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Doklady Physical Chemistry最新文献

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Heat Capacity and Thermal Expansion of M-Terbium Orthotantalate 正钽酸m铽的热容量和热膨胀
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-12-01 DOI: 10.1134/S0012501621070010
P. G. Gagarin, A. V. Guskov, V. N. Guskov, A. V. Khoroshilov, K. S. Gavrichev,  V. K. Ivanov
{"title":"Heat Capacity and Thermal Expansion of M-Terbium Orthotantalate","authors":"P. G. Gagarin,&nbsp;A. V. Guskov,&nbsp;V. N. Guskov,&nbsp;A. V. Khoroshilov,&nbsp;K. S. Gavrichev,&nbsp; V. K. Ivanov","doi":"10.1134/S0012501621070010","DOIUrl":"10.1134/S0012501621070010","url":null,"abstract":"<p>The temperature dependences of the molar heat capacity in the range 317–1377 K and the parameters of the monoclinic crystal lattice of <i>M</i>-terbium orthotantalate in the range 298–1273 K have been determined.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"499 1","pages":"70 - 72"},"PeriodicalIF":0.9,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4015471","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: 2
Erratum to: Scalable One-Step Electrochemical Synthesis of a Graphene-Based Material with Controlled Morphology 可扩展的一步电化学合成石墨烯基材料与控制形态
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-12-01 DOI: 10.1134/S0012501621390020
A. V. Kirianova, X. Xieyu, M. O. Gallyamov, O. O. Kapitanova
{"title":"Erratum to: Scalable One-Step Electrochemical Synthesis of a Graphene-Based Material with Controlled Morphology","authors":"A. V. Kirianova,&nbsp;X. Xieyu,&nbsp;M. O. Gallyamov,&nbsp;O. O. Kapitanova","doi":"10.1134/S0012501621390020","DOIUrl":"10.1134/S0012501621390020","url":null,"abstract":"","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"499 2","pages":"78 - 78"},"PeriodicalIF":0.9,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4015197","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
Strain Softening of Polypropylene Films during Biaxial Orientation 聚丙烯薄膜在双轴取向过程中的应变软化
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-12-01 DOI: 10.1134/S0012501621070022
A. S. Kechek’yan, K. Z. Monakhova, S. L. Bazhenov
{"title":"Strain Softening of Polypropylene Films during Biaxial Orientation","authors":"A. S. Kechek’yan,&nbsp;K. Z. Monakhova,&nbsp;S. L. Bazhenov","doi":"10.1134/S0012501621070022","DOIUrl":"10.1134/S0012501621070022","url":null,"abstract":"<p>The effect of plane cold drawing on the mechanical characteristics of polypropylene during subsequent tension was studied. After the drawing, the yield stress was observed to decrease by about 30%. The true yield stress is described by a single curve as a function of the total axial elongation during the preliminary plane deformation and the subsequent tension.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"499 1","pages":"67 - 69"},"PeriodicalIF":0.9,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4015671","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
Scale-up of the Solution Combustion Synthesis of Iron Oxides with the Addition of the Inactive Component FeOx 添加非活性组分FeOx的溶液燃烧合成氧化铁的放大研究
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-09-22 DOI: 10.1134/S001250162105002X
Sh. M. Khaliullin, A. M. Murzakaev, V. D. Zhuravlev, O. V. Russkikh,  V. G. Bamburov
{"title":"Scale-up of the Solution Combustion Synthesis of Iron Oxides with the Addition of the Inactive Component FeOx","authors":"Sh. M. Khaliullin,&nbsp;A. M. Murzakaev,&nbsp;V. D. Zhuravlev,&nbsp;O. V. Russkikh,&nbsp; V. G. Bamburov","doi":"10.1134/S001250162105002X","DOIUrl":"10.1134/S001250162105002X","url":null,"abstract":"<p>The solution combustion synthesis of iron oxides from nitrate solutions with a dual fuel comprising urea and citric acid on the earlier synthesized FeO<sub><i>x</i></sub> powder was studied. The possibility of the synthesis of up to 100 g of the desired product under laboratory conditions in a relatively small (4 dm<sup>3</sup>) reactor was demonstrated for the first time. The obtained nanodisperse materials were a well-crystallized mixture of Fe<sub>3</sub>O<sub>4</sub> and α-Fe<sub>2</sub>O<sub>3</sub> oxides. A consistent increase in the weight of the FeO<sub><i>x</i></sub> powder led to an increase in the mass fraction of the α-Fe<sub>2</sub>O<sub>3</sub> phase to 91% at the final stage of the synthesis.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"498 1","pages":"54 - 59"},"PeriodicalIF":0.9,"publicationDate":"2021-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4879596","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
