Article
Materials Science, Multidisciplinary
Detian Yang, Yu Yun, Arjun Subedi, Nicholas E. Rogers, David M. Cornelison, Peter A. Dowben, Xiaoshan Xu
Summary: This study found a significant intrinsic exchange bias in epitaxial CoFe2O4 (111) films grown on Al2O3 (0001) substrates, likely due to a hidden antiferromagnetic composition in the interfacial layer coupled to the ferrimagnetic bulk part. The identification of CoO as a probable candidate for the antiferromagnetic composition in the interfacial layer highlights the potential for enhancing intrinsic exchange bias through structural differences between film and substrate.
Article
Physics, Applied
Sudhir Regmi, Zhong Li, K. C. Shambhu, Rabin Mahat, Ankur Rastogi, Ranjan Datta, Arunava Gupta
Summary: Epitaxial thin films of cobalt ferrite have been successfully grown on isostructural substrates using pulsed laser deposition. The films on ZnGa2O4 substrates are defect-free and under slight compressive strain, while the films on MgGa2O4 substrates show strain relaxation and defect formation.
APPLIED PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Tianyu Liu, Lvkang Shen, Shao-Dong Cheng, He Wang, Yixuan Li, Ming Liu
Summary: Inserting a graphene layer into magnetic oxide thin films can improve the linearity of the anomalous Hall effect, resulting in better performance and sensitivity for magnetic sensor applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Ying Liu, Zhiheng Mei, Yizhong Guo, Peng Zhou, Yajun Qi, Kun Liang, Zhijun Ma, Zhengcai Xia, Amitava Adhikary, Cunzheng Dong, NianXiang Sun, Gopalan Srinivasan, Tianjin Zhang
Summary: This report discusses the strain control of magnetic order parameters in epitaxial NiFe2O4 films grown on various single-crystal substrates. Analysis shows the presence of a uniaxial anisotropy field perpendicular to the film plane, with the field decreasing as strain in the films increases. The experimental values of anisotropy field are significantly smaller than the calculated values due to film defects induced by high lattice mismatch.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Nanoscience & Nanotechnology
Monalisha Peda, P. S. Anil Kumar
Summary: Epitaxial ferrimagnetic thin films of (Co, Ru) Fe2O4 were grown on MgO (001) substrate using pulsed laser deposition technique. Ruthenium substitution in cobalt ferrite increased the conductivity significantly. The film exhibited high coercivity, perpendicular magnetic anisotropy, and different conduction mechanisms with temperature variation.
Article
Materials Science, Multidisciplinary
Avisek Das, Annarose J. Palliyan, Ajit Kumar Sahoo, Jyoti Ranjan Mohanty, Venkataiah Gorige
Summary: This study investigates the correlation between structure, morphology, and magnetic properties of (111)-oriented cobalt ferrite thin films with varying film thickness. The films were deposited on Pt-coated Si substrate using pulsed laser deposition. The study confirms the growth orientation of the cobalt ferrite films and reveals the effect of lattice relaxation on film morphology. The magnetic measurements show spin reorientation and the presence of competing magnetic anisotropies in the films, suggesting potential applications in room-temperature devices.
Article
Materials Science, Coatings & Films
Arjun Subedi, Detian Yang, Yu Yun, Xiaoshan Xu, Peter A. Dowben
Summary: The research found that CoFe2O4(111) thin films grown on Al2O3(0001) substrates exhibit significant differences between the surface and bulk, with distinct components identified through core level photoemission spectra.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Chemistry, Multidisciplinary
Pendaranahalli Nadikeraiah Anantharamaiah, Hadonahalli Munegowda Shashanka, Srikari Srinivasan, Debabrata Das, Ahmed A. El-Gendy, C. V. Ramana
Summary: This study reports on the fabrication, characterization, and evaluation of cobalt ferrite nanocrystalline thin films on a flexible mica substrate. The CFO films exhibited single-phase and nanocrystalline nature, spherical shape morphology, and suitable magnetic and magnetostrictive properties for flexible sensor devices.
