ACS Applied Nano Materials最新文献_第4页

Highly Stretchable Strain Sensor with Both an Ultrawide Workable Range and an Ultralow Detection Limit for Human Health Monitoring 高度可拉伸应变传感器具有超宽工作范围和超低检测限，可用于人体健康监测

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-26 DOI: 10.1021/acsanm.4c0459310.1021/acsanm.4c04593

Kangqi Chang*, and , Tianxi Liu*,

{"title":"Highly Stretchable Strain Sensor with Both an Ultrawide Workable Range and an Ultralow Detection Limit for Human Health Monitoring","authors":"Kangqi Chang*,  and , Tianxi Liu*, ","doi":"10.1021/acsanm.4c0459310.1021/acsanm.4c04593","DOIUrl":"https://doi.org/10.1021/acsanm.4c04593https://doi.org/10.1021/acsanm.4c04593","url":null,"abstract":"Ultrahigh performance and versatile flexible piezoresistive strain sensors have received tremendous attention in scientific and commercial societies, yet the trade-off between hypersensitivity and the broad detection range of strain sensors still hinders their practical applications. Herein, we combined an electrospinning technique with an ultrasonication anchoring technique to easily fabricate a highly elastic and conductive electrospun carbon black (CB)/olefin block copolymers (OBCs)/polyethylene glycol (PEG) fibrous film for an ultrahigh performance piezoresistive strain sensor. This article demonstrates the influence of different contents of PEG in the electrospinning process on the mechanical properties of elastic substrate OBCs/PEG. Benefiting from the high mechanical strength, low hysteresis, and appropriate modulus of OBCs/PEG, as-developed conductive microfibers can be applied as a strain sensor, which exhibits a high gauge factor of up to 1903, a fast response/recovery time (87 ms/96 ms), outstanding stability and durability (>10,000 cycles at a strain of 150%), and an ultrabroad detection range (0.15–750%). Moreover, the CB/OBCs/PEG (COP) fabric can be applied to bioelectrodes to record electrocardiograms (ECGs). This ultrahigh performance piezoresistive strain sensor has promising applications in human–machine interactivity, flexible tactile electronic skin, and personal health monitoring systems.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Coassembled Nanoparticles Constructed from Trisulfide Bond-Modified Docetaxel and Hematoporphyrin for Treating 4T1 Breast Tumors 由三硫键修饰的多西他赛和血卟啉构建的共组装纳米粒子用于治疗 4T1 乳腺肿瘤

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0465010.1021/acsanm.4c04650

Guolian Ren*, Canqi Ping, Xiaozhou Dong, Qiuyue Jin, Xiaohui Zhou, Xiaomin Niu, Jingjing Han, Fei Pan, Qingxia Li, Rongrong Wang, Danyu Duan, Guoshun Zhang, Ruili Wang, Xihua Yang and Shuqiu Zhang*,

{"title":"Coassembled Nanoparticles Constructed from Trisulfide Bond-Modified Docetaxel and Hematoporphyrin for Treating 4T1 Breast Tumors","authors":"Guolian Ren*, Canqi Ping, Xiaozhou Dong, Qiuyue Jin, Xiaohui Zhou, Xiaomin Niu, Jingjing Han, Fei Pan, Qingxia Li, Rongrong Wang, Danyu Duan, Guoshun Zhang, Ruili Wang, Xihua Yang and Shuqiu Zhang*, ","doi":"10.1021/acsanm.4c0465010.1021/acsanm.4c04650","DOIUrl":"https://doi.org/10.1021/acsanm.4c04650https://doi.org/10.1021/acsanm.4c04650","url":null,"abstract":"Docetaxel (DTX) injection, a first-line chemotherapy treatment for breast cancer, encounters clinical constraints owing to its systemic side effects. To address these issues, we innovatively prepared nanoparticles (NPs) by coassembling a trisulfide bond-modified DTX (DSSSD) with hematoporphyrin (HP), a photosensitizer. This resulted in DSSSD/HP NPs exhibiting a spherical morphology and a uniform size distribution. For comparison, a control group of DSSD/HP NPs was also formulated, using a disulfide bond-modified DTX (DSSD) instead of DSSSD. The results of the in vitro drug release study revealed that DSSSD/HP NPs exhibited a higher redox-responsive release capability compared with DSSD/HP NPs. Furthermore, when exposed to near-infrared irradiation, DSSSD/HP NPs exhibited increased cytotoxicity by generating abundant reactive oxygen species, inducing greater glutathione depletion, and upregulating the apoptotic Bax protein expression, all of which surpassed the effects observed with DSSD/HP NPs. DSSSD/HP NPs improved the pharmacokinetic behaviors of DTX in rats, enhancing its distribution and accumulation within tumor tissues, while mitigating adverse effects in 4T1 breast tumor-bearing mice. This integration of DTX-mediated chemotherapy with HP-triggered photodynamic therapy resulted in a notable improvement in antitumor efficacy. Therefore, the ideas and findings of DSSSD/HP NPs presented in this study provide a strategy for combining of trisulfide bond-modified drugs with photodynamic therapy.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-Yield Production of SiV-Doped Nanodiamonds for Spectroscopy and Sensing Applications 高产率生产用于光谱学和传感应用的掺杂 SiV 纳米金刚石

