Article
Energy & Fuels
Tianfu Huang, Zehai Qiu, Zhibiao Hu, Xiaochun Lu
Summary: In this study, hierarchical porous CoFe2O4 was successfully fabricated and applied as electrode for supercapacitors, showing excellent electrochemical performance. The CoFe2O4 electrode demonstrated high specific capacitance and cycling stability, making it a promising candidate for supercapacitor electrodes.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Ceramics
Sarwar Hasan, Bruska Azhdar
Summary: Nickel and zinc spinel ferrites were prepared using the sol-gel auto-combustion approach. XRD studies confirmed their spinel structure and determined their crystallite sizes. Morphological analysis revealed the size and shape of the nanoparticles. Energy dispersive spectroscopy verified the composition. Optical and magnetic studies were conducted, and the dielectric properties and AC conductivity were analyzed, showing significant differences between NFO and ZFO.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Morvarid Alipour Marjeghal, Arman Sedghi, Saeid Baghshahi
Summary: Strontium hexaferrite is a hard ferrite widely used as a permanent magnetic material due to its high anisotropy, high saturation magnetization, chemical stability, and corrosion resistance. The study found that the crystal size of strontium hexaferrite is significantly affected by the molar ratio of citric acid to metal nitrates. Increasing the molar ratio of citric acid improves the saturation magnetization and magnetic remanence magnetization while decreasing the coercive field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Condensed Matter
T. Rafique, M. Atif, M. Nadeem, T. Meydan, J. Cuenca, W. Khalid, Z. Ali
Summary: Chromium-doped Ni0.3Co0.2Zn0.5Fe2-xCrxO4 (0.0 ≤ x ≤ 0.1) nanoferrites were synthesized via the sol-gel technique, and the influence of cation distribution on their physical properties was investigated.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Chemical
R. Mithun Prakash, C. Ningaraju, K. Gayathri, Y. N. Teja, M. Aslam Manthrammel, Mohd. Shkir, S. AlFaify, M. Sakar
Summary: This paper reports a solution auto-combustion (AC) process for the rapid synthesis of Fe3O4 nanoparticles derived from the sol-gel (SG) process. By using citric acid (CA) and tartaric acid (TA) as gelling agents in the SG process, citric acid acts as a fuel that combusts the gel and yields highly magnetic crystalline Fe3O4 nanoparticles in one step. In contrast, different concentrations of citric acid and any concentrations of tartaric acid do not induce combustion and only result in amorphous iron oxides. Upon annealing, the CA and TA derived iron oxide samples transform into crystalline alpha-Fe2O3 particles. Photocatalytic studies show that the synthesized Fe3O4 nanoparticles exhibit higher photocatalytic efficiency and stability under simulated solar light irradiation.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Physics, Applied
M. S. Pereira, V. M. R. Vasconcelos, M. P. S. Palacio, F. G. S. Oliveira, L. P. M. Santos, D. L. M. Vasconcelos, P. T. C. Freire, I. F. Vasconcelos
Summary: Nanoparticles of cobalt, nickel, and zinc spinel ferrites were successfully synthesized using a proteic sol-gel method. Characterization techniques revealed structural, morphological, optical, and magnetic properties, showing differences in optical band gaps and magnetic behavior among the samples.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2021)
Article
Chemistry, Inorganic & Nuclear
Shrikant M. Suryawanshi, Kamlesh Chandekar, Dilip S. Badwaik, Vijay V. Warhate, Nomdeo M. Gahane, Sarang R. Daf
Summary: Multi-metal spinel ferrite nanocrystals of Ni0.3Cu0.3Zn0.4Fe1.4Cr0.6O4 were synthesized using sol-gel auto-combustion route. The structural, magnetic, and dielectric properties of the nanocrystals were affected by calcination temperature. The prepared nanocrystals exhibited different crystallite sizes, lattice strains, dislocation densities, saturation magnetizations, retentivities, coercivities, magnetic anisotropies, dielectric constants, dielectric losses, conductivity values, and impedance values at low-frequency range. These nanocrystals have potential applications in capacitors, recording systems, high-frequency devices, and multilayer chip inductors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Utari, Hikmah Maulidina, Retna Arilasita, Hendri Widiyandari, Budi Suharno, Budi Purnama
Summary: Hematite nanoparticles were synthesized using the sol-gel method, and their physical properties were modified by varying the citric acid concentration. XRD data revealed the rhombohedral (hexagonal) structure and space group R3c of the resulting sample. According to the Scherer formula, the crystallite size at the main peak decreased with an increase in citric acid concentration. The FTIR spectrum's absorption band provided information about the properties of the hematite nanoparticles. Furthermore, the VSM data showed a significant decrease in the coercive field as the citric acid concentration increased.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
