| 个人简介 | |
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 Dr. Natalia TINTARU (TSYNTSARU) VU (Vilnius University), Lithuania / Institute of Applied Physics, Moldova |
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| 标题： ELECTRODEPOSITION OF MULTIFUNCTIONAL MATERIALS: TUNGSTEN AND MOLYBDENUM ALLOYS | |
| 摘要： The electrodeposition is a well-known conventional surface modification method, which is used to improve the decorative and functional surface characteristics of a wide variety of materials. Presently, electrodeposition remains an area of extensive research and innovation. Particular attention focuses on the electrodeposition of binary and ternary alloys and their composites, which enables to fabricate new materials possessing unique properties that differ from those of the individual metals. Also, the electrodeposition has gained importance as an accepted versatile technique for the preparation of nanoscale and multifunctional materials, offering control over their structure, composition and properties. Innovative multifunctional materials enhance overall operational device performance by incorporating a number of tailorable properties, e.g. thermal, mechanical, electrical, catalytic, etc., into a single material. In this context, the nanocrystalline iron group metals alloys with tungsten and molybdenum deserve a special note, since they show a remarkable potential as decorative coatings and due to the highly tuneable magnetic, mechanical, tribological and thermal properties that can be modified in accordance with the technological requirements only by changing their composition and structure. Apparently, a significant amount of the refractory metal and ultra-nanocrystalline structure of those alloys predetermines improved electro-catalytic properties towards hydrogen evolution reaction (HER) as well as the corrosion resistance. The higher catalytic activity of the ultra-nanocrystalline alloys is attributed to the formation of stable intermetallic phases, which ensures optimal metals distribution over the surface and produces larger active sites for the HER. The intermetallic phase enhances good corrosion resistance in H2SO4 medium and leads to the positive catalytic effect towards methanol oxidation reaction. The integration of sustainability into the technological progress remains an important challenge, among others, addressed to modern electrochemical society. The development and optimization of new environmentally friendly and minimally invasive electrolytic baths for production of advanced materials is necessary. Keywords: electrodeposition, tungsten, molybdenum, iron group metals alloys, multifunctional materials. | |
| 简介： BIOGRAPHY: EDUCATION AND DIPLOMAS PhD: Field: chemistry, Specialty: electrochemistry; Title: Thermokinetic processes at chromium electrodeposition and Co-W alloys. 2007. Moldova Research Associated Professor, Specialty: Engineering and Technology of Materials, 2015. PROFESSIONAL EXPERIENCE Current activities Leading scientific researcher at Vilnius University, individual grant under European Structural Funds Leading scientific researcher at the Institute of Applied Physics, the Laboratory of Electrophysical and Electrochemical Treatment of Materials, Chisinau Moldova Coordinator of Moldovan partner in “SMARTELECTRODES” project funded by HORIZON 2020 program Research and Innovation Staff Exchanges (RISE) Former activities Marie Curie Fellow, FP7 (individual fellowship) at Departement Metaalkunde en Toegepaste Materiaalkunde (MTM), KU Leuven, Belgium (incoming phase) and at the Institute of Applied Physics of the Academy of Sciences of Moldova (return phase) Invited researcher at Vilnius University, Lithuania Invited researcher at University Autonoma de Barcelona, Spain Invited researcher at Northeastern University, USA | |
