Russian Journal of Physical Chemistry A最新文献_第5页

Inhibitory Protection of Low-Carbon Steel in a Flow of Acid Solutions with Different Anionic Composition Containing Iron(III) Salts 低碳钢在含铁（III）盐的不同阴离子组成的酸溶液中的抑制保护作用

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S003602442570116X

Ya. G. Avdeev, A. V. Panova, T. E. Andreeva

{"title":"Inhibitory Protection of Low-Carbon Steel in a Flow of Acid Solutions with Different Anionic Composition Containing Iron(III) Salts","authors":"Ya. G. Avdeev, A. V. Panova, T. E. Andreeva","doi":"10.1134/S003602442570116X","DOIUrl":"10.1134/S003602442570116X","url":null,"abstract":"Abstract—The corrosion of low-carbon steel is studied in static and dynamic solutions of HCl, HCl + H3PO4, and H3PO4 containing Fe(III) salts, and also with addition of a two-component inhibitor IFKhAN-92 + KNCS. In these media, the following partial reactions proceed on steel: the anodic ionization of iron and the cathodic reduction of H+ and Fe(III). The reactions of iron ionization and proton reduction are controlled by kinetics, whereas the reduction of Fe(III) is controlled by diffusion. In these solutions, the addition of 4.5 mM IFKhAN-92 + 0.5 mM KNCS suppresses all partial reactions on the metal surface due to the formation of a protective polymolecular layer on the surface. As a result of inhibition of all the partial reactions on the steel surface in the HCl, HCl + H3PO4, and H3PO4 solutions containing Fe(III) salts, the steel corrosion slows down. The mixed inhibitor hinders the steel corrosion in 2 M H3PO4 and 1 M HCl + 1 M H3PO4, but poorly protects the metal in 2 M HCl. This is explained by the different ability of anions contained in the aggressive media to bind Fe(III) cations to complex compounds. In contrast to chloride anions, the phosphate anions bind stronger the Fe(III) cations to complex compounds, which leads to the lower diffusion coefficient DFe(III) of these cations in phosphate media. The protective film formed by the inhibitor on the steel surface hinders most efficiently the diffusion-controlled reduction of Fe(III) compounds present in solution and characterized by the relatively low diffusion coefficient.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 8","pages":"1748 - 1761"},"PeriodicalIF":0.8,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161501","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}

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Effect of the Structures of Pyridazino[4,5-c]quinoline and Quinoline Derivatives on Their Sorption by Octadecyl Silica Gel 吡啶基[4,5-c]喹啉及其衍生物的结构对十八烷基硅胶吸附性能的影响

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701316

A. V. Kapitonov, S. A. Ryzhkin, S. V. Kurbatova, M. N. Zemtsova

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Role of Calcium Doping to Improve the Performance of Titanate-Based Cathode for Low-Temperature Solid Oxide Fuel Cell 钙掺杂对提高低温固体氧化物燃料电池钛酸盐基阴极性能的作用

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701353

Amjad Ali, Bilal Mazhar, Muhammad Ahmad, Asia Rafique, Rizwan Raza

{"title":"Role of Calcium Doping to Improve the Performance of Titanate-Based Cathode for Low-Temperature Solid Oxide Fuel Cell","authors":"Amjad Ali, Bilal Mazhar, Muhammad Ahmad, Asia Rafique, Rizwan Raza","doi":"10.1134/S0036024425701353","DOIUrl":"10.1134/S0036024425701353","url":null,"abstract":"The stable, efficient, compatible, and cost-effective cathode material is essential for low-temperature solid oxide fuel cells. In this work, Ba0.5Sr0.5Cax({text{T}}{{{text{i}}}_{{1-x}}})({{{text{O}}}_{{3-delta }}}) (BSCT, x = 0.02, 0.04, 0.06, 0.08) cathode material has been synthesized using the sol-gel method. XRD analysis confirmed a single cubic phase structure (JCPDS 96-152-1268) with space group Pm3m. The average crystallite size of the cubic phase is 33.49 nm. The surface morphology revealed that particles are spherical and homogeneous, and no agglomeration is found. The void in the microstructures shows the porosity in the prepared material. UV‑visible spectroscopy has been used to calculate the bandgap, which shows a redshift from 3.84 to 3.72 eV with increasing calcium concentration. Metal–metal formation of Ba–Ti is identified at 544 cm–1 with Fourier transform infrared spectroscopy. Among all samples, Ba0.5Sr0.5Ca0.08Ti0.92({{{text{O}}}_{{3-delta }}}) possesses a maximum conductivity of 1.82 S cm–1 at 600°C in an oxygen atmosphere. The composition Ba0.5Sr0.5Ca0.08Ti0.92({{{text{O}}}_{{3-delta }}}) displayed a maximum power density of 106 mW cm–2 at 550°C with 0.98 V open circuit voltage using H2 fuel.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 8","pages":"1943 - 1953"},"PeriodicalIF":0.8,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161665","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}

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Thermodynamic Equilibria in the Ag–Au–Se–Te System at 25°C and Atmospheric Pressure 25℃和大气压下Ag-Au-Se-Te体系的热力学平衡

