Results in Chemistry最新文献

{"title":"Cellulose-supported MIL-101(Fe)/g-C3N4 as a sustainable and efficient sorbent for thin film microextraction of organophosphorus pesticides followed by determination through HPLC-UV","authors":"Seyedeh Bentolhoda Hosseinian,&nbsp;Milad Ghani,&nbsp;Jahan Bakhsh Raoof","doi":"10.1016/j.rechem.2026.103624","DOIUrl":"10.1016/j.rechem.2026.103624","url":null,"abstract":"<div><div>A novel cellulose-supported MIL-101(Fe)/g-C₃N₄ (MCN) nanocomposite was developed as a thin film to be used in the thin-film microextraction (TFME) of selected organophosphorus pesticides (OPPs) prior to high-performance liquid chromatography-ultraviolet analysis (HPLC-UV). The hybrid MCN sorbent, exhibited hierarchical porous structure and synergistic intermolecular interactions, including π–π, Lewis acid–base, and hydrophobic interactions, resulting in enhanced extraction performance toward selected analytes including chlorpyrifos, diazinon, and malathion. The MCN composite was hydrothermally synthesized and immobilized onto a cellulose substrate through a simple vacuum-filtration approach, providing a sustainable, low-cost, and reusable TFME platform. Herein, extraction parameters were optimized using one-factor-at-a-time (OFAT), Plackett–Burman design (PBD), and Box–Behnken design (BBD). Under the optimized condition, the proposed method showed linear dynamic ranges (LDRs) of 0.10–200.00 μg L⁻¹ with correlation coefficients higher than 0.9944. The limits of detection (LODs) and quantification (LOQs) were in the range of 0.04–0.14 μg L⁻¹ and 0.13–0.46 μg L⁻¹, respectively, while relative standard deviations (RSDs) ranged from 2.10% to 5.90%. The thin film retained 95 ± 1.5% of its initial extraction efficiency after 36 extraction/desorption cycles, demonstrating excellent reusability. The method was successfully applied to fruit and vegetable samples, providing recoveries higher than 89.00% with negligible matrix effects. Analytical Greenness Metric for Sample Preparation (AGREEprep) (0.80) and Blue Applicability Grade Index (BAGI) (72.50) assessments confirmed the excellent green and practical characteristics of the proposed method.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103624"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Room-temperature chitosan-assisted in situ formation of silver nanoparticles on citric-acid-functionalized cotton for wash-durable antibacterial activity","authors":"A. D'Agostino,&nbsp;S. Facchiano,&nbsp;C. Vineis,&nbsp;M. Hadhri,&nbsp;R. Palucci Rosa,&nbsp;G. Rosace,&nbsp;A. Safarshargh,&nbsp;V. Trovato","doi":"10.1016/j.rechem.2026.103615","DOIUrl":"10.1016/j.rechem.2026.103615","url":null,"abstract":"<div><div>Antibacterial textiles are increasingly investigated to mitigate microbial proliferation and improve hygiene, particularly in healthcare and protective applications. Here, a simple water-based, partly bio-based three-step strategy is presented to fabricate laundering-durable antibacterial cotton <em>via</em> citric-acid pre-functionalization and chitosan-assisted <em>in situ</em> formation of silver nanoparticles (AgNPs). Cotton fabrics were first grafted with citric acid to introduce carboxyl-binding sites, then loaded with Ag⁺ from AgNO₃, and finally treated with chitosan, which served as a bio-based reducing and stabilizing agent enabling the formation of AgNPs at room temperature. CIE L*a*b* colorimetric analysis revealed formulation-dependent variations in lightness and chromaticity consistent with optical effects associated with AgNPs. SEM-EDX confirmed a homogeneous distribution of Ag-rich surface domains on the fibre surface, while FTIR and Raman spectroscopy indicated preservation of the main cellulose fingerprints, suggesting limited alteration of fibre chemistry. The functionalized fabrics exhibited &gt;99% antibacterial activity against <em>Staphylococcus aureus</em> and <em>Escherichia coli</em> in the unwashed state, with selected formulations retaining &gt;95% efficacy after 10 standardized laundering cycles. Overall, this bio-based approach, enabling AgNPs formation at room temperature, offers a practical route to durable antibacterial cotton with high wash fastness, making it a promising candidate for a wide range of applications across fields such as health and medicine.