Article
Engineering, Chemical
Nuno Bimbo, Joseph P. Smith, Himanshu Aggarwal, Andrew J. Physick, Adam Pugsley, Leonard J. Barbour, Valeska P. Ting, Timothy J. Mays
Summary: This study examines the adsorption kinetics and enthalpies of methane in various materials, analyzing diffusion coefficients and activation energies. Additionally, comparisons are made between different calculation methods for enthalpies under varying conditions, highlighting the need for precise measurement and calculation techniques.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Review
Biochemistry & Molecular Biology
Minmin Zou, Ming Dong, Tian Zhao
Summary: This review provides an overview of the latest synthesis methods of MIL-101(Cr) and its research progress in adsorption and catalysis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
Jianghui Liu, Haishan Cao, Yixiang Shi, Peixue Jiang
Summary: This study investigated the adsorption isotherms and kinetics of methane in MIL-101(Cr) under different temperatures and pressures, finding that the delivery amount of methane can be enhanced by changing the charging and discharging temperatures. Additionally, it revealed that the adsorption rate of methane in MIL-101(Cr) is controlled by the diffusion process.
Article
Energy & Fuels
Busuyi O. Adebayo, Anirudh Krishnamurthy, Qasim Al-Naddaf, Ali A. Rownaghi, Fateme Rezaei
Summary: The study demonstrates the efficacy of metal/metal oxide-MOF composites as dual function materials for the efficient capture and destruction of VOCs from ultradilute streams.
Article
Engineering, Environmental
Faraz Ege, Darshan G. Pahinkar
Summary: A new wash-coating technique was developed to coat a porous layer of MIL-101 (Cr) adsorbent on fused silica microchannels. The optimized adsorbent slurry was prepared using ethanol solvent, silica binder, and MIL-101 (Cr) and inserted into the microchannels. The coatings were characterized using SEM and water adsorption isotherms.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xiaoxiao Xia, Boyun Liu, Bo Zhao, Zichao Xia, Song Li
Summary: This study reports an effective approach to enhance the water adsorption rate and cooling performance of MOF-water working pairs by encapsulating hydrophilic MOP into MIL-101(Cr).
Article
Chemistry, Physical
Jiao Gao, Shubo Fei, Ya-Lun Ho, Ryotaro Matsuda, Hirofumi Daiguji, Jean-Jacques Delaunay
Summary: The study investigated the phase transitions of water confined in MIL-101(Cr) using combined infrared molecular adsorption and molecular dynamics simulation. It revealed the adsorption-desorption behavior of water at different pressures, as well as the formation of a water monolayer on the inner surface of MIL-101(Cr). This systematic analysis provides insights for the further development of superior materials for sorption-based heat exchangers.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Yuning Jin, Xichen Mi, Jianglu Qian, Na Ma, Wei Dai
Summary: This paper reports a novel iron-based metal-organic framework (MOF) photocatalyst that combines different building blocks to enhance the capture and degradation of antibiotics. The MIL-101(Fe)@MIL-100(Fe) photocatalyst exhibits excellent photocatalytic activity for tetracycline degradation, surpassing previous reported results. Additionally, it shows remarkable stability, maintaining high photocatalytic activity after multiple cycles.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Zhiguo Sun, Menglu Wang, Jiaming Fan, Run Feng, Yue Zhou, Li Zhang
Summary: A nanocomposite photocatalyst of TiO2@MIL-101(Cr) was efficiently synthesized by hydrothermal method, showing higher degradation efficiency of toluene compared to other catalysts. The successful synthesis of the composite increased the specific surface area and improved the photocatalytic performance.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Applied
Oana Grad, Maria Mihet, Gabriela Blanita, Monica Dan, Lucian Barbu-Tudoran, Mihaela D. Lazar
Summary: A novel Ni(10 wt.)/MIL-101-Al2O3 catalyst was prepared by immobilizing MIL-101 on alumina pellets, showing superior catalytic performance in the methanation of CO2 compared to its homologues.
