Article
Chemistry, Multidisciplinary
Fushuo Wu, Zhihua Tian, Peiying Hu, Jingwen Tang, Xueqin Xu, Long Pan, Jian Liu, Peigen Zhang, ZhengMing Sun
Summary: This study successfully prepared polyacrylonitrile (PAN) nanofiber films with excellent electromagnetic interference (EMI) shielding and Joule heating performances. By coating the films with polypyrrole (PPy) and MXene nanosheets, the EMI shielding effectiveness and Joule heating ability of the films were significantly enhanced, showing potential applications in smart and wearable devices.
Article
Electrochemistry
Elmira Payami, Reza Teimuri-Mofrad
Summary: This study introduced a novel ternary electrode material for battery-type super-capacitor applications, which exhibited excellent electrochemical performances and was adopted for symmetric two-electrode system fabrication. The high performance electrode material was designed and synthesized via simple processes and appropriate structural analyses.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Applied
Shakiba Dadkhah, Ali Gharieh, Mohsen Khosravi
Summary: This study presents a novel method to create a UV-curable nanocomposite coating with exceptional corrosion resistance. Modified graphene oxide was introduced to improve the dispersion and interaction with the resin matrix. The addition of a suitable amount of graphene oxide resulted in a significant reduction in film porosity, improved resistance to ionic current and charge transfer. However, excessive loading of graphene oxide could potentially harm the corrosion resistance properties of the coating.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Materials Science, Multidisciplinary
A. Tayebi Pak, S. M. Masoudpanah, M. Adeli, M. Jazirehpour
Summary: The Fe3O4/RGO composite powders prepared by different fuels, glycine and urea, showed differences in structure, magnetic properties, and microwave absorption performance. The urea fuel synthesis resulted in higher saturation magnetization, while the glycine fuel synthesis of pristine Fe3O4 powders had higher absorption properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Electrical & Electronic
Weixing Min, Dongxuan Liu, Ping Chen, Xiaoyu Zhu, Hongfang Qiu
Summary: The novel nickel-ion-polydopamine complex coating strategy helps to avoid the negative effect of agglomeration of magnetic nanoparticles on microwave absorption performance. The HNC(sic)Ni composites with different amounts of nickel ions exhibit improved thermal stability, maintained original shape, and enhanced degree of graphitization, leading to better microwave absorption performance. The composites with only 10 wt.% filler loading possess the broadest effective absorption bandwidth and minimum reflection loss, making them potential for advanced microwave absorption absorbers.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Laura Fekete, Akos Ferenc Fazekas, Cecilia Hodur, Zsuzsanna Laszlo, Aron Agoston, Laszlo Janovak, Tamas Gyulavari, Zsolt Pap, Klara Hernadi, Gabor Vereb
Summary: Membrane filtration is an effective technique for separating micro- and nano-sized oil droplets from oil-contaminated waters. The flux reduction is a challenge for its extensive application, thus the development of antifouling membranes is necessary. The modification of PVDF membranes with TiO2/CNT nanocomposites (2% CNT) showed the highest reduction in filtration resistance and the highest fluxes compared to unmodified membranes, resulting in improved flux recovery ratio and purification efficiency.
