Электронный каталог
Язык издания:Английский
Каталог:Статьи
Результат поиска:
891-900 из 954
периодические издания(Журналы)
PANSHINA S. YU.
Panshina, S. Yu. Synthesis of Cucurbit [6] uril Using 1-Hydroxyethylidene-1,1-Diphosphonic Acid as a “Green Catalyst” [Text] / S. Yu. Panshina, A. A. Bakibaev , A. N. Guslyakov [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 5-13. - Bibliogr.: p. 10-11 ISSN 2518-718Х.
УДК:
544.4
Предметная рубрика
- Chemical kinetics. Catalysis
Аннотация
In this work, 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) was used for the first time as a catalyst for “Green chemistry” in the synthesis of cucurbit[6]uril in an aqueous medium
Ключевые слова
cucurbit[6]uril, 1-hydroxyethylidene-1,1-diphosphonic acid, glycoluril, paraformaldehyde, oligomer
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZHINZHILO V. А.
Zhinzhilo, V. А. Coordinating Polymers Based on Nickel(II) and Cobalt(II) Trimesinates as Promising Adsorbents of Organic Dyes [Text] / V. А. Zhinzhilo, V. А. Litvinova , V. M. Lyamina [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - Р. 239-253. - Bibliogr.: р. 249-250 ISSN 2518-718Х.
УДК:
544
Предметная рубрика
- Physical chemistry
Аннотация
In this work, metal organic framework structures based on nickel and cobalt trimesinates were synthesized by a modified procedure by reacting nickel acetate and cobalt nitrate with trimesic acid in the presence of alkali
Ключевые слова
metal organic framework structures, coordination polymers, trimesic acid, pollutants, thermodynamic parameters, adsorption capacity
Казахстаника
0/0 Свободно
периодические издания(Журналы)
MAMYTBEKOV G. K.
Mamytbekov, G. K. Synthesis, Structure and Properties of Hybrid Composite Bentonite-Based Materials [Text] / G. K. Mamytbekov, Zh. I. Beksultanov , V. I. Bannykh [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - С. 267-282. - Bibliogr.: р. 277-279 ISSN 2518-718Х.
Аннотация
A systematic study of the synthesis of hybrid composite materials based on synthetic (poly-Nvinylpyrrolidone) and natural (agar-agar) macromolecules in the presence of plasticizers (PEG-400, glycerin) and mineral filler bentonite has been performed by the method of electron irradiation
Ключевые слова
composition material , polymer-inorganic compositions , electron irradiation, bentonite, synthetic polymers, natural polymers
Казахстаника
0/0 Свободно
периодические издания(Журналы)
FOMIN V. N.
Fomin, V. N. Method for Qualitative and Quantitative Analysis of Ancient Lead Enamel Using Laser Inducted Breakdown Spectroscopy [Text] / V. N. Fomin, E. R. Usmanova , E. F. Gyul [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 107-117. - Bibliogr.: p. 114-115 ISSN 2518-718Х.
УДК:
543.4
Предметная рубрика
- Spectral methods of analysis. Optical analysis methods
Аннотация
The article discusses the method of laser spark emission spectroscopy, which is used to analyze archaeological enamel samples from the site of Juchi Khan (XIV century)
Ключевые слова
chemometrics, cluster analysis, low-melting lead enamels, probabilistic deterministic design of experiment, archeology, settlement of Jochi Khan
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZULFUGAROVA S. M.
Zulfugarova, S. M. Synthesis of Transition Metal Ferrites (Co, Cu, Ni, Mn) by the Sol-Gel Method with Combustion and the Use of Microwave Processing [Text] / S. M. Zulfugarova, G. R. Azimova , Z. F. Aleskerova [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 118-135. - Bibliogr.: p. 130-134 ISSN 2518-718Х.
УДК:
546
Предметная рубрика
- Inorganic chemistry
Аннотация
This review considers recent work on the synthesis of transition metal ferrites (Co, Cu, Ni, Mn) by sol-gel method with combustion, as well as the effect of microwave radiation
Ключевые слова
ferrites, sol-gel method with combustion, complexing agents, microwave technology, microwave power, dispersion, texture, specific surface area, particle size
Казахстаника
0/0 Свободно
периодические издания(Журналы)
HOUBI A.
Houbi, A. Synthesis and Microwave Absorption Properties of (Ni0.5Zn0.5Fe2O4/CI/CB) Ternary Composites [Text] / A. Houbi, A. A. Zharmenov; Y. Atassi [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 142-151. - Bibliogr.: p. 149-150 ISSN 2518-718Х.
УДК:
542.9
Предметная рубрика
- Chemical reactions. Selected chemical methods
Аннотация
In this work, ternary composites of NiZn ferrite/carbonyl iron/carbon black (Ni0.5Zn0.5Fe2O4/CI/CB) were prepared via two stages
Ключевые слова
NiZn ferrite, сarbonyl iron, сarbon black, reflection loss, absorption bandwidth, matching frequency, paraffin wax matrix, surface density
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BAYESHOV A.
Bayeshov, A. Electrochemical Method for Producing a TiO2 Film with Photocatalytic Properties [Text] / A. Bayeshov, A. S. Kadirbayeva , A. K. Bayeshova [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 152-159. - Bibliogr.: p. 158-159 ISSN 2518-718Х.