Article
Engineering, Chemical
Shaowen Zhang, Yilong Lin, Qing Li, Xiaoqi Jiang, Zhiwei Huang, Xiaomin Wu, Huawang Zhao, Guohua Jing, Huazhen Shen
Summary: This study presents a simple strategy of carbonization and nitrogen doping to modify MIL-101 and enhance its adsorption capacity for benzene. Both experimental and theoretical results demonstrate that N-containing functional groups have a strong interaction with benzene, with pyridinic-N showing the strongest adsorption capacity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Gege Zhang, Yueguang Fang, Yudan Wang, Lijia Liu, Douchao Mei, Fuqiu Ma, Yujiang Meng, Hongxing Dong, Chunhong Zhang
Summary: Three novel uranium adsorbents were synthesized by modifying MIL-101 with three amino acids: glycine, histidine, and cysteine. Among them, the histidine modified MIL-101 showed the best uranium adsorption performance, including capacity, selectivity, and recyclability. The uranium (VI) removal rate of the histidine modified MIL-101 reached 74% in the presence of various ions, indicating excellent selectivity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Luqman Hakim Mohd Azmi, Pavani Cherukupally, Elwin Hunter-Sellars, P. Bradley Ladewig, R. Daryl Williams
Summary: Competition for adsorption sites between atmospheric moisture and volatile organic compounds can significantly impact the VOC removal performance of metal-organic framework adsorbents like MIL-101. In this study, a vapor phase deposition of polydimethylsiloxane (PDMS) was used to create more hydrophobic MIL-101 composites, resulting in enhanced internal hydrophobicity and intact porosity. The MIL-101-PDMS composite showed superior performance in capturing toluene, exhibiting higher adsorption capacity and overall capture rate compared to pristine MIL-101, and maintaining excellent structural stability and adsorption performance after multiple sorption/desorption cycles.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Alan A. Rico-Barragan, J. Raziel Alvarez, Sandra Pioquinto-Garcia, Joelis Rodriguez-Hernandez, Pasiano Rivas-Garcia, Nancy E. Davila-Guzman
Summary: This study aims to achieve a cleaner production of MIL-101(Cr) by considering environmental, technical, and economic criteria. The optimized synthesis process resulted in MIL-101(Cr) with good textural properties, suitable for toluene capture at low concentrations. Environmental analysis showed significant impacts in Climate Change, Fossil Depletion, and Particulate Matter categories. The cleaner MIL-101(Cr) synthesis presented 64% minor environmental impact and is 34% more economical than a conventional MOF synthesis. Overall, this research is a step toward comprehensive synthesis of MOFs for adsorption applications.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
Article
Chemistry, Applied
Yiyang Zeng, Yuran Ni, Sheng Liu, Jichen Xu, Ai Zhang, Yuxin Song, Long Yang, Ailin Pu, Xiaoyu Li, Lina Lv, Li Yuanli, Fangting Chi
Summary: This study proposes a strategy to enhance uranium adsorption performance by using mesoporous-confined short chain poly-amidoxime. The optimized material achieves impressive adsorption capacity and removal rate for uranium, outperforming other MOF-based uranium adsorbents. Pore analysis and XPS results reveal the importance of the active sites in the confined poly-amidoxime for uranium coordination. This research provides new insights for the rational design of efficient uranium enrichment and separation materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Ceramics
Muhammad Ishfaq, Tehmina Kousar, Mehtab Hussain, Hamoud Somaily, Sidra Mubeen, Erich Potrich, Nadia Masaya Panduro-Tenazoa, Mohamed Abdel Salam, Syeda Rabia Ejaz, Muhammad Aadil
Summary: Material scientists are employing photocatalytic materials to detoxify waste and combat water pollution. Narrow-bandgap materials, like binary metal-doped cerium oxide, are valuable for their visible light-harvesting properties. The CZC-2 photocatalyst showed superior dye degradation activity and maintained high catalytic efficiency even after multiple reuse cycles, highlighting its potential for practical environmental cleanup.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Muhammad Aadil, Tehmina Kousar, Mehtab Hussain, H. H. Somaily, Aliaa Kareem Abdulla, Eman Ramzy Muhammad, Eman A. Al-Abbad, Mohamed Abdel Salam, Soha M. Albukhari, Doaa F. Baamer, Mohd Zahid Ansari
Summary: In this research, a mesoporous rod-shaped ZnO/CuO/CeO2 n-p-n heterojunction with a preferred interface between ZnO, CuO, and CeO2 phases was designed for photocatalytic applications. The heterojunction extended the light-absorption window up to 800 nm. Under sunlight, the photocatalytic efficiency of the mesoporous ZnO/CuO/CeO2 heterojunction was tested with methyl orange (MO) and crystal violet (CV) as target molecules, resulting in degradation efficiencies of 88% and 96% respectively, after 90 min of sunlight irradiation. The outstanding photocatalytic properties were attributed to the photo-response, band-structure, and photo-induced carriers of the mesoporous photocatalyst.
