Article
Materials Science, Ceramics
Yoon Hyung Keum, Jong Yeog Son
Summary: We investigated the ferroelectric switching dynamics, as well as the multiferroic and piezoelectric properties of highly a-oriented epitaxial Bi5Ti3FeO15 (BTFO) thin films on Nb-doped SrTiO3 single crystal substrates. The highly a-oriented epitaxial BTFO thin films exhibited the best ferroelectric properties, while the highly c-oriented epitaxial BTFO thin films exhibited the best ferromagnetic properties. Particularly, the BTFO thin films with a proper mix of a- and c-oriented crystallinity showed the best piezoelectric properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
M. A. Hamad, O. M. Hemeda, Hatem R. Alamri, A. M. Mohamed, Mohamed E. Harb
Summary: The study simulated the magnetization versus temperature dependence of highly (001)-oriented LSM thin films prepared under different oxygen growth pressures to predict magnetocaloric effect. Results show that the MCE of these films is strongly tunable with oxygen growth pressure and is enhanced with increasing pressure. Comparison with other works indicates that the MCE parameters of these films are considerably larger and comparable, suggesting their potential use as functional materials in magnetic refrigeration.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Shuanghao Wu, Liuxue Xu, Kun Zhu, Baijie Song, Hao Yan, Bo Shen, Jiwei Zhai
Summary: The control of grain orientation and enhancement of piezoelectric and ferroelectric properties in thin films were achieved by introducing Nb-doped SrTiO3 single crystalline substrates. Consequently, Nb-doped SrTiO3 substrates facilitated the growth of oriented thin films with larger piezoelectric coefficient, energy storage density, and efficiency, promising broad application prospects.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Physics, Applied
Keita Ito, Jian Wang, Yusuke Shimada, Himanshu Sharma, Masaki Mizuguchi, Koki Takanashi
Summary: The anomalous Nernst effect of Fe4N films grown by molecular beam epitaxy on different substrates was investigated. The films on MgO and MAO substrates showed moderately large anomalous Nernst coefficients, while a large effective S-ANE was obtained in the film on the STO substrate due to the negatively large Seebeck coefficient in the oxygen deficient STO layer.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Aleksandr V. Plokhikh, Iryna S. Golovina, Matthias Falmbigl, Igor A. Karateev, Alexander L. Vasiliev, Jason Lapano, Roman Engel-Herbert, Jonathan E. Spanier
Summary: Epitaxial perovskite oxide superlattice structures were successfully formed on Si wafers using atomic layer deposition at a lower temperature than typical deposition methods. The control over stacking sequence of different constituents was demonstrated in various superlattices. Regardless of the sequence, all structures maintained coherent strain with slight compressive strain from SrTiO3 sublayers transmitted to BaTiO3 layers.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Yiming Shi, Junhua Meng, Jingren Chen, Yanmin Li, Rui Wu, Jinliang Wu, Zhigang Yin, Xingwang Zhang
Summary: Due to good lattice matching and bipolar doping behavior, wide bandgap SrTiO3 (STO) is considered a promising substrate for the heteroepitaxial growth of beta-Ga2O3 to construct (opto-)electronic devices. However, the growth of beta-Ga2O3 film on STO (111) substrate has not been studied extensively. In this work, beta-Ga2O3 (201) thin films were epitaxially grown on STO (111) substrates by low pressure chemical vapor deposition. The impact of source and growth temperatures on the crystal quality and surface roughness of the beta-Ga2O3 films was investigated. The results show that under optimized conditions, the heteroepitaxial beta-Ga2O3 film exhibited narrow X-ray diffraction rocking curve and low surface roughness. Epitaxial growth of beta-Ga2O3 films on STO substrates lays the foundation for future device applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mitsuhiro Muta, Suguru Nishikawa, Ataru Ichinose, Yukio Sato, Makoto Arita, Yoshifumi Ikoma, Masashi Mukaida
Summary: Preferred orientation and optical responses were investigated for BaBiO3 films grown by pulsed laser deposition. The films exhibited monoclinic symmetry I2/m and a (110) preferred orientation. The estimated optical bandgaps were around 2.3 eV for direct transition and 2.1 eV for indirect transition. The decay time of photoconductivity was found to be approximately 0.48 sec. The relationship between ultraviolet light-induced photoconductivity and film crystallinity was clarified, with high-quality crystalline BaBiO3 films exhibiting lower photoconductivity, contrary to TiO2 films.