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103615"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable ionic liquid [CMMIM][BF4]-catalyzed one-pot multicomponent synthesis of spiro pyran-fused ninhydrin derivatives: Molecular docking, DFT, and in silico pharmacokinetics evaluation","authors":"Shital Mohurle,&nbsp;Venkatesan Kali,&nbsp;Barnali Maiti","doi":"10.1016/j.rechem.2026.103625","DOIUrl":"10.1016/j.rechem.2026.103625","url":null,"abstract":"<div><div>Herein, we report a highly efficient one-pot multicomponent methodology for the synthesis of spiro pyran-fused ninhydrin derivatives, using 5 mol% Brønsted acid ionic liquid catalyst [CMMIM][BF₄]. The reaction was carried out in a one-pot using ninhydrin, malononitrile, and substituted diketones in an ethanol-water medium at 80 °C, affording the spiro pyran-fused ninhydrin derivatives within 20–30 min in yields of up to 95%. Under these parameters, a total of six spiro pyran-fused ninhydrin derivatives were successfully synthesized in 20–30 min in an ethanol-water medium with excellent yields. All synthesized derivatives were characterised by ¹H NMR, ¹³C NMR, FT-IR spectroscopy and photophysical properties were performed using UV–Visible and fluorescence spectroscopy, displaying absorption and emission maxima within the 296–307 nm and 593–614 nm, respectively. The electronic transitions, absorption behaviour, and oscillator strength were further analyzed by using DFT and TD-DFT calculations. In addition, we have conducted in-depth molecular and in silico assessments. This methodology stands out as a simple and sustainable approach toward the spiro pyran-fused ninhydrin derivatives while minimizing environmental impact and potential biological activity.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103625"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and validation of new HSS-UPLC-ESI-MS/MS method for simultaneous quantification of organophosphate and pyrethroid pesticide metabolites in human urine","authors":"Kaoutar Chbihi,&nbsp;Aziza Menouni,&nbsp;Imane Berni,&nbsp;Hala Chetouani,&nbsp;Robin Lebegge,&nbsp;Eline Verscheure,&nbsp;Jeroen Vanoirbeek,&nbsp;Radu-Corneliu Duca,&nbsp;Samir El Jaafari,&nbsp;Lode Godderis","doi":"10.1016/j.rechem.2026.103645","DOIUrl":"10.1016/j.rechem.2026.103645","url":null,"abstract":"<div><div>Organophosphates and pyrethroids are widely used pesticides in agriculture and might severely affect human health. For the biomonitoring of pesticides, sensitive and accurate analytical methods are essential, yet methods for simultaneous detection and quantification are limited. We present a newly developed and validated Ultra-Performance Liquid Chromatography coupled with tandem Mass Spectrometry (UPLC-MS/MS) method that leverages the capabilities of the UPLC HSS T₃ column to accurately quantify, in human urine, metabolites of commonly used pesticides with different polarities. The targeted metabolites include malathion dicarboxylic acid (MDA), 3,5,6-trichloro-2-pyridinol (TCPy), 3-phenoxybenzoic acid (3-PBA), and 4-fluoro-3-phenoxybenzoic acid (4-F-3-PBA). Analytes were identified by selecting specific ion transitions within a defined retention time window. Solid-phase extraction was employed for sample clean-up, utilizing Oasis HLB cartridges as the sorbent and acetonitrile as the elution solvent. Method validation included the assessment of selectivity, linearity, sensitivity, stability, carry-over, accuracy, precision, recovery, and matrix effect. Method optimization resulted in recovery rates ranging from 60% to 113%, accuracy within 80–120%, and a relative rtandard deviation (RSD) below 20% at the lower limit of quantification (LLOQ) for the majority of analytes. The established LLOQs were 0.5 μg L⁻¹ for MDA and 3-PBA, and 0.25 μg L⁻¹ for TCPy and 4-F-3-PBA. Finally, the method was applied to a batch of 26 urine samples from Moroccan farmworkers, resulting in detection frequencies that exceeded 80% for all targeted metabolites. Our method demonstrated high sensitivity in simultaneous quantification of pesticide metabolites, and showed successful applicability to field urine samples, supporting its potential use in human biomonitoring studies.