Chemphyschem最新文献_第2页

Synthesis, Characterization and Cytotoxicity of Photochromic Molybdenum Oxide-Doped Tungsten Oxide Polymeric Nanohybrid Films for Biomedical Applications.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-24 DOI: 10.1002/cphc.202400987

Shephrah Olubusola Ogungbesan, Chao Zhou, Mulenga Kalulu, Oluwaseun Hannah Anselm, Adeyemi Lawrence Ogunneye, Rosemary Anwuli Adedokun, David Díaz Díaz, Guodong Fu

{"title":"Synthesis, Characterization and Cytotoxicity of Photochromic Molybdenum Oxide-Doped Tungsten Oxide Polymeric Nanohybrid Films for Biomedical Applications.","authors":"Shephrah Olubusola Ogungbesan, Chao Zhou, Mulenga Kalulu, Oluwaseun Hannah Anselm, Adeyemi Lawrence Ogunneye, Rosemary Anwuli Adedokun, David Díaz Díaz, Guodong Fu","doi":"10.1002/cphc.202400987","DOIUrl":"https://doi.org/10.1002/cphc.202400987","url":null,"abstract":"Despite the known nontoxicity, stability and efficiency of WO3 and MoO3 against microbes as a result of their catalytic activities, these oxides are not effective photocatalysts because the O2 absorbed cannot be reduced by the photogenerated electrons in their conduction band, which leads to the rebinding of electrons and holes on the surface. The doping of these two n-type semiconductor metal oxides and incorporation of a biocompatible, biodegradable and bioavailable polymer (such as chitosan) to form a film will, to a large extent, affect the surface area interaction and multipurpose applicability of the film as a therapeutic, controlled delivery and dual sensitive material. The WO3-NP, WO3MoO3 nanocomposites were synthesized via a deep eutectic solvent-assisted hydrothermal-based method, which afforded fine-sized nanoparticles and nanocomposites, which were further incorporated into a chitosan matrix to form nanohybrid films via the solvent casting method. The structural, optical and morphological characterization of the materials was carried out via XRD, FT-IR, UV, XPS, SEM, TEM, EDX and DLS. XRD and FT-IR analyses revealed that WO3MoO3 nanocomposites were successfully formed and incorporated into the chitosan matrix. The nanohybrid film showed antimicrobial activity with a minimum inhibitory concentration of 100 µg/mL. Furthermore, the nanohybrid film showed no significant toxicity.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400987"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluations of Highly Stable Derivatives of Polycyanated Tricyclic[10]annulene Anions as Efficient Halogen-Free Electrolyte for Lithium- and Sodium-ion Batteries.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-24 DOI: 10.1002/cphc.202401109

Mrinal Kanti Si, Yuta Hori, Yasuteru Shigeta

{"title":"Evaluations of Highly Stable Derivatives of Polycyanated Tricyclic[10]annulene Anions as Efficient Halogen-Free Electrolyte for Lithium- and Sodium-ion Batteries.","authors":"Mrinal Kanti Si, Yuta Hori, Yasuteru Shigeta","doi":"10.1002/cphc.202401109","DOIUrl":"https://doi.org/10.1002/cphc.202401109","url":null,"abstract":"Polycyanated tricyclic[10]annulene and the benzene derivatives, namely Polycyanated Rees hydrocarbons, exhibit properties of organic superacids in the gas phase because they generate highly stable anions after deprotonation. Stable anions can prospectively be used as electrolytes in lithium- and sodium-ion batteries (LIBs and NIBs, respectively). This study investigates the stability of polycyanated benzo-fused tricyclic[10]annulene anion and polycyanated tricyclic[10]annulene anion and discusses their potential as halogen-free electrolytes in LIBs and NIBs using density functional theory calculations. The calculated energy for binding of an electron to the polycyanated Rees hydrocarbon anions in the gas phase is larger than that of recently developed, efficient, halogen-free electrolytes. The binding energy of Li+ and Na+ with the polycyanated Rees hydrocarbon anions is smaller than that of the electrolyte B12H122-, as well as the currently used electrolytes, but is comparable to that of the electrolytes B12(CN)122- and CB11(CN)122-. The present calculations suggest that polycyanated Rees hydrocarbon anions can be used as halogen-free electrolytes in LIBs and NIBs. This study paves the way for the synthesis of stable anions derived from organic superacids with potential applications as halogen-free electrolytes in metal-ion batteries.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202401109"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical Screening of the Synergetic Eﬀect of Dual-Metal Atom Catalysts for Bifunctional ORR/OER.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-23 DOI: 10.1002/cphc.202401070

Feng Tan, Shuaikun Liu, Lihong Yang, Hao Cui, Chengxiong Wang, Jian Liu, Wenhui Ma, Chun-Gang Min, Wei Li, Yunkun Zhao, Feng Liu