Willians Lopes de Almeida, Nilson S. Ferreira, Fabiano Severo Rodembusch, Vania Caldas de Sousa
Summary: ZnO nanoparticles were successfully synthesized using cassava starch as a chelating agent. Analysis through XRD, FTIR, and TEM revealed the properties and structures of the synthesized nanoparticles. The results showed that the average size of the nanoparticles increased with the rise in calcination temperature, and the optical properties were affected accordingly.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Han Wang, Yujie Ma, Yanchao Shen, Cancan Zhang, Jiazhi Yang, Pingyun Li
Summary: In this study, Co3O4/N-doped carbon materials and Co-Co3O4/N-doped carbon materials were prepared using the sol-gel method. Calcination and acid-base inhibition were employed to enhance the catalytic performance of the materials. The materials prepared using ethylene glycol and glycerol exhibited excellent catalytic activity in the hydrogenation reduction reaction. Additionally, using acrylamide as the source of carbon and nitrogen resulted in highly active Co-Co3O4/NC nanocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
A. S. Kakde, R. M. Belekar, G. C. Wakde, M. A. Borikar, K. G. Rewatkar, B. A. Shingade
Summary: The influence of Zn substitution on the magnetic properties of Ni-Zn ferrite nano materials was investigated, leading to superparamagnetic behavior and weaker magnetic interactions in the nano ferrite.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Shroq AlZadjali, Zineb Matouk, Abdulla AlShehhi, Nitul Rajput, Meriam Mohammedture, Monserrat Guttierrez
Summary: Superhydrophobic coatings are becoming increasingly popular due to their low maintenance requirements, high durability, and wide range of potential applications. These coatings can provide resistance to fouling, icing, smear, and corrosion, as well as the ability to separate oil from water. Consequently, the development of superhydrophobic materials is a topic of significant interest among academics worldwide. In this paper, a spray-coating deposition technique is utilized to deposit silica nanoparticles on glass using a sol-gel as a base. The resulting coating significantly increased transmittance to 99% at 600 nm. Water contact angle (WCA) and scanning electron microscopy (SEM) analysis of the coated layer's grade index and induced porousness demonstrated superhydrophobic behavior with a water contact angle exceeding 158 degrees.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Ceramics
Breno R. Barrioni, Sandhra M. de Carvalho, Parichart Naruphontjirakul, Elizabeth Norris, Nicole L. Kelly, John V. Hanna, Julian R. Jones, Marivalda de M. Pereira
Summary: Novel monodispersed spherical dense BGNPs with a diameter of 92 nm and cobalt as the pro-angiogenic ion were obtained using a modified Stober method. The controlled release of Co2+ ions in culture media indicated the great potential of these materials as intracellular ion delivery systems with therapeutic properties. The study confirmed the presence of Co2+ species and the role of Co and Ca as network modifiers in the silica glass through various analytical techniques.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Neda Ghaebi Panah, Rob Atkin, Timothy B. Sercombe
Summary: Mesoporous glass 58S has excellent bioactivity and strength. However, sintering can lead to crystallization, reducing bioactivity. The occurrence of segregation can affect the material properties of post-sintered glasses.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Nan Li, Nuoting Yu, Zhongzhou Yi, Di An, Zhipeng Xie
Summary: In this study, stable 12Ce-ZrO2 nanoparticles were successfully prepared using a novel sol-gel-flux method, and were compared with the product synthesized using the traditional sol-gel method. The results showed that the sol-gel-flux method exhibited better sintering ability and more homogeneous microstructure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Iftkhar Ahmad, Kaiser Manzoor, Gulshitab Aalam, Md Amir, Syed Wazed Ali, Saiqa Ikram
Summary: A magnetically recyclable SPION@L-tryptophan-Cu2+/Cu-0 nanocomposite was synthesized using a simplistic co-precipitation method. The nano-photocatalyst exhibited high catalytic efficacy, especially in the reduction of nitrobenzene and the degradation of methylene blue under visible light irradiation. The nanocomposite can be easily separated using an external magnetic field and showed efficient reusability even after several cycles.
