Przeglądaj Instytut Chemii Fizycznej PAN według tytułu
Wyświetlanie pozycji 10-29 z 169
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Better red than dead: On the influence of Oil Red O dye on complexity of evolution of a camphor-paraffin droplet on the water surface
(2018)Droplets of paraffin can show self-motion when powered by camphor. We investigated the motion of such droplets when varying concentrations of camphor and the dye, Oil Red O, as well as the droplet volume. Experiments have ... -
Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation
(Royal Society of Chemistry, 2021-01-26)The catalytic performance of metal nanoparticles (NPs), including activity, selectivity, and durability, depends on their shape and structure at the molecular level. Consequently, metal NPs of different size and shape, ... -
Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation
(Royal Society of Chemistry, 2021-01-19)The catalytic performance of metal nanoparticles (NPs), including activity, selectivity, and durability, depends on their shape and structure at the molecular level. Consequently, metal NPs of different size and shape, ... -
Bio-dee synthesis and dehydrogenation coupling of bio-ethanol to bio-butanol over multicomponent mixed metal oxide catalysts
(MDPI, 2021-05-22)Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods from municipal solid wastes (MSWs) are sought for application as energy carriers or direct drop-in fuels/chemicals in ... -
Boost and Contraction of Flow by Herringbone Surface Design on the Microfluidic Channel Wall
(Wiley-VCH GmbH, 2023-05-23)The handling of yield-stress fluids typically involves a jammed-to-flow transition that is pivotal for many injection and transport technologies on different scales, such as additive manufacturing, injection molding, food ... -
A BZ Assemblage Working for a Day
(Society of Physical Chemists of Serbia, 2021-12-15)Our work is focused on the experimental observation of Bielousov-Zhabotinsky reaction oscillations in ferroin loaded Dowex 50w beads in a batch reactor open to the atmosphere. We investigated the conditions for the maximum ... -
C sp2/sp3 hybridisations in carbon nanomaterials – XPS and (X)AES study
(Elsevier, 2018-05-05)Shape of the C KLL (KVV) Auger spectrum provides a measure of C sp2/sp3 hybridisations, alternative to C 1s spectra fitting. Due to a smaller kinetic energy of C KLL electrons than C 1s photoelectrons the investigated ... -
A camphene‑camphor‑polymer composite material for the production of superhydrophobic absorbent microporous foams
(Springer Nature, 2022)In a recently published paper (doi.org/10.3390/molecules26113116) on self-propelled motion of objects on the water surface, we described a novel surface-active plastic material obtained by dissolution of camphor and ... -
Can A Network of Chemical Oscillators Help to Diagnose Schizophrenia?
(Old City Publishing, Inc., 2020)Schizophrenia is one of the most common mental disorders, however it is difficult to detect and can remain undiagnosed for years. It is believed that information if a patient is ill can be extracted from EEG signals recorded ... -
Capacitance response and concentration fluctuations close to ionic liquid-solvent demixing
(Elsevier, 2022-01)We investigate the concentration fluctuations in a simple model of electrolyte (two positively and negatively charged Lennard-Jones spheres in a solution of an uncharged Lennard-Jones liquid) confined between electrodes ... -
Capillary Ionization and Jumps of Capacitive Energy Stored in Mesopores
(American Chemical Society, 2021-04-30)We study ionic liquid–solvent mixtures in slit-shaped nanopores wider than a few ion diameters. Using a continuum theory and generic thermodynamic reasoning, we reveal that such systems can undergo a capillary ionization ... -
Carboxylated Pillar[5]arene Meets Medicinal Biguanides: Host−Guest Complexes with Alexidine and Phenformin in the Crystal and Solution/Gas Phase
(American Chemical Society, 2023-10-12)Here we discuss crystal and solution/gas phase complexes of carboxylated pillar[5]arene with two cationic guests, alexi-dine and phenformin, revealing host-guest and assembly curiosities, the role of hydrogen bonding and ... -
Carboxylated Pillar[6]arene Emulates Pillar[5]arene in the Host–Guest Crystal Complexes and Shows Conformational Flexibility in the Solution/Gas Phase
(American Chemical Society, 2022-12-08)Despite the thriving interest in the aqueous complexation properties of carboxylated pillar[6]arene, its solid state supramolecular chemistry has remained a mystery. Here, overcoming challenging crystallogenesis, we report ... -
CAT on MOUSE: Control and automation of temperature for single-sided NMR instruments such as NMR-MOUSE
(John Wiley & Sons, 2023)Temperature-dependent experiments are a rapidly growing area of interest for low-field NMR. In this work, we present a new device for wide-range temperature control for single-sided NMR instruments. The presented device, ... -
Catalytic Ketonization over Oxide Catalysts (Part XIV): The Ketonization and Cross-Ketonization of Anhydrides, Substituted Acids and Esters
(MDPI, 2024-01-24)A series of 20 wt.% MO2 /S catalysts (where M = Ce, Mn or Zr and S = SiO2 or Al2 O3 ) were prepared using various precursors of the active phases. The resulting catalysts were characterized using different methods (XRD, ... -
Characterization of charge transfer excited states in [2Fe–2S] iron–sulfur clusters using conventional configuration interaction techniques
(Springer, 2020-06-22)The experimental UV–Vis spectra of the biologically relevant [2Fe–2S] iron–sulfur clusters feature typically three bands in the 300–800 nm range. Based on ground-state orbitals and using the one electron transition picture, ... -
Charging dynamics of electrical double layers inside a cylindrical pore: predicting the effects of arbitrary pore size
(Royal Society of Chemistry, 2021-12-06)Porous electrodes are found in energy storage devices such as supercapacitors and pseudocapacitors. However, the effect of electrode-pore-size distribution on their energy storage properties remains unclear. Here, we develop ... -
Chemical and structural properties of reduced graphene oxide – dependence on the reducing agent
(Springer, 2020-11-09)Graphene oxide (GO) prepared from graphite powder using a modified Hummers method and reduced graphene oxide (rGO) obtained from GO using different reductants, i.e. sodium borohydride, hydrazine, formaldehyde, sodium ... -
Chemical Memory with Discrete Turing Patterns Appearing in the Glycolytic Reaction
(MDPI, 2023-04-13)Memory is an essential element in information processing devices. We investigated a network formed by just three interacting nodes representing continuously stirred tank reactors (CSTRs) in which the glycolytic reaction ... -
Chitosan-Based N‑Doped Carbon Materials for Electrocatalytic and Photocatalytic Applications
(American Chemical Society, 2020)Chitosan-derived N-doped carbon materials are attractive candidates for the preparation of catalysts with a wide range of applications. Chitosan is a nitrogen rich (∼7 wt %) renewable biomass resource derived from seafood ...