Fredy Kurniawan
Sepuluh Nopember Institute of Technology
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Featured researches published by Fredy Kurniawan.
Archive | 2016
Yanatra Budipramana; Suprapto; Taslim Ersam; Fredy Kurniawan
CTAB and Sonication has been used for preparing Ni(OH)2 nanoparticles by electrolysis at high voltage. The effect of CTAB and sonication on the morphology and size of Ni(OH)2 nanoparticles was observed. The results obtained were characterized with UV-Vis spectroscopy, X-ray Diffraction (XRD), Fourier Transform Infrared Spectrometer (FTIR), and Transmission Electron Microscopy (TEM). The TEM image shows that Ni(OH)2 nanoparticles obtained with and without CTAB under sonication were nearly spherical. UV-Vis Spectrums show that with CTAB has higher concentration in comparison with without CTAB. But no significant different was found for FTIR spectrum. Thermogram shows Ni(OH)2 nanoparticles obtained with and without CTAB have different properties at 60–140 °C due to association of water and CTAB. The most stable Ni(OH)2 nanoparticles were obtained by addition CTAB under sonication.
Archive | 2009
Fredy Kurniawan
Progress in Organic Coatings | 2015
Fredy Kurniawan; Kartika A. Madurani
ECS Journal of Solid State Science and Technology | 2017
Fredy Kurniawan; Nur Shofwah Al Kiswiyah; Kartika A. Madurani; Masato Tominaga
Indonesian Journal of Chemistry | 2015
Fitriyana Fitriyana; Fredy Kurniawan
Bulletin of Chemical Reaction Engineering & Catalysis | 2017
Fredy Kurniawan; Rahmi Rahmi
Malaysian Journal of Fundamental and Applied Sciences | 2018
Diwasasri Pradini; Hendro Juwono; Kartika A. Madurani; Fredy Kurniawan
Journal of The Electrochemical Society | 2018
Fredy Kurniawan; Nur Shofwah Al Kiswiyah; Kartika A. Madurani; Masato Tominaga
Indonesian Journal of Chemistry | 2017
Hendro Juwono; Triyono Triyono; Sutarno Sutarno; Endang Triwahyuni; Ita Ulfin; Fredy Kurniawan
Bulletin of Chemical Reaction Engineering & Catalysis | 2017
Hendro Juwono; Triyono Triyono; Sutarno Sutarno; Endang Tri Wahyuni; Harmami Harmami; Ita Ulfin; Fredy Kurniawan