引用次数: 0

Electrochemical Studies of SrTiO3/Reduced Graphene Oxide Composite For High-Power Energy Storage and Oxygen Evolution Reaction Applications.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-19 DOI: 10.1002/cphc.202500038

Binson Babu, Dushyant K Sharma, Salahuddeen Buhari, Divyanshi Soni, Susanta S Roy

{"title":"Electrochemical Studies of SrTiO3/Reduced Graphene Oxide Composite For High-Power Energy Storage and Oxygen Evolution Reaction Applications.","authors":"Binson Babu, Dushyant K Sharma, Salahuddeen Buhari, Divyanshi Soni, Susanta S Roy","doi":"10.1002/cphc.202500038","DOIUrl":"https://doi.org/10.1002/cphc.202500038","url":null,"abstract":"Strontium titanium perovskite oxide (SrTiO3, STO) has emerged as a promising material for energy applications, but its insulating nature limits its performance. In this study, we developed a hierarchical structure of STO particles (600-700 nm) anchored onto reduced graphene oxide (rGO) and evaluated their dual functionality in energy storage and water-splitting applications. The STO-rGO composites exhibited enhanced high-power electrochemical performance in aqueous electrolytes, driven by their large electrochemical surface area and non-diffusion-controlled charge storage process. Furthermore, symmetric supercapacitors and asymmetric supercapacitors fabricated with STO-rGO composites demonstrate excellent electrochemical performance, achieving stable cycling stability with 90% and 95% capacity retention after 10,000 cycles, respectively, highlighting the potential of STO-rGO composites as high-power electrodes. Additionally, STO-rGO composites demonstrated superior oxygen evolution reaction (OER) activity, with a low overpotential of 303 mV, high mass activity, and an improved turnover frequency (TOF) compared to pristine STO, with better long-term cycling stability, retaining performance after a 24-hour chronopotentiometry test at a current density of 10 mA cm⁻². This work demonstrates the dual functionality of strontium-based perovskite materials for energy storage and water-splitting applications, with significantly enhanced performance achieved through the incorporation of reduced graphene oxide.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202500038"},"PeriodicalIF":2.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143656303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Transition Metal Disulfide Nano-dots via Hydroxyl Radicals-mediated Cutting Metal-Sulfur Bonds.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-19 DOI: 10.1002/cphc.202500098

Peng Yang, Anpeng Hu, Qinghe Yang

{"title":"Preparation of Transition Metal Disulfide Nano-dots via Hydroxyl Radicals-mediated Cutting Metal-Sulfur Bonds.","authors":"Peng Yang, Anpeng Hu, Qinghe Yang","doi":"10.1002/cphc.202500098","DOIUrl":"https://doi.org/10.1002/cphc.202500098","url":null,"abstract":"The preparation of low-dimensional transition metal disulfides (MS2, M = Mo, W) via ultrasonication-assisted liquid-phase exfoliation from mineral bulk-MS2 is proven to be advantageous in terms of sulfurizing reagent-free conditions and operational safety. Nevertheless, mechanical energy input is insufficient to effectively cut metal-sulfur bonds to form small-sized MS2 nano-dots. Herein, we develop an innovative strategy based on hydroxyl radicals-mediated cutting metal-sulfur bonds to prepare MS2 nano-dots with lateral dimension of 10 nm and height of 2 nm, through ultrasonication treatment of bulk-MS2 in the presence of a mixture of ammonium citrate/N-Methylpyrrolidone ((NH4)3CA/NMP). A pivotal aspect of this strategy is the in-situ generation of hydroxyl radicals from citrate ions (CA3-), which can effectively cut metal-sulfur bonds of the submicron-sized sheet that was as-exfoliated by NMP. Furthermore, the introduced CA3- adsorbs onto the surfaces of MS2 nano-dots, preventing their re-aggregation in the disperse system. This work provides a facile strategy for the direct preparation of metal disulfide nano-dots from their bulk-minerals.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202500098"},"PeriodicalIF":2.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical Study on the Structure and Spectral Characteristics of Three Boron-doped Fullerene C27B Isomers and Their Newly Synthesized Uranium-embedded Derivatives.

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-17 DOI: 10.1002/cphc.202401125

Tao Gao, Ting Wang, Yuling Wang, Jiayuan Qi

引用次数: 0

Cover Feature: Interplay between Spinmerism and Spin-Orbit Coupling for a d2 Metal Ion in an Open-Shell Ligand Field (ChemPhysChem 6/2025)

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-03-17 DOI: 10.1002/cphc.202580603

Pablo Roseiro, Ashini Shah, Saad Yalouz, Vincent Robert