Article
Physics, Applied
Daisy O'Mahoney, Sanyum Channa, Xin Yu Zheng, Arturas Vailionis, Padraic Shafer, Alpha T. N'Diaye, Christoph Klewe, Yuri Suzuki
Summary: Developed epitaxial spinel structure ferrite thin films of Li-0.5(AlxFe2.5-x)O-4 with ultra-low magnetic damping. Al substitution tunes saturation magnetization and in-plane magnetic anisotropy while maintaining excellent epitaxy and low damping. Element-specific x-ray magnetic circular dichroism measurements confirm magnetism originates from Fe3+ cations occupying octahedral sites.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Shekhar Tyagi, V. G. Sathe, Gaurav Sharma, Rajeev Rawat
Summary: In this study, epitaxial thin films of SrRuO3 with large strain disorder were grown using pulsed laser deposition on LSAT and SrTiO3 substrates. Magnetic force microscopy was used to visualize the evolution of magnetic domains across the two transitions in these films. The results showed that the magnetic anisotropy in the films was different for the two transitions, with perpendicular magnetic anisotropy dominating. Raman spectroscopy revealed a strong influence of magnetic order on the lattice, indicating a strong spin-phonon coupling.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Hiroshige Onoda, Hiroaki Sukegawa, Jun-Ichiro Inoue, Hideto Yanagihara
Summary: The study demonstrates perpendicular magnetic anisotropy (PMA) energy up to K-u = 6.1 +/- 0.8MJm(-3) in epitaxially distorted cobalt ferrite thin films, attributing the large PMA to significantly enhanced magneto-elastic effects. The induced K-u can be quantitatively explained by the agreement between the local crystal field of Co2+ and the phenomenological magneto-elastic model, even under lattice distortions as large as 3.2%. Utilizing a non-magnetic spinel layer to control tetragonal lattice deformation could be a promising approach for developing materials with large magnetic anisotropies.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Vladimir N. Kats, Leonid A. Shelukhin, Pavel A. Usachev, Dmitry V. Averyanov, Igor A. Karateev, Oleg E. Parfenov, Alexander N. Taldenkov, Andrey M. Tokmachev, Vyacheslav G. Storchak, Victor V. Pavlov
Summary: In this study, pump-probe measurements were conducted on EuO-based ferromagnets using a time-resolved two-color stroboscopic technique, revealing photo-induced magnetization precession. The effects of temperature, magnetic field, and polarization light helicity on the magnetization dynamics were investigated. It was found that optical spin orientation by electronic transitions triggers collective magnetization precession in these materials, suggesting potential applications in optoelectronics and spintronics.
Article
Chemistry, Physical
V. G. Myagkov, L. E. Bykova, V. S. Zhigalov, A. A. Matsynin, S. M. Zharkov, A. A. Ivanenko, G. N. Bondarenko, D. A. Velikanov
Summary: We report the formation of epitaxial D03-Fe3Rh(001) films grown during solid-state reaction in Rh/Fe(001) bilayers on MgO(001) substrates. A new ordered phase, in addition to the B2-FeRh phase, was formed in Fe68Rh32 composition above 400 degrees C. The new phase is identified as the D03-Fe3Rh(001) phase, exhibiting a cube-on-cube orientation relationship with the MgO(001) substrate. The D03-Fe3Rh sample possesses high saturation magnetization and is a soft magnetic material.
Article
Multidisciplinary Sciences
Xiaoqian Zhang, Qiangsheng Lu, Wenqing Liu, Wei Niu, Jiabao Sun, Jacob Cook, Mitchel Vaninger, Paul F. Miceli, David J. Singh, Shang-Wei Lian, Tay-Rong Chang, Xiaoqing He, Jun Du, Liang He, Rong Zhang, Guang Bian, Yongbing Xu
Summary: Growth and properties of single- and few-layer CrTe2 on bilayer graphene by molecular beam epitaxy (MBE) have shown intrinsic ferromagnetism with a Curie temperature up to 300 K and perpendicular magnetic anisotropy, providing a new avenue for developing large-scale 2D magnet-based spintronics devices.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
R. K. Basumatary, H. Basumatary, M. M. Raja, R. Brahma, S. K. Srivastava
Summary: FePtCo ternary alloy films were prepared on Si-substrate by co-sputtering of Co with FePt under three different conditions. The surface roughness, crystal structure, and magnetic properties of these films were investigated. The results showed that the films had varying surface roughness and crystallized in a close-packed FCC structure. The magnetic measurement indicated that the films exhibited low coercivity and excellent in-plane magnetic anisotropy, with the values of saturation magnetization and effective anisotropy energy changing with Co content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
G. D. Soria, A. Serrano, J. E. Prieto, A. Quesada, G. Gorni, J. de la Figuera, J. F. Marco
