Wijayantha Perera (Ph.D) Email & Phone Number

Reno, Nv, Us

Sparks, Nevada, United States

Managing and leading the Analytical Chemistry team to support and address production related issues, onboarding new suppliers and nonroutine quality check for incoming suppliers. Analytical team undertake – Cathode materials, Anode materials, electrolyte, separators, current collectors, can materials, tab materials characterization using various characterization techniques. Characterization instruments – ICP-OES, XRD, GC-MS, GC-TCD, GC-FID, BET surface area analysis, TGA, DMA… Show more Managing and leading the Analytical Chemistry team to support and address production related issues, onboarding new suppliers and nonroutine quality check for incoming suppliers. Analytical team undertake – Cathode materials, Anode materials, electrolyte, separators, current collectors, can materials, tab materials characterization using various characterization techniques. Characterization instruments – ICP-OES, XRD, GC-MS, GC-TCD, GC-FID, BET surface area analysis, TGA, DMA, DSC, PSA, Pycnometer, Karl Fischer titration, UV-Vis, FTIR, Mercury intrusion porosimeter, Electrochemical Characterization. Show less

Sparks, Nevada, United States

• PENA Manufacturing 5.5 millions of Li-ion batteries for Tesla electric vehicles per day• Work within the Materials Engineering team and providing analytical solutions for ongoing projects• Create and maintain analytical method development• Implement industry standards for test methods as appropriate• Working closely with Panasonic-Japan to share knowledge and strategies for improvements.

University Of North Texas

Denton, Texas

Perform research, analysis, develop and validate new procedures using analytical instruments and• Coordinate and communicate with vendors regarding new purchase of equipment• Training new users• Troubleshooting• Ordering new parts and chemicals • Repair instrument and modify instruments to meet research requirements• Creating SOPs and maintain safety requirements. Instruments under ownership • LCMS-8040 Triple Quadrupole Liquid Chromatograph Mass Spectrometer… Show more Perform research, analysis, develop and validate new procedures using analytical instruments and• Coordinate and communicate with vendors regarding new purchase of equipment• Training new users• Troubleshooting• Ordering new parts and chemicals • Repair instrument and modify instruments to meet research requirements• Creating SOPs and maintain safety requirements. Instruments under ownership • LCMS-8040 Triple Quadrupole Liquid Chromatograph Mass Spectrometer system (LC-MS/MS)• HPLC (1260 Infinity II LC System | Shimadzu Prominence HPLC System with SPD-M20A DAD)• ICP-Ms (Perkin Elmer SCIEX Elan 9000 ICPMS System)• GC-Ms (Thermo scientific Trace 1300 and TSQ 8000 Evo)• GC-FID and GC-TCD (Shimadzu Nexis GC-2030 | Shimadzu GC-2010)• Atomic Absorption Spectrometers (Perkin Elmer AAnalyst 300 | iCE™ 3400 AAS Atomic Absorption Spectrometer)• FTIR Spectrometers (Bruker Invenio R | Perkin Elmer Spectrum two FTIR)• Scanning Tunneling Microscope (Nanosurf Naio) • UV-Vis spectrophotometers (Agilent Cary 5000 UV-Vis-NIR Spectrophotometer | Agilent Cary 60 UV | Perkin Elmer Lambda 900)• Digital polarimeter (Bruker PMA 50 | Jasco P-2000 Series)• TGA (TGA Q500)• DSC (DSC Q10)• Jasco J-815 CD SpectrometerAlso• Instructor for General Chemistry (II) lab sequence• Teaching general chemistry for non-chemistry major students• Safety in charge for undergraduate laboratories • Department link - https://chemistry.unt.edu/node/6100 Show less

