Article
Chemistry, Multidisciplinary
Lenys Fernandez, Jocelyne Alvarez-Paguay, Gema Gonzalez, Rafael Uribe, Diego Bolanos-Mendez, Jose Luis Pineiros, Luis Celi, Patricio J. Espinoza-Montero
Summary: In this investigation, a hydrogen peroxide (H2O2) electrochemical sensor was evaluated using a modified glassy carbon (GC) electrode. The sensor showed good electrochemical properties and could be tuned by modifying conditions and synthesis method. The coverage of TiO2-ZrO2 nanoparticles on carbon nanotubes significantly affected the immobilization and sensitivity of the electrochemical biosensor. The fabricated sensor exhibited a linear relationship between H2O2 concentration and peak current in whey milk samples.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yanru Xie, Yicun Yao, Dong Zhang, Hefu Li, Qingru Wang, Liqiang Zhang
Summary: The study successfully fabricated a TiO2/PFO heterojunction photodetector, showing a peak photocurrent response of 0.32 mA W-1 at 410 nm with rapid, repeatable, and consistent characteristics. Under weak blue light irradiance, the device exhibited short rise and decay times. This indicates that the TiO2/PFO heterojunction holds promise for developing self-powered blue light photodetectors with high spectral selectivity.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Nanoscience & Nanotechnology
Yu Zhao, Ran Lu, Xin Wang, Xiaochen Huai, Caiyun Wang, Yuji Wang, Su Chen
Summary: The study successfully fabricated the H-TNTs/f-Ti composite with enhanced visible light-induced photoelectric response and more hydroxyl functional groups, which can improve the biocompatibility of dental implants and inhibit bacterial growth effectively.
Article
Chemistry, Physical
Miao Xu, Kang Li, Shen Wang, Shengyu Zhou, Hulin Zhang, Hongbo Xu, Jiupeng Zhao, Yao Li
Summary: A TiO2/Au/PB nanorod array is designed to enhance the stability and electrochromic performance of Prussian blue, showing potential for electrochromic applications.
Article
Chemistry, Physical
Miao Xu, Kang Li, Shen Wang, Shengyu Zhou, Hulin Zhang, Hongbo Xu, Jiupeng Zhao, Yao Li
Summary: By designing a TiO2/Au/PB nanorod array, the stability and switching speed of Prussian blue in electrochromic applications can be improved. The designed structure increases reactive sites and conductivity, enhances ion storage capacity, and promotes charge transfer through localized surface plasmon resonance effect.
Article
Chemistry, Physical
Ke Pei
Summary: In this work, a two-dimensional CuInP2S6 crystal is integrated into Fe-OFETs, which exhibit excellent ferroelectric performance and high programming speed. The flexible devices also show promising performance for short-term data storage and integration with other flexible electronics.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Zhiqian Yao, Feng Liu, Suqiong Xu, Xianke Zhang, Chuicai Rong, Zuzhou Xiong, Jujun Yuan, Yi Yu, Xiurong Zhu, Huajun Yu
Summary: This paper investigates the performance of La2O3/Co@NCNTs composites in electromagnetic wave absorption. The results show that the composites exhibit very low reflection loss and high effective absorption bandwidth at a certain thickness, which can be attributed to the contribution of multiple loss mechanisms.
Article
Chemistry, Multidisciplinary
Marwa S. Salem, Ahmed R. Wassel, M. Fedawy, A. Shaker, Amal H. Al-Bagawia, Ghada Mohamed Aleid, Ahmed M. El-Mahalawy
Summary: This study systematically investigated the structural, morphological, and optical properties of solution-processed coomassie brilliant blue (CBB) thin films for photodetection applications, revealing promising performance and stability. The fabricated heterojunction showed good figures of merit and stable response behavior, making it a potential candidate for photodetection applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Ao Gong, Yubo Zhao, Bolong Liang, Kexun Li
Summary: The dual strategy of surface etching to form stepwise hollow structure and introducing carbon-based materials can enhance the desalination performance of Prussian blue and its analogues. This design increases the specific surface area, contact area with the electrolyte, exposes more active sites, while improving the stability against crystal phase transitions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Guang Feng, Mengyun Hu, Shuai Yuan, Junyi Nan, Heping Zeng
Summary: This study successfully prepared hydrogenated amorphous TiO2-x with high visible-light photocatalytic activity using a unique liquid plasma hydrogenation strategy. Through density functional theory analysis, it was found that the narrower the bandgap of HA-TiO2-x, the higher the photocatalytic efficiency exhibited. Additionally, the HA-TiO2-x showed excellent visible-light photodegradation in various pollutants and high wastewater purification performance.
