Nanostructures).
Keywords for this news article include: Asia, India, Bangalore, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies
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