Article
Materials Science, Composites
Mengfei Feng, Kaifu Zhang, Hui Cheng, Yuan Li, Bo Liu, Biao Liang
Summary: This study designs and fabricates a bioinspired nanocomposite material inspired by the special microstructures of papilio palinurus's wing and beetle's elytra. The synthesized nanocomposites exhibit excellent broadband microwave absorption and good mechanical properties. The optimized bioinspired nanocomposite metamaterial possesses a 31.7 GHz effective absorption bandwidth, -47 dB minimum reflection loss, and a thickness of only 6 mm, with a compressive strength of 33.78 MPa. This research provides an efficient way for designing new materials with excellent broadband microwave absorption performance and good mechanical properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Sinan Zheng, Zhihui Zeng, Jing Qiao, Yue Liu, Jiurong Liu
Summary: In this study, C/MnO/Co nanocomposite fibers were prepared using a simple electrospinning and carbonization process. The nanocomposites exhibited excellent microwave absorption performance and a rough surface morphology.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Jinhu Hu, Zhengguo Jiao, Xukang Han, Jiao Liu, Mingliang Ma, Jialin Jiang, Yongbo Hou, Xingyue Wang, Chao Feng, Yong Ma
Summary: In this study, FeNi/C nanofibers were prepared by combining the advantages of Fe, Ni metals and one-dimensional carbon materials for electromagnetic microwave absorption. The FeNi/C nanofibers exhibited excellent absorption performance under dielectric/magnetic synergistic effect. The unique microstructure and electromagnetic properties of FeNi/C nanofibers contributed to its superior absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Jinchuan Zhao, Guilong Wang, Zuolong Chen, Yifeng Huang, Chongda Wang, Aimin Zhang, Chul B. Park
Summary: This study presents a novel strategy to prepare lightweight, oleophilic, and sound-insulating PP/PTFE composite foams using microcellular injection molding and in-situ fibrillation technologies. The unique nano-scale structures and high open-cell content significantly enhance oil absorption capacity and sound insulation performance of the foam.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Song Zhao, Mohamad Reda A. Refaai, Sadeq Salman, Majid Niaz Akhtar, Kang Du
Summary: The study proposes a method of optimizing the structure and absorber thickness, and increases the absorption performance of the NiCo2S4/AgBr nanocomposite by modifying the filler loading in the composite matrix. The results show that the thinnest layer with a thickness of 1.4 mm has a minimum reflection loss of -24 dB at 9.7 GHz, and the absorption bandwidth is 3.8 GHz. The measurement of electromagnetic radiation patterns demonstrates strong high-frequency absorption responses at 10.9 GHz and 11.4 GHz for samples with 25 wt.% and 35 wt.% filler loading. The key factors in improving the reflection loss and absorption efficiency are excellent conductive response, better matching properties, and electromagnetic losses.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Jingru Di, Yuping Duan, Huifang Pang, Hanxiao Jia, Xiaoji Liu
Summary: It has been found that the uniform and compact magnetic metal nanolayers on a dielectric substrate can improve electromagnetic absorption. In this study, basalt/Ni microflakes with uniform Ni nanolayers were prepared and shown to significantly enhance electromagnetic attenuation. The uniform Ni nanolayers facilitate the construction of a conductive net and electron migration, and also promote multiple scattering absorption and interfacial polarization. This research highlights the importance of uniform magnetic metal nanolayers in achieving high-performance microwave absorption.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Sevgi Sozugecer, Nursel Pekel Bayramgil
Summary: Polyacrylic acid and its composite with nano HAp were successfully synthesized by microwave irradiation in this study, with a yield over 92% achieved in 30 minutes. Morphological observation revealed that the crystal particles of HAp are regular and granular, with a size of 25-45 nm in the longitudinal section. The fast reaction rate and energy efficiency of microwave irradiation were confirmed by the results.
Article
Chemistry, Multidisciplinary
F. C. Romeiro, B. C. Silva, A. S. Martins, M. V. B. Zanoni, M. O. Orlandi
Summary: This study demonstrates the synthesis of Sn3O4 and rGO-Sn nanocomposite through microwave-assisted hydrothermal method for photoelectrochemical reduction of CO2 to methanol. The nanocomposite showed enhanced activity and stability, with a high selectivity for methanol conversion at different potentials. The presence of rGO in the nanocomposite facilitated efficient charge transport and electron-hole separation, contributing to the improved efficiency of solar-to-chemical energy conversion.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Electrical & Electronic
Zhengwei Chen, Feng Liang, Qiaoli Zhang, Bing Li, Guangding Ge, Deshuang Zhao
