Theoretical and Experimental Chemistry最新文献

筛选
英文 中文
Mechanochemical and Sonochemical Obtaining of Nanosized Oxides Materials and Catalysts: A Review 纳米氧化物材料和催化剂的机械化学和声化学制备:综述
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-06 DOI: 10.1007/s11237-024-09797-6
V. Zazhigalov, O. Sachuk, O. Kiziun, O. Diyuk, I. Bacherikova
{"title":"Mechanochemical and Sonochemical Obtaining of Nanosized Oxides Materials and Catalysts: A Review","authors":"V. Zazhigalov, O. Sachuk, O. Kiziun, O. Diyuk, I. Bacherikova","doi":"10.1007/s11237-024-09797-6","DOIUrl":"https://doi.org/10.1007/s11237-024-09797-6","url":null,"abstract":"","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141377356","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
Methanation of Carbon Dioxide on Co-Containing Aluminosilicate Catalysts 在共含硅酸铝催化剂上甲烷化二氧化碳
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-04 DOI: 10.1007/s11237-024-09803-x
Sh.F. Tagiyeva, S. N. Osmanova, A. I. Rustamova, D. B. Tagiyev, E. H. Ismailov
{"title":"Methanation of Carbon Dioxide on Co-Containing Aluminosilicate Catalysts","authors":"Sh.F. Tagiyeva, S. N. Osmanova, A. I. Rustamova, D. B. Tagiyev, E. H. Ismailov","doi":"10.1007/s11237-024-09803-x","DOIUrl":"https://doi.org/10.1007/s11237-024-09803-x","url":null,"abstract":"<p>Results of the study of CO<sub>2</sub> methanation on Co-containing catalysts based on Siral aluminosilicates with different SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios (1, 10, and 40) are presented. It is shown that methane is the main product at temperatures up to 573 K, its yield varies depending on the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio of aluminosilicate. Carbon monoxide is formed along with methane at temperatures above 573 K. Maximum methane yields of 55% and 41% (at 573 K) are achieved on Co/Siral-1 and Co/Siral-10 catalysts. It is shown that catalysts reduced in a hydrogen flow are characterized by the presence of superpara/ferromagnetic particles and magnetic resonance parameters of their EMR spectra significantly depends on the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio of the aluminosilicate. It is assumed that the superpara/ferromagnetic particles formed during high-temperature hydrogen treatment of Co-containing aluminosilicates are catalytically active particles in the methanation of carbon dioxide.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259180","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 Sterically Shielded Carbene Complexes of Palladium in C–C and C–N Coupling Reactions of Haloarenes 卤代烃 C-C 和 C-N 偶联反应中钯的立体屏蔽碳烯配合物的催化特性
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-03 DOI: 10.1007/s11237-024-09801-z
V. S. Saberov, N. Korotkikh, A. Avksentiev, V. Yenya, G. Rayenko
{"title":"Catalytic Properties of Sterically Shielded Carbene Complexes of Palladium in C–C and C–N Coupling Reactions of Haloarenes","authors":"V. S. Saberov, N. Korotkikh, A. Avksentiev, V. Yenya, G. Rayenko","doi":"10.1007/s11237-024-09801-z","DOIUrl":"https://doi.org/10.1007/s11237-024-09801-z","url":null,"abstract":"","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141271287","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
Catalysis of the Transesterification Reaction of Alkyl Benzoates and Vegetable Oils by Carbonates, Carbene, and Anionite 碳酸盐、碳烯和阴离子石对苯甲酸烷基酯和植物油酯交换反应的催化作用
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-03 DOI: 10.1007/s11237-024-09802-y
A. S. Avksentiev, V. Sh. Saberov, G. F. Rayenko, A. B. Ryabitsky, E. V. Polunkin, S. M. Pleskun, N. I. Korotkikh
{"title":"Catalysis of the Transesterification Reaction of Alkyl Benzoates and Vegetable Oils by Carbonates, Carbene, and Anionite","authors":"A. S. Avksentiev, V. Sh. Saberov, G. F. Rayenko, A. B. Ryabitsky, E. V. Polunkin, S. M. Pleskun, N. I. Korotkikh","doi":"10.1007/s11237-024-09802-y","DOIUrl":"https://doi.org/10.1007/s11237-024-09802-y","url":null,"abstract":"<p>The catalytic effect of alkali metal carbonates, in situ generated carbene, and anionite in the transesterification reaction of alkyl benzoates with methanol, ethanol, benzyl alcohol, and cyclohexanol, as well as vegetable oils with methanol and ethanol was studied. Catalytic reactions with methanol occur at room temperature with yields close to quantitative. The reactions of the vegetable oils in the presence of potassium carbonate with small amounts of methanol or ethanol (3.2 eq) at room temperature lead to high yields of biodiesel fuel and are suitable for industrial use.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141258924","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 Sulfur Doping of Crystalline Carbon Nitride on Photocatalytic Hydrogen Evolution from Alcohol–Aqueous Solutions Under Visible Light 氮化碳晶体掺硫对可见光下酒精水溶液光催化氢气生成的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-03 DOI: 10.1007/s11237-024-09798-5