Scalable One-Step Electrochemical Synthesis of a Graphene-Based Material with Controlled Morphology 可控形貌石墨烯基材料的可扩展一步电化学合成
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-09-22 DOI: 10.1134/S0012501621060014
A. V. Kirianova, X. Xieyu, M. O. Gallyamov, O. O. Kapitanova
{"title":"Scalable One-Step Electrochemical Synthesis of a Graphene-Based Material with Controlled Morphology","authors":"A. V. Kirianova,&nbsp;X. Xieyu,&nbsp;M. O. Gallyamov,&nbsp;O. O. Kapitanova","doi":"10.1134/S0012501621060014","DOIUrl":"10.1134/S0012501621060014","url":null,"abstract":"<p>For the first time, electrochemical synthesis of graphene-based particles with a specified morphology has been demonstrated. It has been revealed that parameters of the electrochemical synthesis make it possible to control the degree of oxidation and lateral size of graphene-based particles.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"498 2","pages":"61 - 66"},"PeriodicalIF":0.9,"publicationDate":"2021-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0012501621060014.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4876851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Rapid Conversion of Methane to Hydrogen Stimulated by Microwave Irradiation on the Surface of a Carbon Adsorbent 微波在碳吸附剂表面刺激甲烷快速转化为氢
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-09-22 DOI: 10.1134/S0012501621050018
A. V. Chistyakov, G. I. Konstantinov, M. V. Tsodikov,  A. L. Maximov
{"title":"Rapid Conversion of Methane to Hydrogen Stimulated by Microwave Irradiation on the Surface of a Carbon Adsorbent","authors":"A. V. Chistyakov,&nbsp;G. I. Konstantinov,&nbsp;M. V. Tsodikov,&nbsp; A. L. Maximov","doi":"10.1134/S0012501621050018","DOIUrl":"10.1134/S0012501621050018","url":null,"abstract":"<p>The paper presents the results on the rapid production of H<sub>2</sub> from CH<sub>4</sub> by its direct decomposition in a plasma-catalytic mode stimulated by microwave irradiation (MWI) at 600°C. Methane was passed through a bed of iron-containing carbon adsorbent obtained from gas coal characterized by a large dielectric loss tangent. Under MWI, intense breakdown effects with plasma generation appear on the surface of the iron–carbon system. Methane in the plasma converts to hydrogen and carbon. A method has been developed for the rapid regeneration of the catalyst by water vapor with the removal of carbon under microwave stimulation. Short-cycle experiments have shown that the catalytic system provides high conversions of methane and its almost complete regeneration.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"498 1","pages":"49 - 53"},"PeriodicalIF":0.9,"publicationDate":"2021-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0012501621050018.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4876849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Nanocomposite Hydrogels with Multifunctional Cross-Links 多功能交联纳米复合水凝胶
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-06-10 DOI: 10.1134/S0012501621040011
A. I. Barabanova, A. V. Shibaev,  A. R. Khokhlov, O. E. Philippova
{"title":"Nanocomposite Hydrogels with Multifunctional Cross-Links","authors":"A. I. Barabanova,&nbsp;A. V. Shibaev,&nbsp; A. R. Khokhlov,&nbsp;O. E. Philippova","doi":"10.1134/S0012501621040011","DOIUrl":"10.1134/S0012501621040011","url":null,"abstract":"<p>Polyvinyl alcohol hydrogels with multifunctional cross-links—silica nanoparticles surface-modified with phenylboronic groups—have been fabricated. It has been demonstrated that such hydrogels exhibit pronounced viscoelastic properties, and their viscosity and elastic modulus are significantly higher than those for gels with single borate ion cross-links.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"497 2","pages":"41 - 47"},"PeriodicalIF":0.9,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4426685","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
Mechanical Properties of Insulation Coatings Based on Modified Polyurea 改性聚脲基绝缘涂料的力学性能
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-06-10 DOI: 10.1134/S0012501621030015
M. S. Arzhakov, P. P. Yakovlev, A. Yu. Yarysheva, A. I. Lopatkin,  A. A. Yaroslavov
