Russian Journal of Physical Chemistry A最新文献_第3页

Polymer-Derived N/S-Doped Carbons for Electrochemical Systems: A Mini-Review 聚合物衍生的N/ s掺杂碳在电化学系统中的应用综述

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701705

Mingrui Qin, Qian Jiang, Zhilu Yan, Zhenyu Wang, Jiaming Wang, Xinggang Chen

{"title":"Polymer-Derived N/S-Doped Carbons for Electrochemical Systems: A Mini-Review","authors":"Mingrui Qin, Qian Jiang, Zhilu Yan, Zhenyu Wang, Jiaming Wang, Xinggang Chen","doi":"10.1134/S0036024425701705","DOIUrl":"10.1134/S0036024425701705","url":null,"abstract":"Against the backdrop of the global energy crisis and environmental pollution, efficient and sustainable electrochemical energy storage materials have attracted considerable attention. Carbon materials are widely used due to their superior conductivity and chemical stability; however, they face limitations such as poor surface wettability, low specific capacitance, and insufficient active sites. In recent years, heteroatom doping—especially the co-doping of nitrogen (N) and sulfur (S)—has become a research hotspot, utilizing synergistic effects to significantly enhance the electrochemical performance of carbon materials. Despite progress in the synthesis, performance optimization, and mechanism study of N/S co-doped carbon materials, challenges remain, including complex synthesis methods, unclear doping mechanisms, and scalability issues for industrial production. This review systematically summarizes synthesis strategies (e.g., template-assisted methods, direct carbonization) for polymer-derived N/S co-doped carbon materials, critically analyzing their advantages and limitations. Furthermore, it elucidates the mechanistic impact of N/S co-doping on electrochemical properties, focusing on electron redistribution and active site modulation. Additionally, the application of density functional theory (DFT)-based computational simulations in material design is discussed, revealing the electronic structure modifications induced by N/S co-doping. The work aims to provide theoretical insights and experimental guidelines for advancing N/S co-doped carbon materials in electrochemical energy storage applications.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2249 - 2257"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073813","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

First-Principles Study on Direct Z-Scheme WSi2N4/C2N van der Waals Heterostructure Photocatalyst 直接z型WSi2N4/C2N异质结构光催化剂的第一性原理研究

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701730

Xiang Wang, Lina Yuan, Tianhang Deng, Chengyong Xu, Jianwen Li

{"title":"First-Principles Study on Direct Z-Scheme WSi2N4/C2N van der Waals Heterostructure Photocatalyst","authors":"Xiang Wang, Lina Yuan, Tianhang Deng, Chengyong Xu, Jianwen Li","doi":"10.1134/S0036024425701730","DOIUrl":"10.1134/S0036024425701730","url":null,"abstract":"Two-dimensional van der Waals heterostructures (vdWHs) have garnered significant attention owing to their promising applications in photocatalytic water splitting. Developing efficient photocatalysts with low recombination rate of photogenerated carriers and superb optical property remains a stern challenge. Here, the electronic and photocatalytic performances of WSi2N4/C2N vdWH were examined applying first-principles approach. Research results demonstrate that WSi2N4/C2N vdWH has sufficient thermodynamic stability. WSi2N4/C2N vdWH possesses a staggered band arrangement with direct HSE06 band gap of 1.501 eV. Built-in electric field directing from WSi2N4 to C2N can facilitate photogenerated carrier transfer along direct Z-shaped path, which is advantageous for effective electron-hole separations. Importantly, WSi2N4/C2N vdWH shows appropriate band edge positions that satisfy criteria for efficient photocatalyst and displays a more outstanding light absorption capacity than WSi2N4 monolayer and C2N monolayer. This present study offers theoretical support for designing and preparing WSi2N4/C2N vdWH.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2277 - 2286"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073814","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

Preparationof Heteroatom-Doped Mesoporous Hollow Carbonmicropheres and the Electromagnetic Wave Absorbing Properties 杂原子掺杂介孔空心碳微球的制备及其电磁波吸收性能

