Digest Journal of Nanomaterials and Biostructures最新文献_第2页

Sustainable generation of electricity using carbonized lignin/thermoplastic polyurethane composite films in water 利用炭化木质素/热塑性聚氨酯复合薄膜在水中可持续发电

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2025-05-15 DOI: 10.15251/djnb.2025.202.507

Zhipeng Zhang, Shiqing Li, Yiheng Zhou, Yu Lei, Wěi Zhāng, Junwei Sha

{"title":"Sustainable generation of electricity using carbonized lignin/thermoplastic polyurethane composite films in water","authors":"Zhipeng Zhang, Shiqing Li, Yiheng Zhou, Yu Lei, Wěi Zhāng, Junwei Sha","doi":"10.15251/djnb.2025.202.507","DOIUrl":"https://doi.org/10.15251/djnb.2025.202.507","url":null,"abstract":"Harvesting energy from water/carbon interfaces represents an eco-friendly approach to addressing the global energy crisis. Unlike conventional nanogenerators utilizing carbon nanomaterials, which typically require integration into specific systems with external pumps for liquid flow, this study presents the fabrication of a novel water-driven energy generator (WEG) utilizing composite films that integrate carbonized lignin, with varying oxygencontaining groups, and thermoplastic polyurethane in an aqueous environment. Upon optimization, the WEG demonstrates remarkable performance, achieving stable output voltage and current of 210 mV and 1.04 μA, respectively. The WEG’s output voltage demonstrated remarkable stability and reproducibility during numerous cyclic bending tests. Furthermore, by simply connecting eight WEGs in series, an elevated voltage of 1.63 V can be achieved, and these scalable units have the capability to directly power commercial electronics, such as light-emitting diodes. This energy conversion technology may provide new insights into the design of WEGs capable of harvesting water energy.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 2","pages":"507-518"},"PeriodicalIF":0.0,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.202.507","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334078","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

Simultaneously reinforce and de-color nanocellulose/lignin composite films by tuning hydroxyl groups with sodium borohydride 用硼氢化钠调节羟基，同时增强和脱色纳米纤维素/木质素复合膜

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2025-01-15 DOI: 10.15251/djnb.2025.201.23

, X. G. Liu, S. Y. Zeng, , Q. F. Wang, , J. Li, , X. Tong, , J. B. Chen, , D. L. Guo, , H. F. Zhao, , X. H. Chen,

引用次数: 0

Properties regulation of carbon paper through incorporating lignin-based carbon nanofibers 木质素基纳米碳纤维对碳纸性能的调控

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2025-01-15 DOI: 10.15251/djnb.2025.201.1

Jicui Dai, C. H. Shen, Qianqian Tian, Xuan Liu, Shanmin Gao, Jun Li, Xin Tong

{"title":"Properties regulation of carbon paper through incorporating lignin-based carbon nanofibers","authors":"Jicui Dai, C. H. Shen, Qianqian Tian, Xuan Liu, Shanmin Gao, Jun Li, Xin Tong","doi":"10.15251/djnb.2025.201.1","DOIUrl":"https://doi.org/10.15251/djnb.2025.201.1","url":null,"abstract":"Carbon paper is commonly used as one of the electrode materials in batteries, where its main function is to serve as a conductive material, providing a channel for electron transport, and also helping to improve the conductivity and stability of the battery. Therefore, it is necessary to study how to improve the performance of carbon paper. This study aims to enhance the performance of carbon paper used in proton exchange membrane fuel cells (PEMFCs) by incorporating lignin-based carbon nanofibers (CNFs). We investigated the effects of different process flows, papermaking methods, and the addition amount of ligninbased carbon fibers on the performance of carbon paper. The research indicates that using the wet papermaking method and the process of electrospinning, impregnation and hot pressing, addition of lignin nanofibers, pre-oxidation, impregnation and hot pressing, and carbonization can yield carbon paper with the best overall performance. The tensile strength is 9.4 mPa, the flexural strength is 390 mPa, the air permeability is 1320 L/m²/s, and the resistivity is 15 mΩ/cm. This significantly improves its mechanical strength, air permeability, and electrical conductivity, making it a promising material for PEMFCs.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.201.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334025","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

