Article
Chemistry, Organic
Guo-Qing Jiang, Bin-Hong Han, Xian-Peng Cai, Jian-Ping Qu, Yan-Biao Kang
Summary: An iron-catalyzed direct aerobic alpha,beta-dehydrogenation of carbonyls has been reported using tert-butyl nitrite and N-hydroxyphthalimide as the co-catalyst system. This method allows for the production of a wide range of lactams, flavanones, lactone, and thiochromen-4-one in high yields without the need for extra transition metal reagents.
Article
Chemistry, Physical
I. A. Opeida, R. B. Sheparovych, W. Ya. Suprun
Summary: The catalytic activities of transition metal oxide (TMO) catalysts, such as VOX and MnOX supported on TiO2 and TiO2-SiO2, in the aerobic liquid-phase radical chain oxidation of alkylarenes (RH) with N-hydroxyphthalimide (NHPI) were investigated. The mechanisms of NHPI catalysis and the participation of TMO in the chain initiation stage were discussed. The catalytic activities were compared with the results of molecular hydrogen temperature programmed reduction profiles (H2-TPR), showing correlation between them. The obtained experimental results were explained by calculating the reaction enthalpies for model catalytic centers using a semi-empirical method. Finally, the oxidation process of cumene was presented, identifying the concomitant role of heterogeneous initiation and homogeneous propagation and termination steps in the free-radical mechanism.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Applied
Guowei Xiong, Liangfeng Huang, Zhang Gong, Can Wang, Yunfeng Chen
Summary: A copper-catalyzed cross-dehydrogenative coupling reaction was developed for the synthesis of beta-keto sulfoxides from aromatic aldehydes and DMSO, achieving yields of 73-92%. The reaction involved base-promoted DMSO addition to aldehydes and copper-catalyzed aerobic oxidation. This catalytic system also worked well with aromatic alcohols that could be oxidized to aldehydes.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Engineering, Chemical
Yufei Yang, Jieyi Ma, Junyan Wu, Weixia Zhu, Yadong Zhang
Summary: The aryl-substituted derivatives (Cl and Br) of N-hydroxyphthalimide (NHPI) were synthesized and studied for their catalytic performance in the oxidation of cyclohexylbenzene (CHB). Both experimental and theoretical studies have shown that chloro-substitution on NHPI can significantly enhance its catalytic effects on CHB oxidation.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Jordan E. Nutting, Kaining Mao, Shannon S. Stahl
Summary: The study reveals different mechanistic differences between Cu/aminoxyl and Fe/aminoxyl catalyst systems, leading to distinct alcohol oxidation chemoselectivity and functional group compatibility. The Fe/aminoxyl system involves a redox cascade reaction, while the Cu/aminoxyl system exhibits integrated cooperativity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Jinyang Xu, Guojun Shi, Yuxin Liang, Qiuting Lu, Lijun Ji
Summary: Selective oxidation of toluene to benzaldehyde using a combination of homogeneous N-hydroxyphthalimide (NHPI) and cobaltous ions in the presence of hexafloropropan-2-ol was found to be active and selective. The immobilized NHPI catalysts on mesoporous SiO2 showed excellent activity without significant loss after repeated evaluations, indicating promising prospects for further investigation and potential industrial applications.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Kaikai Niu, Xiaodi Shi, Ling Ding, Yuxiu Liu, Hongjian Song, Qingmin Wang
Summary: A practical chlorine radical-mediated aerobic oxidation method for converting alkylarenes to carbonyls was developed in this study. This strategy utilized HCl as a hydrogen atom transfer reagent and air as a sustainable oxidant, showing excellent functional group tolerance and a broad substrate scope without the need for external metal and oxidants. The mechanistic hypothesis was supported by radical trapping, O-18 labeling, and control experiments.
Article
Chemistry, Organic
Jisun Baek, Tengda Si, Hun Young Kim, Kyungsoo Oh
Summary: A biomimetic ADH-like oxidation protocol using an ortho-naphthoquinone catalyst and a catalytic amount of base has been developed. The organocatalytic aerobic oxidation proceeds through intramolecular 1,5 hydrogen atom transfer, which is mechanistically distinctive from previous ADH mimics that require metals as catalysts. This ADH-like oxidation protocol provides a green alternative to existing stoichiometric and metal-catalyzed alcohol oxidation reactions.
