کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
236917 465688 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of aqueous ammonia addition on the morphology and size of silver particles reduced by ascorbic acid
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of aqueous ammonia addition on the morphology and size of silver particles reduced by ascorbic acid
چکیده انگلیسی

Controllable synthesis of uniform silver particles was investigated via rapid mixing of l-ascorbic acid aqueous solution and silver–amine complex aqueous solution in the presence of polyvinyl pyrrolidone (PVP) at room temperature. It is found that the addition of nitric acid and aqueous ammonia into the reaction solution has a crucial effect on the final morphology of the resulting products. Furthermore, the effect of aqueous ammonia addition on the morphology and size of silver particles was investigated in this study. Smooth silver particles with the diameters ranging from 0.2 μm up to 2 μm were obtained by varying the concentration of aqueous ammonia. The synthesis method was of excellent stability in the range of 20–40 °C, which can be considered as an effective method for large-scale preparation of mono-dispersive silver particles with a wide size range.

This study presents a convenient method to produce mono-dispersive silver particles with a smooth surface by reducing silver–amine complex with l-ascorbic acid. Silver particles with the diameters ranging from 0.2 μm up to 2 μm were obtained by varying the concentration of aqueous ammonia.Figure optionsDownload as PowerPoint slideHighlights
► Smooth silver particles with the size of 0.2–2 μm were synthesized.
► The morphology of silver particles was affected by the addition of an acid and base.
► The size of silver particles was tunable by varying the concentration of ammonia.
► The synthesis method was of excellent stability in the range of 20–40 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 233, January 2013, Pages 91–95
نویسندگان
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