CERAMICS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Reham O. Aljedaani, Samia A. Kosa, Mohamed Abdel Salam
Summary: In this research, ecofriendly green copper (II) oxide nanoparticles were prepared using corchorus olitorus leaves extract as a surfactant, capping, and anti-agglomeration agent. The CuO NPs were characterized and found to have a monoclinic tenorite structure with small particle size and high surface area. The NPs were used for the efficient catalytic degradation of direct violet dye in environmental remediation, and their catalytic degradation process was found to be kinetically controlled and thermodynamically favorable. The NPs also showed high catalytic degradation efficiency in real water samples.
Article
Biochemistry & Molecular Biology
Halilibrahim Ciftci, Belgin Sever, Nusret Kaya, Niluefer Bayrak, Mahmut Yildiz, Hatice Yildirim, Hiroshi Tateishi, Masami Otsuka, Mikako Fujita, Amac Fatih TuYuN
Summary: Colorectal cancer (CRC), breast cancer, and chronic myeloid leukemia (CML) are major global health problems. Quinone-based compounds have shown potential as anti-CML agents. In this study, ABQ-3 exhibited significant growth inhibition against CRC and breast cancer cells, and induced apoptosis in both cell lines. Molecular docking studies indicated that ABQ-3 exhibited DNA binding similar to previously reported compounds.
Article
Materials Science, Multidisciplinary
Muhammad Rashid, Warda Hassan, Muhammad Aadil, H. H. Somaily, Noor Mahmood Mahdi, Rahiam Lataef, Anmar Ghanim Taki, Khaysy Srithilat, Doaa F. Baamer, Soha M. Albukhari, Mohamed Abdel Salam, Asif Llyas
Summary: Semi-conductive photocatalysts are highly efficient and cost-effective for water treatment applications. Material scientists are working on developing nanostructured Mn-doped cobalt ferrite as a magnetically recyclable photocatalytic material that is active in visible light and has high conductivity. The study investigates the crystal structure, chemical composition, functionality, and morphology of the prepared ferrite samples, as well as their thermal stability, electrical conductivity, light-harvesting capability, charge transport performance, and charge separation efficiency.
Article
Chemistry, Physical
Asma D. D. Alomari, Dalal Alezi, Mohamed Abdel Salam
Summary: A terbium-based metal-organic framework (Tb-FTZB-MOF) with high surface area was successfully synthesized and characterized. It was found to effectively remove direct violet 31 dye from both model and real solutions, with optimal conditions being ambient temperature, pH value of 8.0, and a dosage of 35 mg Tb-FTZB-MOF.
Editorial Material
Chemistry, Multidisciplinary
Antony C. Calokerinos, Mustafa Bener, Charalampos Proestos, Petros Tarantilis
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Ceramics
Muhammad Sabir, Najla AlMasoud, Muhammad Ramzan, Muhammad Aamir, Syeda Rabia Ejaz, Taghrid S. Alomar, Zeinhom M. El-Bahy, Mohamed Abdel Salam, Soha M. Albukhari, Doaa F. Baamer
Summary: In this study, rare earth (Gd) and transition metal (Co) co-doped LaFeO3 perovskite and its carbon nanotube (CNT) reinforced nanohybrid were prepared via a wet-chemical and post-ultrasonication method. The doped and reinforced materials were characterized using various physical and electronic techniques, and their effects on morphology, surface area, conductivity, and band structure were investigated. The resulting LGFCO@C catalyst exhibited excellent catalytic capabilities for the mineralization of anionic dye phenol red (PR), attributed to its hybrid composition, optimal band gap, large surface area, and high electronic conductivity. The incorporation of CNTs significantly improved light harvesting and catalytic activity. The stability and reusability of the LGFCO@C catalyst were also evaluated, showing only a minor decrease in activity after multiple reuse cycles. The study suggests that integrating multiple features into a single catalyst holds promise for advancing photocatalysis.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mohamed Mokhtar M. Mostafa, Ahmed Shawky, Sharif Fakhruz Zaman, Katabathini Narasimharao, Mohamed Abdel Salam, Abdulmohsen A. Alshehri, Nezar H. Khdary, Sulaiman Al-Faifi, Abhishek Dutta Chowdhury
Summary: Photocatalytic conversion of carbon dioxide (CO2) into methanol (CH3OH) using PdO/GdFeO3 nanocomposites as photocatalysts was investigated. The inclusion of PdO into GdFeO3 enhanced the visible-light absorption and reduced the overall bandgap. The optimized PdO dosage of 1.5% resulted in significantly improved CH3OH production and sustainable recyclability.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Mahmut Yildiz, Hatice Yildirim, Nilufer Bayrak, Selin Melis Cakmak, Emel Mataraci-Kara, Berna Ozbek-Celik, Masami Otsuka, Mikako Fujita, Mohamed O. Radwan, Amac Fatih TuYuN
