Article
Engineering, Environmental
Yang Liu, Junxue Guo, Yuping Long, Hongpeng Zhou, Hai-Qiao Wang, Jiaxing Song
Summary: Benzylammonium cation (BA) and difluorinated BA (DFBA) play different roles on the perovskite surface. BA transforms 3D perovskite into 2D perovskite, but the random orientation of 2D perovskite hinders charge extraction and increases nonradiative charge recombination. On the other hand, DFBA cannot form 2D perovskite, but it interacts directly with the perovskite surface, improving the contact with the Spiro-OMeTAD layer and promoting interfacial charge extraction, thus enhancing the efficiency of perovskite solar cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Xichong Ye, Bowen Li, Zhaoxu Wang, Jing Li, Jie Zhang, Xinhua Wan
Summary: Hierarchically ordered chiral crystals have been the focus of intensive research efforts due to their potential applications in optical devices, asymmetric catalysis, and pharmaceutical crystal engineering. However, the use of expensive enantiomerically pure building blocks and the challenge of precise control over chirality transfer have hindered their practical application. A new strategy described in this study offers a solution by enabling the preferred formation of one enantiomorph from a racemic solution and subsequent enantiomer-specific oriented attachment through a balance of stereoselective and non-stereoselective interactions. This methodology allows for the efficient fabrication of homochiral organic crystals from racemic starting materials, demonstrating the potential for immediate practical use.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Si-Ming Wu, Yi-Tian Wang, Shi-Tian Xiao, Yan-Xiang Zhang, Ge Tian, Jiang-Bo Chen, Xiao-Fang Zhao, Christoph Janiak, Menny Shalom, Detlef W. Bahnemann, Li-Ying Wang, Xiao-Yu Yang
Summary: Directed transfer of carriers in semiconductors by structural design is challenging but important. In this study, TiO2 nanosheets with interlayered sp(2) carbon and titanium vacancies were obtained, and the directed transfer of carriers from the excited position to Ti-vacancies to interlayered carbon was observed. This greatly increased the charge transport efficiency and resulted in excellent photocatalytic and photoelectrochemical activity, as well as significant lithium/sodium ion storage performance. Theoretical calculations further revealed the mechanism of spatial inside-out cascade electron transfer.
Article
Chemistry, Multidisciplinary
Xiao Liu, Jing Lv, Shunwei Yao, Yanan Wang, Lin Peng, Jing Chen, Xiaolin Liu, Jia Lin, Xianfeng Chen
Summary: This article reports on stable CsPbI3 nanocrystals that are protected by a new organic ligand, HO-PS-N-3 (HOPS), to improve their stability. The optimized CsPbI3 nanocrystals have significantly improved resistance to moisture or light, and maintain 70% of their original luminous intensity after immersion in water for two months. Therefore, surface-stabilized CsPbI3 nanocrystals are beneficial for a wide range of optoelectronic applications.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Multidisciplinary Sciences
Youngsik Kim, Hyekyoung Choi, Yeunhee Lee, Weon-kyu Koh, Eunhye Cho, Taewan Kim, Hamin Kim, Yong-Hyun Kim, Hu Young Jeong, Sohee Jeong
Summary: This study introduces InP tetrapod nanocrystals as a crystalline late intermediate in the synthesis pathway of covalent III-V nanocrystals, demonstrating their role in controlled growth and potential applications in tailored growth.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Mingquan Liao, Mengling Xia, Yinsheng Xu, Ping Lu, Guangda Niu
Summary: Metal halide perovskite (MHP) single crystals (SCs) are highly promising for photodetectors and photovoltaic devices due to their exceptional optoelectronic properties. This review focuses on the difference in growth mechanism between MHP SCs in solution and traditional SCs synthesized by the melting method. It discusses the dissolution, nucleation, and growth processes, and provides a summary of recent advances in the preparation of MHP SCs based on the unique growth mechanism of the perovskite system.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Cong Fu, Fei Li, Jiachen Zhang, Dan Li, Kun Qian, Yong Liu, Junwang Tang, Fengtao Fan, Qun Zhang, Xue-Qing Gong, Weixin Huang
Summary: The study found that Ti sites exposed on {001} facets of anatase TiO2 nanocrystals have a significant impact on the photocatalytic oxidation of methanol, with CH3O(a)(Ti4c) showing high efficiency in photocatalytic oxidation rates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Fei Fang, Yuanxu Liu, Xiao Sun, Cong Fu, Yagna Prakash Bhoi, Wei Xiong, Weixin Huang
Summary: The study explores the impact of CuOx-TiO2 interaction on CO2 photocatalysis, with CuOx/TiO2-{001} showing the strongest interaction favoring the reduction of CO2 to CH4. Different TiO2 crystal facets exhibit varying abilities in supporting CuO species and influencing the photocatalytic reaction pathway. The results deepen the fundamental understanding of Cu-based photocatalysts and highlight the facet effect of TiO2 nanocrystals in TiO2-related photocatalysis.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yue Ji, Samantha Waters, Eunhyang Lim, Augustus W. Lang, Peter N. Ciesielski, Meisha L. Shofner, John R. Reynolds, J. Carson Meredith