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0467610.1021/acsanm.4c04676

Alexander Kromka*, Marián Varga, Kateřina Aubrechtová Dragounová, Oleg Babčenko, Rene Pfeifer, Assegid M. Flatae, Florian Sledz, Farzana Akther, Mario Agio, Štěpán Potocký and Štěpán Stehlík,

{"title":"High-Yield Production of SiV-Doped Nanodiamonds for Spectroscopy and Sensing Applications","authors":"Alexander Kromka*, Marián Varga, Kateřina Aubrechtová Dragounová, Oleg Babčenko, Rene Pfeifer, Assegid M. Flatae, Florian Sledz, Farzana Akther, Mario Agio, Štěpán Potocký and Štěpán Stehlík, ","doi":"10.1021/acsanm.4c0467610.1021/acsanm.4c04676","DOIUrl":"https://doi.org/10.1021/acsanm.4c04676https://doi.org/10.1021/acsanm.4c04676","url":null,"abstract":"Nanodiamonds (NDs) containing optically active centers have gained significant relevance as the material of choice for biological, optoelectronic, and quantum applications. However, current production methods lag behind their real needs. This study introduces two CVD-based approaches for fabricating NDs with optically active silicon-vacancy (SiV) color centers: bottom-up (BU) and top-down (TD) methods. The BU approach generates nanoporous diamond films with a core–shell structure, while the TD method employs molten-salt thermal etching to create uniform porous structures from nanocrystalline diamond films. Comprehensive characterization using advanced techniques revealed distinct morphologies and optical properties for each approach. The BU method yielded higher-quality diamond phases with top-surface incorporation of SiV centers, while the TD method demonstrated efficient nondiamond phase removal. Ultrasonic disintegration of both porous films produced NDs ranging from 40 to 500 nm, with unique morphologies characteristic of each approach. Photoluminescence measurements confirmed SiV centers (738 nm) in all NDs, exhibiting sensitivity to surface terminations, particularly in BU samples. Temperature-resolved spectroscopy shows the potential of the fabricated NDs for nano thermometry over a wide range of temperatures up to 100 °C. The zero-phonon line shows 0.022 ± 0.003 nm/K sensitivity, while the line width exhibits 0.068 ± 0.004 nm/K broadening. The presented BU and TD methods offer significant advantages over existing techniques, including streamlined production processes, high-yield ND synthesis with tailored properties, and the potential for scalable, cost-effective manufacturing.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.4c04676","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Poly(L-lactic acid)-BiFeO3/Ti3C2 Scaffolds for Antibacterial Sonodynamic Therapy 用于抗菌声动力疗法的聚(L-乳酸)-BiFeO3/Ti3C2 支架

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0508210.1021/acsanm.4c05082

Cijun Shuai, Xingming Long, Yingxin Yang, Bingxin Sun, Zihao Zhang, Guoyong Wang* and Shuping Peng*,