Article
Materials Science, Ceramics
Md Amir, Vinod Mishra, Rohit Sharma, Faiz Iqbal, S. Wazed Ali, Shravana Kumar, Gufran S. Khan
Summary: This study develops a smart material based on SPION for magnetorheological finishing, which possesses dual properties of nanoabrasives and magnetic nanoparticles. The developed SPION abrasive enhances the polishing performance of magnetorheological finishing technique and improves the surface roughness (Ra) values of BK-7 optical glass by 88.14%.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Mallikarjunagouda B. B. Patil, Shridhar N. N. Mathad, Arun Y. Y. Patil, Anish Khan, Mahmoud Ali Hussein, Abeer M. M. Alosaimi, Abdullah M. M. Asiri, A. Manikandan, Mohammad Mujahid Ali Khan
Summary: The study prepared poly(vinyl alcohol) (PVA) and starch-based polymeric films with different concentrations of grapefruit seed extract (GSE). The films showed improved mechanical properties and antimicrobial efficacy when a small amount of GSE was incorporated.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Crystallography
Salma A. A. Al-Zahrani, Mallikarjunagouda B. B. Patil, Shridhar N. N. Mathad, Arun Y. Y. Patil, Ahmed A. A. Otaibi, Najat Masood, Dorsaf Mansour, Anish Khan, A. Manikandan, Edi Syafri
Summary: The green synthesis approach using Punic granatum plant leaf extract successfully produced environmentally friendly zinc oxide nanoparticles. Characterization using various techniques revealed that the nanoparticles were crystalline, with an average diameter of 20 nm. The synthesized nanoparticles demonstrated effective photocatalytic oxidation of reactive dye in water, advancing the development of green photocatalysts for dye removal.
Article
Chemistry, Physical
M. Sertkol, Y. Slimani, M. A. Almessiere, A. Baykal, S. Akhtar, E. G. Polat, S. Caliskan
Summary: Mn0.5Zn0.5DyxEuxFe2-2xO4 (x <= 0.1) nanospinel ferrites were synthesized using ultrasonication. The samples exhibited cubic spinel phase without impurities and nanostructure confirmed by XRD, TEM, and SEM. DR spectra revealed energy band gaps between 2.44 and 2.56 eV. The magnetic properties of DyEu -> MnZn (x <= 0.1) NSFs were influenced by Eu3+-Dy3+ ion inclusion, showing superparamagnetic and ferromagnetic behavior.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Optics
Md Amir, Rohit Sharma, Vinod Mishra, Kamal K. Pant, Amit K. Agarwal, Daewook Kim, S. Wazed Ali, Gufran Sayeed Khan
Summary: This study presents the development of a nanocomposite-based nanoabrasive for achieving superfine optical surfaces through optical polishing. The nanocomposite consists of superparamagnetic iron oxide nanoparticles (SPION) functionalized with Malic acid as an organic surface modifier. The successful chemical attachment between SPION and Malic acid is confirmed by Fourier transform infrared spectroscopy. The functionalized nanoabrasive exhibits increased surface area and zeta potential of SPION as well as narrowed particle size distribution. The polishing performance of the functionalized SPION nanoabrasive is demonstrated on BK7 and Fused Silica glasses, achieving superfine surface finishing with Ra values of 0.23 nm and 0.1 nm, respectively.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Salma Ahmed Al-Zahrani, Khalid Umar, Saleh Ali Tweib, Jebrel Abdeljawad M. Rashd, Saima Khan Afridi, Showkat Ahmad Bhawani, Ahmed Al Otaibi, Najat Masood, Dorsaf Mansour, Anish Khan, Manikandan Ayyar
Summary: In this study, zinc oxide (ZnO) and zinc oxide/graphene oxide (ZnO/GO) were successfully synthesized using Carica papaya leaf extract and oil palm empty fruit bunch biomass. The samples were characterized to understand their morphology, size, structural phase purity, functional groups and optical properties. The results showed the presence of various peaks and a red shift in the case of ZnO/GO. The synthesized materials exhibited nanosized particles and showed high decolorization efficiency for methylene blue.
Article
Crystallography
Salma A. Al-Zahrani, Mallikarjunagouda B. Patil, Shridhar N. Mathad, Arun Y. Patil, Ahmed Al Otaibi, Najat Masood, Dorsaf Mansour, Anish Khan, Vikas Gupta, Niraj S. Topare, Amita Somya, Manikandan Ayyar
Summary: The study explored the photocatalytic degradation of Acid Red 26 using graphitic carbon nitride (g-C3N4) catalyst and UV-A light. Both synthetic and actual municipal wastewater showed high clearance rates, although the degradation was slower in wastewater due to its complex chemical composition. Intermediate products were identified using liquid chromatography-mass spectrometry (LC-MS), and the importance of reactive species (h⁺ and O-2⁻) in the degradation process was demonstrated.