M. L. Ovcharov, P. I. Glukhova, G. V. Korzhak, O. S. Kutsenko, T. R. Stara, S. Ya. Kuchmiy
{"title":"Influence of Sulfur Doping of Crystalline Carbon Nitride on Photocatalytic Hydrogen Evolution from Alcohol–Aqueous Solutions Under Visible Light","authors":"M. L. Ovcharov, P. I. Glukhova, G. V. Korzhak, O. S. Kutsenko, T. R. Stara, S. Ya. Kuchmiy","doi":"10.1007/s11237-024-09798-5","DOIUrl":"https://doi.org/10.1007/s11237-024-09798-5","url":null,"abstract":"<p>The influence of sulfur on the morphology, spectral, and photocatalytic properties of bulk (S-g-C<sub>3</sub>N<sub>4</sub>) and crystalline carbon nitride (S-CGCN), obtained by the pyrolysis of melamine–S<sub>8</sub> mixtures and additional thermal treatment of S-g-C<sub>3</sub>N<sub>4</sub> in the eutectic melt of KCl and LiCl salts, has been investigated. It is shown that crystalline carbon nitride obtained in the presence of 5 wt.% of S<sub>8</sub> (5S-CGCN) demonstrate the highest photocatalytic activity in the hydrogen evolution process from water–ethanol solutions under the effect of visible light. The effective quantum yield of H<sub>2</sub> formation with the participation of 5S-CGCN and metal co-catalysts (palladium and gold) is Φ ≈ 100% at λ = 405 nm, which is almost twice as much as with the participation of unmodified CGCN. The high activity of 5S-CGCN can be associated with more intensive absorption of light, better separation of photogenerated charges, and suppression of their recombination.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259946","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 Acidic Treatment on the Catalitic Properties of Natural Aluminosilicates in Glycerol Acetylation 酸性处理对天然铝硅酸盐在甘油乙酰化过程中催化特性的影响
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-01 DOI: 10.1007/s11237-024-09800-0
A. S. Davtian, D. G. Chikhichin, O. O. Levchenko, G. L. Kamalov
{"title":"Effect of the Acidic Treatment on the Catalitic Properties of Natural Aluminosilicates in Glycerol Acetylation","authors":"A. S. Davtian, D. G. Chikhichin, O. O. Levchenko, G. L. Kamalov","doi":"10.1007/s11237-024-09800-0","DOIUrl":"https://doi.org/10.1007/s11237-024-09800-0","url":null,"abstract":"<p>The kinetics of the reaction of glycerol with acetic acid in the presence of natural aluminosilicates treated with nitric acid has been investigated. The influence of a molar ratio of the reagents, the reaction temperature and the catalyst mass fraction on glycerol conversion, as well as a rate of the accumulation of the products and their selectivities has been studied. It is established that in presence of clinoptilolite and trepel, monoacetin is the main product. In the case of bentonite, with the increase in the molar fraction of acetic acid and the catalyst mass fraction, the selectivity of monoacetin decreases due to a diacetin accumulation.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141193038","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 Carbon Dots Based Rh-Containing Nanocomposites on Si, Al, Zr Oxides in the Water Shift Reaction 硅、铝、锆氧化物上基于碳点的含 Rh 纳米复合材料在水转移反应中的催化特性
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-06-01 DOI: 10.1007/s11237-024-09799-4
I. B. Bychko, N. V. Vlasenko, G. R. Kosmambetova, L. B. Kharkova, O. G. Yanko, V. M. Ogenko, V. I. Grytsenko, P. E. Strizhak
{"title":"Catalytic Properties of Carbon Dots Based Rh-Containing Nanocomposites on Si, Al, Zr Oxides in the Water Shift Reaction","authors":"I. B. Bychko, N. V. Vlasenko, G. R. Kosmambetova, L. B. Kharkova, O. G. Yanko, V. M. Ogenko, V. I. Grytsenko, P. E. Strizhak","doi":"10.1007/s11237-024-09799-4","DOIUrl":"https://doi.org/10.1007/s11237-024-09799-4","url":null,"abstract":"<p>The catalytic activity of rhodium-containing nanocomposites with carbon nanodots and Si, Al and Zr oxides in high-temperature water shift reaction has been established. The role of support lies in regulation of the surface concentration of the active component (Rh) and its localization. The use of the support with a low specific surface promote the localization of the active component on the external surface that leads to the decrease of the distance between supported Rh particles, which is important for the surface migration of intermediate products of the reaction.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141193039","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