Summary: The study introduces an analytical method based on FT and TR techniques to synthesize UMFs, utilizing a TRM antenna array for UMF generation. Full-wave simulations validate the effectiveness and accuracy of this method, while also exploring key factors influencing the UMF.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Chemistry, Physical
Aysenur Aygun, Fulya Gulbagca, Elif Esra Altuner, Muhammed Bekmezci, Tugba Gur, Hassan Karimi-Maleh, Fatemeh Karimi, Yasser Vasseghian, Fatih Sen
Summary: In this study, Palladium-Platinum bimetallic nanoparticles were successfully synthesized using a green synthesis method with Nigella sativa seed extract. The synthesized nanoparticles exhibited excellent catalytic, antibacterial, and anticancer activities. The green synthesis approach has significant advantages over chemical methods.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Yingji Wu, Elif Esra Altuner, Rima Nour El Houda Tiri, Muhammed Bekmezci, Fulya Gulbagca, Aysenur Aygun, Changlei Xia, Quyet Van Le, Fatih Sen, Hassan Karimi-Maleh
Summary: In this study, environmentally friendly zinc oxide nanoparticles (CO-ZnO NPs) were synthesized using coffee oil (CO) waste. The synthesized CO-ZnO NPs were characterized by UV-Visible spectrometry, FTIR, and XRD methods. The CO-ZnO NPs exhibited high catalytic activity in hydrogen production and excellent photocatalytic activity in the degradation of methylene blue (MB) dye under sunlight.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Yingji Wu, Rima Nour Elhouda Tiri, Muhammed Bekmezci, Elif Esra Altuner, Aysenur Aygun, Changtong Mei, Yan Yuan, Changlei Xia, Elena-Niculina Dragoi, Fatih Sen
Summary: A novel activated carbon supported trimetallic Pt-Ru-Ni nanoparticles were synthesized and demonstrated to be an efficient catalyst for hydrogen production and enhanced photodegradation of methylene blue dye. The nanoparticles were characterized using various techniques, and the results showed high photocatalytic degradation of the dye and good catalytic activity for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Sadin Ozdemir, Zeynep Turkan, Ersin Kilinc, Ramazan Bayat, Fatih Sen
Summary: This study investigated the bioaccumulation, remediation, tolerance, and effects of manganese ions and copper ions on antioxidant enzymes of thermophilic Bacillus cereus SO-16. The results showed that Mn(II) was less toxic than Cu(II) to B. cereus SO-16, and the bacterium exhibited less tolerance to Mn(II) and Cu(II) ions in liquid medium compared to solid medium. The study also found that B. cereus SO-16 can be utilized in industrial wastewaters for the recovery and remediation of toxic metals.
Article
Environmental Sciences
Fatma Gol, Emre Kacar, Zeynep Gizem Saritas, Selin Cibuk, Cigdem Ture, Melek Arslan, Fatih Sen
Summary: This study investigated the use of boron-based materials on efficiency of environmentally friendly porous ceramics. A glaze formulation was created using high amounts of frit and low-temperature sintering. Boric acid and colemanite were added to the glaze, and different formulations were created by reducing the frit percentage. X-ray crystallography analysis revealed the crystal phase structures of glaze samples, while scanning electron microscopy was used to examine the surface properties of the samples. Differential thermal analysis and thermogravimetric analysis were performed to determine their thermal behavior. The results showed that boron derivatives act as a good flux agent without negatively affecting the surface and technical properties of the glaze.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Akbar Hojjati-Najafabadi, Aysenur Aygun, Rima Nour Elhouda Tiri, Fulya Gulbagca, Mohamed Islam Lounissaa, Peizhong Feng, Fatemeh Karimi, Fatih Sen
Summary: In this study, biosupported ruthenium/nickel co-doped zinc nanoparticles (btRNZn NPs) were used as a catalyst for hydrogen release from the methanolysis of sodium borohydride, and for the removal of Methyl Orange organic dye through photocatalytic activity. The btRNZn NPs showed an average size of 11.78 nm and a photodegradation effect of 68.2% against MO dye. The effects of catalyst, substrate, and temperature in the methanolysis reaction were investigated, and the reaction kinetics and energy parameters were calculated.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Environmental Sciences
Y. Kocak, I. Meydan, T. Gur Karahan, F. Sen
Summary: The mycosynthesis of silver nanoparticles (AgNPs) using edible mushroom extract was characterized using various analytical methods. The AgNPs exhibited absorption peak at 415 nm and had a face-centered cubic structure. The biosynthesized AgNPs showed potential therapeutic properties, such as DNA damage restoration, antioxidant activity, and inhibition of lipid peroxidation. The mycosynthesis method was found to be less toxic, cost-effective, and environmentally friendly, making it a promising approach for the development of new-generation drugs.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Fuad Ameen, Elif Esra Altuner, Rima Nour Elhouda Tiri, Fulya Gulbagca, Aysenur Aygun, Fatih Sen, Najwa Majrashi, Raha Orfali, Elena Niculina Dragoi
