ChemNanoMat最新文献_第2页

Multicomponent and Hierarchical Ni(OH)2/NiFe2O4/Ni3S2 Nanosheets on Nickel Foam for Seawater Electrolysis 泡沫镍海水电解用多组分分层Ni(OH)2/NiFe2O4/Ni3S2纳米片

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-08 DOI: 10.1002/cnma.202500137

Menghan Zhao, Heng Sun, Meiyue Li, Yanshang Gong, Zhou Lu, Ding Yuan, Lixue Zhang, Jiankun Sun

{"title":"Multicomponent and Hierarchical Ni(OH)2/NiFe2O4/Ni3S2 Nanosheets on Nickel Foam for Seawater Electrolysis","authors":"Menghan Zhao, Heng Sun, Meiyue Li, Yanshang Gong, Zhou Lu, Ding Yuan, Lixue Zhang, Jiankun Sun","doi":"10.1002/cnma.202500137","DOIUrl":"https://doi.org/10.1002/cnma.202500137","url":null,"abstract":"Developing highly efficient, durable, and easily available noble-metal electrocatalysts is crucial for large-scale seawater electrolysis but remains a challenge. Here, we report a high-performance oxygen evolution reaction (OER) catalyst, Ni(OH)2/NiFe2O4/Ni3S2@NF, synthesized through a simple one-step hydrothermal method, showcasing a low overpotential of 413 mV at a large current density of 1000 mA cm−2, coupled with excellent stability at an industrial current density of 500 mA cm−2 for over 100 h in alkaline natural seawater solution. Such excellent OER performance is attributed to the abundant component and hierarchical architecture of Ni(OH)2/NiFe2O4/Ni3S2@NF catalyst, featuring 3D porous structure of interconnected nanosheets array, which endows more active sites and promotes efficient mass transport, further significantly enhancing catalytic activity and reaction kinetics. The anion exchange membrane water electrolyzer (AEMWE), featuring a Ni(OH)2/NiFe2O4/Ni3S2@NF anode and a MoNi@NF cathode, exhibits exceptional activity and stability in alkaline seawater, achieving an industrial current density of 1000 mA cm−2 at a low cell voltage of 2.35 V. This work offers valuable insights for the development of cost-effective and robust OER electrocatalysts suitable for stable operation in harsh seawater electrolysis systems.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255882","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

Bamboo-Based Carbon Fiber/Carbon Nanosheet Composite Flexible Supercapacitor 竹基碳纤维/碳纳米片复合柔性超级电容器

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-04 DOI: 10.1002/cnma.202500037

Kezheng Gao, Manpeng Qi, Zihao Chen, Qingyuan Niu, Qiheng Tang, Xiankai Sun, Lizhen Wang

{"title":"Bamboo-Based Carbon Fiber/Carbon Nanosheet Composite Flexible Supercapacitor","authors":"Kezheng Gao, Manpeng Qi, Zihao Chen, Qingyuan Niu, Qiheng Tang, Xiankai Sun, Lizhen Wang","doi":"10.1002/cnma.202500037","DOIUrl":"https://doi.org/10.1002/cnma.202500037","url":null,"abstract":"The primary factors affecting the performance of supercapacitors are ion diffusion, storage, and electron conduction. A unique composite structure combining elongated carbon fibers and void-filling carbon nanosheets can simultaneously enhance ion diffusion, storage, and charge conduction. Herein, bamboo fibers treated with delignification are used as raw materials. Through a simple chemical delignification process, followed by compression into sheets and carbonization, elongated carbon fiber/carbon nanosheet composite structures are prepared. Supercapacitors made with symmetric electrodes from these bamboo-based composite materials exhibit a specific capacitance of 97.2 F g−1 at a current density of 0.25 A g−1. The bamboo-based composite sheets demonstrate excellent flexibility and conductivity due to the stacking of carbon fibers and carbon nanosheets, forming abundant layered voids and a 3D network structure. This layered 3D network structure endows the PVA/H3PO4 gel electrolyte with excellent permeability. The bamboo-based carbon fiber/carbon nanosheet composite interdigitated flexible solid-state supercapacitor achieves an areal capacitance of 10.59 mF cm−2 at a current density of 5 μA cm−2 and retains 0.99 mF cm−2 even at 200 μA cm−2. After undergoing various folding angles and 200 folds, the CV curves of the interdigitated flexible solid-state supercapacitor show minimal changes in shape and enclosed area, demonstrating excellent flexibility and folding durability.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256129","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

Front Cover: (ChemNanoMat 4/2025) 封面：（ChemNanoMat 4/2025）

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-29 DOI: 10.1002/cnma.202580401

引用次数: 0

Single-Step Synthesis of FeNiCoSe Nanoarchitecture Electrode for Supercapacitor Performance 用于超级电容器性能的FeNiCoSe纳米结构电极的单步合成

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-04-28 DOI: 10.1002/cnma.202400635

Trupti Tanaya Mishra, Mohua Chakraborty, Chintak Kamalesh Parashar, Partho Sarathi Gooh Pattader, Franco Mayanglambam, Dhrubojyoti Roy

{"title":"Single-Step Synthesis of FeNiCoSe Nanoarchitecture Electrode for Supercapacitor Performance","authors":"Trupti Tanaya Mishra, Mohua Chakraborty, Chintak Kamalesh Parashar, Partho Sarathi Gooh Pattader, Franco Mayanglambam, Dhrubojyoti Roy","doi":"10.1002/cnma.202400635","DOIUrl":"https://doi.org/10.1002/cnma.202400635","url":null,"abstract":"The present study investigates the impact of incorporating iron (Fe) into nickel cobalt selenides (NiCoSe) to develop an advanced anode electrode material for supercapacitors. Multicomponent iron-nickel-cobalt-selenides (FeNiCoSe) nanostructures are synthesized using a single-step selenization process with varying iron content substituting nickel. The optimized FeNiCoSe, with 75% Fe substitution in NiCoSe electrode, demonstrates a high specific capacitance of 1442.2 F g−1 at current density of 1 A g−1 along with a long-term durability and 82.1% capacitance retention rate after 10,000 cycles. The electrode exhibits stable performance across a broad voltage range of 0.0–0.8 V. Brunauer–Emmett–Teller analysis reveals a specific surface area of 79.27 m2 g−1 and a pore diameter of 3.155 nm of the materials, indicating substantial surface area and porosity conducive to enhanced electrochemical activity. The incorporation of Fe into NiCoSe enhances the charge transfer and increases the availability of electroactive sites, leading to improved electronic conductivity and faster charge–discharge kinetics. The synergetic effect of multimetallic components is a key factor in achieving improved performance of the FeNiCoSe electrode material compared to bimetallic electrode materials NiCoSe and FeCoSe. The findings highlight the potential of FeNiCoSe electrode material as high-performance supercapacitors.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171288","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

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":"https://doi.org/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}

引用次数: 0

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":"https://doi.org/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}

引用次数: 0

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":"https://doi.org/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

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":"https://doi.org/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":"https://doi.org/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