Article
Materials Science, Multidisciplinary
Yi-Ping Luo, Mei-Jing Huang, Xiaoding Qi
Summary: In this study, epitaxial films of BiCuSeO were successfully grown on SrTtO(3) substrates with different orientations using RF magnetron sputter deposition. The orientation and growth rate of the films exhibited different patterns at different temperatures.
Article
Physics, Multidisciplinary
Haimin Zhang, Dezhi Song, Fuyang Huang, Jun Zhang, Ye-Ping Jiang
Summary: We investigated the growth kinetics of ultra-thin tellurium (Te) films on SrTiO3 (STO) (001) using molecular beam epitaxy (MBE) and scanning tunneling microscopy/spectroscopy. By driving the growth kinetics to the extreme condition, we achieved the growth of ultra-thin beta-Te films with near-complete coverages. Our work establishes the necessary conditions for the growth of ultra-thin materials with similar kinetics and thermodynamics.
Article
Physics, Applied
Tobias Hadamek, Agham B. Posadas, Fatima Al-Quaiti, David J. Smith, Martha R. McCartney, Eric Dombrowski, Alexander A. Demkov
Summary: In this study, thin Ga2O3 films were successfully deposited on SrTiO3 and Si substrates using plasma-assisted molecular beam epitaxy. The orientation and structural alignments of the grains were examined, providing a high-quality seed layer for further epitaxial growth.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Shanquan Chen, Jhong-Yi Chang, Qinghua Zhang, Qiuyue Li, Ting Lin, Fanqi Meng, Haoliang Huang, Yangyang Si, Shengwei Zeng, Xinmao Yin, My Ngoc Duong, Yalin Lu, Lang Chen, Er-Jia Guo, Hanghui Chen, Chun-Fu Chang, Chang-Yang Kuo, Zuhuang Chen
Summary: The spin state of Co ions in epitaxial LaCoO3 thin films under tensile strain has been determined to have mixed high-spin and low-spin states, while it is practically a low-spin state under compressive strain. The identification of this spin state ratio explains the origin of ferromagnetism in LaCoO3 films. This study highlights the importance of spin state degrees of freedom and thin-film strain engineering in creating new physical properties that do not exist in bulk materials.
Article
Nanoscience & Nanotechnology
Daniel Pfuetzenreuter, Martina Zupancic, Zbigniew Galazka, Robert Schewski, Andrea Dittmar, Klaus Irmscher, Martin Albrecht, Jutta Schwarzkopf
Summary: The study found that slight Ba doping in LaInO3 can stabilize the substrate surface, aiding in the epitaxial growth of BaSnO3 thin films. Through pulsed laser deposition, fully strained BaSnO3 films without misfit dislocations were achieved with the negligible lattice mismatch between the BaSnO3 film and Ba-doped LaInO3 substrate.
