Article
Chemistry, Multidisciplinary
Xianmeng Song, Xia-Guang Zhang, Yong-Liang Deng, Zi-Ang Nan, Weishen Song, Yanjie Wang, Linzhe Lu, Qiaorong Jiang, Xi Jin, Yanping Zheng, Mingshu Chen, Zhaoxiong Xie, Jian-Feng Li, Zhong-Qun Tian, Feng Ru Fan
Summary: The study shows that utilizing the hydrogen storage capacity of the Pd interlayer, the Au@Pd@Ru nanocatalyst enhances the catalytic activity of Ru metal in the hydrogen oxidation reaction potential range. This has great significance in reducing the cost of anion exchange membrane fuel cells (AEMFCs).
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Anithadevi Sekar, Ramanan Vadivel, Ramanujam Ganesh Munuswamy, Rakhi Yadav
Summary: The study introduces a new fingerprint visualizing agent, the biocompatible zinc oxide-carbon dots/silica gel (C-ZnO-dots/Si) nanopowder, which is low-cost and non-toxic. Results show that the synthesized nanopowder performs well in LF identification and can extract features of Level 1-3.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Lena Meyniel, Cedric Boissiere, Natacha Krins, Sophie Carenco
Summary: In this study, thin films of lanthanide oxysulfide were developed that are compatible with flexible substrates and retain the robustness advantages of inorganic compounds. The films, made using a low-temperature dip coating method, maintained the optical quality of the materials. The thickness of the films could be adjusted in a wide range, and thermal treatment was optimized to remove organic ligands while preserving the integrity of the nanoparticles.
Article
Chemistry, Physical
Adele R. Latypova, Maxim D. Lebedev, Ilya A. Tarasyuk, Alexander I. Sidorov, Evgeniy V. Rumyantsev, Artur S. Vashurin, Yuriy S. Marfin
Summary: A one-step synthesis method for organomodified silica materials using a special surfactant DDAO was developed in this study, eliminating the need for heat treatment. SEM images revealed that all obtained materials had similar spherical morphology with a particle diameter of about 500 nm. The catalytic activity experiments showed that the amino-modified matrix exhibited the highest activity, while the phenyl-modified matrix demonstrated low activity due to hydrophobic interactions hindering product diffusion.
Article
Energy & Fuels
Hongjing Wang, Tongqing Zhou, Kai Deng, Wenjing Tian, Hongjie Yu, You Xu, Xiaonian Li, Ziqiang Wang, Liang Wang
Summary: The design of active and durable cathodic electrocatalysts is critical for fuel cell applications. In this study, tungsten-palladium bimetallic hydrides with a porous nanosheet assembly structure (WPd-H NSAs) were synthesized as high-performance oxygen reduction reaction (ORR) electrocatalysts. The introduction of hydrogen atoms and curved porous nanosheet structures led to weaker oxygen binding energy on palladium, resulting in superior ORR activity compared to traditional platinum-based catalysts.
Article
Materials Science, Multidisciplinary
Diego H. de Hoyos-Sifuentes, Perla J. Resendiz-Hernandez, Jose A. Diaz-Guillen, Roca M. Ochoa-Palacios, Gerardo Altamirano-Guerrero
Summary: The present study synthesized MgFe2O4 nanoparticles with different molar ratios of Mg/Fe by sol-gel and coated them with polyethylene glycol (PEG) using the agitation method. The synthesized nanoparticles and nanocomposites were characterized using various techniques, including XRD, TGA, DTA, SEM-EDX, TEM, VSM, and FTIR. The results showed the structural and morphological properties of the nanoparticles and demonstrated their potential for biomedical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Marcelo da Silva Mantini Viana, Thalita Marcolan Valverde, Breno Rocha Barrioni, Alfredo Miranda de Goes, Marcos Augusto de Sa, Marivalda de Magalhaes Pereira
Summary: This study obtained cobalt-containing nanoparticles with the potential to release pro-angiogenic ions using a sol-gel based method, which can be applied for tissue repair and tissue engineering.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Sumit Pokhriyal, Somnath Biswas
Summary: This study reports the synthesis of titanium-doped hafnium oxide nanoparticles and the investigation of their structural, spectroscopic, and dielectric properties. The crystal structure of the doped nanoparticles was dependent on the doping concentration. The tunable dielectric properties make these nanoparticles suitable for high-frequency, high-k applications.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
S. Kotresh, Aashish S. Roy, Adhigan Murali, Ameena Parveen, N. Anilkumar, H. G. Rajprakash, Nacer Badi
Summary: We investigated the AC electrical response of MgFe2O4-Nb2O5 nanocomposite and synthesized the nanocomposite using a simple combustion method. The structural characterization of the nanocomposites was performed using FTIR, XRD, SEM, and EDX methods. The results showed that doping Nb2O5 can enhance the AC conductivity of MgFe2O4-Nb2O5 nanocomposite. The polarization mechanism of conductivity was explained by permittivity and impedance spectroscopy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
Daniel Navas, Sandra Fuentes, Alejandro Castro-Alvarez, Emigdio Chavez-Angel
Summary: Sol-Gel is a low-cost and flexible synthetic route that can produce a wide range of micro- and nanostructures with small variations in synthesis parameters. By changing precursors, solvents, temperature, and reaction times, the morphology and properties of the products can be modified. This method shows great potential for future applications in various technological fields.
