Sasan Ghashghaie
Postdoctoral Fellow focused on the reliability and safety of Li-ion batteries at Centre for Advances in Reliability and Safety- Claim this Profile
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Persian Native or bilingual proficiency
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English Professional working proficiency
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Bio
Experience
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Centre for Advances in Reliability and Safety
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Hong Kong
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Appliances, Electrical, and Electronics Manufacturing
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1 - 100 Employee
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Postdoctoral Fellow focused on the reliability and safety of Li-ion batteries
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Dec 2020 - Present
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CAIRS
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United States
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1 - 100 Employee
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Postdoctoral Fellow
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Dec 2020 - Present
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The Hong Kong University of Science and Technology
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Hong Kong
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Higher Education
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700 & Above Employee
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Research Assistant
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Jul 2020 - Sep 2020
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City University of Hong Kong
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Hong Kong
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Higher Education
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700 & Above Employee
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PhD research fellow, Li-S battery researcher
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Sep 2016 - Aug 2020
• Electrophoretic deposition (EPD) of carbonaceous nanomaterials and metal/metal oxide electrocatalysts on 3D carbon fiber paper (CFP) for cathode applications in Li-S batteries: Homogeneous films covering both surface and bulk fibers can be obtained in a few minutes. • Co-deposition of CNT and Pt nanoparticles by EPD on 3D CFP to form a CNT-Pt nanocomposite layer: The discharge capacity at 1C was improved by > 300% for CNT-Pt, as compared with that of the pristine CNT layer. • Studying the effect of fabrication method (EPD versus the conventional tape-casting method) on the microstructure of the cathode film and the electrochemical performance of the resultant Li-S cell. • Studying the effect of sulfur host materials (carbonaceous versus metal oxide) on the morphology of sulfur precipitates obtained at the end of the charging process in Li-S batteries: A mechanism was proposed for the nucleation and growth process of sulfur deposits using SEM and EIS studies. Note: regarding the tight academic schedule as well as the indigenous fast pace of life in Hong Kong, successful handling of a PhD project entails effective improvement of time management, flexibility, diligent critical analysis, and communicational skills. Show less
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Materials and Energy Research Center (MERC)
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Higher Education
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1 - 100 Employee
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Post graduate Research Assistant, for the development of electrochemical toxic gas sensors
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Mar 2011 - Mar 2015
• Fabrication of electrochemical gas sensors for detecting O2, CO, H2S in coal mines.• Electrophoretic deposition (EPD) of Pt/C nanoparticles on non-conducting hydrophobic polytetrafluoroethylene membrane as working electrode in electrochemical CO gas sensors: Uniform crack-free layers were obtained in 10 min at 30 V, showing clear response to CO.• Predicting the corrosion products of lead (Pb) in KOH aqueous solution (in O2 sensor): A simplified Pourbaix diagram was plotted for the Pb/KOH system, applying the Nernst equation for possible anodic and cathodic reactions taking place in system.Note: Since the “electrochemical gas sensors” project was defined in collaboration with the mining industry sector, it significantly helped me develop my time management, teamwork, flexibility, and creative problem-solving skills. Show less
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M.S. student, electric-field assisted deposition of nanoparticles
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Oct 2008 - Sep 2011
• Low-frequency electrophoretic deposition of zinc oxide nanoparticles, nanorods, and nanofibers on interdigitated electrodes to fabricate solid-state resistive gas sensors.• Studying the effect of electric field frequency (0.1 Hz-10 kHz) on the microstructure of the ZnO films deposited within the interelectrode gap of co-planar gold electrodes: The layers obtained at lower frequencies were cracked. However, ZnO nanoparticles bridged the inter-electrode gap by forming pearl chains along the electric field lines at 10 kHz, which is the desirable pattern for electronic applications.• Investigating the effect of the viscosity of suspension medium on the microstructure and porosity of the metal oxide films deposited under AC and DC electric fields: (i) At extremely low-viscosity media (acetone), the deposited film is more prone to cracking due to high deposition rate and rapid solvent evaporation.(ii) At higher viscosities (isopropanol), the relatively low deposition rate gives rise to the formation of a more uniform layer with better inter-particle connections. Show less
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Research Assistant
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Feb 2009 - Jan 2010
Project: “The Electroless nickel plating of catalytically graphitized carbon nanofibers”.Supervized by: Prof. Mansour Keyanpour-radWe successfully employed the electroless deposition technique to apply a thin nickel (Ni) coating on carbonized electrospun carbon nanofibres (CNFs): A uniform nickel coating on the surface of CNFs is expected to improve their poor wettability by metal matrix in metal/CNF composites.
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Shahid Bahonar University of Kerman
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Iran
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Higher Education
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100 - 200 Employee
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B.S. student
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Oct 2003 - Sep 2007
In my bachelor thesis, I studied the corrosion inhibition behavior of Ethelenediamine and Pyridine for CO2- induced corrosion of St52 steel in 3.5 % NaCl solution. In my bachelor thesis, I studied the corrosion inhibition behavior of Ethelenediamine and Pyridine for CO2- induced corrosion of St52 steel in 3.5 % NaCl solution.
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Education
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City University of Hong Kong
Doctor of Philosophy (PhD), Materials Science and Engineering -
Materials and Energy Research Center (MERC)
Master of Science (M.Sc.), Materials Science and Engineering -
Shahid Bahonar University of Kerman
Bachelor of Science (B.Sc.), Materials Science and Engineering