Article
Materials Science, Multidisciplinary
Deepak Kumar, Ashwin A. Tulapurkar, C. Tomy
Summary: We investigated the proximity effect between ferromagnetic and charge-ordered antiferromagnetic bilayer thin film samples. The results showed that decreasing the thickness of the ferromagnetic layer led to a decrease in both the ferromagnetic transition and metal to insulator transition temperature, an increase in magnetic moments and coercivity. The transport measurement revealed that LSMO remained insulating at low temperatures for a thickness as small as 5 nm. Additionally, a 2 nm thick LSMO bilayer thin film exhibited insulating behavior up to 50 kOe and showed a clear metal to insulator transition when a magnetic field greater than or equal to 70 kOe was applied.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Physics, Applied
T. Kawagoe, S. Suga
Summary: The growth of thin Pd films on Au(001) surfaces has been investigated. The films were found to grow epitaxially with noticeable lattice expansion on the Au(001) surface, and annealing improves the surface morphology. This three-step method enables quasi-layer-by-layer growth.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Binod Paudel, Krishna P. Koirala, Le Wang, Zengqing Zhuo, Mark E. Bowden, Peter. Sushko, Wanli Yang, George E. Sterbinsky, Scott A. Chambers, Tiffany C. Kaspar, Yingge Du
Summary: This study investigates the structure and properties of BaNiO3 (BNO) thin films containing Ni4+ species grown on SrTiO3 (111) substrates using oxygen-plasma-assisted molecular beam epitaxy. The results show that the BNO films have a hexagonal structure with the a-axis texture being dominant due to a smaller lattice mismatch with the substrate. Density functional theory calculations indicate that the hexagonal BNO film with the a-axis texture is energetically more favorable. Spectroscopy analysis reveals that the hexagonal BNO films contain mixtures of Ni2+, Ni3+, and Ni4+ species, with Ni4+ being dominant.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Abdelbassat Kenane, Djebar Hadji, Kadda Argoub, Ahmed Yahiaoui, Aicha Hachemaoui, Khaled Toubal, Ali Mustapha Benkouider, Oana Rasoga, Anca Stanculescu, Aurelian-Catalin Galca
Summary: This paper theoretically investigates the optical activity of polymers based on poly(ortho-anisidine) and polyaniline using density functional theory. The results show high hyper-Rayleigh scattering first hyperpolarizability, making them suitable for nonlinear optical devices. The relationship between the first hyperpolarizability and the energy gap is also explored.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Silvia Mauri, Gianluca D'Olimpio, Corneliu Ghica, Luca Braglia, Chia-Nung Kuo, Marian Cosmin Istrate, Chin Shan Lue, Luca Ottaviano, Tomasz Klimczuk, Danil W. Boukhvalov, Antonio Politano, Piero Torelli
Summary: This study investigates the surface reactivity of a Ni3Sn4 catalyst operating at 250 degrees C for hydrogen production from methanol decomposition. It is found that the catalytic reaction is driven by surface tin-oxide phases, which enhance catalyst durability and H2 selectivity. These findings provide new perspectives for the development of scalable and low-cost catalysts.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
M. Y. Zaki, F. Sava, I. D. Simandan, A. T. Buruiana, C. Mihai, A. Velea, A. C. Galca
Summary: Cu2SnSe3 (CTSe) is a versatile material that can be used as an absorber layer in thin film solar cells or as a starting layer for the synthesis of CZTSe or CZTSSe compounds. However, obtaining CTSe single phase films with optimized properties for solar cells is challenging. In this study, different stack configurations were prepared and analyzed, and it was found that the SnSe2\Cu and Sn\Cu2Se stacks showed the best performance in terms of single phase formation, surface morphology, stoichiometric composition, and band gap.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Raquel Dantas Campos, Andre Luiz Menezes de Oliveira, Arpad Mihai Rostas, Andrei Cristian Kuncser, Constatin Catalin Negrila, Aurelian-Catalin Galca, Camila Felix, Lucio Castellano, Fausthon Fred da Silva, Ieda Maria Garcia dos Santos
Summary: Recently, there has been interest in utilizing zeolitic imidazole frameworks (ZIFs) and TiO2 based composites to control the growth of pathogenic microorganisms. In this study, two novel TiO2/ZIF-67 nanocomposites were synthesized using microwave-assisted solvothermal methods, with one pot composite (OPC) and two step composite (TSC) syntheses. The results showed that the TSC sample had higher antimicrobial activity compared to pure ZIF-67, while the OPC sample had lower activity. The difference in antimicrobial performance can be attributed to the structural order/disorder and material solubility, which depend on the synthesis route used.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Pharmacology & Pharmacy
Lavinia Brazdaru, Teodora Staicu, Madalina Georgiana Albu Kaya, Ciprian Chelaru, Corneliu Ghica, Viorel Circu, Minodora Leca, Mihaela Violeta Ghica, Marin Micutz
Summary: The treatment of wounds requires appropriate dressings to ensure tissue regeneration and prevent bacterial infections. In this study, we designed an algorithm to monitor and analyze the release of antimicrobial agents from collagen-based matrices. By controlling the crosslinking degree and loading content, a tunable and sustainable release profile can be achieved.
