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Photocatalytic Reduction of Co2 Under Visible Light with the Participation of Binary Cu2O/Ag2O Nanoheterostructures 二元Cu2O/Ag2O纳米异质结构参与下可见光下Co2的光催化还原
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-10-07 DOI: 10.1007/s11237-022-09737-2
M. L. Ovcharov, A. M. Mishura, O. A. Mikhalyova, V. M. Granchak
{"title":"Photocatalytic Reduction of Co2 Under Visible Light with the Participation of Binary Cu2O/Ag2O Nanoheterostructures","authors":"M. L. Ovcharov,&nbsp;A. M. Mishura,&nbsp;O. A. Mikhalyova,&nbsp;V. M. Granchak","doi":"10.1007/s11237-022-09737-2","DOIUrl":"10.1007/s11237-022-09737-2","url":null,"abstract":"<div><div><p>Foam-like binary Cu<sub>2</sub>O/Ag<sub>2</sub>O nanoheterostructures have been obtained by an electrochemical method. Their photoelectrochemical and spectral properties have been studied. The photocatalytic properties of these composites in the process of gas-phase reduction of carbon dioxide with water vapor have been studied. The formation of binary nanoheterostructures leads to an increase in methane yield and an increase in the amount of other organic products (acetaldehyde, ethylene, and ethanol) while the system is irradiated with visible light when compared to Cu<sub>2</sub>O. This effect can be explained by the formation of a nanostructured Cu<sub>2</sub>O/Ag<sub>2</sub>O binary composite with a mutually consistent energy profile.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 3","pages":"205 - 212"},"PeriodicalIF":1.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4322076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Mechanochemical and Sonochemical Methods of Preparation of TiO2/ZrO2 Composites on Photocatalytic Performance in Prometrine Decomposition 机械化学和声化学制备TiO2/ZrO2复合材料对promemine分解光催化性能的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-10-07 DOI: 10.1007/s11237-022-09735-4
O. V. Sachuk, V. A. Zazhigalov, O. V. Kiziun, N. L. Hes, A. M. Mylin, L. Yo. Kotynska, L. S. Kuznetsova, S. M. Shcherbakov, V. M. Kordan
{"title":"Influence of Mechanochemical and Sonochemical Methods of Preparation of TiO2/ZrO2 Composites on Photocatalytic Performance in Prometrine Decomposition","authors":"O. V. Sachuk,&nbsp;V. A. Zazhigalov,&nbsp;O. V. Kiziun,&nbsp;N. L. Hes,&nbsp;A. M. Mylin,&nbsp;L. Yo. Kotynska,&nbsp;L. S. Kuznetsova,&nbsp;S. M. Shcherbakov,&nbsp;V. M. Kordan","doi":"10.1007/s11237-022-09735-4","DOIUrl":"10.1007/s11237-022-09735-4","url":null,"abstract":"<div><div><p>Nanosized TiO<sub>2</sub>/ZrO<sub>2</sub>=1:1 composites have been obtained by mechanochemical, ultrasonic, and coprecipitation methods. It is shown that mechanochemical and ultrasonic treatments of a TiO<sub>2</sub> and ZrO<sub>2</sub> mixture lead to size reduction of oxide particles, changes in X-ray diffraction spectra, the formation of a mesoporous structure of TiO<sub>2</sub>/ZrO<sub>2</sub> samples, and an increase in their photocatalytic activity in the reaction of Gesagard (prometryn) herbicide destruction in an aqueous medium when compared to a mechanical TiO<sub>2</sub> and ZrO<sub>2</sub> mixture. It is found that the sample obtained by coprecipitation is X-ray amorphous with a well-developed surface, however, it is significantly inferior to samples obtained by alternative methods in terms of photoactivity.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 3","pages":"190 - 197"},"PeriodicalIF":1.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4322106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polaron States of 3,4-Ethylenedioxythiophene Oligomers 3,4-乙烯二氧噻吩低聚物的极化子态
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09727-4
M. I. Terebinska, O. V. Filonenko, O. I. Tkachuk, A. M. Datsyuk, V. V. Lobanov
{"title":"Polaron States of 3,4-Ethylenedioxythiophene Oligomers","authors":"M. I. Terebinska,&nbsp;O. V. Filonenko,&nbsp;O. I. Tkachuk,&nbsp;A. M. Datsyuk,&nbsp;V. V. Lobanov","doi":"10.1007/s11237-022-09727-4","DOIUrl":"10.1007/s11237-022-09727-4","url":null,"abstract":"<div><div><p>The electronic and spatial structure of 3,4-ethylenedioxythiophene oligomer containing 12 units (E12) in 0, +1, +2, +3, and +4 charge states has been calculated by the method of density functional theory (B3LYP 6-31 G**). It is shown that electron conductivity in the oxidized oligomer E12<sup>4+</sup> is provided by two bipolarons at the ends of the chain.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"105 - 108"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4958615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Acid–Base Characteristics of Zeolite Catalysts on Oxidative Dehydrogenation of Propane with Carbon Dioxide 沸石催化剂酸碱特性对丙烷二氧化碳氧化脱氢反应的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09729-2