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103645"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sonochemical syntheses of a nano lead (II) coordination compounds: Hirshfeld surface analyses, NCI–RDG, thermal, optical properties and structural characterization","authors":"Gholam Hossein Shahverdizadeh,&nbsp;Elham Ghavidelaghdam,&nbsp;Reza Ahmadzadeh Farrokhi","doi":"10.1016/j.rechem.2026.103600","DOIUrl":"10.1016/j.rechem.2026.103600","url":null,"abstract":"<div><div>In this study, a new lead(II) coordination complex, [Pb(Neo)(TCA)₂], was synthesized using both a branched tube diffusion method to obtain single crystals and a sonochemical route to produce its nanostructured form. The crystalline phase of the complex was confirmed by single-crystal X-ray diffraction, revealing a monoclinic system (<em>C2/c</em> space group) with a distorted six-coordinate PbN₂O₄ geometry, influenced by the stereoactive lone pair of Pb(II). Nanostructures were prepared under ultrasonic irradiation, and their morphology was found to be strongly dependent on precursor concentrations, yielding particle sizes ranging from 64 to 100 nm as observed by SEM. The XRD patterns of the bulk and nanostructured samples closely matched, confirming identical phases with an average crystallite size of approximately 66.9 nm. Thermal analyses (TGA/DTA) demonstrated that the nanostructured form decomposes at slightly lower temperatures compared to the bulk material, due to its higher surface energy. Optical studies revealed that both forms exhibit π → π* transitions, with a slight blue shift in the absorption and emission spectra for the nanoparticles, consistent with size-dependent optical behavior. Controlled thermal decomposition of the nanostructured complex produced orthorhombic PbO nanoparticles with an average size of ∼59 nm. Furthermore, Hirshfeld surface analysis, interaction energy calculations, and NCI-RDG analysis provided detailed insights into the intermolecular interactions governing crystal packing and supramolecular architecture.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103600"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixed-ligand Сu(II) complex based on m-hydroxybenzoate and nicotinamide: Synthesis, crystal structure and Hirshfeld surface analysis","authors":"Rakhila Kurbanova,&nbsp;Shodlik Hasanov,&nbsp;Zubayda Abdullaeva,&nbsp;Farhod Khallokov,&nbsp;Tukhtapashsha Abdurakhmonova,&nbsp;Shakhnoza Kadirova,&nbsp;Abdullo Ahadov,&nbsp;Djakhangir Djabberganov","doi":"10.1016/j.rechem.2026.103644","DOIUrl":"10.1016/j.rechem.2026.103644","url":null,"abstract":"<div><div>A mixed-ligand Cu(II) complex containing m-hydroxybenzoate and nicotinamide ligands was synthesized and characterized by elemental analysis, FTIR spectroscopy, UV–visible spectroscopy, single-crystal X-ray diffraction and Hirshfeld surface analysis. Single-crystal X-ray diffraction revealed that the complex crystallizes in the monoclinic system with space group P2₁/n. The Cu(II) center adopts a distorted octahedral coordination environment formed by carboxylate oxygen atoms from m-hydroxybenzoate ligands, pyridine nitrogen atoms from nicotinamide ligands, and coordinated water molecules. FTIR analysis confirmed deprotonation of the carboxylic acid group and coordination of the carboxylate group in a monodentate mode, while the spectral shift of pyridine-ring vibrations indicated coordination of nicotinamide through the pyridine nitrogen atom. UV–visible spectral changes further supported complex formation and the modification of the ligand's electronic environment upon coordination to Cu(II). The crystal packing is stabilized by O–H···O and N–H···O hydrogen bonds involving hydroxyl and amide groups, as well as coordinated water molecules. Hirshfeld surface and fingerprint analyses indicated that H···H and O···H/H···O contacts make the largest contributions to the supramolecular architecture, with O···H/H···O interactions corresponding to the principal hydrogen-bonding contacts. These results provide structural insight into the coordination behavior and supramolecular organization of Cu(II) mixed-ligand complexes based on hydroxybenzoate and nicotinamide ligands.