{"title":"Poly(L-lactic acid)-BiFeO3/Ti3C2 Scaffolds for Antibacterial Sonodynamic Therapy","authors":"Cijun Shuai, Xingming Long, Yingxin Yang, Bingxin Sun, Zihao Zhang, Guoyong Wang* and Shuping Peng*, ","doi":"10.1021/acsanm.4c0508210.1021/acsanm.4c05082","DOIUrl":"https://doi.org/10.1021/acsanm.4c05082https://doi.org/10.1021/acsanm.4c05082","url":null,"abstract":"Bacterial infection is a severe challenge after artificial transplantation due to the lack of an antibacterial functional implant, which results in delayed healing or even transplant failure. Herein, a sonodynamic antibacterial strategy was proposed by integrating a BiFeO3/Ti3C2 heterojunction into a three-dimensional-printed poly-L-lactic acid scaffold. BiFeO3 can be stimulated using ultrasonic energy to generate carriers. Ti3C2, with good conductivity, can form an interfacial transfer channel with BiFeO3, accelerating interfacial charge transfer. Additionally, forming a Schottky barrier between BiFeO3 and Ti3C2 effectively suppressed electron backflow. The separation of electron–hole pairs was significantly enhanced, thus improving the yield of reactive oxygen species. The results demonstrated that the antibacterial scaffold exhibited antibacterial rates of 93 and 91% against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus exposed to ultrasound, respectively. Additionally, the poly(L-lactic acid)-BiFeO3/Ti3C2 scaffold possessed good biocompatibility and showed great potential for bone regeneration.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Soot-Derived Flash Graphene as Cement Additive 作为水泥添加剂的烟尘衍生闪石墨烯

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0532210.1021/acsanm.4c05322

Wala A. Algozeeb, Ali Algadhib, Shamsad Ahmad*, Mohammed A. Al-Osta, Ashraf A. Bahraq, Weiyin Chen, Syed Khaja Najamuddin, Syed Imran Ali and James M. Tour*,

{"title":"Soot-Derived Flash Graphene as Cement Additive","authors":"Wala A. Algozeeb, Ali Algadhib, Shamsad Ahmad*, Mohammed A. Al-Osta, Ashraf A. Bahraq, Weiyin Chen, Syed Khaja Najamuddin, Syed Imran Ali and James M. Tour*, ","doi":"10.1021/acsanm.4c0532210.1021/acsanm.4c05322","DOIUrl":"https://doi.org/10.1021/acsanm.4c05322https://doi.org/10.1021/acsanm.4c05322","url":null,"abstract":"The incorporation of graphene-based materials into cement composites is one of many interesting nano-reinforcement techniques. However, the conventional production of graphene materials usually requires large quantities of solvent with energy-intensive mixing, which in turn restricts their commercial viability in cement and concrete applications. In this study, an approach for production of flash graphene (FG) from motor oil soot and diesel particulate using a Joule heating system was developed. A high-quality FG was obtained, as evident from Raman spectroscopy analysis. The FG product was added to a mixture to reinforce its microstructure. The results of the mechanical tests conducted on the cement mortar reinforced by admixing 0.1 wt % FG showed an increase in compressive, tensile, and flexural strengths and modulus of elasticity by 38%, 27%, 27%, and 34%, respectively, after curing for 28 days. The durability characteristics in terms of water absorption showed a slightly higher resistance of the FG-reinforced mortar to water penetration. The drying shrinkage of the FG-reinforced mortar was like that of the control mixture. A molecular dynamics simulation was performed on the cured FG-reinforced cement mortar to find that the Ca–Si interactions in the hydrated cement phase were boosted by the presence of FG, in addition to the strong interaction between the Ca and FG sheets. This study could contribute toward developing strong and sustainable nano-reinforced cementitious composites using graphene materials derived from inexpensive carbon and waste sources.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Revealing Drug Treatment Effect from the SERS Profiles of Cell Membrane Biomolecules by a Silver Nanoparticle-Based Magnetic Plasmonic Probe 利用银纳米粒子磁性等离子探针从细胞膜生物大分子的 SERS 图谱中揭示药物治疗效果

