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Flexible, Wearable Mechano-Acoustic Sensors for Body Sound Monitoring Applications
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr05145a
Tran Bach Dang, Thanh-An Truong, Chi Cong Nguyen, Michael Listyawan, Joshua Sam Sapers, Sinuo Zhao, Duc Phuc Truong, Jin Zhang, Thanh Do, Hoang-Phuong Phan
{"title":"Flexible, Wearable Mechano-Acoustic Sensors for Body Sound Monitoring Applications","authors":"Tran Bach Dang, Thanh-An Truong, Chi Cong Nguyen, Michael Listyawan, Joshua Sam Sapers, Sinuo Zhao, Duc Phuc Truong, Jin Zhang, Thanh Do, Hoang-Phuong Phan","doi":"10.1039/d4nr05145a","DOIUrl":"https://doi.org/10.1039/d4nr05145a","url":null,"abstract":"Body sounds serve as a valuable source of health information, offering insights into systems such as the cardiovascular, pulmonary, and gastrointestinal systems. Additionally, body sound measurements are easily accessible, fast, and non-invasive, which has led to their widespread use in clinical auscultation for diagnosing health conditions. However, conventional devices like stethoscopes are constrained by rigid and bulky designs, limiting their potential for long-term monitoring and often leading to subjective diagnoses. Recently, flexible, wearable mechano-acoustic sensors have emerged as an innovative alternative for body sound auscultation, offering significant advantages over conventional rigid devices. This review explores these advanced sensors, delving into their sensing mechanisms, materials, configurations, and fabrication techniques. Furthermore, it highlights various health monitoring applications of flexible, wearable mechano-acoustic sensors based on body sound auscultation. Finally, the existing challenges and promising opportunities are addressed, providing a snapshot of the current picture and the strategies of future approaches in this rapidly evolving field.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"17 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The assembly modules deformation strategy improved the chemical stability and self-assembly stability of docetaxel prodrugs nanoassemblies
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr05002a
Wenjing Wang, Shuo Wang, Shengyao Xu, Rong Chai, Jun Yuan, Hao Zhang, Yaqi Li, Xiaohui Pu, Xin Li, Jin Sun, Zhonggui He, Bingjun Sun
{"title":"The assembly modules deformation strategy improved the chemical stability and self-assembly stability of docetaxel prodrugs nanoassemblies","authors":"Wenjing Wang, Shuo Wang, Shengyao Xu, Rong Chai, Jun Yuan, Hao Zhang, Yaqi Li, Xiaohui Pu, Xin Li, Jin Sun, Zhonggui He, Bingjun Sun","doi":"10.1039/d4nr05002a","DOIUrl":"https://doi.org/10.1039/d4nr05002a","url":null,"abstract":"The self-assembly prodrugs usually consist of drug modules, activation modules, and assembly modules. The selection of suitable modules to construct prodrug nanoassemblies with self-assembly stability and intelligent activation is still a challenge. As a common assembly module, oleic acid can provide a driving force and steric hindrance for prodrugs self-assembly. However, unsaturated double bond of oleic acid is easily oxidized to affect its chemical stability. Herein, two docetaxel (DTX) prodrugs were designed using disulfide bonds as activation modules and two different fatty acids (isostearic acid and oleic acid) as assembly modules, respectively. Compared with oleic acid, isostearic acid has the advantage of higher chemical stability. At the same time, the terminal propyl structure of isostearic acid makes up for the steric hindrance without double bond. Overall, this structural deformation improved the self-assembly ability and chemical stability of the prodrug nanoassemblies, thus balancing the effectiveness and safety of the prodrugs. Our findings reveal the importance of the assembly modules and provide a guidance for the rational design of prodrug nanoassemblies.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"10 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Rice leaves microstructure-inspired high-efficiency electrodes for green hydrogen production
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr05151c
Yuliang Li, Jinxin Gao, Zhaoyang Wang, Honghao Li, Lu Li, Xiaofang Zhang, Xiaoyang Fan, Longyun Lin, Yan Li, Ke Li, Chunyu Zhang, Linyang Li, Ran Wang, Yunting Su, Dongliang Tian