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701158

O. V. Eremin, G. A. Yurgenson, E. S. Epova

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High-Temperature Heat Capacity and Thermodynamic Properties of Bi4–xEuxTi3O12 Bi4-xEuxTi3O12的高温热容及热力学性质

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701146

G. V. Vasiliev, L. T. Denisova, V. A. Tikhanova, V. M. Denisov

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Catalysts of Peroxide and Aerobic Desulfurization, Based on Hybrid Plasma Electrolytic Oxidized Layers with Phosphorous, Tungsten, and Iron Oxides 基于磷、钨、铁氧化物混合等离子体电解氧化层的过氧化物和好氧脱硫催化剂

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701183

I. G. Tarkhanova, I. V. Lukiyanchuk, E. A. Yeseva, M. S. Vasilyeva, M. O. Lukashov, V. V. Korochentsev, V. V. Tkachev

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Contributions from Electrons of Valence Molecular Orbitals to the Population of Bonds in AnO2 Complexes (An = Th–Lr) 价态分子轨道电子对AnO2配合物（An = Th-Lr）键居数的贡献

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701237

A. E. Putkov, Yu. A. Teterin, M. V. Ryzhkov, K. I. Maslakov, A. Yu. Teterin, K. E. Ivanov, S. N. Kalmykov, V. G. Petrov

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Advances in Metal and Metal Oxide Modified Silicon Anodes for Lithium-Ion Batteries: A Review 锂离子电池用金属及金属氧化物改性硅阳极研究进展

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701122

Yiming Zhang, Zhongcai Shao, Xuetian Li

{"title":"Advances in Metal and Metal Oxide Modified Silicon Anodes for Lithium-Ion Batteries: A Review","authors":"Yiming Zhang, Zhongcai Shao, Xuetian Li","doi":"10.1134/S0036024425701122","DOIUrl":"10.1134/S0036024425701122","url":null,"abstract":"Lithium-ion battery is the secondary battery with the highest energy density among rechargeable and dischargeable batteries. Not only that, it also has outstanding advantages such as long cycle life, small mass and volume, and environmental friendliness, and is commonly used in electronic products, military aviation field, as well as power vehicles and large-scale energy storage systems. Among the many anode materials for lithium-ion batteries, silicon has a high theoretical specific capacity of up to 4200 mA h g–1 and a low embedded lithium level (about 0.4 V), making it an ideal anode material for lithium batteries. However, the low electronic conductivity of silicon (about 10–5 S/cm) and its alloying and de-alloying reactions during charging and discharging have led to large volume expansion and electrode pulverization. In this paper, the latest research progress of silicon anode material modification methods for lithium-ion batteries is sorted out, and the elaboration mainly includes the improvement of the battery performance through the preparation of nanosilicon, carbon capping, metal or metal oxide capping, mesoporous or multicontrolled silicon, and addition of binder, and the outlook of the metal modification of silicon anode materials is also given.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 8","pages":"1717 - 1729"},"PeriodicalIF":0.8,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0036024425701122.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161505","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}

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Porous Carbon Obtained from Coal Gasification Slag Serves As a Carbon Anode Material for Lithium/Sodium Ion Batteries 从煤气化炉渣中提取多孔碳作为锂/钠离子电池的碳负极材料

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701365

Jingwen Huang, Haiqiang Bai, Jinghui Yang, Qingwen Ye, Xuanpan Gao, Yunhua Xu

{"title":"Porous Carbon Obtained from Coal Gasification Slag Serves As a Carbon Anode Material for Lithium/Sodium Ion Batteries","authors":"Jingwen Huang, Haiqiang Bai, Jinghui Yang, Qingwen Ye, Xuanpan Gao, Yunhua Xu","doi":"10.1134/S0036024425701365","DOIUrl":"10.1134/S0036024425701365","url":null,"abstract":"As a fundamental technology for the efficient and environmentally friendly utilization of coal, the process of coal gasification inevitably generates a substantial amount of waste in the form of coal gasification slag. In this study, we utilized coal gasification slag as a raw material to extract carbon sources, employing potassium hydroxide (KOH) as an activator to prepare porous carbon. The electrochemical performance of this porous carbon was investigated in lithium/sodium ion batteries. When the ratio of KOH to residual carbon is 3 : 1, the resulting material demonstrates excellent lithium storage performance as an anode, achieving a reversible specific capacity of 452.83 mA h g–1 at a current rate of 0.1 C. Furthermore, after undergoing 100 cycles at a current density of 0.5 C, the capacity remains stable at 272.64 mA h g–1. Conversely, when adjusting the KOH to carbon ratio to 1 : 1, optimal sodium storage performance is observed; specifically, the initial specific discharge capacity reaches 165.56 mA h g–1 at a current density of 1 A g–1. These results indicate that carbon residue derived from coal gasification holds significant potential as an anode material in alkali metal ion batteries.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 8","pages":"1954 - 1962"},"PeriodicalIF":0.8,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161666","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}

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The Role of Diffusion Processes in Determining the Parameters of Thermal Explosions in Energetic Composite Materials 扩散过程在确定高能复合材料热爆炸参数中的作用

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI: 10.1134/S0036024425701389

A. A. Koptelov, A. A. Rogozina, D. N. Sadovnichii, Yu. M. Milekhin

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