Article
Engineering, Electrical & Electronic
Fawzy G. El Desouky, M. M. Saadeldin, Manal A. Mahdy, I. K. El Zawawi
Summary: Nanocomposites of CeO2/NiFe2O4 supported polymers were prepared using a hydrothermal process, showing improved morphology and magnetic response, suitable for applications involving photoinduced charge relocation and isolation.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
A. Bajorek, C. Berger, M. Dulski, M. Zubko, S. Lewinska, K. Prusik, A. Slawska-Waniewska, F. Grasset, N. Randrianantoandro
Summary: The study compares NiFe2O4 (coprecipitation) and NiFe2O4@SiO2 (coprecipitation and microemulsion) ferrite nanoparticles in their as-received and annealed forms. The results show that thermal treatment induces gradual crystallization in the as-received samples, with the presence of cubic inverse spinel ferrite structure confirmed in all samples. FTIR spectroscopy confirms the spinel structure and other Fe-based states, while a nonstoichiometric hematite is detected in the annealed NiFe2O4 sample. The study also reveals changes in magnetic properties and electronic structure with the effects of crystallization, grain growth, and hematite separation.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Fawzy G. El Desouky, M. M. Saadeldin, Manal A. Mahdy, I. K. El Zawawi
Summary: (SnO2)(1-x) (NiFe2O4)(x) nanocomposites were synthesized using a three-step hydrothermal technique. The study of the crystal structure and morphological variations was carried out through XRD, HRTEM, and FESEM analysis. The increase of NiFe2O4 content enhanced the absorption capability in the visible domain, resulting in a red-shift. The nanocomposites exhibited improved magnetic response and supported the idea of photoinduced charge migration and magnetic segregation.
Article
Materials Science, Multidisciplinary
R. Martinez Garcia, V. Bilovol, S. Ferrari, P. de la Presa, P. Marin, M. Pagnola
Summary: A nanostructured magnetic composite based on hexagonal ferrite BaFe12O19 and cubic ferrite NiFe2O4 was synthesized. The size of the nanoparticles in the composite was controlled by varying the synthesis conditions and heat treatments. The microstructure of the composites significantly influenced their magnetic properties, and composites with different size ratios exhibited different BH values.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Energy & Fuels
Beibei Feng, Chunlan Qin, Ying Shi, Lidong Zhang
Summary: Manganese oxides, especially Mn3O4 nanoplate catalyst, show promising catalytic performance in ethanol combustion with small crystal size, large surface area, exposed facets, and abundant Mn4+ and defective structure.
Article
Materials Science, Multidisciplinary
Jiaju Wang, Xuyan Xue, Yiqian Wang
Summary: In this study, strontium ferrite nanofibers with different Sr:Fe ratios were fabricated using electrospinning and annealing. The crystal structures and magnetic properties of the nanofibers were analyzed through microscopy and X-ray diffraction. It was found that the nanofibers with Sr:Fe ratios of 1:1, 1:2, and 1:12 possessed tetragonal SrFeO2.86, orthorhombic SrFe2O4, and hexagonal SrFe12O19 structures, respectively. Hysteresis loop measurements showed slight variations in saturation magnetization (Ms) and residual magnetization (Mr) among the nanofibers. This study clarifies the crystal structure of strontium ferrite nanofibers and provides a potential candidate for permanent magnet applications.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Electrical & Electronic
Subodh Khamari, Ashish Kumar, Niharika Mohapatra, Rajan Jha
Summary: This study presents a microfiber-based magnetometer that operates in high magnetic fields and is suitable for non-invasive medical diagnostics. The magnetometer utilizes NiFe2O4 ferrite fluid nanoparticles and demonstrates high sensitivity and a large operational range. The synthesized nanoparticles were characterized using various techniques.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Zein K. Heiba, Mohamed Bakr Mohamed, Noura M. Farag, A. M. El-naggar, Y. Altowairqi
Summary: The study focused on the crystal structure, optical properties, and nonlinear optical behavior of ZMO/NFO nanocomposite materials prepared in different proportions. The results showed changes in optical characteristics and photoluminescence of the nanocomposite samples as the NFO content increased.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
C. Ferrer, J. Isasi, P. Arevalo, M. Fernandez-Ramos, M. Rapp, M. Alcolea, J. F. Marco, F. Martin-Hernandez
Summary: This study investigated the optimal synthesis conditions of nickel ferrite samples with small particle size and evaluated their properties using various characterization techniques. The samples synthesized with urea exhibited square particles, while those prepared with potassium hydroxide showed spherical particles. The sample synthesized with urea and functionalized with AEPDMS demonstrated the best adsorption capacity for Cu2+ ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Tripta, Pawan S. Rana, Suman
Summary: NiFe2O4, CdO and NiFe2O4@CdO nanocomposites were synthesized using a chemical co-precipitation process. The crystallinity of NiFe2O4 and CdO was confirmed by TEM and SAED analysis. XRD and FTIR demonstrated the formation of NiFe2O4 and CdO. UV-Vis analysis showed an increased band gap for the nanocomposites compared to NiFe2O4. XPS elucidated the chemical state. The electrical properties of NiFe2O4 were enhanced in the nanocomposites, with a conductivity increase from 0.8 x 10-5 S cm-1 for pristine NiFe2O4 to 2 x 10-3 S cm-1 for 0.5NiFe2O4@0.5CdO. The degradation of methylene blue under UV-Vis light was influenced by the amount of CdO. NiFe2O4@CdO nanocomposites exhibited improved photocatalytic performance compared to NiFe2O4. The nanocomposites could be easily retrieved from the solution using a strong magnet.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mahnaz Alizadeh, Mahmoud Zarei, Masoud Ebratkhahan, Mohammad Amjadi
Summary: The study investigated the effects and catalytic properties of various nanomaterials on permanganate chemiluminescence systems, with silver nanoprisms showing a significant enhancing effect on the system.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Nguyen Anh Tien, V. O. Mittova, B. V. Sladkopevtsev, Vo Quang Mai, I. Ya Mittova, Bui Xuan Vuong
Summary: Undoped and Y-doped NiFe2O4 nanoparticles were successfully synthesized. The appropriate annealing temperature and time to obtain single-phase spinel NiFe2-xYxO4 is 800 degrees C for 1 h. The samples demonstrated strong optical absorption in the UV and visible ranges, as well as strong ferromagnetic behavior.