Biomineralization of Bi2S3-Gd2O3 nanocomposites: a novel approach for enhanced photothermal and MRI applications Bi2S3-Gd2O3纳米复合材料的生物矿化：增强光热和MRI应用的新方法

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-12-15 DOI: 10.15251/djnb.2024.194.1903

Qiang Lu, B. H. Zhang, Ting‐Hua Yi, Lifeng Hao, Jay L. Xue, Wubiao Duan, Yuenan Wan, D. T. Chen, Jiacheng Wang, Xuefeng Guo, Liying Zhang

{"title":"Biomineralization of Bi2S3-Gd2O3 nanocomposites: a novel approach for enhanced photothermal and MRI applications","authors":"Qiang Lu, B. H. Zhang, Ting‐Hua Yi, Lifeng Hao, Jay L. Xue, Wubiao Duan, Yuenan Wan, D. T. Chen, Jiacheng Wang, Xuefeng Guo, Liying Zhang","doi":"10.15251/djnb.2024.194.1903","DOIUrl":"https://doi.org/10.15251/djnb.2024.194.1903","url":null,"abstract":"In this study, Bi2S3-Gd2O3 nanocomposites (Bi2S3-Gd2O3@BSA) were prepared via biomineralization using albumin as a template, and the nanomaterials were directed to the tumor site through surface folic acid modification. Among these materials, Bi2S3 serves as an effective photothermal conversion agent (PTA) for photothermal therapy at tumor sites, attributed to its impressive photothermal conversion efficiency. In contrast, Gd2O3, being a paramagnetic substance, can serve effectively as a contrast agent in the magnetic resonance imaging (MRI). According to in vitro and in vivo experiments, the nanomaterials exhibit low toxicity, favorable biocompatibility, and outstanding photothermal properties. Upon the exposure to 808 nm laser irradiation, the nanomaterials quickly reach the therapeutic temperature necessary for effective tumor treatment. With folic acid modification, these nanomaterials accumulate in the tumor region, enabling efficient treatment. This strategy provides a fresh outlook for the purposeful design of diagnostic agents aimed at tumor imaging and therapy.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"19 4","pages":"1903-1920"},"PeriodicalIF":0.0,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2024.194.1903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918989","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

Study on the surface sizing of modified chitosan and its effect on the properties of dialysis paper 改性壳聚糖表面施胶及其对透析纸性能影响的研究

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-12-15 DOI: 10.15251/djnb.2024.194.1835

Baoqin Fu, Jing‐Lin Zuo, Hai-Ming Zhao, Lizheng Sha, Junjie Li, Jianbing Chen

{"title":"Study on the surface sizing of modified chitosan and its effect on the properties of dialysis paper","authors":"Baoqin Fu, Jing‐Lin Zuo, Hai-Ming Zhao, Lizheng Sha, Junjie Li, Jianbing Chen","doi":"10.15251/djnb.2024.194.1835","DOIUrl":"https://doi.org/10.15251/djnb.2024.194.1835","url":null,"abstract":"In order to improve the paper properties and enhance the utilization efficiency of functional chemical additives, surface sizing agents were prepared by combining water-soluble maleic anhydride acylated chitosan (MAAC), carboxymethylated chitosan (O-CMCS) and polyvinyl alcohol (PVA), and the effects of sizing process on the surface morphology, physical strength and antimicrobial properties of the dialysis paper were investigated. The results showed that when the coating weight was about 6.5 g/m2 and the dosage of the modified chitosan was about 1.5% of the paper weight, the dry tensile strength, wet tensile strength and burst strength of paper sized with MAAC/PVA sizing agent increased by 46.5%, 82.2% and 107%, respectively, compared to that of unsized paper, while the dry tensile strength, wet tensile strength and burst strength of paper sized with O-CMCS/PVA sizing agent increased by 41.4%, 53.6% and 107%, respectively. In addition, the paper sized with MAAC/PVA and O-CMCS/PVA sizing agent displayed excellent antibacterial effect, which had the antibacterial rate against E. coli of 94.8% and 92.9%, respectively. In a word, the physical strength and antimicrobial properties of paper could be greatly improved by adding a small amount of modified chitosan (CS) to the surface sizing agent, and the strength improvement and antibacterial effect of MAAC/PVA sizing agent were better than that of O-CMCS/PVA.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"19 4","pages":"1835-1845"},"PeriodicalIF":0.0,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2024.194.1835","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887484","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