Article
Chemistry, Analytical
Teddy Tite, Cosmin Ungureanu, Mihaela Buga, Ionel Stavarache, Elena Matei, Constantin Catalin Negrila, Lucian Trupina, Adnana Spinu-Zaulet, Aurelian Catalin Galca
Summary: This research presents a synthesis method for a thin-film cathode that can enhance the electrochemical performance of batteries. V2O3 thin films were successfully synthesized on graphene/aluminum foil and tested as cathodes. The experimental results demonstrate that the V2O3 thin films exhibit superior electrochemical properties, especially with the addition of tin (5 mol%) which improves the initial capacity and cycling performance of the batteries.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Outman El Khouja, Khalid Nouneh, Mohamed Ebn Touhami, Elena Matei, Viorica Stancu, Monica Enculescu, Aurelian Catalin Galca
Summary: Cu2NiSnS4 (CNTS) absorber layers were fabricated by electrodeposition at different applied potentials followed by sulfurization treatment at 450 degrees C. Microstructural investigations showed the presence of Cu4SnS4 secondary phases which can be reduced using an applied potential of -1.15 V vs. Ag/AgCl. The competing detrimental hydrogen evolution regresses the morphology and composition when using the corresponding cathodic potential for Ni2+. The film with the highest Ni concentration has a band gap of 1.44 eV inferred from diffuse reflectance data. The Randles cell model was probed using electrochemical impedance spectroscopy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
S. Derbali, K. Nouneh, L. N. Leonat, V. Stancu, A. G. Tomulescu, A. C. Galca, M. Ebn Touhami, I. Pintilie, M. Florea
Summary: Replacing toxic lead atoms in halide perovskite materials with non-toxic elements has been explored to develop environmentally friendly perovskite solar cells. In this study, the effect of doping hybrid perovskite MAPbI(2.6)Cl(0.4) with non-toxic elements, such as Mg2+ and Zn2+, was investigated. The structural, morphological, and optical properties of the doped samples were analyzed, and the doped films were utilized as photoactive layers in solar devices to evaluate their photovoltaic performance. Zn doping showed better results in terms of film quality and the MAPb1(-x)Zn(x)I(2.6)Cl(0.4) based solar cells exhibited improved photovoltaic performances compared to pristine MAPbI(2.6)Cl(0.4) based devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Federico Mazzola, Yanxue Zhang, Natalia Olszowska, Marcin Rosmus, Gianluca D'Olimpio, Marian Cosmin Istrate, Grazia Giuseppina Politano, Ivana Vobornik, Raman Sankar, Corneliu Ghica, Junfeng Gao, Antonio Politano
Summary: Nonmagnetic chiral crystals are a new type of materials that possess Kramers-Weyl Fermions due to the combination of structural chirality, spin-orbit coupling, and time-reversal symmetry. These materials exhibit unique Fermi surfaces with spin-orbit coupling-induced Chern gaps, leading to exotic transport and optical properties. This study investigates the electronic structure and transport properties of CdAs2, a recently discovered chiral material, using angle-resolved photoelectron spectroscopy and density functional theory. The results suggest that CdAs2 is a promising candidate for novel topological properties and provide valuable insights for the development of spintronic and optical devices based on chiral charges and nontrivial Chern numbers.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
M. Ciobanu, A. C. Galca, F. Sava, M. Y. Zaki, A. Velea, D. Tsiulyanu
Summary: The molecular structure of thin films based on non-stoichiometric chalcogenide glasses differs from that of the initial bulk material, and is more pronounced in the form of films grown from the vapor phase.
