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Effect of Co2 Content on Biogas-to-Syngas Conversion for Methanol Production Co2含量对甲醇生产沼气制合成气的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-31 DOI: 10.1007/s11237-023-09780-7
M. M. Shorokhov, V. M. Olabin, M. Klevs, G. Zageris, V. Geža, V. S. Kharitonov
{"title":"Effect of Co2 Content on Biogas-to-Syngas Conversion for Methanol Production","authors":"M. M. Shorokhov,&nbsp;V. M. Olabin,&nbsp;M. Klevs,&nbsp;G. Zageris,&nbsp;V. Geža,&nbsp;V. S. Kharitonov","doi":"10.1007/s11237-023-09780-7","DOIUrl":"10.1007/s11237-023-09780-7","url":null,"abstract":"<div><div><p>The influence of carbon dioxide concentration in biogas on the composition of its reforming products has been studied to achieve optimal methanol synthesis conditions. A model of the biogas reforming stage is proposed. An optimal concentration of carbon dioxide in biogas essential for maximizing methanol production has been found. The effect of geometric characteristics of the mixing device on the homogeneity of the reacting flow, which is a critical for the process performance, has been established.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"207 - 213"},"PeriodicalIF":1.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797912","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
Functionalization of the Surface of Montmorillonite with Cationic Oligourethane Capable of Diisocyanate Addition 能加成二异氰酸酯的阳离子低聚聚氨酯对蒙脱土表面的功能化
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-31 DOI: 10.1007/s11237-023-09781-6
O. M. Gonchar, S. D. Nesin, Yu. V. Saveliev
{"title":"Functionalization of the Surface of Montmorillonite with Cationic Oligourethane Capable of Diisocyanate Addition","authors":"O. M. Gonchar,&nbsp;S. D. Nesin,&nbsp;Yu. V. Saveliev","doi":"10.1007/s11237-023-09781-6","DOIUrl":"10.1007/s11237-023-09781-6","url":null,"abstract":"<div><div><p>A method of montmorillonite modification with polar oligourethane containing reactive amino groups has been developed. It is shown that functionalized montmorillonite is capable of adding aromatic and aliphatic diisocyanates, as well as sequential addition of aromatic diisocyanates and glycerol, which is essential for montmorillonite application as filler for polymer materials. According to wide-angle X-ray scattering, interlayer distance d<sub>001</sub> of montmorillonite in the obtained samples varies depending on nature of oligomer macromolecules in the interlayer space that is explained with different conformation and orientation of aromatic and aliphatic oligourethane fragments.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"214 - 221"},"PeriodicalIF":1.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797913","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 the Composition of the Zeolite Framework of Natural Clinoptilolites on the Exchange of Cations Na+ On Ca2+ 天然斜沸石分子筛骨架组成对Na+和Ca2+交换的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-31 DOI: 10.1007/s11237-023-09782-5
D. A. Krysenko, V. Ya. Demchenko
{"title":"Effect of the Composition of the Zeolite Framework of Natural Clinoptilolites on the Exchange of Cations Na+ On Ca2+","authors":"D. A. Krysenko,&nbsp;V. Ya. Demchenko","doi":"10.1007/s11237-023-09782-5","DOIUrl":"10.1007/s11237-023-09782-5","url":null,"abstract":"<div><div><p>The effect of the zeolite framework composition on the selectivity and thermodynamic parameters of ion exchange is studied for the exchange reaction of Ca<sup>2+</sup> cations on Na-forms of clinoptilolites from nine deposits of Central and Southeast Europe, Northeast Asia, and North America. An increase in the thermodynamic affinity of Na-forms towards Ca<sup>2+</sup> cations is shown with a decrease in the Si/Al ratio in their zeolite framework.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"222 - 230"},"PeriodicalIF":1.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797914","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
Photocatalytic Conversion of Lignin in the Presence of Titania and Iron Titanate Films 二氧化钛和钛酸铁膜存在下木质素的光催化转化
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-31 DOI: 10.1007/s11237-023-09776-3
A. S. Kramar, M. L. Malysheva, V. M. Anishchenko, P. O. Kuzema, O. M. Stavinskaya, N. P. Smirnova, I. V. Laguta, R. V. Ivannikov, O. P. Linnik