A. Yu. Kapran, S. M. Orlyk
{"title":"Effect of Acid–Base Characteristics of Zeolite Catalysts on Oxidative Dehydrogenation of Propane with Carbon Dioxide","authors":"A. Yu. Kapran,&nbsp;S. M. Orlyk","doi":"10.1007/s11237-022-09729-2","DOIUrl":"10.1007/s11237-022-09729-2","url":null,"abstract":"<div><div><p>The peculiarities of propane dehydrogenation with carbon dioxide over zeolite catalysts of different structural types, in particular, BEA with incorporated Zn, Ga (Ta, Nb) heteroelements have been analyzed. The role of CO<sub>2</sub> as an oxidant, the effect of acid–base characteristics on propylene selectivity and yield, the stability of catalyst operation, and the routes of activation of reagents on acid–base sites of the surface are considered.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"118 - 129"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4959302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mono- and Few-Layer Nitrogen-Containing Graphenes as Sensitive Layers of Electrochemical Sensors for Selective Determination of Dopamine and Uric Acid in the Presence of Ascorbic Acid 单层和少层含氮石墨烯作为电化学传感器在抗坏血酸存在下选择性测定多巴胺和尿酸的敏感层
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09728-3
O. A. Kozarenko, A. S. Kondratyuk, V. S. Dyadyun, V. L. Karbivskiy, V. G. Koshechko, V. D. Pokhodenko
{"title":"Mono- and Few-Layer Nitrogen-Containing Graphenes as Sensitive Layers of Electrochemical Sensors for Selective Determination of Dopamine and Uric Acid in the Presence of Ascorbic Acid","authors":"O. A. Kozarenko,&nbsp;A. S. Kondratyuk,&nbsp;V. S. Dyadyun,&nbsp;V. L. Karbivskiy,&nbsp;V. G. Koshechko,&nbsp;V. D. Pokhodenko","doi":"10.1007/s11237-022-09728-3","DOIUrl":"10.1007/s11237-022-09728-3","url":null,"abstract":"<div><div><p>A comparative study of electrochemical properties of mono- and few-layer samples of nitrogen-doped graphene as nanosized sensor materials for the qualitative and quantitative determination of dopamine and uric acid has been performed. It is found that the few-layer graphene (NGr(f)) is characterized by high sensibility to dopamine, while monolayer one (NGr(m)) is characterized by high sensibility to uric acid in presence of considerable concentrations of ascorbic acid. XPS results show that the nitrogen content is 8.3 at.% in NGr(f) and 6.2 at.% in NGr(m). The analysis of Raman spectra allows to establish, that NGr(f) and NGr(m) have a defective structure. NGr(f) is characterized mainly by edge defects, while NGr(m) is characterized by vacancies, what obviously predetermines the differences in electrochemical properties of these materials.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"109 - 117"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4961398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protic Oligosilsesquioxane Dicationic Ionic Liquids with Two Types of Ionic Sites in Organic Frame 有机骨架中两类离子位的质子低聚硅氧烷定向离子液体
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09732-7
V. V. Shevchenko, M. A. Gumenna, N. S. Klimenko, O. V. Stryutsky, V. V. Trachevsky, L. L. Kovalenko, V. V. Kravchenko
{"title":"Protic Oligosilsesquioxane Dicationic Ionic Liquids with Two Types of Ionic Sites in Organic Frame","authors":"V. V. Shevchenko,&nbsp;M. A. Gumenna,&nbsp;N. S. Klimenko,&nbsp;O. V. Stryutsky,&nbsp;V. V. Trachevsky,&nbsp;L. L. Kovalenko,&nbsp;V. V. Kravchenko","doi":"10.1007/s11237-022-09732-7","DOIUrl":"10.1007/s11237-022-09732-7","url":null,"abstract":"<div><div><p>A method of synthesis of oligomeric siloxane protic ionic liquids capable of condensation reactions has been developed as starting compounds in the obtaining proton exchange membranes for fuel cells. Their organic frame is characterized by a combination of amine centers of different basicity (aliphatic and imidazole types) neutralized with ethanesulfonic acid and secondary hydroxyl groups. A change in the degree of neutralization of the amine centers significantly affects the structure of the compounds and the mechanism of proton migration. The conductivity of the obtained compounds reaches 9.8·10<sup>–4</sup> S/cm at 100°C in the absence of moisture.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"143 - 149"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4959303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Co-Fe/Al2O3 Nanocomposite Catalysts of the Process of CO2 Hydrogenation Co-Fe/Al2O3纳米复合催化剂在CO2加氢过程中的应用