Summary: The urgent need for the design and development of novel antibacterial and/or antifungal compounds to combat the increasing antimicrobial resistance is emphasized. New Plastoquinone analogs (PQ1-12) containing piperidine moiety were designed and synthesized through a one-pot reaction. Spectroscopic methods were used to determine the chemical structures of the PQ analogs. The antimicrobial activity of the PQ analogs against bacterial and fungal strains was investigated, showing significant antibacterial activity and weak to moderate antifungal activity. In silico studies indicated strong interactions of PQ2 with fungal CYP51 and PQ7 with S. aureus DNA gyrase, while both compounds exhibited favorable physicochemical and pharmacokinetic properties.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Saeed Saad Alelyani, Yasar N. Kavil, Radwan Kh Al-Farawati, Mousa Zobidi, Mohamed Abdel Salam, Yasser A. Shaban
Summary: The addition of multi-walled carbon nanotubes (MWCNT) to TiO2 altered its properties, enhancing the photoactivity for reducing Cr (VI) in water. The photocatalyst was synthesized and characterized, showing improved efficiency compared to bare TiO2. The optimized conditions achieved the highest removal efficiency of Cr (VI) to Cr (III) within 90 minutes of natural sunlight illumination.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Multidisciplinary Sciences
Dmitry Galyamin, Jorge Torrero, Isabel Rodriguez, Manuel J. Kolb, Pilar Ferrer, Laura Pascual, Mohamed Abdel Salam, Diego Gianolio, Veronica Celorrio, Mohamed Mokhtar, Daniel Garcia Sanchez, Aldo Saul Gago, Kaspar Andreas Friedrich, Miguel A. Pena, Jose Antonio Alonso, Federico Calle-Vallejo, Maria Retuerto, Sergio Rojas
Summary: The study finds that low-ruthenium-content pyrochlores (R2MnRuO7, R = Y, Tb, and Dy) exhibit high activity and durability for the oxygen evolution reaction (OER) in acidic media. Among them, Y2MnRuO7 is the most stable catalyst, showing a voltage of 1.5 V at 10 mA cm(-2) for 40 h, or 5000 cycles up to 1.7 V. Experimental and computational results indicate that the excellent performance is attributed to the Ru sites embedded in RuMnOx surface layers. A water electrolyzer with Y2MnRuO7 and only 0.2 mgRu cm(-2) achieves a current density of 1 A cm(-2) at 1.75 V, remaining stable at 200 mA cm(-2) for over 24 h. These findings suggest further investigation on Ru catalysts with the goal of enhancing OER performance through a partial replacement of Ru with inexpensive cations. Ru-pyrochlores can serve as alternative anodes of PEM water electrolyzers, and their high performance is attributed to the Ru sites embedded in RuMnOx surface layers. The durability of a water electrolyzer with Y2MnRuO7 and only 0.2 mgRu cm(-2) has been successfully demonstrated.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Naif S. Aljohani, Yasar N. Kavil, Radwan K. Al-Farawati, Saeed Saad Alelyani, Mohammed Orif, Yasser A. Shaban, Saedah R. Al-Mhyawi, Enas H. Aljuhani, Mohamed Abdel Salam
Summary: The study used modified Halloysite nanoclay to enhance the adsorption efficacy of heavy metals from water, focusing on As (III) adsorption. The experimental conditions were optimized with a dosage of 1 g/L, contact time of 90 min, pH 8, and an initial concentration of 5 ppm As (III). The physical characteristics of the modified Halloysite nanoclay were investigated, and the adsorption efficiency of As (III) reached 82.4% under the optimized conditions. Kinetic study revealed that the removal process of As (III) followed pseudo-second order kinetics.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Mohamed Abdel Salam, Eman Saleem Imdadulhaq, Abeer Nasser Al-Romaizan, Tamer S. Saleh, Mohamed Mokhtar M. Mostafa
Summary: Ultrasound-assisted synthesis of novel pyrazoles using Ni-Mg-Fe LDH as a catalyst in cyclopentyl methyl ether (CPME) is described. Different LDHs were evaluated for their catalytic activity in the synthesis of pyrazoles via 1,3-dipolar cycloaddition reaction, with Ni-Mg-Fe LDH proving to be the most effective catalyst. The protocol offered high yields, short reaction time, and a green solvent, and the catalyst could be reused six times without significant loss of activity, demonstrating its eco-friendly and sustainable nature. A plausible mechanism for the reaction over the Ni-Mg-Fe LDH catalyst is proposed.
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
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)