Article
Engineering, Electrical & Electronic
J. V. Annie Vinsla, P. Annie Vinosha, S. Vijayalakshmi, Belina Xavier, A. Muthukrishnaraj, Manikandan Ayyar, Mohamed Henini
Summary: In this study, ammonia-free hexagonal boron nitride (h-BN) nanocrystals were successfully synthesized using a cost-effective hydrothermal technique. The synthesized nanocrystals, incorporated with varying weight% of cobalt (Co), exhibited enhanced performance in terms of structural, optical, elemental, functional, and morphological properties. The 10% Co-doped h-BN nanocrystals showed superior catalytic activity, leading to a remarkable 99.4% degradation of the Methylene Blue (MB) dye within just 9 minutes.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Suresh Antony, Rushika J. Mehta, Soosaimanickam Maria Packiam, Joseph Devadass Balthazar, Melvin A. Daniel, Lakshminarayanan Srimathi Priya, Manikandan Ayyar
Summary: Morus sp. (mulberry) has gained importance in recent years due to its phytochemical composition and beneficial effects on human health. The leaves of the mulberry plant contain significant amounts of glycosylated flavonols and chlorogenic acid, making it a potential alternative therapy for various ailments. This study found that the ethanolic extract of mulberry leaves showed higher xanthine oxidase (XO) inhibition, indicating its potential as an anti-gout agent. The total polyphenol content of the extract was found to be associated with its anti-gout property.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
C. Bhagya Lakshmi, S. Anna Venus, S. Velanganni, A. Muthukrishnaraj, Manikandan Ayyar, Mohamed Henini
Summary: This study investigates the use of V2O5/ZnO and rGO-V2O5/ZnO nanocomposites as photoanodes to improve the power conversion efficiency of dye-sensitized solar cells. The structural and electrical characteristics of these nanocomposites are analyzed, and it is found that they can significantly enhance the performance of the solar cells.
Article
Chemistry, Multidisciplinary
Pitcheri Rosaiah, Ponnusamy Divya, Sangaraju Sambasivam, Ammar M. Tighezza, V. Kalaivani, A. Muthukrishnaraj, Manikandan Ayyar, Theophile Niyitanga, Haekyoung Kim
Summary: MnO2 NWs/MWCNT and MnO2 NWs/rGO composites were synthesized using a hydrothermal method, showing high specific discharge capacity and excellent cycling stability.
Article
Green & Sustainable Science & Technology
S. Saranya, S. Dhanapandian, S. Suthakaran, Sankaranarayanan Nagarajan, N. Krishnakumar, S. Dinesh, A. Muthukrishnaraj, Ayyar Manikandan
Summary: Evolving efficient electrochemically active nanostructures from earth-abundant transition metals, such as nickel (Ni) and manganese (Mn), has gained significant interest for energy storage applications. In this study, Ni-Mn diselenide nanoparticles with spherical morphology were successfully synthesized using a simple hydrothermal method. The synthesized NiMnSe2 nanoparticles demonstrated a cubic phase and excellent electrochemical behavior, with a specific capacitance of 1490F/g.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Chemistry, Physical
Ghulam Abbas, Francisco C. Franco Jr, S. Janani, J. N. Cheerlin Mishma, A. Manikandan, S. Muthu, Christopher E. Anson
Summary: A new dimeric complex was synthesized through a one-pot reaction in MeOH and characterized by infrared spectroscopy, elemental analysis, and single crystal X-ray diffraction. The theoretical study and molecular docking analysis revealed the structural properties and potential biological activity of the complex.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Suthagar Govindaraj, Saravanakumar Ayyapan, Poornima Durai, Priyanka Kandasamy, Loganathan Guganathan, Madhappan Santhamoorthy, Anbazhagan Murugan, Selvakumar Suthakaran, Subbarayan Sathiyamurthy, Manikandan Ayyar
Summary: The current study aims to collect baseline research data for the area near the Vellar estuary mangroves. Factors such as temperature, nitrate, pH, salinity, ammonia, inorganic phosphate, dissolved oxygen, and silicate play a key role in chemical and biological water reactions as well as the growth of flora and fauna in the estuary. The study reveals unique seasonal variations and an increasing trend in nutrient levels during the summer to monsoon seasons.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
