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The Effect of Ascorbic Acid Using in Electrochemical Method to Synthesize Gold Nanoparticles

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This paper describes the effect of ascorbic acid during the electrochemical method of gold nanoparticles employing cetyltrimethylammonium bromide as a cationic surfactant system. With the addition of ascorbic acid into the electrolyte, it can accelerate the reducing of precursors and reduce the size of nanoparticles. The main parameters in this experiment are time interval, amount of additives (ascorbic acid), and addition rate. By changing these parameters, the morphology of nanoparticles can be influenced. In addition, the model of ascorbic acid concentration varying in electrolyte and reaction mechanism is propounded. The size dimension of nanoparticles is less than 5 nm with the transmission electron microscope analysis. The absorption wavelength peak is about 525 nm with the UV/vis spectrum analysis. In addition, the crystal structure is face-centered cubic (FCC) packing with X-ray diffraction analysis.
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Keywords: Electrochemical Method; Metal Nanoparticles; Surfactants

Document Type: Research Article

Affiliations: 1: Department of Electrical Engineering, Kao-Yuan University, Kaohsiung 82151, Taiwan 2: Department of Electrical Engineering, National University of Kaohsiung, Kaohsiung 81148, Taiwan 3: Department of Aviation and Communication Electronics, Air Force Institute of Technology, Kaohsiung 82047, Taiwan 4: Department of Applied Physics, National University of Kaohsiung, Kaohsiung 81148, Taiwan

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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