| 1. | Nwaji N., Fikadu B. B., Osial M., Warczak M., Moazzami Goudarzi Z., Gniadek M., Asgaran S., Lee J., Giersig M., Advanced Functional NiCo 2 S4 @CoMo2 S4 Heterojunction Couple as Electrode for Hydrogen Production via Energy-Saving Urea Oxidation, Small, ISSN: 1613-6810, DOI: 10.1002/smll.202410848, Vol.2410848, pp.1-13, 2025 Nwaji N., Fikadu B. B., Osial M., Warczak M., Moazzami Goudarzi Z., Gniadek M., Asgaran S., Lee J., Giersig M., Advanced Functional NiCo 2 S4 @CoMo2 S4 Heterojunction Couple as Electrode for Hydrogen Production via Energy-Saving Urea Oxidation, Small, ISSN: 1613-6810, DOI: 10.1002/smll.202410848, Vol.2410848, pp.1-13, 2025Abstract:
The urea oxidation reaction (UOR) is characterized by a lower overpotential compared to the oxygen evolution reaction (OER) during electrolysis, which facilitates the hydrogen evolution reaction (HER) at the cathode. Charge
distribution, which can be modulated by the introduction of a heterostructure, plays a key role in enhancing the adsorption and cleavage of chemical groups within urea molecules. Herein, a facile all-room temperature synthesis of functional heterojunction NiCo2 S4 /CoMo 2 S4 grown on carbon cloth (CC) is presented, and the as-prepared electrode served as a catalyst for simultaneous hydrogen evolution and urea oxidation reaction. The Density
Functional Theory (DFT) study reveals spontaneous transfer of charge at the heterointerface of NiCo 2 S4 /CoMo 2 S4 , which triggers the formation of localized electrophilic/nucleophilic regions and facilitates the adsorption of electron donating/electron withdrawing group in urea molecules during the UOR. The NiCo2 S4 /CoMo 2 S4 // NiCo 2 S4 /CoMo 2 S4 electrode pair required only a cell voltage of 1.17 and 1.18 V to deliver a current density of 10 and 100 mA cm−2 respectively in urea electrolysis cell and display very good stability. Tests performed in real urine samples show similar catalytic performance to urea electrolytes, making the work one of the best transition
metal-based catalysts for UOR applications, promising both efficient hydrogen production and urea decomposition. |  |
| 2. | Kulus D., Tymoszuk A., Kulpińska A., Osial M., Synergistic effects of iron oxide nanoparticles and indole-3-acetic acid on the germination and development of cold-stored chrysanthemum synthetic seeds, Plant Cell, Tissue and Organ Culture (PCTOC), ISSN: 0167-6857, DOI: 10.1007/s11240-024-02955-7, Vol.160, No.18, pp.1-12, 2025 |  |
| 3. | Grigoryan N., Chudziński P., Tomonaga–Luttinger Liquid Parameters in Multiwalled Nanotubes, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, ISSN: 0370-1972, DOI: 10.1002/pssb.202400524, Vol.2400524, pp.1-10, 2025Grigoryan N., Chudziński P., Tomonaga–Luttinger Liquid Parameters in Multiwalled Nanotubes, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, ISSN: 0370-1972, DOI: 10.1002/pssb.202400524, Vol.2400524, pp.1-10, 2025Abstract:
Tomonaga–Luttinger liquid (TLL) theory is a canonical formalism used to describe 1D metals, where the low-energy physics is determined by collective Bosonic excitations. Herein, a theoretical model to compute the parameters of Tomonaga–Luttinger liquid (TLL) in multiwalled nanotubes (MWNTs) is presented. MWNTs introduce additional complexity to the usual Fermionic chains due to interactions and hybridization between their multiple coaxial shells. A model in which conducting paths along the length of the MWNTs are randomly distributed among the shells is considered. Since the valley degree of freedom remains a good quantum number, the TLL description in addition to spin and charge contains also valley degree of freedom and hence four-mode description applies. The values of all four TLL parameters are obtained for this model. A surprising outcome is that the compressibility of the holon mode becomes a universal quantity, while the parameters of neutral modes will depend on the details of intershell coupling. Finally, experiments where predictions can be tested are proposed. | |
