ChemNanoMat最新文献_第9页

Preparation and Characterization of 5,5′-Bis(4′-Cyanobiphenyl-4-Yl)-2,2′-Bithiophene Nanocrystals Using an Ionic Liquid 用离子液体制备5,5 ' -双（4 ' -氰联苯-4-基）-2,2 ' -双噻吩纳米晶体及表征

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-27 DOI: 10.1002/cnma.202500174

Andi Marwanti Panre, Hitoshi Mizuno, Tomomi Jinjyo, Hiroyuki Katsuki

{"title":"Preparation and Characterization of 5,5′-Bis(4′-Cyanobiphenyl-4-Yl)-2,2′-Bithiophene Nanocrystals Using an Ionic Liquid","authors":"Andi Marwanti Panre, Hitoshi Mizuno, Tomomi Jinjyo, Hiroyuki Katsuki","doi":"10.1002/cnma.202500174","DOIUrl":"10.1002/cnma.202500174","url":null,"abstract":"A novel preparation method using an ionic liquid (IL) (1-hexadecyl-3-methylimidazolium chloride) is developed to control size and prevent agglomeration during the fabrication of nanocrystals (NCs) of 5,5′-bis(4′-cyanobiphenyl-4-yl)-2,2′-bithiophene (BP2T-CN), a type of thiophene/phenylene co-oligomers (TPCOs). BP2T-CN NCs with sizes ranging from 86 to 550 nm are prepared by changing the concentration of the IL in an improved reprecipitation technique. Photoluminescence (PL) and absorption measurements reveal blue-shifts in PL and absorption bands with decreasing NC size, attributing to the site-shift effect. The energies of PL and absorption bands vary between the energies of bulk crystal and monomer state. PL spectra of BP2T-CN NCs (550, 260, and 86 nm) measured under atmospheric and vacuum conditions show small peak energy changes (9.61–12.8 meV) due to surface effects. Under vacuum conditions, NCs of 550 nm (without IL) exhibits 1.6–2.5 times longer PL decay times, while NCs of 260 nm (with 11 mM IL) and 86 nm (with 27 mM IL) show 0.8–1.1 times longer constants. These smaller changes in decay times under vacuum, caused by IL surface passivation, highlight that the method effectively suppresses NC aggregation and reduces surface effects.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into Heterogeneous Catalysis for the Hydroamination and Hydroaminomethylation Processes of Olefins 烯烃氢胺化和氢胺甲基化过程的多相催化研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-26 DOI: 10.1002/cnma.202500038

Hongqiao Lin, Weiping Ding, Yan Zhu

引用次数: 0

Identifying Superior Binding Sites for Lead Detection on Solvothermally Engineered Fluorescent Active Heteroatom-Doped Carbon Nanofibers 溶剂热工程荧光活性杂原子掺杂碳纳米纤维中铅检测的优越结合位点的确定

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-25 DOI: 10.1002/cnma.202500064

Mohit Kumar, Sahil, Abhishek Soni, Neeraj Gupta

{"title":"Identifying Superior Binding Sites for Lead Detection on Solvothermally Engineered Fluorescent Active Heteroatom-Doped Carbon Nanofibers","authors":"Mohit Kumar,  Sahil, Abhishek Soni, Neeraj Gupta","doi":"10.1002/cnma.202500064","DOIUrl":"10.1002/cnma.202500064","url":null,"abstract":"Aiming to decipher the role of optimum binding site for detection of lead ions, fluorescent active heteroatom-doped carbon nanofibers-based materials (O-CNF, N-CNF, sulfur-containing material (S-CNF), and NS-CNF) are fabricated solvothermally. The S-CNF exhibits highest detection efficiency for fluorescent sensing of lead ions as compared to other materials. The S-CNF detects lead ions with 5.99 μM detection limit in a concentration range of 0–40 μM. FESEM and HRTEM analysis of S-CNF reveals the hybrid morphology, where spherical units formed from elemental sulfur are aggregated on the surface of carbon nanofibers. X-ray diffraction pattern reveals amorphous nature of the material, and incorporation of sulfur atom is confirmed through X-ray photoelectron spectroscopy. Various functional groups such as >CO, ROR, COOH, SO, SS, CSC, and CS are found to be present in S-CNF. The binding sites for the lead ions are confirmed by adsorbing the metal ions on S-CNF surface that are clearly seen on FESEM–EDS analysis. The final proof for the involvement of SO and other sulfur-bearing functional groups (SS, CSC, and CS) is performed by Fourier-transform infrared spectroscopy. The investigation clarifies role of various oxygen-, nitrogen-, and sulfur-containing functional groups for the efficient removal of toxic lead metal in contaminated water samples.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Size-Tailored Polyvinylpyrrolidone–Au Nanoparticles on Ni–Fumarate Metal-Organic Frameworks for Dual Dopamine and Paracetamol Sensing: A Density-Functional Theory–Assisted Study 尺寸定制的聚乙烯吡咯烷酮-金纳米颗粒在镍-富马酸盐金属-有机框架上用于双多巴胺和对乙酰氨基酚的传感：密度功能理论辅助研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-22 DOI: 10.1002/cnma.202500118