{"title":"Rice leaves microstructure-inspired high-efficiency electrodes for green hydrogen production","authors":"Yuliang Li, Jinxin Gao, Zhaoyang Wang, Honghao Li, Lu Li, Xiaofang Zhang, Xiaoyang Fan, Longyun Lin, Yan Li, Ke Li, Chunyu Zhang, Linyang Li, Ran Wang, Yunting Su, Dongliang Tian","doi":"10.1039/d4nr05151c","DOIUrl":"https://doi.org/10.1039/d4nr05151c","url":null,"abstract":"Hydrogen production <em>via</em> water electrolysis is deemed a prime candidate for large-scale commercial green hydrogen generation. However, during the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), bubble accumulation on the electrode surface substantially elevates the required voltage and diminishes electrolysis efficiency. In this work, we demonstrated a rice leaves-inspired anisotropic microstructured gas conduction electrode (Ni-conduction) that can rapidly detach bubbles from the anisotropic microstructure. The microstructured grooves on the electrode surface lower the interface energy and modify bubble detachment dynamics, enabling swift bubble release and directed bubble flow along the microstructured channels. As a result, the Ni-conduction achieves a reduction in HER/OER overpotential, reaching values of 92/123 mV at 10 mA cm<small><sup>−2</sup></small>. This performance significantly surpasses the performance of a flat nickel electrode (Ni-smooth), necessitating an overpotential of 183/176 mV under identical conditions. Furthermore, the assembled Ni-conduction||Ni-conduction overall water-splitting device only needs a cell voltage of 1.53 V to reach 10 mA cm<small><sup>−2</sup></small>. Our research emphasizes the significance of wettability design in electrode microstructure to enhance mass transfer and optimize water splitting efficiency, presenting novel strategies for the development of superior gas-evolution electrodes.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"10 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Radical Initiated Polymerization of p-styrenesulfonate on Graphitic Carbon Nitride for Interconnected Water Networks in Short-Side-Chain PFSA Membranes for Low-Humidity Hydrogen Fuel Cells
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr04913f
M Neeshma, Suraj Punnappadam Rajan, Baskaran Mohan Dass, Santoshkumar D. Bhat
{"title":"Radical Initiated Polymerization of p-styrenesulfonate on Graphitic Carbon Nitride for Interconnected Water Networks in Short-Side-Chain PFSA Membranes for Low-Humidity Hydrogen Fuel Cells","authors":"M Neeshma, Suraj Punnappadam Rajan, Baskaran Mohan Dass, Santoshkumar D. Bhat","doi":"10.1039/d4nr04913f","DOIUrl":"https://doi.org/10.1039/d4nr04913f","url":null,"abstract":"Interfacial ionic transport resistance, caused by sparsely connected water networks in polymer electrolyte membranes (PEMs) at low relative humidity (RH), limits the performance of hydrogen fuel cells. This challenge is addressed by employing a radical-initiated polymerization of p-styrenesulfonate (SS) on graphitic carbon nitride (CN) to enrich sulfonic acid groups via covalent grafting which are then incorporated into a short-side chain Perfluoro Sulfonic acid (SSC PFSA) ionomer matrix. This promotes the formation of interconnected water networks, even at low RH, and reduces the activation energy without negatively impacting the transport-stability trade-off. With the synergistic improvement in proton condctivity, water retention and mechanical stability, at 0.6 V, composite membranes demonstrated a 30% improvement in current density (1.12 A/cm2) at 30% RH and a 42% improvement (0.93 A/cm2) under dry gas conditions. The peak power density achieved for the composite membrane was 1.3 W/cm2 at 100 %RH. Furthermore, the composite membrane reinforces critical mechanical properties such as Youngs modulus, tensile strength and dimensional stability, ensuring durability under operational stresses, evidenced by only a 10% reduction in initial Open Circuit Voltage (OCV) during accelerated stress test. Current density comparisons before and after the stability test also showed minimal losses, attributed to the ability of additive to maintain interconnected water networks and reduce ionic transport resistance, thus enhancing proton conduction and fuel cell performance, particularly in low RH environments.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"9 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Engineered Molybdenum Disulfide Nanosheets as Scavengers Against Oxidative Stress and Inhibit Ferroptosis to Alleviate Acute Kidney Injury
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr05060f