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701729

Ziyi Zhang, Xiaoqing Yin, Yanna Guo, Fei Yan, Junwu Wen, Wenjun Gui, Yang Chen

{"title":"Preparationof Heteroatom-Doped Mesoporous Hollow Carbonmicropheres and the Electromagnetic Wave Absorbing Properties","authors":"Ziyi Zhang, Xiaoqing Yin, Yanna Guo, Fei Yan, Junwu Wen, Wenjun Gui, Yang Chen","doi":"10.1134/S0036024425701729","DOIUrl":"10.1134/S0036024425701729","url":null,"abstract":"At present, the development of high-efficiency electromagnetic wave (EMW) absorbing materials has received close attention. Aiming at the problems of weak absorption strength and narrow frequency band of pure dielectric absorbing materials, poroushollow carbon microspheres (PCHM) with uniform mesoporous shells were prepared by a simple SiO2 hard template method. Heteroatom-doped porous hollow carbon microspheres (Heteroatom-doped-PCHM) were prepared by controlling the doping mass ratios of PCHM to thiourea (1 : 5, 1 : 10, and 1 : 15), and the morphology, structure and electromagnetic wave absorption property of the samples were evaluated. The results show that when the doping mass ratio is 1 : 10, the prepared sample (Heteroatom-doped-PCHM-10) has a minimum reflection loss (RLmin) of –48.2 dB at the thickness of 3.0 mm, and a maximum effective absorption bandwidth (EABmax) is 6.21 GHz at the thickness of 2.5 mm. Heteroatom-doped-PCHM-10 has the most suitable hollow cavity structure and the most suitable mesoporous structure. It has the controllable complex dielectric constant and a variety of attenuation mechanisms, including interface polarization, dipole polarization and conduction loss, and has excellent electromagnetic wave absorption property. Heteroatom-doped PCHM is characterized as a promising electromagnetic wave absorber with high absorption capacity, light weight and wide effective absorption bandwidth.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2266 - 2276"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073858","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

Controlling the Optimum Surfactants Concentrations for Dispersing Modified Graphene Nanoplatelets (GNPs) in Aqueous Solution 控制改性石墨烯纳米片（GNPs）在水溶液中分散的最佳表面活性剂浓度

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701626

Faping Li, Zhao Feng, Zhang Xiping, Lisheng Liu

{"title":"Controlling the Optimum Surfactants Concentrations for Dispersing Modified Graphene Nanoplatelets (GNPs) in Aqueous Solution","authors":"Faping Li, Zhao Feng, Zhang Xiping, Lisheng Liu","doi":"10.1134/S0036024425701626","DOIUrl":"10.1134/S0036024425701626","url":null,"abstract":"To fully utilize the exceptional reinforcement potential of GNPs as a novel nanoscale material, achieving even dispersion within composites is essential. In this paper, the modified graphene nanoplatelets (GNPs) is prepared by the acidification method using a mixture of concentrated sulfuric and nitric acids. Then, four dispersants, including fatty alcohol polyoxyethylene ether (AEO), hydroxypropyl methylcellulose (HPMC), linear alkylbenzene sulfonate (LABS), and sodium alkyl alcohol polyoxyethylene ether sulfate (APES), are employed individually and combinatorially to disperse the modified GNPs in aqueous solution by the combination of ultrasonic processing. The modified GNPs treated by the method of acidification is analyzed using fourier-transform infrared spectroscopy (FTIR), and the corresponding ultrasonication-driven dispersion of modified GNPs in aqueous solution incorporated with various dispersants are characterized by UV–Vis spectroscopy and transmission electron microscopy (TEM). The experimental results indicate that the surface of modified GNPs has been grafted with abundant hydrophilic groups, including hydroxyl and carboxyl groups. All results show that the dispersant of AEO or HPMC in a certain concentration of 0.6 or 0.5 g/L has the maximum dispersion effect on modified GNPs in aqueous solution. With AEO and HPMC combined at a 5 : 7 concentration ratio and a total concentration of 0.4 g L–1, the modified GNPs suspension achieves peak absorbance, demonstrating an excellent dispersion effect.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2171 - 2177"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073940","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

Thermochemical and Structural Properties of K2–2xNa2xFe1.5Nb0.5(PO4)3 (0 ≤ x ≤ 1) Solid Solutions with NASICON and Langbeinite Structures 具有NASICON和朗贝氏体结构的K2-2xNa2xFe1.5Nb0.5 (PO4)3（0≤x≤1）固溶体的热化学和结构性质