Feng Zhou, Hong Ngee Lim, Izwaharyanie Ibrahim, Muhammad Asri Abdul Sisak, Yi Liu, Danfeng Qin

{"title":"Size-Tailored Polyvinylpyrrolidone–Au Nanoparticles on Ni–Fumarate Metal-Organic Frameworks for Dual Dopamine and Paracetamol Sensing: A Density-Functional Theory–Assisted Study","authors":"Feng Zhou, Hong Ngee Lim, Izwaharyanie Ibrahim, Muhammad Asri Abdul Sisak, Yi Liu, Danfeng Qin","doi":"10.1002/cnma.202500118","DOIUrl":"10.1002/cnma.202500118","url":null,"abstract":"Herein, the application of nickel–fumarate metal-organic frameworks (Ni-fum MOFs) adorned with gold nanoparticles (AuNPs) as a promising platform for the sensitive detection of dopamine (DA) and paracetamol (PA) in aqueous solutions is explored. The AuNPs are incorporated into the Ni–fumarate MOF composite, resulting in a novel composite biosensor, PVP–Au/Ni–fum MOF. The enhanced signal transmission capacity for DA and PA is also attributed to the strong interface between Ni–fum MOFs and AuNPs. Interestingly, this unique interface exhibits distinct catalytic properties for the redox reactions of DA and PA, thereby widening the oxidation potential discrepancy between them. The Au/Ni–fum MOF electrode displays well-resolved cyclic voltammetry peak potentials of 95.2 mV for DA and 207.5 mV for PA, with respective limit of detections of 0.0078 and 0.01 μM, respectively. In parallel, density-functional theory is employed to investigate the adsorption behavior of DA and PA on these composite materials. These results indicate enhanced adsorption energies and shorter bond lengths for the simultaneous detection of DA and PA on these composite surfaces, pointing toward the potential for dual analyte sensing. This research advances the development of advanced sensors, offering improved selectivity and sensitivity, and underscores the utility of MOFs in electrochemical sensor applications.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Low-Temperature Growth of AgBr Nanoplates via Concerted Etching and Redeposition Processes 协同蚀刻和再沉积工艺制备AgBr纳米片的研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-21 DOI: 10.1002/cnma.202500097

Yudai Serizawa, Shin-ichi Naya, Hisashi Sugime, Tetsuro Soejima

{"title":"Low-Temperature Growth of AgBr Nanoplates via Concerted Etching and Redeposition Processes","authors":"Yudai Serizawa, Shin-ichi Naya, Hisashi Sugime, Tetsuro Soejima","doi":"10.1002/cnma.202500097","DOIUrl":"10.1002/cnma.202500097","url":null,"abstract":"Inorganic nanocrystals with sophisticated shape control can be synthesized by considering not only crystal growth but also etching process. Herein, a shape control method involving an etching process at low temperature for AgBr nanocrystal, an excellent visible-light responsive material, is reported. The addition of polyvinylpyrrolidone (PVP) to an aqueous solution containing excess Br− ions in which irregularly shaped AgBr nanoparticles are dispersed transforms the nanoparticles into nanoplates at room temperature. Detailed electron microscopic observations of the shape during transformation and quantitative analyses of the Ag+ ion concentration reveal preferential etching of {111} planes of the irregularly shaped nanoparticles and subsequent redeposition of AgBr on other crystalline planes, resulting in the formation of nanoplates. The obtained AgBr nanoplates show higher visible-light photocatalytic activity than irregularly shaped nanoparticles, since nanoplates are almost enclosed by {111} planes with active catalytic reaction sites.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202500097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Post-Annealing Induced Interdiffusion Layer Enhancing the Stability and Electrochemical Properties of LiCoO2 Thin Film Battery 后退火诱导扩散层提高LiCoO2薄膜电池的稳定性和电化学性能