Article
Materials Science, Multidisciplinary
Taranga Dehury, Sandeep Kumar, Chandana Rath
Summary: By doping Pr up to 15 at%, the high-temperature cubic phase of HfO2 has been stabilized at room temperature, with a coexistence of monoclinic and cubic phases observed between 7 and 13 at% of Pr. The decrease in particle size from 35 to 10 nm, along with the decrease in bandgap from 5.42 to 5.06 eV, is attributed to nonstoichiometric HfO2_x and the formation of sub-bands near the conduction band induced by enhanced oxygen vacancies.
Article
Materials Science, Multidisciplinary
Luis A. Hermida-Montero, F. Paraguay-Delgado, Luisa F. Cruz, Daniel Carrillo, Arturo Mtz-Enriquez, Nicolaza Pariona
Summary: This study investigated the in-vitro antifungal activity of ZnO nanoparticles against mutualistic fungi of ambrosia beetles, revealing that uncoated ZnO nanoparticles obtained by the hydrothermal method showed higher antifungal capacity. The coating of NPs was found to be more critical than their size in improving antifungal properties.
Article
Materials Science, Ceramics
M. Rocha, Francisca P. Araujo, S. Castro-Lopes, Idglan S. de Lima, Edson Cavalcanti Silva-Filho, Josy Anteveli Osajima, Carla S. Oliveira, Bartolomeu C. Viana, Luciano C. Almeida, Y. Guerra, R. Pena-Garcia
Summary: In this study, the influence of Fe and Pr addition on the structural, optical, and antibacterial properties of spherical ZnO nanoparticles synthesized via sol gel method was investigated. The lattice constants values increased while the average crystallite size decreased with varying Pr concentration. Raman and FTIR spectroscopies confirmed the single-phase formation of ZnO and the presence of oxygen vacancies. The samples exhibited agglomerated spherical morphology and the textural properties were affected by the inclusion of Fe. The synthesized materials showed promising antimicrobial activity against Escherichia coli and Staphylococcus aureus due to nanomaterial-bacteria interactions.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
E. Piatti, E. Verne, M. Miola
Summary: This study reports for the first time the sol-gel synthesis of bioactive glass nanoparticles containing both boron and copper oxides. The obtained nanoparticles have good morphology, composition, and bioactivity. Future investigations will focus on the biological characterizations of cytotoxicity, antibacterial properties, and pro-angiogenetic abilities.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Sipei Zhang, Ying Xu, Wen Zhang, Peng Cao
Summary: Cu and Y co-doped TiO2 nanoparticles were prepared using an acid-catalytic sol-gel process, resulting in a single anatase phase with reduced crystallite size. SEM observations showed uniform nanospheres being synthesized under the proposed conditions. XPS results demonstrated the presence of Cu+ and Y3+ ions. The photoactivity of the co-doped TiO2 was improved due to effective separation of electron-hole pairs, increased formation of active radicals, and increased surface area.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Zahra Mohammadpour, Afsaneh Safavi, Akbar Omidvar, Afshan Mohajeri, Nabiollah Mobaraki, Mojtaba Shamsipur
JOURNAL OF FLUORINE CHEMISTRY
(2016)
Article
Chemistry, Analytical
Mojtaba Shamsipur, Afsaneh Safavi, Zahra Mohammadpour, Raheleh Ahmadi
Article
Chemistry, Multidisciplinary
Afsaneh Safavi, Raheleh Ahmadi, Zahra Mohammadpour, Jie Zhou
Article
Chemistry, Analytical
Afsaneh Safavi, Maryam Mohammadzadeh, Mohsen Sorouri
MICROCHEMICAL JOURNAL
(2017)
Article
Chemistry, Analytical
Afsaneh Safavi, Raheleh Ahmadi, Zahra Mohammadpour
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Safieh Momeni, Raheleh Ahmadi, Afsaneh Safavi, Iraj Nabipour
Review
Biophysics
Alireza Abi, Zahra Mohammadpour, Xiaolei Zuo, Afsaneh Safavi
BIOSENSORS & BIOELECTRONICS
(2018)
Article
Environmental Sciences
Raheleh Ahmadi, Bahram Hemmateenejad, Afsaneh Safavi, Zahra Shojaeifard, Maryam Mohabbati, Omidreza Firuzi
Article
Engineering, Biomedical
Pooya Iranpour, Maral Ajamian, Afsaneh Safavi, Nasser Iranpoor, Abdolkarim Abbaspour, Sanaz Javanmardi
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2018)
Article
Chemistry, Physical
R. Ahmadi, B. Hemmateenejad, A. Safavi, Z. Shojaeifard, A. Shahsavar, A. Mohajeri, M. Heydari Dokoohaki, A. R. Zolghadr
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Analytical
Afsaneh Safavi, Raheleh Ahmadi, Amir M. Ramezani
MICROCHEMICAL JOURNAL
(2018)
Article
Chemistry, Analytical
Alireza Abi, Ghasem Kazemi, Afsaneh Safavi
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Chemistry, Analytical
Raheleh Ahmadi, Ghasem Kazemi, Amir M. Ramezani, Afsaneh Safavi
MICROCHEMICAL JOURNAL
(2019)
Article
Chemistry, Physical
Zahra Mohammadpour, Seyyed Hossein Abdollahi, Afsaneh Safavi
ACS APPLIED ENERGY MATERIALS
(2018)
Article
Chemistry, Analytical
Zahra Mohammadpour, Afsaneh Safavi, Seyyed Hossein Abdollahi
ANALYTICA CHIMICA ACTA
(2017)
