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Researchers at Norwegian University of Science and Technology (NTNU) Report New Data on Chemical Engineering (Spherulitic Growth of Gold Particles...

September 10, 2014



Researchers at Norwegian University of Science and Technology (NTNU) Report New Data on Chemical Engineering (Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution)

By a News Reporter-Staff News Editor at Journal of Engineering -- New research on Chemical Engineering is the subject of a report. According to news reporting originating from Trondheim, Norway, by VerticalNews correspondents, research stated, "Spherical gold particles were formed by reduction of auric acid with ascorbic acid in both spontaneous precipitation and seeded experiments. Micron-sized gold polycrystalline sea urchin-like particles were generated at lower pH conditions with and without a polymeric stabilizer."

Our news editors obtained a quote from the research from the Norwegian University of Science and Technology (NTNU), "The fact that growth was depending on the surface area of the seeds and at the same time was not significantly affected by stabilizing polymers illustrates that the underlying particle enlargement mechanism is crystal growth and not an assembly of already nucleated nano-crystals by aggregation as usually claimed in the literature. When the seed surface area was reduced, nucleation of new gold nanoparticles was observed, and these particles did not show any tendency to aggregate."

According to the news editors, the research concluded: "Based on this understanding it was demonstrated how the morphology of the micron-sized particles can be controlled."

For more information on this research see: Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution. Chemical Engineering & Technology, 2014;37(8):1399-1407. Chemical Engineering & Technology can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Chemical Engineering & Technology - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4125)

The news editors report that additional information may be obtained by contacting L.J. Wang, Norwegian Univ Sci & Technol NTNU, N-7491 Trondheim, Norway.

Keywords for this news article include: Trondheim, Norway, Europe, Chemical Engineering

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Engineering


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