Štěpán Kment
Technical University of Ostrava
10 Papers
10 Citations
Štěpán Kment is an academic researcher from Technical University of Ostrava. The author has contributed to research in topics: Catalysis & Water splitting. The author has an hindex of 3, co-authored 10 publications.
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Papers
Elucidating the role of surface states of BiVO4 with Mo doping and a CoOOH co-catalyst for photoelectrochemical water splitting
TL;DR: In this paper, a comprehensive study was conducted to elucidate a recombination phenomenon of BiVO4 that arises with Mo doping, where the Mo doping produces multiple effects including the formation of MoOx (reduced form of Mo6+) species and oxygen vacancies (VOs) on the surface of the bi-vivo4 that work in tandem with V4+ species acting as surface active intermediates (i-SS) providing improved hole transfer to the electrolyte.
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Rational Design of Graphene Derivatives for Electrochemical Reduction of Nitrogen to Ammonia
Mandira Majumder,Haneesh Saini,Ivan Dědek,Andreas Schneemann,Nilesh R. Chodankar,Viswanatha Ramarao,Mysore Sridhar Santosh,Ashok Kumar Nanjundan,Štěpán Kment,Deepak P. Dubal,Michal Otyepka,Radek Zbořil,Kolleboyina Jayaramulu +12 more
TL;DR: The conversion of nitrogen to ammonia offers a sustainable and environmentally friendly approach for producing precursors for fertilizers and efficient energy carriers as discussed by the authors, however, due to the large energy consumption, it is not suitable for large-scale applications.
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Significant Enhancement of Photoactivity in Hybrid TiO2/g-C3N4 Nanorod Catalysts Modified with Cu–Ni-Based Nanostructures
Anuj K. Rathi,Hana Kmentova,Alberto Naldoni,Anandarup Goswami,Manoj B. Gawande,Rajender S. Varma,Štěpán Kment,Radek Zbořil +7 more
- 14 May 2018
TL;DR: In this article, a photocatalytic nanocomposite system based on titania (TiO2) was proposed for photoelectrochemical (PEC) water splitting to produce hydrogen under sunlight.
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Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors.
Yunpeng Zuo,Tingting Li,Ning Zhang,Tianyun Jing,Dewei Rao,Patrik Schmuki,Štěpán Kment,Radek Zbořil,Yang Chai +8 more
TL;DR: In this paper, a spatially confined synthetic strategy based on a porous-hollow carbon nitride (p-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (pCN@M SAs).
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Carboxylated Graphene for Radical-Assisted Ultra-Trace-Level Water Treatment and Noble Metal Recovery.
Jan Kolařík,Aristides Bakandritsos,Zdeněk Bad'ura,Rabindranath Lo,Giorgio Zoppellaro,Štěpán Kment,Alberto Naldoni,Yu Zhang,Martin Petr,Ondřej Tomanec,Jan Filip,Michal Otyepka,Pavel Hobza,Radek Zbořil,Radek Zbořil +14 more
TL;DR: In this article, a densely functionalized graphene, with 33% by mass content of carboxyl groups, linked through direct C-C bonds (graphene acid, GA) represents a previously unexplored solution to this challenge.
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