Article
Materials Science, Multidisciplinary
Marwene Oumezzine, Alin Iuga, Monica Enculescu, Aurelian Catalin Galca
Summary: Zinc substituted nickel-cobalt ferrites with average crystallite size 100 nm were synthesized and their effects on structural and dielectric properties were investigated. The results show that the dielectric responses of Zn substituted ferrites are frequency dependent and thermally activated. The presence of non-Debye type dielectric relaxation was observed, and the rise in Zinc concentration leads to a decrease in dielectric constant. The low loss tangent factor and high activation energy make Zn(0.2)Co(0.2)Fe(2)O(4) suitable for high frequency-applications at room temperature.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Ana Rita Ferreira Alves Teixeira, Andre Luiz Menezes de Oliveira, Florentina Neatu, Andrei Cristian Kuncser, Aurelian Catalin Galca, Arpad Mihai Rostas, Ieda Maria Garcia dos Santos
Summary: Sodium hexatitanate (Na2Ti6O13) nanoparticles were synthesized using hydrothermal method with microwave and conventional heating, and their photocatalytic properties were investigated. X-band electron paramagnetic resonance (EPR) spectroscopy was used for the first time to study the dynamics and reactivity of species involved in the photocatalytic mechanism of the (Na2Ti6O13) samples. X-ray diffraction analysis revealed a monoclinic C2/m structure in all samples with different short-range structural order based on the heating method. The presence of Ti3+ point defects, F centers, and oxygen-related defects were observed through EPR and X-ray photoelectron spectroscopy.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Ceramics
M. Y. Zaki, F. Sava, I. D. Simandan, A. T. Buruiana, A. E. Bocirnea, I. Stavarache, A. Velea, A. C. Galca, L. Pintilie
Summary: One of the challenges in developing Cu2ZnSnSe4 (CZTSe) thin film solar cells is achieving a single-phase CZTSe compound. This study successfully synthesizes Cu2ZnSnSe4 thin films through sequential deposition of non-stoichiometric Cu2SnSe3 (CTSe) and ZnSe films. The films show desired structural, morphological, and electrical properties, and have significant potential for use in thin film solar cells.
CERAMICS INTERNATIONAL
(2023)
Article
Pharmacology & Pharmacy
Bogdan Purcareanu, Manuela Diana Ene, Alina Morosan, Dan Eduard Mihaiescu, Mihai Alexandru Florea, Adelina Ghica, Roxana Andreea Nita, Veronica Drumea, Mihai Alexandru Grigoroscuta, Andrei Kuncser, Petre Badica, Laura Olariu
Summary: The treatment of wounds remains a challenge for healthcare professionals, and the development of biocompatible and efficient medicines is a goal. Mesoporous materials loaded with bioactive compounds from natural extracts have potential for wound treatment. In this study, MCM-41-type mesoporous material was synthesized and characterized. The desorption degree of the natural extracts was monitored, and the active ingredients in the composite materials were quantified. The evaluation of the biological composites' activity on the wound site revealed their re-epithelializing properties.
Article
Chemistry, Multidisciplinary
Laura E. Abramiuc, Liviu C. Tanase, Mauricio J. Prieto, Lucas de Souza Caldas, Aarti Tiwari, Nicoleta G. Apostol, Marius A. Husanu, Cristina F. Chirila, Lucian Trupina, Thomas Schmidt, Lucian Pintilie, Cristian M. Teodorescu
Summary: The free surface ferroelectric properties of thin polar films can be studied by estimating band bending variance or by analyzing the extrinsic charge outside the surface. In this study, the ferroelectric lead zirco-titanate (PZT) is investigated using a combination of low energy/mirror electron microscopy (LEEM/MEM), photoemission electron microscopy (PEEM), and high-resolution photoelectron spectroscopy (XPS). The results show a significant accumulation of extrinsic negative compensation charge on the outward polarized thin film surface, indicating a correlation with the surface electrostatic potential. It is observed that air-exposed high-quality ferroelectric thin films have large negative surface potentials, which are sensitive to beam damage and molecular desorption.
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)