Article
Chemistry, Multidisciplinary
Miao Xu, Shen Wang, Shengyu Zhou, Zhenmin Ding, Hongbo Xu, Jiupeng Zhao, Yao Li
Summary: In this study, Pt/Au and Au/PB films were prepared by electrodeposition to improve the electrochromic properties of PB. The introduction of Au and Pt nanoparticles enhanced conductivity, inhibited polarization, increased contact area, and alleviated stress and strain. The Au/PB film showed ultrastable cyclic stability, fast switching time, low charge transfer resistance, and high coloration efficiency.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Li Li Wu, Xiao Hui Chen, Qing Zhang, Juan Luo, Hong Chuan Fu, Li Shen, Hong Qun Luo, Nian Bing Li
Summary: A series of NiFe Prussian blue analogues/Prussian blue nanocubes were synthesized on nickel foam using a one-pot redox reaction and deposition strategy. By adjusting reaction conditions, the growth and particle size of these materials can be controlled, with the Ni0.59Fe-PB-3-110 catalyst showing exceptional catalytic activity in the electrolyte solution.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Hongli Liu, Bo Gao, Wenjin Yuan, Hongyan Li, Jing Li, Yajing Li, Bo Zhang, Zhong Chen
Summary: Titania nanotubes with high length-diameter ratio are incorporated into reduced graphene oxide aerogel to modify the porous structure for efficient methylene blue adsorption. The composite aerogel shows favorable adsorption properties with a high specific surface area, and the adsorption process is influenced by the adsorbent dosage.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Electrochemistry
Jiangshan Gao, Yang Zhou, Zhiming Liu, Huanhuan Wang, Yan He
Summary: This study successfully synthesized N-doped carbon nanotubes encapsulating NiCo-Se nanoparticles assembled into spheres, demonstrating the structural evolution and electrochemical performance. The advantage superposition of high length-diameter ratio of CNTs and NiCo-Se NPs provides excellent capabilities for charge transfer and diffusion efficiency in NCNTs/NiCo-Se.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Environmental
Younggyo Seo, Yuhoon Hwang
Summary: Prussian blue (PB) immobilized on granular activated carbon (GAC) through covalent organic polymer (COP) grafting showed excellent stability, high cesium adsorption capacity, and potential for application in water treatment systems. The method proved effective in both artificial and actual river water samples, as well as in continuous column experiments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Anna Ilnicka, Malgorzata Skorupska, Mariusz Szkoda, Zuzanna Zarach, Jerzy P. Lukaszewicz
Summary: This article presents a strategy of using nitrogen-doped carbon materials as electrodes for supercapacitors. By controlling the carbon precursor, a porous structure with high specific surface area is achieved, resulting in high capacitance and cycle durability. The study demonstrates that highly porous carbons show promising potential for supercapacitors.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Z. Zarach, A. P. Nowak, K. Trzcinski, G. Gajowiec, G. Trykowski, M. Sawczak, M. Lapinski, M. Szkoda
Summary: Nitrogen-doped molybdenum sulfide was deposited on titanium dioxide nanotubes substrate during hydrothermal synthesis. The concentration of hydrochloric acid used for the synthesis plays an essential role in thioacetamide hydrolysis and the effectiveness of N-MoS2 deposition. The addition of aniline and ammonium persulfate improves the crystallinity and overall electrochemical performance of the electrode material.