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09731-8
A. G. Dyachenko, O. V. Ischenko, M. V. Borysenko, S. V. Gaidai, A. V. Yatsymyrskyi, G. G. Tsapyuk, O. V. Pryhunova, O. O. Kostyrko
{"title":"Co-Fe/Al2O3 Nanocomposite Catalysts of the Process of CO2 Hydrogenation","authors":"A. G. Dyachenko,&nbsp;O. V. Ischenko,&nbsp;M. V. Borysenko,&nbsp;S. V. Gaidai,&nbsp;A. V. Yatsymyrskyi,&nbsp;G. G. Tsapyuk,&nbsp;O. V. Pryhunova,&nbsp;O. O. Kostyrko","doi":"10.1007/s11237-022-09731-8","DOIUrl":"10.1007/s11237-022-09731-8","url":null,"abstract":"<div><div><p>Effective catalysts of CO<sub>2</sub> hydrogenation towards methane were obtained by impregnation of aluminum oxide with cobalt and iron nitrates. The catalysts have been characterized by XRD, SEM-EDX, argon physisorption, and TPD with mass-spectroscopy analysis. It is shown that an increase in the amount of applied Co-Fe active mass in the composition of a nanocomposite catalyst leads to an increase in the CO<sub>2</sub> conversion and CH<sub>4</sub> yield.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"134 - 142"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4958608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Brownian Photomotors Based on Organic Compounds: A Review 基于有机化合物的布朗光电二极管研究进展
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09726-5
M. L. Dekhtyar
{"title":"Brownian Photomotors Based on Organic Compounds: A Review","authors":"M. L. Dekhtyar","doi":"10.1007/s11237-022-09726-5","DOIUrl":"10.1007/s11237-022-09726-5","url":null,"abstract":"<div><div><p>The main prerequisites necessary for the construction of molecular motors, in particular, organic compound-based light-driven motors, are considered and universal requirements for their operation are formulated. Various types of Brownian motors differing in the forms of directed motion are analyzed. Development prospects and molecular design strategies are provided for such nanodevices.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"90 - 104"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4958614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Kinetics of Low-Temperature Conversion of Carbon Monoxide with Water Vapor on Cu-Zn-Al Oxide Catalysts Cu-Zn-Al氧化物催化剂上一氧化碳与水蒸气低温转化动力学
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09730-9
O. Ya. Loboiko, L. L. Tovazhnyanskyy, V. O. Loboiko
{"title":"Kinetics of Low-Temperature Conversion of Carbon Monoxide with Water Vapor on Cu-Zn-Al Oxide Catalysts","authors":"O. Ya. Loboiko,&nbsp;L. L. Tovazhnyanskyy,&nbsp;V. O. Loboiko","doi":"10.1007/s11237-022-09730-9","DOIUrl":"10.1007/s11237-022-09730-9","url":null,"abstract":"<div><div><p>According to the analysis of literature data and our experimental results, a kinetic equation for the low-temperature conversion of carbon monoxide with water vapor over a highly active copper–zinc–aluminum oxide catalyst is proposed. It is shown that the obtained kinetic parameters can be used to calculate the reaction rate and optimize the process.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"130 - 133"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4959935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Cooperative Interactions on the Spin Crossover Phenomenon in Iron(II) Complexes: A Review 协同相互作用对铁(II)配合物中自旋交叉现象的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2022-08-25 DOI: 10.1007/s11237-022-09725-6
M. L. Seredyuk, K. O. Znovjyak, I. O. Fritsky
{"title":"Influence of Cooperative Interactions on the Spin Crossover Phenomenon in Iron(II) Complexes: A Review","authors":"M. L. Seredyuk,&nbsp;K. O. Znovjyak,&nbsp;I. O. Fritsky","doi":"10.1007/s11237-022-09725-6","DOIUrl":"10.1007/s11237-022-09725-6","url":null,"abstract":"<div><div><p>The theoretical principles of a spin transition phenomenon in pseudo-octahedral iron(II) complexes are summarized. The intrinsic transfer of electrons between d-orbitals of a central ion under the action of external factors and the corresponding changes in the structural, spectral, and magnetic characteristics of matter are considered. Cooperative interactions that lead to the appearance of hysteresis of physical properties have been studied in detail. Perspective areas of practical applications of compounds with spin transitions have been provided.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"58 2","pages":"75 - 89"},"PeriodicalIF":1.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4964416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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