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701432

A. K. Koryttseva, A. V. Knyazev, E. V. Syrov, D. G. Fukina, I. A. Bazhenova, V. V. Cheverikin, S. V. Kuzovchikov

{"title":"Thermochemical and Structural Properties of K2–2xNa2xFe1.5Nb0.5(PO4)3 (0 ≤ x ≤ 1) Solid Solutions with NASICON and Langbeinite Structures","authors":"A. K. Koryttseva, A. V. Knyazev, E. V. Syrov, D. G. Fukina, I. A. Bazhenova, V. V. Cheverikin, S. V. Kuzovchikov","doi":"10.1134/S0036024425701432","DOIUrl":"10.1134/S0036024425701432","url":null,"abstract":"The K(_{{2 - 2x}})Na2xFe1.5Nb0.5(PO4)3 (0 ≤ x ≤ 1) solid solutions were studied to find the boundaries of existence of the NASICON and langbeinite structural types and to determine the mixing energetics. The objects of study can find use as cathodes for Na-ion batteries. The powder samples were obtained by the solid-phase method and characterized by X-ray spectral microanalysis, X-ray diffraction, and differential scanning calorimetry. The structure was refined by the Rietveld method using X-ray powder diffraction data at room temperature. The phases that are isostructural to the mineral langbeinite (K2Mg2(SO4)3, sp. gr. P213) crystallize in the range of 0 ≤ x ≤ 0.4, while the phases isostructural to NASICON NaZr2(PO4)3 (sp. gr. R3-c) crystallize in the range of 0.9 ≤ x ≤ 1. The standard enthalpies of formation were determined by high-temperature drop-solution calorimetry in molten sodium molybdate solvent (3Na2O⋅4MoO3) at 800°C using an isoperibolic differential calorimeter of the Tian–Calvet type. The behavior of the obtained energy characteristics is discussed in accordance with the structural evolutions in the given range of solid solution compositions. This study expands the knowledge about the isomorphism of alkali cations in framework structures, showing the ways of possible changes in the properties in the given series.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"1985 - 1998"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0036024425701432.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073941","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: 0

Solid–Liquid Equilibria of Sodium–Potassium–Cesium Sulfate System at 298.2 and 323.2 K 钠-钾-硫酸铯体系在298.2和323.2 K下的固液平衡

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701444

Zhangfa Yu, Ying Zeng, Xuequn Li, Hongbo Sun, Longgang Li, Wanghai He, Linxin Wu, Xudong Yu

{"title":"Solid–Liquid Equilibria of Sodium–Potassium–Cesium Sulfate System at 298.2 and 323.2 K","authors":"Zhangfa Yu, Ying Zeng, Xuequn Li, Hongbo Sun, Longgang Li, Wanghai He, Linxin Wu, Xudong Yu","doi":"10.1134/S0036024425701444","DOIUrl":"10.1134/S0036024425701444","url":null,"abstract":"Abstract—The salt lake brine resources in the Qaidam Basin are characterized by abundant alkaline (earth) metal components, demonstrating significant developmental potential. To elucidate the crystallization behavior of salts in the sodium-potassium-cesium coexisting sulfate system, the phase equilibria of the quaternary system Na+, K+, Cs+//({text{SO}}_{4}^{{2 - }})–H2O were systematically investigated at 298.2 and 323.2 K using the isothermal solubility. experimental measurements included the density, refractive index, and liquid-phase composition of the equilibrated system, while the equilibrium solid phases were identified by X-ray powder diffraction analysis. Key findings reveal that this quaternary system is a complex system. At 298.2 K, the phase diagram comprises four invariant points, nine univariant curves, and six crystallization phase regions, yielding a solid solution [(K2SO4)x(Cs2SO4)(_{{1-x}})] and double salt (Na2SO4⋅3K2SO4). In contrast, the phase diagram at 323.2 K simplifies to three invariant points, seven univariant curves, and five crystallization phase regions. Notably, Na2SO4⋅10H2O was completely converted to Na2SO4 at 323.2 K. Comparative analysis demonstrates that the crystallization phase region of the solid solution [(K2SO4)x(Cs2SO4)(_{{1-x}})] remains predominant across both temperatures, indicating its preferential crystallization tendency with in this system.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"1999 - 2011"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073942","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

