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DNA Origami-Templated Gold Nanorod Dimer Nanoantennas: Enabling Addressable Optical Hotspots for Single Cancer Biomarker SERS Detection DNA Origami-Templated金纳米棒二聚体纳米天线:为单一癌症生物标记物 SERS 检测提供可寻址的光学热点
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-12 DOI: 10.1039/d4nr01110d
Tapasi Sen, Mridu Sharma, Charanleen Kaur, Priyanka Singhmar, Shikha Rai
{"title":"DNA Origami-Templated Gold Nanorod Dimer Nanoantennas: Enabling Addressable Optical Hotspots for Single Cancer Biomarker SERS Detection","authors":"Tapasi Sen, Mridu Sharma, Charanleen Kaur, Priyanka Singhmar, Shikha Rai","doi":"10.1039/d4nr01110d","DOIUrl":"https://doi.org/10.1039/d4nr01110d","url":null,"abstract":"The convergence of DNA origami and surface-enhanced Raman spectroscopy (SERS) has opened up a new avenue in bioanalytical sciences, particularly in the detection of single-molecule proteins. This breakthrough has enabled the development of advanced sensor technologies for diagnostics. DNA origami offers a highly controllable framework for the precise positioning of nanostructures, resulting in superior SERS signal amplification. In our investigation, we have successfully designed and synthesized DNA origami-based gold nanorod monomer and dimer assemblies. Moreover, we have evaluated the potential of dimer assemblies for label-free detection of single biomolecule of Epidermal growth factor receptor (EGFR), a crucial biomarker in cancer research. Our findings have revealed that the significant Raman amplification generated by DNA origami-assembled gold nanorod dimer nanoantennas facilitates the label-free identification of Raman peaks of single proteins, which is a prime aim in biomedical diagnostics. The present work represents a significant advancement in leveraging plasmonic nanoantennas to realize single protein SERS for the detection of various cancer biomarkers with single-molecule sensitivity.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597390","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
Molecular-level periodic arrays of long-chain poly (3-hexylthiophene-2,5-diyl) driven by electric field 电场驱动的长链聚(3-己基噻吩-2,5-二基)分子级周期阵列
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-12 DOI: 10.1039/d4nr01900h
Mingze Ma, Jingyi Qian, Ke Jiang, Liyan Wang, Yu Song, Wenke Zhang
{"title":"Molecular-level periodic arrays of long-chain poly (3-hexylthiophene-2,5-diyl) driven by electric field","authors":"Mingze Ma, Jingyi Qian, Ke Jiang, Liyan Wang, Yu Song, Wenke Zhang","doi":"10.1039/d4nr01900h","DOIUrl":"https://doi.org/10.1039/d4nr01900h","url":null,"abstract":"Two-dimensional (2D) periodic arrays of conductive polymers represent an attractive platform for wiring functional molecules into the integrated circuits of molecular electronics. However, the large-scale assembly of polymer periodic arrays at molecular level faces challenges such as curling, twisting, and aggregation. Here, we assembled the periodic arrays of long-chain poly(3-hexylthiophene-2,5-diyl) (P3HT, Mw = 65 k) at the solid-liquid interface by applying the electric field, in which the charged chain segments were aligned. The atomic force microscopy (AFM) imaging revealed that individual P3HT chains assemble into monolayers featuring a face-on orientation, extended chain conformation and isolated packing, which is thermodynamically more stable than folded chains in 2D polycrystals. The assembly process initiates with the formation of disordered clusters and progresses through voltage-dependent nucleation and growth of extended-chain arrays, wherein continuous conformational adjustments along the nucleation pathway exhibit the dependence on the cluster size.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597388","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
Electrocatalytic Nitrogen Reduction to Ammonia by Atomically Precise Cu6 Nanoclusters Supported on Graphene Oxide 以石墨烯氧化物为支撑的原子级精密 Cu6 纳米团簇电催化氮还原成氨
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-12 DOI: 10.1039/d4nr01984a