APPLIED SURFACE SCIENCE
(2023)
Article
Environmental Sciences
Malgorzata Szopiska, Jacek Ryl, Mattia Pierpaoli
Summary: In this study, the use of electrochemical oxidation with upcycled secondary waste materials (SWMs) as electrodes was demonstrated as a safer and cleaner technology to minimize the impact of pharmaceuticals in wastewaters. The design of tailored multifunctional electrode materials, derived from combustion and industrial processes, addresses the energy efficiency and potential release of toxic by-products issues. The results show that SWMs can substitute costly engineered fillers and the tailored fibrous composite electrodes have low energy consumption and absence of reaction by-products, making them good candidates for safer and cleaner technologies.
Article
Chemistry, Physical
Krystian Lankauf, Karolina Gornicka, Patryk Blaszczak, Jakub Karczewski, Jacek Ryl, Grzegorz Cempura, Marcin Zajac, Maciej Bik, Maciej Sitarz, Piotr Jasinski, Sebastian Molin
Summary: In this study, a series of MnCo2-xFexO(4) powders were synthesized by the sol-gel method to investigate the effect of partial Fe substitution on the physicochemical and electrochemical properties of MnCo2O4 spinel. The synthesized powders were characterized using various techniques. The findings revealed that the electrocatalytic activity towards oxygen evolution reaction (OER) was enhanced when Fe was partially substituted for Co, with the highest activity observed at x = 0.5. This indicates that tuning the eg occupancy at the octahedral sites through Fe substitution can modulate the catalytic activity of OER.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Mateusz Cieslik, Agata Rodak, Agnieszka Susik, Natalia Wojcik, Michal Szocinski, Jacek Ryl, Krzysztof Formela
Summary: This study investigated the multiple reprocessing of a commercially available PLA conductive composite with carbon black filler for 3D printing. The effects of extrusion temperature and reprocessing steps on the rheology, morphology, thermal, and electrochemical properties of the conductive PLA 3D-printing filament were evaluated. The results showed deterioration in thermal stability and material strength, as well as an increase in melting point after initial melting. The conduction mechanism and reversibility of the redox process were also affected by the multiple processing. Furthermore, the material fluidity was too high after multiple reprocessing, which should be considered for proper application as a 3D-printed electrode material.
Article
Chemistry, Physical
Lukasz Harynski, Dariusz Czylkowski, Bartosz Hrycak, Jakub Karczewski, Justyna Gumieniak, Agnieszka Kramek, Jacek Ryl, Katarzyna Grochowska, Miroslaw Dors, Katarzyna Siuzdak
Summary: Anodic TiO2 nanotubes have potential for large-scale production due to their high specific surface area and easy growth. In this study, a fast 30-second nitrogen plasma-induced crystallization method was proposed for TiO2 nanotubes. The method showed comparable photoresponse to furnace annealed TiO2 nanotubes without significant changes in their ordered morphology. This method demonstrates promise for reproducible and stable fabrication of photoanodes and could contribute to wider applications of plasma for phase transitions in functional materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Adrian Olejnik, Karol Olbrysi, Jakub Karczewski, Jacek Ryl, Robert Bogdanowicz, Katarzyna Siuzdak
Summary: In this work, the electropolymerization of quinone-rich polydopamine (PDA) on hydrogenated TiO2 nanotubes is described, resulting in improved photoactivity in the visible spectrum. The deposition of PDA is uniform on the nanotube walls and its chemical structure depends on the pH of the supporting electrolyte. The modification of the nanotubes leads to a 20-fold increase in photocurrent response and improvement in quantum efficiency at specific wavelengths.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Biochemistry & Molecular Biology
Haseebul Hassan, Muhammad Waqas Iqbal, Sarah Alharthi, Mohammed A. Amin, Amir Muhammad Afzal, Jacek Ryl, Mohd Zahid Ansari
Summary: In this study, the effect of introducing ester co-solvents into ethylene carbonate (EC) as an electrolyte for supercapacitors was investigated. The use of ester co-solvents improved conductivity, electrochemical properties, and stability, leading to enhanced energy storage capacity and durability. A novel electrode material, Mg(NbAgS)(x)(SO4)(y), was synthesized and deposited on a nickel foam substrate, demonstrating high specific capacity and energy density in combination with activated carbon (AC). The supercapattery showed promising performance after 15,000 consecutive cycles, with a Coulombic efficiency of 81% and capacity retention of 78%. The results highlight the potential of using this electrode material in ester-based electrolytes for supercapattery applications.