SOLID STATE SCIENCES
(2023)
Article
Chemistry, Physical
Meenal Chauhan, Ekta Arya, Anand Kumari, Sujata Sanghi, Ashish Agarwal
Summary: Multiferroics with composition yNiFe2O4 -(1-y) BaTiO3(y = 0.10, 0.30, and 0.50) were prepared through solid-state reaction. The crystal structure and phase purity of the samples were investigated using X-ray diffraction (XRD) analysis. Rietveld refinement confirmed the presence of cubic (Fd3m) and tetragonal (P4mm) symmetries in all samples. The effect of ferrite (NFO) concentration on magnetic, dielectric, ME coefficient, and ferroelectric properties was further studied. The highest magnetoelectric response was observed in the sample 0.10NiFe2O4-0.90BaTiO3. The coercive field and remnant polarization increased with an increment in ferrite content at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xiaofeng Zhu, Bingyang Bai, Bin Zhou, Shengfu Ji
Summary: Nanosized Co3O4 with various morphologies were synthesized and tested for catalytic removal of ethyl acetate. Among them, single crystal NP-Co3O4 showed the highest catalytic activity, attributed to its large specific surface area and active surface oxygen species.
CATALYSIS COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Wangwang Liu, Yong Men, Fei Ji, Feng Shi, Jinguo Wang, Shuang Liu, Tamerlan T. T. Magkoev, Wei An
Summary: Three types of a-Mn2O3 catalysts with different morphologies were prepared and evaluated for ethanol total oxidation. The a-Mn2O3-cubic catalyst showed a higher reaction rate than the other two types under high space velocity. The morphology-dependent reactivity was found to be correlated with low-temperature reducibility, surface Mn4+ abundance, and adsorbed reactive oxygen species.
Article
Materials Science, Ceramics
Manisha Dhiman, Santosh Bhukal, Bhupendra Chudasama, Sonal Singhal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2017)
Article
Chemistry, Physical
Charanjit Singh, Ankita Goyal, Rupal Malik, S. Bansal, Sonal Singhal
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Materials Science, Multidisciplinary
Charanjit Singh, Ankita Goyal, Sandeep Bansal, Sonal Singhal
MATERIALS RESEARCH BULLETIN
(2017)
Article
Chemistry, Multidisciplinary
Rupal Malik, Jaspreet Kaur, Anupama Kaushik, Ankush Sheoran, Bhupendra Chudasama, Vinod Kumar, K. B. Tikoo, Sonal Singhal
NEW JOURNAL OF CHEMISTRY
(2017)
Article
Engineering, Chemical
Ankita Goyal, Rajat Sharma, S. Bansal, K. B. Tikoo, V. Kumar, Sonal Singhal
ADVANCED POWDER TECHNOLOGY
(2018)
Article
Materials Science, Ceramics
Ankita Goyal, Bhanvi Chawla, S. Bansal, K. B. Tikoo, V. Kumar, Sonal Singhal
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Multidisciplinary
Surbhi Kapoor, Ankita Goyal, Sandeep Bansal, Sonal Singhal
NEW JOURNAL OF CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Ankush Sheoran, Manisha Dhiman, Santosh Bhukal, Rupal Malik, Jyoti Agarwal, Bhupendra Chudasama, Sonal Singhal
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Materials Science, Ceramics
Manisha Dhiman, Bhupendra Chudasama, Vinod Kumar, K. B. Tikoo, Sonal Singhal
CERAMICS INTERNATIONAL
(2019)
Article
Engineering, Environmental
Rupal Malik, Ankita Goyal, Sarita Yadav, Nancy Gupta, Neetu Goel, Anupama Kaushik, Vinod Kumar, K. B. Tikoo, Sonal Singhal
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Chemistry, Applied
Manisha Dhiman, Sonal Singhal
JOURNAL OF RARE EARTHS
(2019)
Article
Chemistry, Multidisciplinary
Komal, Deepeka, Jaspreet Kaur, Vinod Kumar, K. B. Tikoo, Anupama Kaushik, Sonal Singhal
Summary: A biomass-driven nanocomposite comprising cellulose nanofibers and cadmium sulfide was developed for fluorescence sensing and adsorption of water toxicants, exhibiting advantageous structural features. The nanocomposite showed exceptional enhancement in fluorescence intensity for fluoroquinolones, and demonstrated high adsorption capacities for cationic textile dyes and insecticide. Langmuir isotherm and pseudo-second-order kinetics provided best fits for the adsorption process. This multifaceted composite may contribute to sustainable nanomaterials for environmental protection.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Kanu Gupta, Komal, Nidhi, K. B. Tikoo, Vinod Kumar, Sandeep Bansal, Anupama Kaushik, Sonal Singhal
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Ankita Goyal, Diksha Aggarwal, Surbhi Kapoor, Neetu Goel, Sonal Singhal, Jaya Shukla
NEW JOURNAL OF CHEMISTRY
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Manisha Dhiman, Sonal Singhal
MATERIALS TODAY-PROCEEDINGS
(2019)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)