Thermodynamic and Kinetic Analysis of Catalytic Processes of Bioethanol Conversion for Hydrogen and Propylene Obtaining 生物乙醇转化制氢和丙烯催化过程的热力学和动力学分析
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-03-20 DOI: 10.1007/s11237-024-09795-8
Y. I. Pyatnitsky, L. Yu. Dolgikh, I. L. Stolyarchuk
{"title":"Thermodynamic and Kinetic Analysis of Catalytic Processes of Bioethanol Conversion for Hydrogen and Propylene Obtaining","authors":"Y. I. Pyatnitsky, L. Yu. Dolgikh, I. L. Stolyarchuk","doi":"10.1007/s11237-024-09795-8","DOIUrl":"https://doi.org/10.1007/s11237-024-09795-8","url":null,"abstract":"<p>It is shown that the initial reaction pathways of the processes of steam reforming of ethanol (SRE) or ethanol to propylene (ETP) conversion can be the same and include dehydrogenation and condensation reactions with the formation of acetaldehyde and acetone. The equilibrium yields of propylene and hydrogen in the ETP process, in contrast to SRE, depend little on both temperature and ethanol concentration. An equation for the determination of hydrogen yield as the function of selectivity of carbon-containing compounds has been proposed, based on which the hydrogen concentration in products of the SRE and ETP processes can be calculated.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166808","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 Hierarchical CsAlTi-BEA Zeolites in the Process of Conversion of Styrene with Co2 for Cyclic Carbonate Formation 分层 CsAlTi-BEA 沸石在苯乙烯与 Co2 转化为环状碳酸盐过程中的催化特性
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-03-20 DOI: 10.1007/s11237-024-09794-9
M. M. Kurmach, D. V. Kyryliuk, A. O. Samotoi, S. O. Sotnik, P. S. Yaremov, O. V. Shvets, N. D. Shcherban
{"title":"Catalytic Properties of Hierarchical CsAlTi-BEA Zeolites in the Process of Conversion of Styrene with Co2 for Cyclic Carbonate Formation","authors":"M. M. Kurmach, D. V. Kyryliuk, A. O. Samotoi, S. O. Sotnik, P. S. Yaremov, O. V. Shvets, N. D. Shcherban","doi":"10.1007/s11237-024-09794-9","DOIUrl":"https://doi.org/10.1007/s11237-024-09794-9","url":null,"abstract":"<p>Hierarchical CsAlTi-BEA zeolites, due to the presence of a high concentration of Lewis acid sites formed by tetrahedrally coordinated Ti<sup>4+</sup> ions in the zeolite structure and the neutralization of Brønsted acid sites by Cs<sup>+</sup> cations, exhibit high catalytic activity in the tandem reaction of cyclic carbonate formation from styrene in the presence of tert-butyl hydroperoxide under CO<sub>2</sub> pressure. The conversion of styrene into epoxide and further into carbonate increases with the content of titanium in the samples, while the selectivity for the cyclic carbonate increases with the content of cesium.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166827","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
Prospects for the Development of Nanocomposite Catalysts for the Oxidative Conversion of C1-C4 Alkanes with Carbon Dioxide to Produce Hydrogen/Synthesis Gas and Organic Compounds: A Review 开发用于 C1-C4 烷烃与二氧化碳进行氧化转化以产生氢气/合成气和有机化合物的纳米复合催化剂的前景:综述
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-03-20 DOI: 10.1007/s11237-024-09790-z
S. O. Soloviev
{"title":"Prospects for the Development of Nanocomposite Catalysts for the Oxidative Conversion of C1-C4 Alkanes with Carbon Dioxide to Produce Hydrogen/Synthesis Gas and Organic Compounds: A Review","authors":"S. O. Soloviev","doi":"10.1007/s11237-024-09790-z","DOIUrl":"https://doi.org/10.1007/s11237-024-09790-z","url":null,"abstract":"<p>The ways of targeted design of effective nanocomposite catalysts based on metal oxide systems and zeolites, in particular BEA type, for the processes of dry/super-dry conversion of methane/biogas for the obtaining of hydrogen and syngas with adjustable H<sub>2</sub>/CO ratio as well as oxidative dehydrogenation of C<sub>3</sub>-C<sub>4</sub> alkanes with the participation of CO<sub>2</sub> producing valuable olefins and dienes are considered. Isolated metal cations/small clusters exhibit higher activity, selectivity, and stability when compared to bulk structures in alkane dehydrogenation reactions since their activation involves the participation of coordinatively unsaturated metal cations on anionic vacancies. This can serve as a scientific basis for the targeted development of highly active and stable catalysts for such processes.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166758","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信