Tomas Polcar
Czech Technical University in Prague
222 Papers
632 Citations
Tomas Polcar is an academic researcher from Czech Technical University in Prague. The author has contributed to research in topics: Coating & Tribology. The author has an hindex of 36, co-authored 194 publications. Previous affiliations of Tomas Polcar include University of Coimbra & Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa.
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Papers
Precise control of the interlayer twist angle in large scale MoS2 homostructures.
Mengzhou Liao,Mengzhou Liao,Zheng Wei,Luojun Du,Qinqin Wang,Jian Tang,Hua Yu,Fanfan Wu,Jiaojiao Zhao,Xiaozhi Xu,Bo Han,Kaihui Liu,Peng Gao,Tomas Polcar,Zhipei Sun,Dongxia Shi,Rong Yang,Guangyu Zhang +17 more
TL;DR: In this paper, the authors reported the precise control of interlayer twist angle in centimeter-scale stacked multilayer MoS2 homostructures via the combination of wafer-scale highly-oriented monolayer growth techniques and a water-assisted transfer method.
Electronic metal-support interaction enhanced oxygen reduction activity and stability of boron carbide supported platinum.
Colleen Jackson,Graham Smith,Graham Smith,David W. Inwood,Andrew S. Leach,Penny S. Whalley,Mauro Callisti,Tomas Polcar,Andrea E. Russell,Pieter Levecque,Denis Kramer +10 more
TL;DR: Platinum nanoparticles supported on graphite-rich boron carbide show a 50–100% increase in activity in acidic media and improved cycle stability compared to commercial carbon supported platinum nanoparticles, showing that purely electronic metal-support interactions can significantly improve oxygen reduction activity.
UItra-low friction and edge-pinning effect in large-lattice-mismatch van der Waals heterostructures.
Mengzhou Liao,Mengzhou Liao,Paolo Nicolini,Luojun Du,Luojun Du,Jiahao Yuan,Shuopei Wang,Hua Yu,Jian Tang,Peng Cheng,Kenji Watanabe,Takashi Taniguchi,Lin Gu,Victor E. P. Claerbout,Andrea Silva,Denis Kramer,Denis Kramer,Tomas Polcar,Tomas Polcar,Rong Yang,Dongxia Shi,Guangyu Zhang +21 more
TL;DR: In this paper, the superlubricity phenomenon and the edgepinning effect at MoS2/graphite and MoS 2/hexagonal boron nitride van der Waals heterostructure interfaces were investigated.
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Temperature dependence of tribological properties of MoS2 and MoSe2 coatings
TL;DR: In this paper, a comparison of tribological properties of transition metal dichalcogenides (MoS2) and molybdenum diselenide (MoSe2) coatings measured in air of different humidity and at elevated temperatures is presented.
164
Comparison of tribological behaviour of TiN, TiCN and CrN at elevated temperatures
TL;DR: In this article, the wear data of PVD-coated instruments at temperatures exceeding room temperature were measured using a high-temperature tribometer (pin-on-disc, CSM Instruments).
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