Fabrication of superhydrophobic coating with enhanced stability and anti-icing performance 稳定性和防冰性能增强的超疏水涂层的制备

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-12-15 DOI: 10.15251/djnb.2024.194.1855

Xinyu Fang, Jiwen Shen, Zhaozhong Feng, Zhuoqi Tang

引用次数: 1

The effect of Pr substitution on the spectrum and photocatalytic performance of MgAl2O4 nanoparticles Pr取代对MgAl2O4纳米粒子光谱和光催化性能的影响

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-11-15 DOI: 10.15251/djnb.2024.194.1719

Zou Yu, Jiabin Zhou, Min Xu, Ya Yang, Yongya Wang

引用次数: 0

Research on PbTiO3 nanoparticles optimized mesoporous layer for perovskite solar cells 纳米PbTiO3优化钙钛矿太阳能电池介孔层的研究

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-11-01 DOI: 10.15251/djnb.2024.194.1561

Yihui Zhang, Jinyun Li, Junming Li, Haiyang Tao, C. X. Zhang

{"title":"Research on PbTiO3 nanoparticles optimized mesoporous layer for perovskite solar cells","authors":"Yihui Zhang, Jinyun Li, Junming Li, Haiyang Tao, C. X. Zhang","doi":"10.15251/djnb.2024.194.1561","DOIUrl":"https://doi.org/10.15251/djnb.2024.194.1561","url":null,"abstract":"Organic-inorganic hybrid perovskite solar cells have garnered significant attention due to their facile fabrication process and high photovoltaic conversion efficiency. The electron transport layer plays a crucial role in the carrier separation mechanism of perovskite solar cells, making it a focal point for enhancing cell performance. In this study, PbTiO3 was introduced into TiO2 mesoporous layers by modification and doping in order to optimize cell performance. Initially, the use of PbTiO3-modified mesoporous layers revealed issues such as non-uniform modification layers, low film coverage rates, and reduced light transmittance. These issues hindered the ability of PbTiO3 to facilitate carrier separation and resulting in suboptimal optimization effects. However, by utilizing PbTiO3-doped mesoporous layers for optimizing cell performance, we observed improved quality and higher light transmittance in the perovskite films. As a consequence of the improved carrier separation achieved by PbTiO3, the efficiency of the solar cell has been enhanced to 5.51%.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"19 4","pages":"1561-1575"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"http://dx.doi.org/10.15251/djnb.2024.194.1561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908677","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

CoFe bimetallic phosphide fabricated by topological transformation strategy for efficient electrooxidation of benzyl alcohol 用拓扑转化策略制备苯甲醇高效电氧化的咖啡双金属磷化物

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-08-19 DOI: 10.15251/djnb.2024.193.1159

Junyan Liu, Heng‐Jui Liu, Yuwei Xu, Hongwei Wang, L. J. Wang

引用次数: 0

Direct ink writing of WC-Co composite with flexible green bodies 柔性绿体WC-Co复合材料的直墨书写

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2024-08-05 DOI: 10.15251/djnb.2024.193.1077

N. Zhang, Ting Luo, Xiaoling Yang

引用次数: 0