Xuwu Zhang, Zhipeng Xu, Yongzheng Zhang, Dan Wei, Shuping Zhang, Jianning Wang, Jiayu Ren
{"title":"Engineered Molybdenum Disulfide Nanosheets as Scavengers Against Oxidative Stress and Inhibit Ferroptosis to Alleviate Acute Kidney Injury","authors":"Xuwu Zhang, Zhipeng Xu, Yongzheng Zhang, Dan Wei, Shuping Zhang, Jianning Wang, Jiayu Ren","doi":"10.1039/d4nr05060f","DOIUrl":"https://doi.org/10.1039/d4nr05060f","url":null,"abstract":"Acute kidney injury (AKI) is a common clinical kidney dysfunction associated with high morbidity, elevated mortality, and poor prognosis. It is related with redox imbalance caused by abnormal excess production of endogenous reactive oxygen species (ROS) at the renal tubules, causing a series of pathological processes such as cellular apoptosis, necrosis, and ferroptosis, leading to structural and functional impairment of the kidney. Thereinto, ferroptosis induced by the lethal accumulation of lipid peroxidation is extensively involved in renal damage. Nanotechnology-mediated therapeutic strategy to scavenge excessive ROS and inhibit ferroptosis represent a promising strategy for AKI management. Here, we report two engineered ultrathin molybdenum disulfide (MoS2) nanosheets (NSs) modified with polyvinylpyrrolidone (PVP) and bovine serum albumin (BSA), respectively, with excellent biocompatibility and antioxidative defense capability for AKI treatment. The engineered NSs, with a readily variable valence state of molybdenum ions, were able to rescue cell viability by consuming various forms of cellular ROS and significantly facilitates glutathione peroxidase 4 (GPX4) expression to mitigate ferroptosis in renal tubular epithelial cells. In a glycerol-induced AKI mouse model, the PVP-MoS2 NSs were largely accumulated in the injured kidneys, where they provided robust antioxidative protection against ROS attack and suppressed the oxidative stress-induced inflammatory response, thereby maintaining normal kidney function. Of the two engineered NSs, PVP-MoS2 displayed far superior biological stability and therapeutic effect and could thus serve as a powerful antioxidant platform for use in the treatment of AKI and other ROS-associated diseases. This study underscores the potential of two-dimensional nanomaterials in precisely treating AKI and other ferroptosis-related diseases.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"33 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Electrochromic thin films of tungsten oxide with high-exposure (002) crystal faces doped and modulated with cerium acetate
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr05095a
Shanshan Nie, Chengyi Wang, Miao Zhou, Yi Lian, Jie Liu, Mengnan Ruan, Zhifeng Liu
{"title":"Electrochromic thin films of tungsten oxide with high-exposure (002) crystal faces doped and modulated with cerium acetate","authors":"Shanshan Nie, Chengyi Wang, Miao Zhou, Yi Lian, Jie Liu, Mengnan Ruan, Zhifeng Liu","doi":"10.1039/d4nr05095a","DOIUrl":"https://doi.org/10.1039/d4nr05095a","url":null,"abstract":"The electrochromic layer is the key part of the electrochromic device, and it is usually necessary to introduce nanomaterials or other functional materials to improve the response speed and stability. In this paper, a cerium acetate-doped tungsten oxide film (WO<small><sub>3</sub></small>-CA) prepared by a hydrothermal and annealing method is presented and compared with a pure tungsten oxide film (WO<small><sub>3</sub></small>) and an acetate-doped tungsten oxide film (WO<small><sub>3</sub></small>-HAC) in terms of electrochromic performance. The electrochemical analysis results show that the Li<small><sup>+</sup></small> diffusion rate of the WO<small><sub>3</sub></small>-CA film is 37.36 × 10<small><sup>−12</sup></small> cm<small><sup>2</sup></small> s<small><sup>−1</sup></small>, which is 2.6 and 2.2 times higher than that of pure WO<small><sub>3</sub></small> (14.21 × 10<small><sup>−12</sup></small> cm<small><sup>2</sup></small> s<small><sup>−1</sup></small>) and WO<small><sub>3</sub></small>-HAC (16.93 × 10<small><sup>−12</sup></small> cm<small><sup>2</sup></small> s<small><sup>−1</sup></small>), respectively. Combined with density-functional theory (DFT) simulations, it was investigated whether the introduction of cerium acetate forms new Ce–O coordination bonds with oxygen atoms in WO<small><sub>3</sub></small> and exposes more (002) crystal faces. In addition, the introduction of acetate ions also contributes to the improvement of the structural stability and electrochemical properties of the films, which promotes the enhancement of the electrochromic effect. This mechanism provides a new idea for optimizing electrochromic materials.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"17 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Intrinsic setting of exciton state in MoS2 monolayer via tailoring Moiré correlation with a sapphire substrate
