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Showing 1 to 12 of 13 entries
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The temperature dependence for the third shell's Fourier-peak of Nb-EXAFS in KNbO3 as additional source of information on the local atomic structure.

Journal of synchrotron radiation

Bugaev LA, Shuvaeva VA, Zhuchkov KN, Rusakova EB, Vedrinskii RV.
PMID: 11512762
J Synchrotron Radiat. 2001 Mar 01;8:308-10. doi: 10.1107/s0909049500016939.

The information on the structure of tetragonal KNbO3 is extracted from the temperature dependence of the third shell's Fourier-peak of Nb-EXAFS. It is shown that this dependence can be explained by two effects: 1) rigid rotations of the O6-octahedron...

The regular approach for identifying the atomic displacements in ABO3 crystals and its application to high-temperature phases of KNbO3.

Journal of synchrotron radiation

Bugaev LA, Shuvaeva VA, Zhuchkov KN, Rusakova EB, Alekseenko IB.
PMID: 15263285
J Synchrotron Radiat. 1999 May 01;6:299-301. doi: 10.1107/S0909049599000977. Epub 1999 May 01.

No abstract available.

Surface properties of porous carbon obtained from polystyrene sulfonic acid-based organic salts.

Langmuir : the ACS journal of surfaces and colloids

Hines D, Bagreev A, Bandosz TJ.
PMID: 15875873
Langmuir. 2004 Apr 13;20(8):3388-97. doi: 10.1021/la0360613.

Pyrolysis ofpolysterene sulfonic acid-co-maleic acid salts at 800 degrees C resulted in formation of new materials consisting of porous carbon and metal species dispersed on the surface. After hydrochloric acid treatment, the metal oxides/salts were removed. Obtained materials were...

Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling.

The journal of physical chemistry. A

Bukreev A, Mikhailov K, Shelaev I, Gostev F, Polevaya Y, Tyurin V, Beletskaya I, Umansky S, Nadtochenko V.
PMID: 26935579
J Phys Chem A. 2016 Mar 31;120(12):1961-70. doi: 10.1021/acs.jpca.5b11025. Epub 2016 Mar 17.

The synthesis of new zinc porphyrin oligomers linked by a triazole bridge was carried out via "click" reaction. A split in the porphyrin oligomer B-band was observed. It was considered as evidence of exciton-excitonic coupling. The relaxation of excited...

Local structure of aluminum in zeolite mordenite as affected by temperature.

The journal of physical chemistry. B

Bugaev LA, van Bokhoven JA, Sokolenko AP, Latokha YV, Avakyan LA.
PMID: 16852309
J Phys Chem B. 2005 Jun 02;109(21):10771-8. doi: 10.1021/jp0508709.

The local aluminum structure in zeolite mordenite was studied at temperatures up to 1000 K in a vacuum by Al K-edge X-ray absorption near-edge structure (XANES) spectroscopy. The interatomic aluminum-oxygen distances and the number of coordinating oxygen atoms were...

H2S adsorption/oxidation on materials obtained using sulfuric acid activation of sewage sludge-derived fertilizer.

Journal of colloid and interface science

Bagreev A, Bandosz TJ.
PMID: 16290778
J Colloid Interface Sci. 2002 Aug 01;252(1):188-94. doi: 10.1006/jcis.2002.8419.

Sewage sludge-derived fertilizer, Terrene, was used as a precursor of adsorbents tested for removal of hydrogen sulfide from moist air. The adsorbents were obtained by pyrolysis of sulfuric acid-treated granular fertilizer at 600, 800, and 950 degrees C in...

Temperature dependences of magnetoimpedance of nanocrystalline Fe-based ribbons.

Journal of nanoscience and nanotechnology

Semirov AV, Bukreev DA, Moiseev AA, Volchkov SO, Kurlyandskaya GV, Lukshina VA, Volkova EG.
PMID: 23035492
J Nanosci Nanotechnol. 2012 Sep;12(9):7446-50. doi: 10.1166/jnn.2012.6546.

The influence of a magnetic field or the mechanical stresses on the impedance of the Fe73.5Si16.5B6Nb3Cu1 and Fe73.5Si13.5B9Nb3Cu1 ribbons was investigated in the (297 divided by 433) K temperature range. It is shown that impedance changes, which are observed...

Insight on agglomerates of gold nanoparticles in glass based on surface plasmon resonance spectrum: study by multi-spheres T-matrix method.

Journal of physics. Condensed matter : an Institute of Physics journal

Avakyan LA, Heinz M, Skidanenko AV, Yablunovski KA, Ihlemann J, Meinertz J, Patzig C, Dubiel M, Bugaev LA.
PMID: 29214983
J Phys Condens Matter. 2018 Jan 31;30(4):045901. doi: 10.1088/1361-648X/aa9fcc.

The formation of a localized surface plasmon resonance (SPR) spectrum of randomly distributed gold nanoparticles in the surface layer of silicate float glass, generated and implanted by UV ArF-excimer laser irradiation of a thin gold layer sputter-coated on the...

Magnetoimpedance and Stress-Impedance Effects in Amorphous CoFeSiB Ribbons at Elevated Temperatures.

Materials (Basel, Switzerland)

Bukreev DA, Derevyanko MS, Moiseev AA, Semirov AV, Savin PA, Kurlyandskaya GV.
PMID: 32707730
Materials (Basel). 2020 Jul 19;13(14). doi: 10.3390/ma13143216.

The temperature dependencies of magnetoimpedance (MI) and stress impedance (SI) were analyzed both in the as-quenched soft magnetic Co

Effect of pH and Surface Chemistry on the Mechanism of H(2)S Removal by Activated Carbons.

Journal of colloid and interface science

Adib F, Bagreev A, Bandosz TJ.
PMID: 10421743
J Colloid Interface Sci. 1999 Aug 15;216(2):360-369. doi: 10.1006/jcis.1999.6335.

The performances of three wood-based activated carbons as adsorbents of hydrogen sulfide were evaluated by dynamic breakthrough testing. The subsequent products of H(2)S oxidation on the carbon surfaces were analyzed. The adsorbents were studied using sorption of nitrogen, thermal...

Optoelectronics and defect levels in hydroxyapatite by first-principles.

The Journal of chemical physics

Avakyan LA, Paramonova EV, Coutinho J, Öberg S, Bystrov VS, Bugaev LA.
PMID: 29679976
J Chem Phys. 2018 Apr 21;148(15):154706. doi: 10.1063/1.5025329.

Hydroxyapatite (HAp) is an important component of mammal bones and teeth, being widely used in prosthetic implants. Despite the importance of HAp in medicine, several promising applications involving this material (e.g., in photo-catalysis) depend on how well we understand...

Initial Heats of H(2)S Adsorption on Activated Carbons: Effect of Surface Features.

Journal of colloid and interface science

Bagreev A, Adib F, Bandosz TJ.
PMID: 10534391
J Colloid Interface Sci. 1999 Nov 15;219(2):327-332. doi: 10.1006/jcis.1999.6485.

The sorption of hydrogen sulfide was studied on activated carbons of various origins by means of inverse gas chromatography at infinite dilution. The conditions of the experiment were dry and anaerobic. Prior to the experiments the surface of some...

Showing 1 to 12 of 13 entries