Summary: By adjusting the deacetylation conditions of chitin, nanowhiskers with different characteristics were prepared and spray-coated with cellulose nanocrystal suspensions onto cellulose acetate films to form a multilayer structure. The optimized film showed a significant decrease in oxygen permeability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Shideng Yuan, Shasha Liu, Xueyu Wang, Heng Zhang, Shiling Yuan
Summary: In this work, a multiscale and comprehensive study was conducted to investigate the heterogeneous interaction between H2O2 and TiO2 particles. The adsorption of H2O2 and H2O on the TiO2 surface was found to be primarily determined by the weaker interaction between Ti and O atoms. The adsorption energy was dominated by electrostatic effect, and the adsorption energy of TiO2-H2O complexes was lower than that of TiO2-H2O2 ones. H2O2 and H2O interacted with TiO2 particles through molecular adsorption and dissociation, resulting in surface modification and Ti-OH formation. The uptake of H2O2 on TiO2 surface was suppressed with increasing humidity, possibly due to competition for surface sites with H2O.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Ceramics
Xu Guo, Jingrui Kang, Rui Gu, Honglei Hao, Yi Tang, Li Jin, Xiaoyong Wei
Summary: In this work, Ti1-x(Tm0.5Nb0.5)xO2 (TTNOx) ceramics were prepared via the solid state method, and low dielectric loss and colossal permittivity were achieved through defect regulation. This study has important implications for the application of colossal permittivity ceramic materials.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yun Dang, Xin Li Phuah, Han Wang, Bo Yang, Haiyan Wang, Anthony R. West
Summary: Ti1-xCrxO2-x/2-delta powders and ceramics with various Cr doping concentrations were prepared by solid state reaction, showing homogeneous distribution of doping ions and unique charge compensation mechanisms at different doping levels, resulting in electronic insulation, semiconduction, and core-shell structures. The lattice parameters exhibited non-linear Vegard's law behavior with a maximum cell volume at intermediate Cr doping concentrations, attributed to the presence of Ti3+ ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Yun Ling, Qingyun Feng, Huiqi Xie, Xuan Zheng, Xiaoping Chen, Zehua Zou, Aifen Liu, Jing Tang, Yi Li, Qingxiang Wang
Summary: A phase-transition engineering strategy is developed to regulate oxygen vacancy and metal doping on the surface of M-TiO2, promoting both the selectivity and activity of the nitrogen reduction reaction (NRR). The strategy features simple synthesis process, high phase-transition efficiency, cost-effective materials, and scalability. Experimental results and density functional theory calculations show that surface oxygen vacancies and doping Fe atoms play crucial roles in the NRR, resulting in high NH3 yield and Faradaic efficiency.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Sumanta Mukherjee, Nimai Pathak, Debarati Das, Dhanadeep Dutta
Summary: This study investigates the role of various defect clusters in distorted NaMgF3 perovskite on tuning optical properties, focusing on the luminescence of lanthanide ions such as Eu3+. Defect engineering through doping aliovalent ions creates charge imbalance in the matrix, resulting in the formation of mono-, di-, and new cluster vacancies. Characterization techniques like EPR, PALS, and PL studies confirm the existence of cluster vacancies and their impact on emission profiles and decay kinetics of Eu3+ ions. Additionally, co-doping with Li+ ions alters the vacancy clusters, affecting emission characteristics and decay kinetics. Overall, this research provides insights into defect structures and their influence on physical properties in distorted NaMgF3 perovskite.
Article
Materials Science, Ceramics
Jiangtao Fan, Tiantian Yang, Yongfan Cao, Jiyan Liang
Summary: In this study, ceramics of (Tb0.5Ta0.5)(x)Ti1-xO2 with new defect clusters were fabricated, showing large dielectric constants, and one of the samples exhibited ultralow loss at room temperature and 1 kHz. The excellent dielectric properties were attributed to defective dipoles associated with oxygen vacancies, which limited the long-range hopping of electrons and caused the electron pinning effect. Grain boundary and electrode effects also contributed to the dielectric constant.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jiaoxing Xu, Chuxin Wu, Qiangmin Yu, Yi Zhao, Xun Li, Lunhui Guan
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Wenming Tong, Hadas Katz-Boon, Michael J. Walsh, Matthew Weyland, Joanne Etheridge, Alison M. Funston
CHEMICAL COMMUNICATIONS
(2018)
Review
Energy & Fuels
Wenming Tong, Mark Forster, Fabio Dionigi, Soeren Dresp, Roghayeh Sadeghi Erami, Peter Strasser, Alexander J. Cowan, Pau Farras
Review
Biotechnology & Applied Microbiology
Paolo Dessi, Laura Rovira-Alsina, Carlos Sanchez, G. Kumaravel Dinesh, Wenming Tong, Pritha Chatterjee, Michele Tedesco, Pau Farras, Hubertus M. V. Hamelers, Sebastia Puig
Summary: Decarbonisation of the economy is a global priority, and microbial electrosynthesis technology is a promising solution to drive this transition. However, technological challenges need to be addressed for industrial adoption, and cost-effective production strategies must be developed.