Summary: We investigated the influence of the annealing treatment on the crystalline growth of previously deposited SrFe12O19 films on Si (100) substrates by RF magnetron sputtering. The results showed that the as-grown film consisted of nanocrystalline maghemite nanoparticles and amorphous strontium oxide, while the annealed film exhibited a strontium hexaferrite canonical structure with a c-axis orientation. The findings were obtained through various analysis techniques, including Mossbauer spectroscopy, EXAFS, and XANES data.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
P. G. de la Iglesia, O. Garcia-Moreno, J. L. Menendez, R. Torrecillas, J. F. Marco
Summary: Calcium hexaluminate forms solid solutions with magnetic ions, allowing for the design of magnetic behavior based on composition. In this study, various synthesis methods of calcium hexaluminate with iron were investigated to determine the maximum percentage of iron that can exhibit magnetic behavior.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Biomaterials
Arturo Vera, Isidoro Martinez, Luiz Guilherme Enger, Bruno Guillet, Ruben Guerrero, Jose Manuel Diez, Olivier Rousseau, Marc Lam Chok Sing, Victor Pierron, Paolo Perna, Jaime J. Hernandez, Isabel Rodriguez, Ivo Calaresu, Anja Meier, Carmen Huck, Ana Dominguez-Bajo, Ankor Gonzalez-Mayorga, Elisa Lopez-Dolado, Maria C. Serrano, Laura Ballerini, Lucas Perez, Rodolfo Miranda, Stephane Flament, Maria Teresa Gonzalez, Laurence Mechin, Julio Camarero
Summary: We have developed an implantable neural interface based on anisotropic magnetoresistive (AMR) magnetic-field sensors, which have reduced size and high performance at body temperature. The sensors use La0.67Sr0.33MnO3 (LSMO) as a ferromagnetic material, engineered to have uniaxial anisotropy and large AMR output with low noise even at low frequencies. The LSMO sensors have been optimized to detect low magnetic signals from neural activity with a sensitivity of approximately 400%/T, making them suitable for implantable detectors.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Physical
Anna Mandziak, Miguel A. Aristu, Jose Emilio Prieto, Michael Foerster, Lucia Aballe, Juan de la Figuera
Summary: We investigated the response of magnetic domains in thin magnetite microstructures to weak external magnetic fields. The magnetic domains were observed using x-ray magnetic circular dichroism in photoemission electron microscopy, while applying external magnetic fields in different directions. The displacements of the Landau state vortex core under the applied magnetic field were quantified and compared with micromagnetic simulations. The results demonstrate the bulk-like magnetic properties of the nanometer-thick microstructures and their potential for technological applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Nicolas Soto-Donos, Lidia Favier, Sandra Fuentes Villalobos, Veronica Paredes-Garcia, Thierry Bataille, Jose F. Marco, Raluca Maria Hlihor, Eric Le Fur, Diego Venegas-Yazigi
Summary: This study successfully synthesized a new composite named TiO2@La(OH)2Cl using a sol-gel and hydrothermal route. The composite consists of micrometric platelets of La(OH)2Cl covered by c.a. 10 nm TiO2 anatase nanoparticles. The composite exhibited excellent photocatalytic activity compared to pure anatase and pure La(OH)2Cl, showing the positive role of the synergy between the two solids. The composite was also effective in degrading cetirizine and showed low toxicity in phytotoxicity investigations. These findings demonstrate the excellent catalytic efficiency and potential applications of the new synthesized material for water purification.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Geology
Javier Garcia-Guinea, Fernando Gervilla, Fernando Garrido, Virgilio Correcher, Jose F. Marco, Laura Tormo
Summary: Antimony ochres are yellowish antimony oxo-hydroxides formed by the weathering of Stibnite (Sb2S3). They have a pyrochlore-type structure and contain Ca and water molecules. Due to their chemical variability and similar X-ray diffraction patterns, additional techniques are needed to distinguish between different minerals. This study characterizes the antimony ochres from Cervantes (Spain) and Brasina (Serbia) by analyzing their chemical composition, structure, thermal properties, and speciation using techniques such as X-ray diffraction, Raman spectroscopy, FTIR, and XPS.
ESTUDIOS GEOLOGICOS-MADRID
(2023)
Article
Microscopy
Anna Mandziak, Juan de la Figuera, Adrian Quesada, Alba Berja, Cecilia Granados-Miralles, Jose Emilio Prieto, Lucia Aballe, Michael Foerster, Miguel Angel Nino, Pawel Nita
Summary: We conducted a spatially resolved X-ray magnetic linear dichroism study on high quality micron-sized mixed nickel-cobalt oxide (NCO) crystals. NixCo1-xO was prepared in-situ by high-temperature oxygen-assisted molecular beam epitaxy on a Ru(0001) single crystal substrate. Three different compositions were prepared to examine the effect of incorporating Ni into the cobalt oxide films. The element-specific XMLD measurements showed strong antiferromagnetic contrast at room temperature, with magnetic domains up to one micron size, indicating the high structural quality of the NCO islands.