{"title":"Mechanical Properties of Insulation Coatings Based on Modified Polyurea","authors":"M. S. Arzhakov,&nbsp;P. P. Yakovlev,&nbsp;A. Yu. Yarysheva,&nbsp;A. I. Lopatkin,&nbsp; A. A. Yaroslavov","doi":"10.1134/S0012501621030015","DOIUrl":"10.1134/S0012501621030015","url":null,"abstract":"<p>The influence of chemical and physicochemical modification on the mechanical properties of polyurea coatings has been studied. It has been demonstrated that the use of aromatic and aliphatic polyisocyanates, as well as polymer modification with minor amounts (no more than 2 wt %) of polytetrafluoroethylene and polymethylsiloxane, makes it possible to control the elastic modulus of the coating in the range 22–172 MPa. The results obtained determine the possibility of producing a family of coatings with a spectrum of construction properties, from those characteristic of rubbers to those typical of plastics, using a limited range of parent monomers and small amounts of modifying agents.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"497 1","pages":"25 - 27"},"PeriodicalIF":0.9,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4424634","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
Electroflotation Recovery of a Mixture of Cu, Ni, and Zn Hydroxides from Aqueous Ammonia Alkaline Solutions 电浮选从氨水碱性溶液中回收铜、镍、锌氢氧化物混合物
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-06-10 DOI: 10.1134/S0012501621040023
V. P. Meshalkin, V. A. Kolesnikov, A. V. Perfil’eva, Aung Pyae, A. V. Kolesnikov
{"title":"Electroflotation Recovery of a Mixture of Cu, Ni, and Zn Hydroxides from Aqueous Ammonia Alkaline Solutions","authors":"V. P. Meshalkin,&nbsp;V. A. Kolesnikov,&nbsp;A. V. Perfil’eva,&nbsp;Aung Pyae,&nbsp;A. V. Kolesnikov","doi":"10.1134/S0012501621040023","DOIUrl":"10.1134/S0012501621040023","url":null,"abstract":"<p>Electroflotation recovery of a mixture of copper, zinc, and nickel hydroxides from aqueous ammonia alkaline solutions was studied. It was shown that such an anionic surfactant as tall oil soaps from coniferous wood improves the efficiency of the electroflotation recovery of the mixture of hydroxides by decreasing the process time by a factor of 4–5, extending the pH range, and forming a more stable froth product. A scheme was proposed to describe the surface charge formation, the surfactant and ligand adsorption on the dispersed phase of metal hydroxides, and their influence on the electroflotation process.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"497 2","pages":"35 - 40"},"PeriodicalIF":0.9,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4424628","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
Relationship between the Omniphobic Properties and the Swelling Degree of SLIPS Coatings Based on Polymer Gel Thin Films 聚合物凝胶涂层的全疏水性与溶胀度的关系
IF 0.9 4区 化学
Doklady Physical Chemistry Pub Date : 2021-06-10 DOI: 10.1134/S0012501621030027
P. S. Kazaryan, E. P. Kharitonova, S. V. Makaev, A. A. Gulin, M. S. Kondratenko
{"title":"Relationship between the Omniphobic Properties and the Swelling Degree of SLIPS Coatings Based on Polymer Gel Thin Films","authors":"P. S. Kazaryan,&nbsp;E. P. Kharitonova,&nbsp;S. V. Makaev,&nbsp;A. A. Gulin,&nbsp;M. S. Kondratenko","doi":"10.1134/S0012501621030027","DOIUrl":"10.1134/S0012501621030027","url":null,"abstract":"<p>The study addresses the relationship between the omniphobic properties of coatings based on polymer matrices doped with liquid lubricants (Slippery Liquid-Infused Porous Surfaces, SLIPS) and the degree of swelling of the matrices in the lubricant. A method for fabrication of matrices based on poly(perfluoroalkyl methacrylates) impregnated with fluorinated oils with different lubricant contents by one-stage synthesis in supercritical (SC) CO<sub>2</sub> is proposed. The dependence of the contact angle hysteresis and the sliding angle on the degree of swelling was studied for water and saturated hydrocarbon droplets. The lubricant content in the matrices was determined by thermogravimetric analysis and ellipsometry.</p>","PeriodicalId":532,"journal":{"name":"Doklady Physical Chemistry","volume":"497 1","pages":"28 - 33"},"PeriodicalIF":0.9,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4426683","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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