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-21 DOI: 10.1002/cnma.202500057

Sanjaya Brahma, Ting-Wei Huang, Yi-Xiu Chen, Jow-Lay Huang, Chuan-Pu Liu

{"title":"Post-Annealing Induced Interdiffusion Layer Enhancing the Stability and Electrochemical Properties of LiCoO2 Thin Film Battery","authors":"Sanjaya Brahma, Ting-Wei Huang, Yi-Xiu Chen, Jow-Lay Huang, Chuan-Pu Liu","doi":"10.1002/cnma.202500057","DOIUrl":"10.1002/cnma.202500057","url":null,"abstract":"Recently, thin film batteries without binder are an important power supplier for many low-power microelectronic devices due to their compact size, flexibility for integration. The significance of the post-annealing process in enhancing the stability of the electrodes in a “thin film battery” is investigated. The LiCoO2 (LCO) film annealed at 600 °C for 4 h exhibited the higher first cycle charge (discharge) capacity of 102.5 mAhg−1 (80 mAhg−1), initial coulombic efficiency of 78.04%, as well as capacity retention of 59.37% at 0.2 C over 100 cycles as compared to the as-deposited LCO films. The enhanced battery performances are attributed to the enhanced physical and chemical stability of the annealed film to endure the structural and composition evolutions. Specifically, an interfacial layer of Li–Co–Al–O compound formed upon annealing, verified by elemental analysis along with transmission electron microscopy, resulting from the interdiffusion of Co and Al. The Li–Co–Al–O compound demonstrates higher chemical bonding capability, leading to higher stability performance and longer battery lifetime, even unfavorable for electronic conduction. Apparently, this work inspires the next-generation high-power battery systems to reflect the trade-off study of electrochemical performance and stability of batteries.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibacterial Activity of Textiles Functionalized with SilverSil 银功能化纺织品的抗菌活性研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-21 DOI: 10.1002/cnma.202500132

Giovanna Li Petri, Serena Facchiano, Valentina Trovato, Claudia Vineis, Giuseppe Rosace, Mario Pagliaro, Rosaria Ciriminna

引用次数: 0

α-Fe2O3 Nanostructures: Bridging Morphology with Magnetic and Antimicrobial Properties α-Fe2O3纳米结构：具有磁性和抗菌性能的桥接形态

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-21 DOI: 10.1002/cnma.202500066

Ambati Mounika Sai Krishna, Nilja George, Vadupu Lavanya, Durgesh Kumar, Avinash Chaurasiya, Hasibur Rahaman, S. N. Piramanayagam, Rajdeep Singh Rawat, Goutam Kumar Dalapati, Writoban Basu Ball, Siddhartha Ghosh, Sabyasachi Chakrabortty

{"title":"α-Fe2O3 Nanostructures: Bridging Morphology with Magnetic and Antimicrobial Properties","authors":"Ambati Mounika Sai Krishna, Nilja George, Vadupu Lavanya, Durgesh Kumar, Avinash Chaurasiya, Hasibur Rahaman, S. N. Piramanayagam, Rajdeep Singh Rawat, Goutam Kumar Dalapati, Writoban Basu Ball, Siddhartha Ghosh, Sabyasachi Chakrabortty","doi":"10.1002/cnma.202500066","DOIUrl":"10.1002/cnma.202500066","url":null,"abstract":"Highly crystalline hematite (α-Fe2O3) nanostructures (NSs) with distinct morphology hold vital significance, not only for fundamental knowledge of magnetic properties but also offering potential applications from biomedical to data storage to semiconductor industry, etc. α-Fe2O3 NSs with various shapes are examined to reveal the intrinsic relationship between the shape anisotropy and magnetic properties. Herein, different morphologies of α-Fe2O3 NSs, such as spherical, cubic, plate-like, rhombohedral, and hexagonal bipyramid are synthesized, by controlled hydrothermal method. The impact of shape and size on the optical and structural characteristics through UV–vis absorption spectroscopy and X-ray diffraction is analyzed. Advanced nanomaterial techniques such as transmission electron microscopy are utilized to explore and confirm the morphology and size of NSs. Subsequently magnetic properties of the α-Fe2O3 NSs, such as magnetic saturation (Ms), coercivity (Hc), and remanent magnetization (Mr), are measured. Careful analysis of magnetic data reveals Morin transition around 200 K for cubic, plate-like, and rhombohedral samples, whereas the spherical and hexagonal bipyramid samples illustrate the superparamagnetic behavior in the temperature range of 150–300 K. Finally, the antibacterial characteristics of NSs against Escherichia coli using a microplate reader for monitoring the bacterial growth are investigated.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nickel Boride Supported on Graphitic Carbon Nitride as Robust and Efficient Catalyst for Transfer Hydrogenation of Nitroarenes 石墨氮化碳负载的硼化镍作为硝基芳烃转移加氢的稳健高效催化剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-20 DOI: 10.1002/cnma.202500117