Summary: This study synthesized an iron (II) oxide-zinc oxide (Fe2O3/ZnO) nanocomposite using eco-friendly methods and evaluated its performance as a catalyst for textile dyes and hydrogen generation. The nanocomposite was synthesized from the Thymus vulgaris plant and characterized using various techniques. The results showed that the nanocomposite had small particle and crystal sizes. It exhibited high efficiency in hydrogen production and dye removal, indicating its potential as an efficient catalyst for alternative energy production and textile industry.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Ramazan Bayat, Hakan Burhan, Muhammed Bekmezci, Elif Sahin Isgin, Merve Akin, Fatih Sen
Summary: In this study, a PtRu catalyst supported by carbon nanofibers (CNF) was developed and investigated for the electrochemical oxidation of methanol and ethanol. The synthesized PtRu@CNF nanoparticles exhibited good diffusion efficiency, oxidation potential, and forward peak current density. The forward peak current densities for ethanol and methanol oxidation were measured to be 29.17 mA/cm2 and 48.14 mA/cm2, respectively. These PtRu@CNF nanoparticles possess high conductivity, low onset potential, and high electrochemical surface area, making them suitable catalysts for direct alcohol fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Lina Hammed Mohammed, Fulya Gulbagca, Rima Nour Elhouda Tiri, Aysenur Aygun, Muhammed Bekmezci, Fatih Sen
Summary: In recent years, there has been growing momentum in the research on dye removal and hydrogen energy. However, the existing methods for dye removal, both biological and physical, are inadequate. Similarly, the efficiency of hydrogen production without a catalyst is very low. Therefore, it is crucial to obtain inexpensive catalysts for both purposes.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2023)
Article
Engineering, Environmental
Elif Esra Altuner, Fulya Gulbagca, Rima Nour Elhouda Tiri, Aysenur Aygun, Fatih Sen
Summary: In this study, palladium-zinc oxide nanoparticles (Pd@ZnO NPs) were synthesized from biomass using a biogenic method. The nanoparticles were characterized using various techniques and were found to have a spherical structure with an average size of 8.163 nm. The catalytic efficiency of the NPs was observed through hydrogen production and photocatalytic efficiency tests, showing a reusability rate of 74% after four cycles. The study also provided important measurements of Ea, ΔH, and ΔS values for the Pd@ZnO NPs.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2023)
Article
Engineering, Environmental
Ramazan Bayat, Merve Akin, Bahar Yilmaz, Muhammed Bekmezci, Mevlut Bayrakci, Fatih Sen
Summary: Biogenic platinum nanoparticles (Pt NPs) were synthesized using a green synthesis method. The Pt NPs and plant extract were characterized using XRD, TEM, and FTIR. The cytotoxic and antibacterial effects of the Pt NPs were investigated on various cell lines and bacterial strains, and the Pt NPs were also studied for their potential use in alternative clean energy production, showing promising results in alcohol oxidation.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Muhammed Bekmezci, Ramazan Bayat, Merve Akin, Zeynep Kazel Coguplugil, Fatih Sen
Summary: In this article, a simple and label-free electrochemical miRNA biosensor was developed, which could detect miR-141 sensitively and selectively without tags. The hybridization between single-stranded DNA probes and target miR-141 sequence was successfully accomplished, and significant peaks were observed at different concentrations of miR-141. The detection limit of miR-141 was found to be 3 pM, and the biosensor showed a significant difference in peak currents between miR-141 and other target molecules. The integration of this strategy into mobile devices has also been successfully carried out.
Article
Thermodynamics
Ali Cherif, Mohamed Atwair, Tesfalem Aregawi Atsbha, Mohammadamin Zarei, Ian J. Duncan, Rachid Nebbali, Fatih Sen, Chul-Jin Lee
Summary: This study comparatively investigated and optimized the M-SMR process using a Pd-based membrane with a Ni/Al2O3 catalyst. The optimal membrane distribution was determined through multiobjective Bayesian optimization, resulting in high hydrogen recovery and low CO2 emission. The optimization results showed significantly reduced CO2 selectivities and high separation ratio for WC-M-SMR and PB-M-SMR.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Merve Akin, Muhammed Bekmezci, Ramazan Bayat, Iskender Isik, Fatih Sen
Summary: The production of structures from covalent organic frameworks, particularly graphene aerogel (GA), is of great importance in utilizing porous structures effectively. In this study, GA was synthesized using ascorbic acid as a green reducing agent and exhibited a 3D stacked ultralight and highly porous structure. The modified GA with PtFe3O4 showed enhanced electrocatalytic activity and long-term stability in methanol oxidation studies. The introduction of GA increased electrical conductivity and surface area, demonstrating its high potential in methanol oxidation research.