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0491610.1021/acsanm.4c04916

Jiaqi Wang, Xin Wang, Fanxiang Meng, Weiqing Xu and Shuping Xu*,

{"title":"Revealing Drug Treatment Effect from the SERS Profiles of Cell Membrane Biomolecules by a Silver Nanoparticle-Based Magnetic Plasmonic Probe","authors":"Jiaqi Wang, Xin Wang, Fanxiang Meng, Weiqing Xu and Shuping Xu*, ","doi":"10.1021/acsanm.4c0491610.1021/acsanm.4c04916","DOIUrl":"https://doi.org/10.1021/acsanm.4c04916https://doi.org/10.1021/acsanm.4c04916","url":null,"abstract":"Observing changes in cell morphology and cell membranes is the most direct way to monitor the effect of drug treatment on tumor cells. Here, a surface-enhanced Raman spectroscopy (SERS) approach was developed to directly reveal the fingerprint information on cancer cell membranes under different altered states in response to drugs by using a silver nanoparticle-based magnetic plasmonic (M-AgNPs) probe. The M-AgNP probe can quickly and spontaneously gather over the cell membrane within 5 min. Then, cell membrane fingerprint information was acquired, enabling us to successfully distinguish differences between the normal and apoptotic states before and after drug treatment, according to their SERS spectral profiles. The probe facilitates the identification of drug effects on the cell membrane and in complex biological scenarios. This cell membrane-specific, molecular-level analytical platform offers the advantage of immediate application with no need for membrane pretreatments and is easy to operate. Label-free SERS analysis helps to identify the binding sites of a specific drug due to the spectral variations, which holds great promise for understanding drug targets and has a wide range of potential applications in pharmacodynamics studies.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Omnidirectional Antireflective Coatings Fabricated via Freeze Casting of Chitin Nanofibers 通过冷冻铸造甲壳素纳米纤维制造全向抗反射涂层

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0464110.1021/acsanm.4c04641

Li Zhang, Zhiqing Hu, Lili Ren* and Jiang Zhou*,

引用次数: 0

One-Pot Synthesis of High-Quality CsPbI3 Nanoplatelets with Orange-Red Light Emission 一锅法合成具有橙红光发射功能的高质量 CsPbI3 纳米微块

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-25 DOI: 10.1021/acsanm.4c0400710.1021/acsanm.4c04007

Jiakang Hu, Qiaohui Ruan, Yanyu Cui, Siyuan Ye, Zhuohan Lin, Xue Zhang and Yan Li*,

{"title":"One-Pot Synthesis of High-Quality CsPbI3 Nanoplatelets with Orange-Red Light Emission","authors":"Jiakang Hu, Qiaohui Ruan, Yanyu Cui, Siyuan Ye, Zhuohan Lin, Xue Zhang and Yan Li*, ","doi":"10.1021/acsanm.4c0400710.1021/acsanm.4c04007","DOIUrl":"https://doi.org/10.1021/acsanm.4c04007https://doi.org/10.1021/acsanm.4c04007","url":null,"abstract":"CsPbI3 nanoplatelets (NPLs) are considered potential candidates for orange-red light-emitting materials due to their high exciton binding energy and narrow full width at half maximum (FWHM). However, the relatively low formation energy of CsPbI3 NPLs leads to rapid growth rates, posing a challenge for the controlled synthesis of high-quality CsPbI3 NPLs. Herein, we report the synthesis of high-quality CsPbI3 NPLs emitting orange-red light using a one-pot method under mild reaction conditions. The protonation of oleylamine (OAm) by introducing HI and the strong interaction between the octadecylphosphonic acid (ODPA) ligand and Pb2+ facilitate the anisotropic growth of CsPbI3 NPLs and enable precise control over the numbers of NPL layers, achieving the desired orange-red light emission. The resulting CsPbI3 NPLs exhibited a high photoluminescence quantum yield (PLQY) of up to 90%, a narrow FWHM of only 25 nm, and excellent stability at room temperature, under ultraviolet–visible light and in aqueous environments. The comprehensive study of the formation process of CsPbI3 NPLs enriches our understanding of the growth mechanism and provides a synthetic route for producing high-quality CsPbI3 NPLs.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhanced Polyaspartate Polyurea Reinforced with Boron Nitride Nanosheets for Protective Coatings 用氮化硼纳米片增强的聚天冬氨酸聚脲保护涂层

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-24 DOI: 10.1021/acsanm.4c0413910.1021/acsanm.4c04139

Qingshi Meng, Zhiyi Yuan, Jianbang Liu, Baozhu Wang, Fethi Abbassi and Sherif Araby*,