BIOTECHNOLOGY ADVANCES
(2021)
Article
Nanoscience & Nanotechnology
Yaqi Cui, Jiaoxing Xu, Yi Zhao, Lunhui Guan
Summary: In this study, a nanoporous nitrogen-rich single atom Fe-N/C electrocatalyst was successfully prepared, showing excellent performance in the oxygen reduction reaction and outperforming commercial Pt/C catalyst, indicating great potential for application in metal-air batteries.
Correction
Energy & Fuels
Wenming Tong, Mark Forster, Fabio Dionigi, Soren Dresp, Roghayeh Sadeghi Erami, Peter Strasser, Alexander J. Cowan, Pau Farras
Article
Chemistry, Physical
Weilun Li, Wenming Tong, Anchal Yadav, Eva Bladt, Sara Bals, Alison M. Funston, Joanne Etheridge
Summary: The shape of metal nanocrystals is influenced by seed nucleation and growth environments, with surface energies and crystallinity affected by the choice of environments. By deliberately incorporating twin planes during post-seed growth, new final morphologies can be delivered, offering new routes for synthesizing different morphologies and facet orientations by breaking symmetry and introducing new facet orientations.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Biomaterials
Ahmed Ahmed, Constantinos G. Efthymiou, Rana Sanii, Ewa Patyk-Kazmierczak, Amir M. Alsharabasy, Meghan Winterlich, Naveen Kumar, Debobroto Sensharma, Wenming Tong, Sarah Guerin, Pau Farras, Sarah Hudson, Damien Thompson, Michael J. Zaworotko, Anastasios J. Tasiopoulos, Constantina Papatriantafyllopoulou
Summary: Metal-organic frameworks have shown promising potential for biomedical and environmental applications. This study presents the synthesis and characterization of a new MOF with high drug loading capacity and pH-controlled release. The MOF also demonstrates protective effects against cellular toxicity and potential for gas separation.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Chemistry, Physical
Sean Hennessey, Christopher S. Burke, Roberto Gonzalez-Gomez, Debobroto Sensharma, Wenming Tong, Amal, Cherian Kathalikkattil, Fabio Cucinotta, Wolfgang Schmitt, Tia E. Keyes, Pau Farras
Summary: A new multimetallic photoactive coordination polymer with high photostability and unique optical properties has been successfully synthesized.
Article
Chemistry, Physical
G. Kumaravel Dinesh, Paolo Dessi, Wenming Tong, Roberto Gonzalez-Gomez, Pau Farras
JOHNSON MATTHEY TECHNOLOGY REVIEW
(2022)
Article
Materials Science, Multidisciplinary
Weilun Li, Wenming Tong, Joanne Etheridge, Alison M. Funston
Summary: Shape and size control of metal nanocrystals is important for tuning their physicochemical properties. In this study, the growth mechanisms of gold nanocuboids and the influence of copper additives were investigated. The presence of copper additives led to asymmetrical growth and the formation of nanobars instead of nanocubes, accompanied by a reduction in particle size. This was attributed to a combination of rapid deposition on {111} facets and slow surface diffusion rate introduced by surface copper.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Jiaoxing Xu, Yaqi Cui, Meilin Wang, Guoliang Chai, Lunhui Guan
Summary: Sulfur-and-nitrogen-codoped few-layered graphene synthesized by a pyrimidine-assisted chemical-vapor-deposition method exhibits exceptional activity and selectivity for two-electron oxygen reduction reaction (2e(-) ORR) in acidic electrolyte, leading to efficient production of H2O2.
Article
Chemistry, Multidisciplinary
Ioannis Mylonas-Margaritis, Julia Mayans, Wenming Tong, Pau Farras, Albert Escuer, Patrick McArdle, Constantina Papatriantafyllopoulou
Summary: The study has successfully synthesized five new coordination compounds, with 4 and 5 being the first metal-organic frameworks (MOFs) based on Hhmp. Magnetic susceptibility measurements in 5 revealed the presence of antiferromagnetic coupling between Fe-II cations.
Article
Engineering, Chemical
Temitope F. Ajibade, Jiaoxing Xu, Huali Tian, Lunhui Guan, Kaisong Zhang
Summary: By modifying the PAN/PVDF blended UF membrane with oxidized multiwall carbon nanotubes, the novel O-MWCNT/PAN/PVDF membrane achieved high oil emulsion separation performance and increased flux, while also improving antifouling properties by 96%. This membrane demonstrates promising properties in balancing permeability and selectivity, enhancing mechanical strength, and prolonging membrane lifespan in oily wastewater treatment.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Inorganic & Nuclear
Cui Ya-Qi, Xu Jiao-Xing, Wang Mei-Lin, Guan Lun-Hui
Summary: This study presents a selective and efficient nonprecious electrocatalyst for synthesizing H2O2 through oxygen reduction reaction (ORR) with a 2-electron process. The high-degree oxidized single-walled carbon nanotubes treated by mixed acids show the highest activity and selectivity for this process, offering insights into the use of defected carbon surface as active catalytic sites for 2-electron ORR.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
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)