{"title":"Photocatalytic Conversion of Lignin in the Presence of Titania and Iron Titanate Films","authors":"A. S. Kramar,&nbsp;M. L. Malysheva,&nbsp;V. M. Anishchenko,&nbsp;P. O. Kuzema,&nbsp;O. M. Stavinskaya,&nbsp;N. P. Smirnova,&nbsp;I. V. Laguta,&nbsp;R. V. Ivannikov,&nbsp;O. P. Linnik","doi":"10.1007/s11237-023-09776-3","DOIUrl":"10.1007/s11237-023-09776-3","url":null,"abstract":"<div><div><p>The photocatalytic conversion of lignin, obtained from camelina (<i>Camelina sativa</i>), over titania and iron titanate films has been studied with analysis of the products using laser desorptiopn/ionization and high-performance liquid chromatography. The photocatalytic reaction over titania films leads to the formation of the mixture of compounds, such as phenol, vanillic acid, resorcinol, and <i>p</i>-coumaryl alcohol. In the presence of iron titanate films, the predominant reaction products are vanillic acid and <i>p</i>-coumaryl. The highest antioxidant activity has been revealed in the case of lignin conversion products obtained over nitrogen-containing iron titanate films under visible light exposure.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"178 - 185"},"PeriodicalIF":1.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797911","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
Carbonized Polyaniline as a Catalyst for Hydrogenation with Molecular Hydrogen of Organic Substrates with C=C Double Bond and Nitro Group 碳化聚苯胺作为C=C双键和硝基有机底物分子氢加氢催化剂的研究
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-28 DOI: 10.1007/s11237-023-09778-1
Ya. I. Kurys, I. B. Bychko, O. O. Pariiska, O. Z. Didenko, D. O. Mazur, P. E. Strizhak, V. G. Koshechko, V. D. Pokhodenko
{"title":"Carbonized Polyaniline as a Catalyst for Hydrogenation with Molecular Hydrogen of Organic Substrates with C=C Double Bond and Nitro Group","authors":"Ya. I. Kurys,&nbsp;I. B. Bychko,&nbsp;O. O. Pariiska,&nbsp;O. Z. Didenko,&nbsp;D. O. Mazur,&nbsp;P. E. Strizhak,&nbsp;V. G. Koshechko,&nbsp;V. D. Pokhodenko","doi":"10.1007/s11237-023-09778-1","DOIUrl":"10.1007/s11237-023-09778-1","url":null,"abstract":"<div><div><p>Nitrogen-doped carbon, which is characterized by a large surface area and the presence of micro- and mesopores, has been obtained by pyrolysis of polyaniline (emeraldine base) in a reducing atmosphere. It is found that the surface layer of such material contains nitrogen in pyridinic, pyrrolic, and quaternary configurations, as well as hydroxyl and carbonyl groups. It is shown that carbonized polyaniline reveals catalytic properties in the processes of gas-phase and liquid-phase hydrogenation with molecular hydrogen of organic substrates containing C=C double bond and nitro group (ethylene, α-methylstyrene, p-nitrotoluene) are revealed.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"193 - 199"},"PeriodicalIF":1.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797688","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
Catalytic Properties of Rh-Containing Carbon Dots on SiO2, Al2O3, and ZrO2 Oxide Supports in the Glycerol Conversion 含铑碳点在SiO2、Al2O3和ZrO2氧化物载体上催化甘油转化的性能
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-10-28 DOI: 10.1007/s11237-023-09779-0
G. R. Kosmambetova, N. V. Vlasenko, L. B. Kharkova, O. H. Yanko, V. M. Ogenko, V. I. Grytsenko, O. V. Shvets
{"title":"Catalytic Properties of Rh-Containing Carbon Dots on SiO2, Al2O3, and ZrO2 Oxide Supports in the Glycerol Conversion","authors":"G. R. Kosmambetova,&nbsp;N. V. Vlasenko,&nbsp;L. B. Kharkova,&nbsp;O. H. Yanko,&nbsp;V. M. Ogenko,&nbsp;V. I. Grytsenko,&nbsp;O. V. Shvets","doi":"10.1007/s11237-023-09779-0","DOIUrl":"10.1007/s11237-023-09779-0","url":null,"abstract":"<div><div><p>It is shown that deposition of Rh-CD (CDs are carbon dots)onto SiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and ZrO<sub>2</sub> oxide supports contributes to the appearance of the catalytic activity in the process of glycerol conversion. It is established that acrolein and acetaldehyde are oxygen-containing products in this reaction system. It is found that the yield of reaction products increases when using a support with a smaller specific surface area, which is caused by an increase in the surface concentration of acid sites.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"200 - 206"},"PeriodicalIF":1.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797689","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
Clusteroluminescence of Unconjugated Polymers: A Review 非共轭聚合物簇发光研究进展
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-08-02 DOI: 10.1007/s11237-023-09768-3
T. V. Sakhno, Yu. E. Sakhno, S. Ya. Kuchmiy
{"title":"Clusteroluminescence of Unconjugated Polymers: A Review","authors":"T. V. Sakhno,&nbsp;Yu. E. Sakhno,&nbsp;S. Ya. Kuchmiy","doi":"10.1007/s11237-023-09768-3","DOIUrl":"10.1007/s11237-023-09768-3","url":null,"abstract":"<div><div><p>The current state of research on non-conventional luminescence of unconjugated polymers, which is caused by the occurrence of through-space conjugation due to the overlapping of electronic orbitals of atoms in aggregates formed at high concentrations of substances in solutions or the solid state, is considered. The luminescent properties of different types of polymers containing oxygen, nitrogen, sulfur, silicon, boron, phosphorus is analyzed. The possibilities of the practical applications of polymer cluster luminophores in the fields such as ecosystem monitoring, medicine, biology, encryption, forensics, and optoelectronics are shown.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 2","pages":"75 - 106"},"PeriodicalIF":1.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4070279","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