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103644"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyphenols from Trapa bispinosa Roxb. pericarp extract with inhibitory activities against amyloid-β aggregation and acetylcholinesterase","authors":"Yuji Iwaoka,&nbsp;Miharu Matsuura,&nbsp;Chisa Hayakawa,&nbsp;Yoshiaki Amakura,&nbsp;Morio Yoshimura,&nbsp;Tomohiro Uemura,&nbsp;Hideyuki Ito","doi":"10.1016/j.rechem.2026.103617","DOIUrl":"10.1016/j.rechem.2026.103617","url":null,"abstract":"<div><div>This study focused on the isolation and structural characterization of three known galloyl glucoses (<strong>1</strong>, <strong>3</strong>, and <strong>4</strong>) and a new monomeric ellagitannin, trabisnin (<strong>16</strong>), from the <em>Trapa bispinosa</em> Roxb. pericarp extract (TBPE). The extract was rich in hydrolyzable tannins, including ellagitannins and gallotannins, along with other polyphenols. The structure of compound <strong>16</strong> was elucidated as an ellagitannin bearing a brevifolincarboxyloyl group based on comprehensive spectroscopic analyses—1D and 2D nuclear magnetic resonance, electrospray ionization mass spectrometry—and supporting chemical evidence. To explore the potential of polyphenols in TBPE for the prevention or treatment of Alzheimer's disease (AD), the inhibitory activities of TBPE polyphenols and related compounds, including hydrolyzable tannin metabolites, against amyloid-β (Aβ) aggregation and acetylcholinesterase (AChE) were also investigated. Among the tested compounds, 1,2,4,6-tetra-<em>O</em>-galloyl-β-<span>d</span>-glucose (<strong>10</strong>), 1,2,3,4,6-penta-<em>O</em>-galloyl-β-<span>d</span>-glucose (<strong>11</strong>), tellimagrandin II (<strong>13</strong>), eschweilenol A (<strong>18</strong>), rubuphenol (<strong>19</strong>), and valoneic acid dilactone (<strong>20</strong>) exhibited strong inhibitory effects on both Aβ aggregation and AChE. Among the metabolites of hydrolyzable tannins, gallic acid (<strong>21</strong>) and urolithin A (<strong>25</strong>) showed the most potent inhibition of Aβ aggregation and AChE, respectively. Kinetic analyses using Lineweaver–Burk plots revealed that compounds <strong>11</strong> and <strong>20</strong>, potent AChE inhibitors, exhibit noncompetitive type inhibition. These findings suggest that TBPE polyphenols may serve as promising functional ingredients for the prevention or management of AD.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103617"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of the Ni/Mo bimetal ratio in regulating structural and bifunctional properties of pillared bentonite for hydrocracking of palm oil decanter cake","authors":"Siska Nuri Fadilah,&nbsp;Wahyu Setiawan,&nbsp;Zainal Fanani,&nbsp;Muhammad Faizal,&nbsp;Fakhili Gulo","doi":"10.1016/j.rechem.2026.103638","DOIUrl":"10.1016/j.rechem.2026.103638","url":null,"abstract":"<div><div>Utilization of biomass waste as a renewable energy source is a promising strategy to reduce dependence on fossil fuels while supporting sustainable waste management. Palm oil decanter cake (PODC), a major by-product of the palm oil industry, contains a high lipid fraction and is therefore a promising feedstock for hydrocracking into liquid biofuels. In this study, Ni<img>Mo bimetallic catalysts supported on Al-pillared bentonite (BPILC) were synthesized via wet co-impregnation with varying Ni/Mo ratios and applied for PODC hydrocracking. The catalysts were characterized using XRD, FTIR, SEM–EDX, XPS, BET–BJH, TGA, and acidity analyses. The results showed that the Ni/Mo ratio strongly affected the pore structure, metal dispersion, acidity, and metal–support interactions of the catalysts. Ni15Mo5/BPILC exhibited the most favourable textural characteristics, including the largest average pore diameter (16.43 nm), highest pore volume (0.5939 cm³/g), and relatively higher acidity (3.19 mmol/g), together with more accessible Lewis and Brønsted acid sites. These properties enhanced reactant accessibility and promoted more effective hydrocracking of PODC-derived heavy hydrocarbons. Ni15Mo5/BPILC achieved the highest PODC conversion of 72% and promoted selectivity toward light hydrocarbon fractions, with approximately 62% of the liquid products distributed within the C₅–C₁₆ range. These findings demonstrate that optimising the Ni/Mo ratio is important for controlling the structural and bifunctional properties of pillared clay-based catalysts for biomass hydrocracking applications.