УДК:
544.653
Предметная рубрика
- Chemistry of electrode processes. Electrochemical reactions as electrode reactions. Electrochemical behavior of substances. Electrochemical properties
Аннотация
The purpose of this work is to study the production process of titanium dioxide during anode polarization in sulfuric acid and hydrochloric acid solutions
Ключевые слова
titanium dioxide, coating , electrode, electrolyzer, polarization, voltage, sulfuric acid, hydrochloric acid
Казахстаника
0/0 Свободно
периодические издания(Журналы)
SHELKOVNIKOV V. V.
Shelkovnikov, V. V. Study of the Methionine Electrooxidation at an Electrode Modified with Vitamin B12 and Multi-Walled Carbon Nanotubes [Text] / V. V. Shelkovnikov, A. M. Altyev , M. S. Fryanova // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 99-106. - Bibliogr.: p. 104-105 ISSN 2518-718Х.
УДК:
543.55
Предметная рубрика
- Electroanalytical methods of analysis. Electrochemical methods of analysis
Аннотация
The electrochemical behavior of methionine at an electrode modified with vitamin B12 and multi-walled carbon nanotubes has been studied in this work
Ключевые слова
methionine, modified electrode, vitamin B12, electrooxidation, cobalamin, electron, proton, multi-walled carbon nanotubes
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BHIMANWAR R.
Bhimanwar, R. Prospective Hybrid Molecules with Dual Anti-Viral and Anti-Thrombotic Activity Against the SARS-CoV-2 Infection and Its Associated Complications Employing in Silico Studies [Text] / R. Bhimanwar, A. Thomas , L. Kothapalli [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 76-87. - Bibliogr.: p. 85-86 ISSN 2518-718Х.
УДК:
530.145
Предметная рубрика
- Quantum theory. Quantum mechanics
Аннотация
This study investigates the in Silico design of hybrid molecules with antiviral and an- tithrombotic properties
Ключевые слова
COVID-19, molecular docking, in Silico, hybrid molecule, respiratory tract infections
Казахстаника
0/0 Свободно
периодические издания(Журналы)
TYANAKH S.
Tyanakh, S. Kinetics of Thermolysis of a Low-Temperature Tar in the Presence of a Catalyzer Agent with Deposited Metals [Text] / S. Tyanakh, M. I. Baikenov , A. M. Gulmaliev [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 4. - Р. 89-98. - Bibliogr.: p. 95-96 ISSN 2518-718Х.
УДК:
541
Предметная рубрика
- Theoretical chemistry
Аннотация
The thermal decomposition of low-temperature coal tar (LTCT) obtained from the coals of Shubarkol Komir JSC of the Republic of Qazaqstan in the presence of nanocatalysts with metal oxides (iron, cobalt and nickel) supported on microsilicate was studied for the first time
Ключевые слова
kinetics, accelerant, microsilica, low-temperature coal tar, thermogravimetric analysis, iron, nickel, cobalt
Казахстаника
0/0 Свободно
PANSHINA S. YU.
SYNTHESIS OF CUCURBIT [6] URIL USING 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID AS A “GREEN CATALYST”
периодические издания(Журналы)
0/0 Свободно
ZHINZHILO V. А.
COORDINATING POLYMERS BASED ON NICKEL(II) AND COBALT(II) TRIMESINATES AS PROMISING ADSORBENTS OF ORGANIC DYES
периодические издания(Журналы)
0/0 Свободно
MAMYTBEKOV G. K.
SYNTHESIS, STRUCTURE AND PROPERTIES OF HYBRID COMPOSITE BENTONITE-BASED MATERIALS
периодические издания(Журналы)
0/0 Свободно
FOMIN V. N.
METHOD FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF ANCIENT LEAD ENAMEL USING LASER INDUCTED BREAKDOWN SPECTROSCOPY
периодические издания(Журналы)
0/0 Свободно
ZULFUGAROVA S. M.
SYNTHESIS OF TRANSITION METAL FERRITES (CO, CU, NI, MN) BY THE SOL-GEL METHOD WITH COMBUSTION AND THE USE OF MICROWAVE PROCESSING
периодические издания(Журналы)
0/0 Свободно
HOUBI A.
SYNTHESIS AND MICROWAVE ABSORPTION PROPERTIES OF (NI0.5ZN0.5FE2O4/CI/CB) TERNARY COMPOSITES
периодические издания(Журналы)
0/0 Свободно
BAYESHOV A.
ELECTROCHEMICAL METHOD FOR PRODUCING A TIO2 FILM WITH PHOTOCATALYTIC PROPERTIES
периодические издания(Журналы)
0/0 Свободно
SHELKOVNIKOV V. V.
STUDY OF THE METHIONINE ELECTROOXIDATION AT AN ELECTRODE MODIFIED WITH VITAMIN B12 AND MULTI-WALLED CARBON NANOTUBES
периодические издания(Журналы)
0/0 Свободно
BHIMANWAR R.
PROSPECTIVE HYBRID MOLECULES WITH DUAL ANTI-VIRAL AND ANTI-THROMBOTIC ACTIVITY AGAINST THE SARS-COV-2 INFECTION AND ITS ASSOCIATED COMPLICATIONS EMPLOYING IN SILICO STUDIES
периодические издания(Журналы)
0/0 Свободно
TYANAKH S.
KINETICS OF THERMOLYSIS OF A LOW-TEMPERATURE TAR IN THE PRESENCE OF A CATALYZER AGENT WITH DEPOSITED METALS
периодические издания(Журналы)
0/0 Свободно