Article
Multidisciplinary Sciences
M. Nadolska, M. Szkoda, K. Trzcinski, J. Ryl, A. Lewkowicz, K. Sadowska, J. Smalc-Koziorowska, M. Przesniak-Welenc
Summary: Solar-driven photocatalysis using clean solar energy has great potential as a sustainable wastewater treatment technology. This study focuses on the development of NH4V4O10 (NVO) and its composite with rGO (NVO/rGO) as efficient and low-cost photocatalysts. The results show that the NVO and NVO/rGO photocatalysts have strong visible light absorption, high V4+ surface species, and a well-developed surface area, leading to excellent performance in methylene blue photodegradation. The NVO/rGO composite also shows promising results in the photoreduction of inorganic pollutants like Cr(VI).
SCIENTIFIC REPORTS
(2023)
Article
Biochemical Research Methods
Natalia Musial, Aleksandra Bogucka, Dmitry Tretiakow, Andrzej Skorek, Jacek Ryl, Paulina Czaplewska
Summary: Salivary stones, also known as sialoliths, are formed in pathological conditions in the salivary glands. The composition of sialoliths and the proteins associated with their formation have been studied using mass spectrometry and SWATH-MS analysis. Different types of sialoliths were found to contain unique proteins, and bacterial proteins were also identified. The results suggest that bacterial infections, disturbances in calcium metabolism, and neutrophil extracellular traps (NETs) may play a role in the formation of sialoliths.
CLINICAL PROTEOMICS
(2023)
Article
Nanoscience & Nanotechnology
Adrian Olejnik, Krzysztof Polaczek, Marek Szkodo, Alicja Stanislawska, Jacek Ryl, Katarzyna Siuzdak
Summary: This study focuses on using laser-induced graphite/graphene to achieve graphitization of polydopamine and improve electrochemical activity and photocurrent generation. The proposed composite is applied as a photoelectrochemical sensor and exhibits significantly enhanced sensing performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
M. Szkoda, A. Ilnicka, Z. Zarach, D. Roda, A. P. Nowak, K. Trzcinski
Summary: The Ti-Fe2O3/In2O3 layers were prepared on different substrates using hydrothermal method and characterized using various techniques. The photoanodes were tested for water oxidation and it was found that the presence of TiO2 nanotubes as a substrate significantly increased the photocurrent generation efficiency. This work highlights the potential of TiO2 nanotubes for improving the performance of photoanodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Mateusz Cieslik, Agnieszka Susik, Mariusz Banasiak, Robert Bogdanowicz, Krzysztof Formela, Jacek Ryl
Summary: A new 3D-printable composite has been developed for electroanalytical applications, incorporating diamondised nanocarbons as fillers in PLA-based composites. The addition of these fillers significantly improved the electrocatalytic properties of the composite-based electrodes, leading to enhanced redox process kinetics and lower limits of detection for dopamine compared to carbon black-loaded PLA electrodes.
Article
Chemistry, Multidisciplinary
Malgorzata Skorupska, Kinga Kowalska, Magdalena Tyc, Anna Ilnicka, Mariusz Szkoda, Jerzy P. Lukaszewicz
Summary: The aim of this research was to develop hybrid nanostructures formed from MnCo2O4 and exfoliated graphite. Carbon added during synthesis allowed for a well-distributed MnCo2O4 particle size with exposed active sites, contributing to increased electrical conductivity. The influence of the weight ratios of carbon to catalyst on hydrogen and oxygen evolution reactions was investigated. The new bifunctional catalysts for water splitting exhibited excellent electrochemical performance and good working stability in an alkaline medium. The hybrid samples showed better electrochemical performance compared to pure MnCo2O4, with the highest electrocatalytic activity observed for the MnCo2O4/EG (2/1) sample.
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