Article
Chemistry, Organic
Jean-Marico Speldrich, Jens Christoffers
Summary: Delta-valerolactone derivatives are formed through the cerium-catalyzed aerobic coupling of beta-oxoesters with enol acetates and dioxygen. The reaction bears similarities to Baeyer-Villiger oxidation but exhibits unique migration patterns, with retention of configuration through 1,2-alkyl shift. Additionally, evidence of a radical chain mechanism in the coupling reaction has been demonstrated.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Tasuku Ito, Falk William Seidel, Xiongjie Jin, Kyoko Nozaki
Summary: TEMPO has been found to function as a hydrogen atom transfer catalyst and homolytically cleave benzylic or allylic C-H bonds to generate alkyl radicals. This finding has led to the successful development of the challenging aerobic dehydrogenation of activated alkanes to alkenes.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Junsu Kim, Da Hye Lee, Jinho Kim
Summary: A copper-catalyzed aerobic oxidative azo-ene cyclization has been developed for the synthesis of oxazolidinones. The reaction involves the aerobic oxidation of ene-containing hydrazides to azo compounds, followed by azo-ene cyclizations. This method also enables the synthesis of lactams and nitroso-ene cyclization, with preliminary mechanistic studies suggesting a concerted mechanism for the azo-ene cyclization involving two carbonyl groups.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Physical
Lukasz Czieszowic, Beata Orlinska, Dawid Lisicki, Ewa Pankalla
Summary: An efficient method for the synthesis of 2-ethylhexanoic acid using oxygen or air in the presence of N-hydroxyphthalimide as a catalyst in isobutanol solvent has been developed. The method achieved a high selectivity of >99% for 2-ethylhexanoic acid and showed potential for implementation in industry due to its green oxidation process and mild reaction conditions. The use of isobutanol as a solvent is crucial for potential producers to utilize less valuable alcohol.
Article
Chemistry, Multidisciplinary
Man Wang, Gan Liang, Yunhao Wang, Tao Fan, Baoling Yuan, Mingxian Liu, Ying Yin, Liangchun Li
Summary: Two highly efficient metal-organic framework catalysts have been synthesized through solvothermal reactions, with highly active nitroxyl catalytic sites for efficient oxidation reactions of alcohols and benzyl compounds under mild conditions. The system is environmentally friendly and sustainable with a simple work-up procedure.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Organic
Tengda Si, Hana Cho, Hun Young Kim, Kyungsoo Oh
Summary: This study developed the catalytic diazotization of aryl amines using ortho-naphthoquinone catalyst under aerobic conditions, with 2-nitropropane as a source of nitrosonium ion. The catalytic generation of diazonium species from aryl amines was further explored in the hydrode-diazotization to yield the corresponding products. Mechanistic studies revealed the involvement of aryl radical species, which readily underwent radical cyclization to form alkenes and halogen abstraction reactions.
Article
Chemistry, Multidisciplinary
Srimanta Manna, Wei-Jun Kong, Jan-E Backvall
Summary: This study presents an iron(II)-catalyzed biomimetic oxidation of N-heterocycles under aerobic conditions, inspired by oxidations in the respiratory chain. The method utilizes environmentally friendly and inexpensive catalysts, delivering important heterocycles in good-to-excellent yields with a broad substrate scope.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xuan Zhang, Yongtao Wang, Jia Yao, Haoran Li, Kenji Mochizuki
Summary: Through molecular dynamics simulations, we studied the properties of pure liquid primary alcohols at ambient conditions, demonstrating that small increases in partial charges can improve the accuracy of simulation results for dynamics, structure, and thermodynamic properties.
JOURNAL OF COMPUTATIONAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Sijie Song, Songna Zhang, Jia Yao, Haoran Li
Summary: The vaporization enthalpies of the new type of chelate-based ionic liquids ([CnTPP][Cu(F-6-acac)(3)] and [C(n)mim][Cu(F-6-acac)(3)]) were measured, and it was found that they were lower than their non-chelate counterparts. This can be explained by the decrease in Coulomb forces caused by the increase in polar region size due to chelate ions. A comparison between experimental data and calculated data showed clear differences on ChILs. In addition, some physicochemical properties of [CnTPP][Cu(F-6-acac)(3)] were also measured.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Review
Chemistry, Organic
Yongtao Wang, Jia Yao, Haoran Li
Summary: This review focuses on recent advances and mechanistic views of aerobic C(sp(3))-H oxidations catalyzed by organocatalysts, where metal catalysis and photocatalysis are not included.
SYNTHESIS-STUTTGART
(2022)
Article
Biochemistry & Molecular Biology
Aikun Fu, Bingqing Yao, Tingting Dong, Yongyi Chen, Jia Yao, Yu Liu, Hang Li, Huiru Bai, Xiaoqin Liu, Yue Zhang, Chunhui Wang, Yajing Guo, Nan Li, Shang Cai
Summary: Tumor-resident intracellular microbiota plays an important role in promoting cancer metastasis, enhancing host-cell survival by increasing resistance to fluid shear stress. Furthermore, administration of intratumor bacteria can also promote tumor metastasis.
Article
Chemistry, Physical
Ruixi Zeng, Fenglian Liu, Shiyi Shen, Wenhui Zhou, Kexian Chen
Summary: Six quantitative structure-activity relationship models were established to explore the structural requirements of 1,3,4-thiadiazol-2-amides for anticancer activity, revealing the significant impact of substituents in aromatic rings on this activity. Some newly designed compounds were predicted to have better anticancer activity than staurosporine.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Jiao Zhang, Jia Yao, Haoran Li
Summary: This study reports changes in the ionicity of a protic ionic liquid (PIL) when mixed with a solvent. The results show that the ionicity of the PIL solution can significantly increase or decrease when highly diluted, offering opportunities for designing PIL solutions.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Oncology
Yizhen Li, Jinxin Zheng, Yujiao Deng, Xinyue Deng, Weiyang Lou, Bajin Wei, Dong Xiang, Jingjing Hu, Yi Zheng, Peng Xu, Jia Yao, Zhen Zhai, Linghui Zhou, Si Yang, Ying Wu, Huafeng Kang, Zhijun Dai
Summary: This study describes the latest epidemiology of female breast cancer worldwide, analyzes the changing patterns of incidence rates and the disease's association with age, period, and birth cohort, and predicts future trends in breast cancer incidence. The results show that the burden of female breast cancer is increasing globally, particularly in developing countries.