Bharti Kashyap, Sahil Kumar, Devendra Sharma, Venkata Krishnan

{"title":"Nickel Boride Supported on Graphitic Carbon Nitride as Robust and Efficient Catalyst for Transfer Hydrogenation of Nitroarenes","authors":"Bharti Kashyap, Sahil Kumar, Devendra Sharma, Venkata Krishnan","doi":"10.1002/cnma.202500117","DOIUrl":"10.1002/cnma.202500117","url":null,"abstract":"Hydrogenation of nitroarenes to aromatic amines is an essential reaction in chemical synthesis, commonly employed in pharmaceutical and industrial applications. Typically, this transformation employs molecular hydrogen (H2) as a reducing agent, but its use comes with challenges, such as flammability, handling of high-pressure systems, sophisticated reaction setup, and so on all of which increase the costs and reduces the sustainability for large-scale operations. Catalytic transfer hydrogenation (CTH) presents a facile and simple alternative. Herein, a series of nickel boride (Ni3B) supported graphitic carbon nitride (GCN) are used as catalysts to convert aromatic nitroarenes to aromatic amines via transfer hydrogenation, using hydrazine hydrate as the hydrogen source. Among a series of different weight percentage of Ni3B on GCN catalysts, the sample with 25 wt% Ni3B, shows the highest activity in nitroarene hydrogenation. The reaction conditions are thoroughly optimized by varying various parameters, including temperature, time, catalyst loading, and hydrogen source amount. In addition, the optimized catalyst shows good recyclability and stability for four reaction cycles. These findings indicate that these catalysts offer a promising solution for robust and efficient hydrogenation in organic synthesis, with potential applications in industry.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contact-Electro-Catalysis Enables Ultrasonic Synthesis of Gold Nanoparticles at Water–PTFE Interfaces 接触电催化使超声合成金纳米颗粒在水-聚四氟乙烯界面

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-20 DOI: 10.1002/cnma.202500050

Hui Yan, Xiaoxue Song, Shun Li, Jianhua Li, Jianming Zhang, Yuqiao Zhang, Long Zhang

{"title":"Contact-Electro-Catalysis Enables Ultrasonic Synthesis of Gold Nanoparticles at Water–PTFE Interfaces","authors":"Hui Yan, Xiaoxue Song, Shun Li, Jianhua Li, Jianming Zhang, Yuqiao Zhang, Long Zhang","doi":"10.1002/cnma.202500050","DOIUrl":"10.1002/cnma.202500050","url":null,"abstract":"The synthesis of gold nanoparticles (AuNP) using sustainable methods remains a significant challenge in nanotechnology. Traditional approaches often rely on toxic chemicals or complex procedures, leading to unavoidable environmental concerns. Herein, a novel, environmentally friendly method for preparing AuNP via contact-electro-catalysis (CEC) driven by ultrasonication at the water–dielectrics interfaces is presented. This strategy eliminates the need for external chemical reducing agents, making it a sustainable alternative for nanoparticle production. Under ultrasonic stimulation at 40 kHz and 150 W, polytetrafluoroethylene (PTFE) transfers electrons to AuCl4− ions, effectively reducing them to elemental gold. The mean size of AuNP increases from 74 to 220 nm as ultrasonication duration extends from 1 to 20 min, highlighting the impact of contact duration on nanoparticle growth. A comparative study of dielectric materials, including Nylon-6, polyvinylidene difluoride, and PTFE, reveals that PTFE with its higher electron affinity greatly outperforms other materials in facilitating the electron transfer necessary for the synthesis of AuNP. Additionally, the presence of H2O2 generated during the process also contributes to the reduction, further boosting AuNP synthesis. Herein, it offers insights into the influence of dielectric materials on CEC efficiency, providing a promising, scalable, and green alternative for nanoparticle production.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0