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A New Class of Hierarchical Silver Nanostructures Enabled by Electrospinning and Novel Hydrothermal Treatment

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In the present study, silver nanoparticles have been synthesized in new hierarchical shapes by combining a simple electrospinning technique with a novel hydrothermal treatment process. A sol–gel consisting of poly(vinyl alcohol) and silver nitrate was electrospun to produce nanofiber mats that were dried under vacuum at room temperature for 24 h. The dried nanofiber mats were hydrothermally treated by a novel strategy. The treatment process relied on producing water gas (Co and H2) to eliminate the polymer and reduce silver nitrate to silver metal. The process was carried out by heating the dried nanofiber mates at 300 °C for 30 min in a suitably designed reactor in which a stream of water vapor was passed through an activated carbon bed. Physiochemical characterization analyses indicate that the proposed hydrothermal treatment process can lead to production of silver nanostructures in shapes resembling the leaves of date trees.
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Keywords: ELECTROSPINNING; HIERARCHICAL STRUCTURES; HYDROTHERMAL TREATMENT; SILVER NANOPARTICLES; WATER GAS

Document Type: Research Article

Publication date: December 1, 2009

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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