ChemNanoMat最新文献_第3页

Preparation of Lignocellulosic Nanofibrils Directly from Corn Straw Applied for the Stabilization of Pickering Emulsions 直接从玉米秸秆中制备木质纤维素纳米原纤维用于酸洗乳的稳定

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-09 DOI: 10.1002/cnma.202500098

Xuhai Zhu, Ruizhe Li, Yangbing Wen, Yuzhe Jin, Rongjun Lin, Rui Lu, Fang Lu

{"title":"Preparation of Lignocellulosic Nanofibrils Directly from Corn Straw Applied for the Stabilization of Pickering Emulsions","authors":"Xuhai Zhu, Ruizhe Li, Yangbing Wen, Yuzhe Jin, Rongjun Lin, Rui Lu, Fang Lu","doi":"10.1002/cnma.202500098","DOIUrl":"https://doi.org/10.1002/cnma.202500098","url":null,"abstract":"This study proposes a straightforward, cost-effective, and environmentally benign approach for the pretreatment of corn straw using alkaline cationization, followed by mechanical defibrillation to yield lignocellulosic nanofibrils (LCNF) as stabilizers of Pickering emulsions. Two distinct types of LCNFs (designated as LCNF-0.07 and LCNF-0.14) are obtained and characterized by a range of techniques. The charge density of these LCNFs is found to be 0.07 and 0.14 meq g−1, respectively. The findings demonstrate that continuous alkaline cationic pretreatment can effectively remove most hemicelluloses and lignin, thereby loosening the structure of the fiber cell wall and facilitating the subsequent nanofibrillation of the resulting cellulose-rich solid (lignocellulose). The diameters of individual LCNFs are typically in the range of 20–30 nm, exhibiting high aspect ratios, a fine web-like structure, high dispersion stability, and good thermal stability. Under optimal conditions, long-term emulsion stabilization is achieved with LCNF-0.14 at concentrations as low as 0.7 wt% and with a low oil fraction of up to 10%. This can be attributed to the Pickering stabilization achieved by irreversible adsorption of the LCNF at the oil–water interface (as evidenced by fluorescent microscopy) and subsequent formation of an interdroplet LCNF network in the continuous phase (as verified by scanning electron microscope images).","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256309","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

Modification of Graphitic Carbon Nitride/Pyromellitic Diimide as a Robust Fluorescent Probe for Silver Detection in Water 石墨氮化碳/焦二酰亚胺作为水中银检测荧光探针的改性研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-08 DOI: 10.1002/cnma.202400663

Soufian Chakir, Qiankun Xu, Yaru Li, Yu Ding, Ziteng Huang, Daosheng Sun, Yongfei Xu, Xianbiao Wang

{"title":"Modification of Graphitic Carbon Nitride/Pyromellitic Diimide as a Robust Fluorescent Probe for Silver Detection in Water","authors":"Soufian Chakir, Qiankun Xu, Yaru Li, Yu Ding, Ziteng Huang, Daosheng Sun, Yongfei Xu, Xianbiao Wang","doi":"10.1002/cnma.202400663","DOIUrl":"https://doi.org/10.1002/cnma.202400663","url":null,"abstract":"Silver ions (Ag+), though valuable in industry and medicine, become hazardous at high concentrations, requiring reliable monitoring in environmental media. In this study, a sensitive and selective fluorescent probe is developed by modifying a graphitic carbon nitride/pyromellitic diimide (g-C3N4/PDI, CNP) composite with dithiothreitol via a simple ring-opening reaction. The introduction of SH and OH groups improves the probe's water dispersibility and affinity for Ag+, enhancing its adsorption capacity and detection performance. This leads to a twofold increase in fluorescence intensity, significantly improved selectivity, and a 36% increase in the Stern–Volmer quenching constant (Ksv). Furthermore, the optimized probe exhibits excellent stability (relative standard deviation <1%) and a substantial decrease in the limit of detection from 7.59 to 1.38 μM, confirming its high sensitivity. This green, cost-effective, and easily prepared probe presents a promising solution for accurate and reliable Ag+ monitoring in environmental and complex matrices.","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":"144255883","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

Green Synthesis of Silver Nanoparticles from Amanita Pantherina Extracts by an Electrochemical Method 用电化学方法绿色合成黑金伞提取物中的纳米银

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-08 DOI: 10.1002/cnma.202400664

Hoa Thi Nguyen, Hue Thi Nguyen, Quang Huy Tran, Ngoc Huyen Nguyen, Phuong Dai Nguyen Nguyen, Phi Hung Nguyen, Le Minh Hoang, Dao Cuong To