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr03935a
Chun-Wen Chan, Fang-Mei Chan, Sheng-Kuei Chiu, Lu-Chih Chen, Wun-Jhen Yu, Chia-Yun Hsieh, Chao-Yao Yang
{"title":"Intrinsic setting of exciton state in MoS2 monolayer via tailoring Moiré correlation with a sapphire substrate","authors":"Chun-Wen Chan, Fang-Mei Chan, Sheng-Kuei Chiu, Lu-Chih Chen, Wun-Jhen Yu, Chia-Yun Hsieh, Chao-Yao Yang","doi":"10.1039/d4nr03935a","DOIUrl":"https://doi.org/10.1039/d4nr03935a","url":null,"abstract":"This study aims to elucidate the specific Moiré correlation and associated exciton properties within MoS2 monolayers grown randomly oriented on a c-cut single-crystalline sapphire (Al2O3) substrate, which facilitates a distinct Moiré correlation. Notably, the exciton state in MoS2 monolayers appeared periodically linked to the stacking geometry with the sapphire substrate. Specifically, the observed stacking configuration of MoS2[11-20]/Al2O3[11-20] induced a redshifted exciton state, while a 30-degree-misaligned stacking, such as MoS2[11-20]/ Al2O3[01-10], heightened the exciton energy. The variation in exciton state due to changes in the stacking geometry between MoS2 and sapphire thus exhibited a 6-fold periodicity, reflecting the combination of hexagonal MoS2 and trigonal sapphire substrate. This transition in the exciton state of the MoS2 monolayer was attributed to stacking-induced strain: the MoS2[11-20]/ Al2O3[11-20] stack resulted in a closely packed nature with induced tensile strain in the film plane, whereas the MoS2[11-20]/Al2O3[01-10] stack appeared lightly packed, thus rendering the MoS2 structurally relaxed. These findings regarding the stacking-induced strain issues are consistent with the results of Raman spectra. This work underscores the potential for manipulating the crystallographic stacking between single-crystalline MoS2 monolayers and sapphire substrates to serve as a versatile platform for investigating photonics in MoS2-based heterostructures.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"167 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Quasi-BIC-empowered integrated sensing dielectric metasurface for molecular fingerprint retrieval and chiral detection
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr04665j
Yuhang Wei, Liming Si, Kunlin Han, Haoyan Xu, Xiue Bao, Weiren Zhu
{"title":"Quasi-BIC-empowered integrated sensing dielectric metasurface for molecular fingerprint retrieval and chiral detection","authors":"Yuhang Wei, Liming Si, Kunlin Han, Haoyan Xu, Xiue Bao, Weiren Zhu","doi":"10.1039/d4nr04665j","DOIUrl":"https://doi.org/10.1039/d4nr04665j","url":null,"abstract":"Precise detection and classification of chiral enantiomers are essential for pharmaceutical development and disease diagnosis. Nanophotonics provides a promising approach enhancing the light-matter interaction and detecting intrinsic weak chiroptical signals. However, the use of separate platforms for molecular concentration detection and chiral identification often impedes system integration. Here, we propose an integrated sensing dielectric metasurface that enables both surface-enhanced infrared absorption (SEIRA) and surface-enhanced vibrational circular dichroism (SEVCD) sensing. The metasurface features quasi-bound states in the continuum (quasi-BIC) resonances with tunable and high quality (Q) factors in the mid-infrared (MIR) region. Importantly, a switchable superchiral field can be generated under off-axis linear polarization by adjusting the period aspect ratio of the unit cell, achieving a volume-averaged chirality enhancement of 195-fold. Coating the metasurface with chiral Thalidomide demonstrates its capability for molecular detection, with a 9-order increase in absorbance and over 160-fold enhancement in VCD signals. This work presents a high-performance platform for function multiplexing of broadband fingerprint retrieval and chiral identification, paving the way for advancements in chemical applications and biomedical diagnostics.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"86 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Membrane-based Adsorbent Materials for Uranium Extraction from Seawater: Recent Progress and Future Prospects