Obtaining, Structure, and Antimicrobial Properties of Nanocomposite Coatings Based on Polyurethane and Silver Nanoparticles 聚氨酯与银纳米复合涂层的制备、结构及抗菌性能研究
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-08-01 DOI: 10.1007/s11237-023-09772-7
E. A. Lysenkov, O. V. Stryutsky, L. P. Klymenko, M. A. Gumenna, D. V. Kozachuk, V. V. Shevchenko
{"title":"Obtaining, Structure, and Antimicrobial Properties of Nanocomposite Coatings Based on Polyurethane and Silver Nanoparticles","authors":"E. A. Lysenkov,&nbsp;O. V. Stryutsky,&nbsp;L. P. Klymenko,&nbsp;M. A. Gumenna,&nbsp;D. V. Kozachuk,&nbsp;V. V. Shevchenko","doi":"10.1007/s11237-023-09772-7","DOIUrl":"10.1007/s11237-023-09772-7","url":null,"abstract":"<div><div><p>A new method of obtaining of antimicrobial coatings based on segmented polyurethanes and silver nanoparticles (SNP) stabilized by an ionic liquid is proposed. The effect of silver nanoparticles on the structure and characteristics of the obtained materials have been studied using X-ray scattering, electron microscopy, infrared spectroscopy, differential scanning calorimetry, and the microbiological method of diffusion in agar. It is established that in the polymer matrix, SNPs with sizes from 7 to 19 nm are formed, and their size depends on the content of the stabilizer. The obtained nanocomposite coatings exhibit high antimicrobial activity against bacteria (S. aureus, E. coli) and fungi (C. albicans).</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 2","pages":"126 - 135"},"PeriodicalIF":1.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4008284","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
Obtaining of Luminescent Sulfur Nanoparticles in the L-Cysteine–Citrate–Sodium Sulfide System l -半胱氨酸-柠檬酸盐-硫化钠体系中发光硫纳米粒子的制备
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-07-31 DOI: 10.1007/s11237-023-09771-8
V. G. Pylypko, P. M. Fochuk
{"title":"Obtaining of Luminescent Sulfur Nanoparticles in the L-Cysteine–Citrate–Sodium Sulfide System","authors":"V. G. Pylypko,&nbsp;P. M. Fochuk","doi":"10.1007/s11237-023-09771-8","DOIUrl":"10.1007/s11237-023-09771-8","url":null,"abstract":"<div><div><p>An obtaining of sulfur nanoparticles by hydrothermal method in aqueous solution of L-cysteine, citrate ions, and sodium sulfide is proposed. The optical properties of the obtained sulfur nanoparticles have been studied by UV-Visible absorption and photoluminescence spectroscopies. Transmission and scanning electron microscopies and atomic force microscopy indicate that sulfur nanoparticles are quasi-spherical, their diameter depends on heat treatment time reaching an average size of 28 nm after 8 h of heating at 378 K. The nanoparticles exhibit photoluminescence in the range from 388 to 515 nm depending on the excitation wavelength. The obtained colloid systems have lasting sedimentation stability and high photoluminescence intensity, which make them promising for further wide application.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 2","pages":"120 - 125"},"PeriodicalIF":1.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5182428","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
Photocatalytic Activity of Electrochemically Formed Ag2O in the Process of CO2 Reduction with Water Vapor Under the Effect of Visible Light 可见光作用下水蒸气还原CO2过程中电化学生成Ag2O的光催化活性
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-07-29 DOI: 10.1007/s11237-023-09770-9
M. L. Ovcharov, A. M. Mishura, V. M. Granchak
{"title":"Photocatalytic Activity of Electrochemically Formed Ag2O in the Process of CO2 Reduction with Water Vapor Under the Effect of Visible Light","authors":"M. L. Ovcharov,&nbsp;A. M. Mishura,&nbsp;V. M. Granchak","doi":"10.1007/s11237-023-09770-9","DOIUrl":"10.1007/s11237-023-09770-9","url":null,"abstract":"<div><div><p>Film-like Ag<sub>2</sub>O coatings have been obtained using electrochemical method, and their photoelectrochemical and spectral properties have been studied. The photocatalytic behavior of these samples in the process of reduction of carbon dioxide with water vapor has been studied. The possibility of formation of a number of organic compounds (acetaldehyde, acetone, isopropyl and ethyl alcohols, methane) upon irradiation of the systems with visible light has been established.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 2","pages":"112 - 119"},"PeriodicalIF":1.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5116137","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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