FRONTIERS IN ONCOLOGY
(2022)
Article
Multidisciplinary Sciences
Ying Wu, Yujiao Deng, Bajin Wei, Dong Xiang, Jingjing Hu, Peng Zhao, Shuai Lin, Yi Zheng, Jia Yao, Zhen Zhai, Shuqian Wang, Weiyang Lou, Si Yang, Dai Zhang, Jun Lyu, Zhijun Dai
Summary: Cancer is the leading cause of death among children. The global burden of childhood cancer has significantly decreased over the past 30 years, but remains higher in countries with lower social development index (SDI). Leukemia is the most common type of childhood cancer and the leading cause of death. International collaboration should be strengthened to improve healthcare for children with cancer in low SDI countries.
JOURNAL OF ADVANCED RESEARCH
(2022)
Article
Chemistry, Physical
Yue Zhang, Xuan Zhang, Shiyi Tang, Yongtao Wang, Haoran Li, Kenji Mochizuki, Jia Yao
Summary: This research measured the properties of nonstoichiometric n-butylammonium butyrate protic ionic liquids and used various methods to explore the effect of mesostructure on their properties. It was found that hydrogen bonds play a key role in driving the impact of mesostructure on these ionic liquids.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Organic
Yongtao Wang, Wenjing Sun, Rui Lu, Zeyu Wen, Jia Yao, Haoran Li
Summary: In this study, we attempted to develop an aerobic alpha-hydroxylation method for inert alpha-C(sp(3))-H in aliphatic cycloketones under specific conditions. The role of weak inorganic bases in protecting the desired products was revealed through kinetic experiments and substrate scope investigation.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Wenjing Sun, Yongtao Wang, Zeyu Wen, Jia Yao, Haoran Li
Summary: In this study, an efficient transition-metal-free strategy for the aerobic oxidation of (hetero)benzylic C-H bonds to ketone products was reported. The use of DMSO as a high-polar solvent and reductant enabled the reaction without transition-metal catalysis. Kinetic experiments suggested a mixed mechanism with two reaction pathways.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Qi Zhao, Yongtao Wang, Yu Wang, Qixuan Hu, Jia Yao, Zeyu Wen, Haoran Li
Summary: The main product from keto acid to alpha-hydroxyl ketone can be effectively controlled by reducing the concentration of FeCl3 catalyst and using DMSO as the solvent. Mechanistic investigations indicate that the same FeCl3-coordinated peroxide intermediate plays a role in both hydroxylation and C-C cleavage routes, and emphasize the role of DMSO as both ligand and reductant. This work provides a new approach for selective aerobic oxidation under Lewis acid catalysis.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jun Zhu, Yue Zhang, Zeyu Wen, Qiyi Ma, Yongtao Wang, Jia Yao, Haoran Li
Summary: In this study, a highly efficient ruthenium-catalyzed semi-hydrogenation reaction of CO2-derived ureas was reported, resulting in the production of recyclable amines and formamides with high yields (up to 97%). This method shows good substrate applicability and could serve as a sustainable alternative for the hydrogenation of CO2 to formamides in the presence of amines. Furthermore, a new pathway for rapid hydrogenation of urea derivatives even at lower H2 pressure (<5 bar) has been discovered, providing new insights into the reduction functionalization of CO2 to form new C-N bonds.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Jiao Zhang, Huacheng Ying, Yue Zhang, Jia Yao, Haoran Li
Summary: In this study, the polarity of ionic liquids was investigated using ferrocene as the cyclic voltammetry probe. The experimental results showed that there was a linear relationship between the half-wave potential values of ferrocene/ferrocenium measured by cyclic voltammetry and the E(T)(30) values of aprotic ionic liquids. Some polarity rules obtained in this study were consistent with those summarized by other research studies. It was also concluded that the polarity of a protic ionic liquid was slightly weaker than that of its corresponding Bronsted base. This work provides a new and simple method to research the polarities of ionic liquids.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Oncology
Han Wang, Peng Sun, Ruoyu Yao, Wenrui Zhang, Xiaoshuang Zhou, Jia Yao, Kun He
Summary: In this study, PTGES3 was found to be upregulated in most cancers and associated with prognosis, DNA methylation, copy number variation, tumor mutational burden, microsatellite instability, and tumor immune microenvironment in various cancers. High PTGES3 expression was related to the infiltration of Th2 subsets of CD4+ T cells and immune checkpoint-related genes. PTGES3 was involved in cellular processes, including DNA replication and spliceosome. The relationship between PTGES3 expression and HCC progression was verified at the protein level through immune histochemical analysis.
FRONTIERS IN ONCOLOGY
(2023)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