Article
Biochemistry & Molecular Biology
Belen Cortes-Llanos, Rossana Rauti, Angel Ayuso-Sacido, Lucas Perez, Laura Ballerini
Summary: This study reveals the impact of nanowire orientation on neuronal and glial cell densities and network activity in mammalian brain cultures. The results demonstrate the potential of manipulating nanowires to modulate cell densities and neuronal activity, which is crucial for designing regenerative interfaces.
Article
Chemistry, Multidisciplinary
Sandra Ruiz-Gomez, Eva Maria Trapero, Claudia Fernandez-Gonzalez, Adolfo del Campo, Cecilia Granados-Miralles, Jose Emilio Prieto, Muhammad Waqas Khaliq, Miguel Angel Nino, Michael Foerster, Lucia Aballe, Juan de la Figuera
Summary: We have grown high-quality magnetite micrometric islandson ruthenium stripes on sapphire through a combination of magnetron sputtering (Ru film), high-temperature molecular beam epitaxy (oxide islands), and optical lithography. The magnetic domains on the magnetite islands can be modified by the application of current pulses through the Ru stripes in combination with magnetic fields.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Physical
Mickella Dawkins, David Saal, Jose F. Marco, James Reynolds, Sandra Dann
Summary: Experiments on the catalytic pyrolysis of methane using an iron ore-based catalyst were conducted to optimize catalytic activity and examine the purity of the carbon produced. The effect of ball milling the iron ore for different times (from 30 to 330 min) at 300 rpm on methane conversion was studied. Optimal milling for 270 min resulted in a significant increase in methane conversion to 5%, but further grinding led to a decline in conversion to 4% due to particle agglomeration.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Valeria Kolesnikova, Irina Baraban, Rafael Perez del Real, Valeria Rodionova, Manuel Vazquez
Summary: A new type of multilayered microwires with a partially covering shell and bimagnetic character has been introduced in this study, showing potential applications in sensing and biomedical tweezers.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
Alvaro Tolosana-Moranchel, Alvaro Garcia, Alvaro Garcia-Corral, Jose F. Marco, L. Pascual, Dalia Liuzzi, Mohamed A. Salam, Pilar Ferrer, Jorge Torrero, David C. Grinter, Georg Held, Daniel Garcia Sanchez, K. Andreas Friedrich, Maria Retuerto, Sergio Rojas
Summary: The overall performance of proton exchange membrane fuel cells is limited by the sluggish kinetics of the oxygen-reduction reaction (ORR). Among the most active PGM-free ORR electrocatalysts are metal-nitrogen-carbon (M-N-C), such as Fe-N-C. In this work, a Fe/N/C catalyst was synthesized via thermal treatment of a polymeric CxNy precursor obtained by the wet-polymerization of melamine (a nitrogen rich molecule) and terephthaldehyde, and it displayed high ORR activity in acid electrolyte compared to other Fe-N-C catalysts.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Alexander J. Mayer, Owain T. Beynon, Andrew J. Logsdail, K. G. Upul Wijayantha, Sandra E. Dann, Jose F. Marco, Joshua D. Elliott, Matteo Aramini, Giannantonio Cibin, Simon A. Kondrat
Summary: In this study, we investigated the speciation of potassium within Prussian blue during cyclic voltammetry using operando potassium K-edge XANES analysis. It was found that potassium ions are located within the channels of the Prussian blue structure but are displaced towards the periphery of the channels by occluded water and/or structural water. These findings demonstrate the potential of XANES to directly study the nature and evolution of potassium species during electrochemical processes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Electrical & Electronic
Luiz G. Enger, Stephane Flament, Imtiaz N. Bhatti, Olivier Rousseau, Bruno Guillet, Marc Lam Chok Sing, Victor Pierron, Sylvain Lebargy, Sandeep K. Chaluvadi, Bernadette Domenges, Arturo Vera, Jose M. Diez, Isidoro Martinez, Ruben Guerrero, Lucas Perez, Maria T. Gonzalez, Rodolfo Miranda, Julio Camarero, Paolo Perna, Laurence Mechin
Summary: The current trend in magnetoresistive sensors development is to increase the sensitivity of single sensing elements by using multilayer structures and to design them into arrays. Here, single layer anisotropic magnetoresistive (AMR) sensors using low noise epitaxial La2/3Sr1/3MnO3 (LSMO) oxide thin films deposited on vicinal SrTiO3 substrates are reported. A good agreement between experimental data and the expected sensor response confirms the correct operation of the device. The study of fabrication parameters and their effects on film anisotropy field and device detectivity are also presented.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