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103638"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Biocompatible broccoli-shaped multi-metal oxide: Chitosan hybrids for sensitive room-temperature hydrogen tracking with potential implications for non-invasive health monitoring”","authors":"A.Sai Neetha,&nbsp;K.Venkateswara Rao","doi":"10.1016/j.rechem.2026.103598","DOIUrl":"10.1016/j.rechem.2026.103598","url":null,"abstract":"<div><div>The development of high-performance, room-temperature hydrogen sensors remains a critical challenge for the realization of non-invasive, wearable diagnostic platforms for gastrointestinal diseases (GIDs). Here, we report a biomimetic assembly strategy utilizing a chitosan biopolymer scaffold to direct the growth of hierarchical, “broccoli-shaped” metal oxide nanocomposites (AgO, ZnO, NiO). In this study, a room-temperature hydrogen gas sensor was developed using metaloxide chitosan nanocomposites (MOC-NPs), where M = Ag, Ni, or Zn, and their performance was compared with previously reported CuO–chitosan composites. Hydrogen levels above 10–20 ppm in exhaled breath are recognized as biomarkers of GIDs, while lower levels indicate a healthy state. The sensing performance was evaluated using Metrohm DropSens WECS (working electrode on ceramic substrate) and WEFS (workingelectrode on the flexible plastic substrate) electrodes. Among the tested nanocomposites, AgO:Chitosan-A (1:2ratio) exhibited the best sensing performance, with a sensitivity of 4 ppm, a low limit of detection (LOD) of 0.6 ppm, and excellent linearity (R² = 0.9997). This enhanced behavior is attributed to AgO's large atomic radius (144 pm), +1 and + 3 oxidation states, and strong interaction with chitosan. When coated on a flexible WEFS substrate, AgO:Chitosan-A showed further improvement in response (201.962), reduced LOD (0.3 ppm), and faster response/recovery times (6 s / 8 s), indicating potential for real-time biomedical hydrogen sensing. The study also explores the impact of metal selection from Period IV (Ni, Cu, Zn) and Group IB (Cu,Ag), highlighting key factors influencing sensor performance.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103598"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-assisted synthesis of LiMn1.5Ni0.5O4 powders for Li-ion storage","authors":"T. Hedayat Mansouri,&nbsp;S.M. Masoudpanah,&nbsp;H. Nasrinpour","doi":"10.1016/j.rechem.2026.103630","DOIUrl":"10.1016/j.rechem.2026.103630","url":null,"abstract":"<div><div>LiMn_1.5Ni_0.5O₄ powders with a sheet-like morphology were synthesized using a solution combustion method with microwave heating. The effects of the polyvinylpyrrolidone (PVP) fuel-to-oxidizer ratio on the electrochemical features of LiMn_1.5Ni_0.5O₄ were evaluated through several types of characterization. X-ray diffraction patterns indicated that single-phase and well-crystallized LiMn₁.₅Ni₀.₅O₄ powders could be quickly produced after calcination at 600 °C. With higher PVP content, the morphology changed from particulate to sheet-like, while porous microstructure formation led to a substantial increase in specific surface area from 2 to 45 m² g⁻¹. As for the electrochemical performance, the LiMn_1.5Ni_0.5O₄ powders exhibited moderate rate capability (100 mAh g⁻¹ at 0.1C and 68 mAh g⁻¹ at 1C) and superb cycling stability (99.6%) after 500 charge/discharge cycles at 0.5C.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"28 ","pages":"Article 103630"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148641062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}