Dallas, Texas, United States

Metal Oxide-carbon Nanocomposites for Energy Storage and ConversionDeveloped a novel methodology to prepare sodium niobate nanotubes and nanorods. Designed, synthesized and evaluated the sodium niobate nanotubes and nanorods composite materials with graphene, graphene oxide and carbon nanotubes. Fabricated device prototypes using the materials developed and evaluated the electrochemical properties.• Synthesized composite materials using hydrothermal synthesis. • Studied… Show more Metal Oxide-carbon Nanocomposites for Energy Storage and ConversionDeveloped a novel methodology to prepare sodium niobate nanotubes and nanorods. Designed, synthesized and evaluated the sodium niobate nanotubes and nanorods composite materials with graphene, graphene oxide and carbon nanotubes. Fabricated device prototypes using the materials developed and evaluated the electrochemical properties.• Synthesized composite materials using hydrothermal synthesis. • Studied the structural and electrochemical behavior of nanostructures.• Designed and fabricated devices to analyze electrochemical performance using cyclic voltammetry, charge/discharge characteristics and impedance spectroscopy. Developed a new synthetic method to prepare different morphologies of ruthenium oxide nanostructures to enhance the pseudocapacitive properties of supercapacitors (nanoribbons, quantum dots). • Developed composite electrode with carbon nanotubes. • Developed a novel technology to decorate ruthenium oxide quantum dots on vanadium oxide nanowires for high performance supercapacitor. • Studied the surface modification of vanadium oxide nanowires and carbon materials for supercapacitor electrodes using ruthenium oxide quantum dots. Developed highly efficient photocatalytic composite materials for degradation of organic dyes by sandwiching titanium oxide nanotubes, ruthenium oxide nanoribbons and hydrothermally reduced graphene oxide. • Conducted layer by layer synthesis of composites to enhance photocatalytic efficiency. • Designed, synthesized and conducted photochemical reaction to evaluate the photocatalytic activity. Developed novel methods to prepare pseudocapacitive carbon nanofibers by electrospinning polymer solution polyacrylonitrile (PAN) with different metal oxide and nitride nanostructures. Also conducted regular maintenance and repairing of lab equipment. Served as the laboratory manager to get quotations and order laboratory supplies. Show less

Pgis

Demonstrated for Nanoscience and nanotechnology post graduate institute students

Synthesis Of Hydroxyapatite Nano Particles And Investigation Of Their Mechanical PropertiesHydroxyapatite (HA) formulated as Ca10(PO4)6(OH)2) has been widely used in medical, dental and other health-related fields as materials for damage bones or teeth, important implant and scaffold materials, as drug delivery agents due to their bioactivity, and ostioconductivity and non-toxicity. In this research mechanical properties and thermal conductivity of hydroxyapatite… Show more Synthesis Of Hydroxyapatite Nano Particles And Investigation Of Their Mechanical PropertiesHydroxyapatite (HA) formulated as Ca10(PO4)6(OH)2) has been widely used in medical, dental and other health-related fields as materials for damage bones or teeth, important implant and scaffold materials, as drug delivery agents due to their bioactivity, and ostioconductivity and non-toxicity. In this research mechanical properties and thermal conductivity of hydroxyapatite were measured. These measurements are extremely important in modeling artificial bones. When hydroxyapatite coated on steel it must be sintered in order to make good attachment on to the steel surface. In this process mechanical and thermal properties will change and it will affect to the implant. Therefore, the variation of the mechanical and thermal properties with the sintering temperature was studied. For this process hydroxyapatite nano particles were used. According to the conclusion, mechanical properties were enhanced with the sintered temperature. This finding was supported by the results from X-ray diffractometry(XRD), Fourier transform infrared spectroscopy (FTIR), readings of Universal testing machine and Scanning differential calorimeter (SDC). The mechanical properties of HA samples such as modulus of rupture (MOR) and young’s modulus were investigated for arectangular bar by four-point bending. As well as designed a sample maker were used to prepare rods for measures thermal conductivity Show less

Peradeniya

Demonstrate physics practicals for under graduate students

Doctor Of Philosophy (Phd), Chemistry And Materials Science (Energy Storage Device)

Advisors: Professor Kenneth J. Balkus, Prfessor John P. Ferraris, Professor Bruce E. Gnade, Professor Yves Chabal Courses followed.

Msc In Nanoscience And Nanotechnology, Nanoscience And Nanotechnology, 3.75

Research Thesis : Synthesis of hydroxyapatite nano particles and investigation of their mechanical properties for bio active bone implants.

Bachelor Of Science (B.Sc.), Chemistry, Physics, Maths, Hons

Activities and Societies: University table tennis team

A/L, Chemistry , Physics, Maths

Activities and Societies: Member of Interact club