{"title":"Green Synthesis of Silver Nanoparticles from Amanita Pantherina Extracts by an Electrochemical Method","authors":"Hoa Thi Nguyen, Hue Thi Nguyen, Quang Huy Tran, Ngoc Huyen Nguyen, Phuong Dai Nguyen Nguyen, Phi Hung Nguyen, Le Minh Hoang, Dao Cuong To","doi":"10.1002/cnma.202400664","DOIUrl":"https://doi.org/10.1002/cnma.202400664","url":null,"abstract":"This study presents an innovative electrochemical method for synthesizing silver nanoparticles (AgNPs) using ethanol, water, and ethyl acetate extracts of Amanita pantherina and evaluates their electrochemical properties and antibacterial activity. The electrochemical properties of the AgNPs are investigated using cyclic voltammetry and electrochemical impedance spectroscopy (EIS), revealing significant differences between the extracts. The oxidation current intensity for AgNPs synthesized using the ethanol extract (AgNP-ApENOL) is 9 μA, notably higher than those synthesized using water (AgNP-ApWTA) and ethyl acetate (AgNP-ApETA) extracts. Furthermore, the charge-transfer resistance and transport for AgNP-ApENOL are 2.5 and 2 times lower, respectively, compared to the other two extracts, suggesting enhanced electrochemical performance. In terms of antibacterial activity, AgNP-ApENOL exhibits the highest effectiveness, with the lowest minimum inhibitory concentration (MIC) values of 2.68 μg L−1 for Staphylococcus aureus and 1.34 μg L−1 for Escherichia coli, as well as the lowest minimum bactericidal concentration (MBC) values of 10.71 μg L−1 for S. aureus and 5.36 μg L−1 for E. coli. These results highlight the superior antibacterial activity of AgNP-ApENOL, making it a promising candidate for antibacterial applications.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598614","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

Reverse Micelle Synthesis of AuyNi100-y Nanoparticles Decorated Multiwalled Carbon Nanotubes as High-Performance Anode Electrocatalysts for Direct Borohydride-Hydrogen Peroxide Fuel Cells 修饰多壁碳纳米管的AuyNi100-y纳米颗粒反胶束合成作为硼氢化物-过氧化氢直接燃料电池高性能阳极电催化剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-08 DOI: 10.1002/cnma.202500005

Chandan Kumar Raul, Tuli Chatterjee, Monalisa Halder, Ranjita Sinha, Santanu Dey, Soumen Basu, Ajit Kumar Meikap

{"title":"Reverse Micelle Synthesis of AuyNi100-y Nanoparticles Decorated Multiwalled Carbon Nanotubes as High-Performance Anode Electrocatalysts for Direct Borohydride-Hydrogen Peroxide Fuel Cells","authors":"Chandan Kumar Raul, Tuli Chatterjee, Monalisa Halder, Ranjita Sinha, Santanu Dey, Soumen Basu, Ajit Kumar Meikap","doi":"10.1002/cnma.202500005","DOIUrl":"https://doi.org/10.1002/cnma.202500005","url":null,"abstract":"Cost-effective and efficient electrocatalysts for the borohydride oxidation reaction (BOR) are essential for improving the performance of direct borohydride-hydrogen peroxide fuel cells (DBHPFCs). In this work, AuNi nanoparticles decorated multiwalled carbon nanotubes (MWCNT) (AuNi/MWCNT) were synthesized via a reverse micelle method using sodium bis(2-ethylhexyl) sulfosuccinate at 303 K and applied as anode electrocatalysts for DBHPFCs. Various physicochemical and electrochemical characterization techniques were employed. Among the synthesized catalysts, Au50Ni50/MWCNT demonstrated superior performance, including a higher electrochemically active surface area (ECSA: 923 cm2 mg−1), turnover frequency (TOF: 0.21 s−1), peak current density (73 mA cm−2), lower activation energy (7.4 kJ mol−1), exchanged electron number (5.8), lower charge transfer resistance (47.66 ohms), highest stability, and the lowest poisoning rate (0.14 <math></math> 10−3% s−1) compared to Au100/MWCNT and others. DBHPFCs constructed with Au50Ni50/MWCNT as the anode and a Pt mesh (1 cm × 1 cm) as the cathode achieved a peak power density of 67.11 mW cm−2 and a current density of 70 mA cm−2 at 303 K. The exceptional electrocatalytic performance of the AuNi/MWCNT electrocatalyst offers valuable insights for developing innovative, cost-effective, and durable electrocatalysts for DBHPFC applications.","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":"144255887","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

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

Physicochemical and Surface Properties of Nanoparticles: Effects on Cellular Pathway and Uptake 纳米粒子的物理化学和表面性质：对细胞通路和摄取的影响

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-01 DOI: 10.1002/cnma.202500043

Jia Zhang, Rongrong Liu, Ze Yang, Canghai Luo, Jingyi Chen, Baoling Guo, David A. Weitz, Dong Chen

{"title":"Physicochemical and Surface Properties of Nanoparticles: Effects on Cellular Pathway and Uptake","authors":"Jia Zhang, Rongrong Liu, Ze Yang, Canghai Luo, Jingyi Chen, Baoling Guo, David A. Weitz, Dong Chen","doi":"10.1002/cnma.202500043","DOIUrl":"https://doi.org/10.1002/cnma.202500043","url":null,"abstract":"Nanoparticles (NPs) are promising tools in biomedical applications. Their unique physicochemical properties, such as controllable size, tunable shape, and versatile surface functionality, provide significant advantages in targeted delivery and controlled release. Despite the large progress, NP-based drug delivery systems still face a major challenge, i.e., NPs often demonstrate less therapeutic improvements than expected. The disparity mainly arises from the incomplete understanding of NP behaviors in the complex biological environments, especially their cellular uptake mechanisms, and thus, the performances of NPs are generally not optimized. A comprehensive understanding of how NP properties influence cellular uptake is essential for the design of high-performance delivery systems. This review summarizes recent advancements in the investigation of NP cellular uptake pathways and factors, such as NP size, shape, and surface functionality, which affect the cellular uptake processes. The physical and chemical properties of NPs can be modulated to control the cellular uptake pathway and enhance the cellular uptake efficiency, thus ultimately improving the bioavailability, efficacy, and safety. It aims to provide new insights for the design of NPs, ultimately advancing their applications in biomedical therapy.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598348","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