Synthesis and Physicochemical Properties of a Surfactant Based on Hemp Oil 大麻油表面活性剂的合成及其理化性质研究

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701742

T. G. Movchan, E. V. Plotnikova, A. V. Berleva, K. P. Birin, G. A. Tsivadze, A. Yu. Tsivadze

引用次数: 0

The Combined Effects of an Applied Magnetic Field, Impurity and Spin-Orbit Couplings on the Electronic Properties of Anisotropic InAs-Quantum Dot 外加磁场、杂质和自旋轨道耦合对各向异性inas量子点电子特性的综合影响

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701584

Ayham Shaer, Mohammad K. Elsaid

{"title":"The Combined Effects of an Applied Magnetic Field, Impurity and Spin-Orbit Couplings on the Electronic Properties of Anisotropic InAs-Quantum Dot","authors":"Ayham Shaer, Mohammad K. Elsaid","doi":"10.1134/S0036024425701584","DOIUrl":"10.1134/S0036024425701584","url":null,"abstract":"The eigenstates and density of states (DOS) of an anisotropic doped quantum dot (QD), as two essential quantities for understanding the band structure of the material, have been studied. We have solved the Hamiltonian, using the diagonalization method, in the presence of a perpendicular magnetic field, Gaussian impurity, and spin-orbit interaction (SOI): Rashba and Dresselhaus spin-orbit interaction terms. The spectra of the InAs-QD have been computed and plotted as a function of the Hamiltonian physical parameters. Furthermore, we have displayed the dependence of the DOS on the magnetic field strength, impurity position, and various Rashba and Dresselhaus spin-orbit interaction strengths. The results show that the impurity position (on and off) center significantly affects the spectra and the DOS. In addition, the presence of SOI partially removes the degeneracy of higher energy states and splits the Fock–Darwin states in the case of isotropic QD. The obtained results show that the issue of the anisotropy of the parabolic confinement has major effects on the DOS of the QD since it removes the degeneracy.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2137 - 2143"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073943","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

Heteronuclear Complexes FeII, FeIII, and MnII with Acetate Ions 异核配合物FeII， FeIII和MnII与醋酸离子

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701523

M. B. Zhorobekova, E. F. Faizullozoda, M. Rakhimova, F. Miraminzoda

{"title":"Heteronuclear Complexes FeII, FeIII, and MnII with Acetate Ions","authors":"M. B. Zhorobekova, E. F. Faizullozoda, M. Rakhimova, F. Miraminzoda","doi":"10.1134/S0036024425701523","DOIUrl":"10.1134/S0036024425701523","url":null,"abstract":"Heteronuclear complexation in the Fe(III)–Fe(II)–Mn(II)–CH3COOH–H2O3 system is studied using the Clark–Nikol’skii oxidation potential at a temperature of 298.15 K and an ionic strength of 0.5 mol/L. It is shown that complexes form in the system in the pH range of 2.0 to 10. Seven coordination compounds form sequentially: [FeIIIAc(H2O)5]2+, [FeIIIAcOH(H2O)4]+, [FeIIIMnIIAc(H2O)11]4+, [FeIIIMnIIAc(OH)2(H2O)9]2+, [FeIIAc(H2O)5]+, [FeII(Ace)2(H2O)4]0, and [FeII(Ac)(OH)2(H2O)3]−. Two of these are heteronuclear, while the other three more contain hydroxyl groups in the inner coordination sphere. Fe(II) does not participate in the formation of heteronuclear complexes. Model parameters are calculated along with areas of existence and dominance, and mechanisms are proposed for the formation of complexes.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 9","pages":"2074 - 2080"},"PeriodicalIF":0.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073803","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

Acoustic Properties of Antibacterial Pyridoxine and Neomycin Drugs in Aqueous-Urea Solutions at (T = 303.15, 308.15, and 313.15 K) 在（T = 303.15、308.15和313.15 K）条件下，吡脲醇和新霉素类抗菌药物在尿素水溶液中的声学特性

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI: 10.1134/S0036024425701754

S. D. Deosarkar, M. P. Pawar, A. D. Arsule, H. N. Pawar

引用次数: 0