{"title":"Enhanced Polyaspartate Polyurea Reinforced with Boron Nitride Nanosheets for Protective Coatings","authors":"Qingshi Meng, Zhiyi Yuan, Jianbang Liu, Baozhu Wang, Fethi Abbassi and Sherif Araby*, ","doi":"10.1021/acsanm.4c0413910.1021/acsanm.4c04139","DOIUrl":"https://doi.org/10.1021/acsanm.4c04139https://doi.org/10.1021/acsanm.4c04139","url":null,"abstract":"The current study explores the advancements in mechanical and functional properties of polyaspartate polyurea (PAPU) for protective coating applications upon addition of boron nitride nanosheets (BNs).The mechanochemical approach was employed to synthesize BNs of thickness 3.32 nm, followed by successful chemical modification with m-xylylenediamine using microball milling. PAPU nanocomposites based on pristine BNs and modified BNs (m-BNs) were prepared and systematically investigated, showing exceptional mechanical properties and environmental reliability. Only 0.1 wt % of m-BNs increased the tensile strength, Young’s modulus, and elongation at break of PAPU by 56.7%, 41%, and 67.4%, respectively. Although Young’s modulus of polyurea continued to increase after 0.1 wt % m-BN, other properties start to drop due to aggregation. The impact strength of the aluminum substrate was increased by 22.2% after coating with 0.1 wt % PAPU/m-BNs nanocomposite, highlighting its suitability for metal protection. Furthermore, comprehensive environmental reliability tests demonstrated PAPU nanocomposites’ efficacy as robust protective coatings even after prolonged exposure to diverse chemical conditions. For example, the impact strength of neat PAPU and PAPU/m-BN composite, respectively, reduced by 25% and 9.9% after the salt-fog test. The study highlighted the importance of adding a reinforcing phase and chemical modification in PAPU nanocomposites in order to achieve high mechanical performance and multifunctional protective coatings.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Hybrid 3D Vertical Graphene Nanoflake and Aligned Carbon Nanotube Architectures for High-Energy-Density Lithium-Ion Batteries 用于高能量密度锂离子电池的混合三维垂直石墨烯纳米片和对齐碳纳米管架构

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-24 DOI: 10.1021/acsanm.4c0354710.1021/acsanm.4c03547

Tong-Bao Lv, Yu Kevin Dai, Long Tan*, Jing-Jian Zhang, Zhi-Qing Zhao, Kang-Ming Liao, Hao-Yu Wang, Shuguang Deng and Gui-Ping Dai*,

{"title":"Hybrid 3D Vertical Graphene Nanoflake and Aligned Carbon Nanotube Architectures for High-Energy-Density Lithium-Ion Batteries","authors":"Tong-Bao Lv, Yu Kevin Dai, Long Tan*, Jing-Jian Zhang, Zhi-Qing Zhao, Kang-Ming Liao, Hao-Yu Wang, Shuguang Deng and Gui-Ping Dai*, ","doi":"10.1021/acsanm.4c0354710.1021/acsanm.4c03547","DOIUrl":"https://doi.org/10.1021/acsanm.4c03547https://doi.org/10.1021/acsanm.4c03547","url":null,"abstract":"Here, we synthesized a type of three-dimensional (3D) carbon nanostructure through the plasma-enhanced chemical vapor deposition method, which was composed of carbon nanotubes (CNTs) and graphene nanoflakes (GNFs) embedded on the surface of CNTs. The CNTs have a typical hollow structure with an inner diameter of 15 nm, and the CNT@GNF were grown on vermiculite supported with an Fe–Mo catalyst. The diameter of CNTs and the amount of GNFs on the CNT surface can be controlled by adjusting the reaction time, radio frequency (RF) power, and growth temperature. The continuous bombardment of plasma results in a large number of defects on the surface of the CNTs. It was further confirmed that the radio frequency (RF) power played a key role on the generation of GNFs by providing sufficient carbon sources and creating defects as the active sites on surface of the CNTs. Moreover, small amounts (1.2%) of synthesized CNT@GNF material after purification were employed as an efficient conductive agent for the cathode with high contents of LiFePO4 (LFP) up to 95.8%. As a result, the CNT@GNF-based LFP electrode showed a superior electrochemical performance. After 450 cycles at a current density of 0.5 C, the battery exhibited a specific capacity of 100 mAh g–1, corresponding to a capacity retention rate of 87%. Additionally, a discharge capacity of 61 mAh g–1 can still be achieved at 10 C. The largely improved electrochemical performance should be ascribed to the well-established conductive networks by the CNT@GNF material in the electrode. Overall, we synthesized nanocarbons with a unique structure in a facile way, which is promising for the application in lithium-ion batteries.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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