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr04603j
Zhong Liu, Huanhuan Tan, Yuling Shao, Guoliang Nie, Zewei Hou, Peipei Yang, Songwei Li, Chuntai Liu
{"title":"Membrane-based Adsorbent Materials for Uranium Extraction from Seawater: Recent Progress and Future Prospects","authors":"Zhong Liu, Huanhuan Tan, Yuling Shao, Guoliang Nie, Zewei Hou, Peipei Yang, Songwei Li, Chuntai Liu","doi":"10.1039/d4nr04603j","DOIUrl":"https://doi.org/10.1039/d4nr04603j","url":null,"abstract":"The global energy shortage problem is becoming more and more serious, and it is urgent to solve the energy shortage. Nuclear energy is considered to be a green, efficient and clean energy source. The reserves of uranium, an essential strategic nuclear fuel resource, have become pivotal in addressing the energy crisis. Compared with uranium resources on land, the ocean is rich in uranium resources. Therefore, uranium extraction from seawater has become an ideal choice. However, the variety of competing ions in seawater, the high salinity of seawater and the complex Marine environment make extracting uranium from seawater a huge challenge. In the context of assessing the economics and sustainability of the entire uranium separation process, membrane-based adsorbents are considered ideal materials for wholesale extraction of uranium from seawater due to their ease of collection and reuse. At present, the review of different types of membrane-based adsorbent materials, mainly including modified non-woven membrane, phase conversion membrane, and other types of membrane materials are given. In addition, this review summarizes the recent studies on the use of membrane-based adsorbents for extracting uranium from seawater and the prospects for their development. With the rapid development of membrane-based adsorbents towards uranium extraction from seawater, this review also discusses the challenges and prospects of this frontier field.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"9 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Self-Supporting Poly (3,4-ethylenedioxythiophene) and Fe3C Co-Decorated Electrospun Carbon Nanofibers as Li2S Supporter for Lithium Sulfur Batteries
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2025-02-11 DOI: 10.1039/d4nr04989f
Na Yang, Jiarui Xue, Yuanxiao Ji, Jiyuan Zhang, Weiye Zhang, Xuexia He, Qi Li, zhibin lei, Zonghuai Liu, Jie Sun
{"title":"Self-Supporting Poly (3,4-ethylenedioxythiophene) and Fe3C Co-Decorated Electrospun Carbon Nanofibers as Li2S Supporter for Lithium Sulfur Batteries","authors":"Na Yang, Jiarui Xue, Yuanxiao Ji, Jiyuan Zhang, Weiye Zhang, Xuexia He, Qi Li, zhibin lei, Zonghuai Liu, Jie Sun","doi":"10.1039/d4nr04989f","DOIUrl":"https://doi.org/10.1039/d4nr04989f","url":null,"abstract":"Lithium Sulfur (Li-S) batteries have attracted great attention in recent years due to their high theoretical energy density (2600 Wh kg-1) and specific capacity (1675 mAh g-1), abundant reserves and environmental friendly. However, the well-known poor electrical conductivity of sulfur/Li2S, shuttle effect of Lithium Polysulfides (LiPSs) and the in-situ formation of lithium dendrites during cycling process extremely hinders the large fabrication of Li-S batteries. In this work, we have designed and prepared a Poly (3,4-ethylenedioxythiophene) (PEDOT) and Fe3C nanoparticles co-decorated Carbon Nanofibers (CNFs) membrane as a self-supporting Li2S host to enhance the electrochemical performance of Li-S batteries. The PEDOT coating layer can tightly connect Fe3C nanoparticles with the CNFs to form a conductive network, which significantly enhancing the conductivity of the cathode. At the same time, the strong chemical adsorption of PEDOT and the catalytic effect of Fe3C can effectively accelerate the conversion kinetics of LiPSs, thereby improving the battery performance. As a result, the optimized PEDOT@CNFs@Fe3C-16wt%/Li2S composite cathode can achieve a high initial specific capacity of 816 mAh g-1 at the current density of 0.1 C. While such cathode also exhibits only 0.033% capacity decay per cycle at 0.5 C after 1000 cycles, showing its advantages as a high-performance self-supporting flexible Li-S composite cathode.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"17 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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