Aamir Shehzad, Chaonan Cui, Ran Cheng, Zhixun Luo
{"title":"Electrocatalytic Nitrogen Reduction to Ammonia by Atomically Precise Cu6 Nanoclusters Supported on Graphene Oxide","authors":"Aamir Shehzad, Chaonan Cui, Ran Cheng, Zhixun Luo","doi":"10.1039/d4nr01984a","DOIUrl":"https://doi.org/10.1039/d4nr01984a","url":null,"abstract":"The electrocatalytic nitrogen reduction reaction (NRR) enables the production of ammonia by the use of renewable energy, providing a direct method for nitrogen fixation. Nevertheless, the NRR process under ambient conditions is often impeded by inertness of N2 and the occurrence of hydrogen evolution as a byproduct in aqueous electrolytes, resulting in a diminished reaction rate and reduced efficiency. In this study, we synthesized Cu6(SMPP)6 nanoclusters (Cu6 NCs for short) and immobilized them on graphene oxide (GO) to investigate their electrocatalytic nitrogen reduction reaction (ENRR) using an H-cell setup. The GO-supported Cu6 NCs exhibit enhanced catalysis with a high NH3 yield rate of 4.8 µg‧h-1cm-2 and a high Faradaic efficiency up to 30.39% at -1.1 V. Quantum chemistry calculations reveal that the Cu6S6 cluster on GO support facilitates the N2 adsorption and N≡N bond activation with a surmountable energy barrier for the potential-determining step (N2* →NNH*).","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597387","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
Ferroelectric modulation of CuCo2O4 nanorods for controllable alkaline water electrolysis. 用于可控碱性水电解的 CuCo2O4 纳米棒铁电调制。
IF 5.8 3区 材料科学
Nanoscale Pub Date : 2024-07-12 DOI: 10.1039/d4nr01320d
Ruixue Zhang, Jing Wang, Qiyan Sun, Fuyuan Cao, Guang-Rui Xu, Yu Miao, Chuanfang Zhang, Zexing Wu, Lei Wang
{"title":"Ferroelectric modulation of CuCo<sub>2</sub>O<sub>4</sub> nanorods for controllable alkaline water electrolysis.","authors":"Ruixue Zhang, Jing Wang, Qiyan Sun, Fuyuan Cao, Guang-Rui Xu, Yu Miao, Chuanfang Zhang, Zexing Wu, Lei Wang","doi":"10.1039/d4nr01320d","DOIUrl":"https://doi.org/10.1039/d4nr01320d","url":null,"abstract":"<p><p>As a technology for emerging environmental applications, water electrolysis is a significant approach for producing clean hydrogen energy. In this work, we used an efficacious piezoelectric method to significantly improve the catalytic water splitting activity without affecting the morphology as well as the components by altering the bulk charge separation state inside the material. The obtained CuCo<sub>2</sub>O<sub>4</sub> nanorods were treated under a corona polarization apparatus, which significantly enhanced ferroelectricity relative to that before the polarization increasing the physical charge separation and piezoelectric potential energy, enhancing the green hydrogen production. The polarized CuCo<sub>2</sub>O<sub>4</sub> nanorods exhibit excellent water electrolysis performance under alkaline conditions, with hydrogen evolution overpotential of 78.7 mV and oxygen evolution overpotential of 299 mV at 10 mA cm<sup>-2</sup>, which is much better than that of unpolarized CuCo<sub>2</sub>O<sub>4</sub> nanorods. Moreover, the Tafel slopes of polarized CuCo<sub>2</sub>O<sub>4</sub> nanorods are 86.9 mV dec<sup>-1</sup> in the HER process and 73.1 mV dec<sup>-1</sup> in the OER process, which are much lower than commercial catalysts of Pt/C (88.0 mV dec<sup>-1</sup> for HER) or RuO<sub>2</sub> (78.5 mV dec<sup>-1</sup> for OER), proving faster kinetic on polarized CuCo<sub>2</sub>O<sub>4</sub> nanorods due to their higher electroconductibility and intrinsic activity. In particular, polarized CuCo<sub>2</sub>O<sub>4</sub> nanorods are identified as promising catalysts for water electrolysis with robust stability, offering outstanding catalytic performance and excellent energy efficiency.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588956","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
Using non-adiabatic excitation transfer for signal transmission between molecular logic gates 利用非绝热激发传递实现分子逻辑门之间的信号传输
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr01206b
Arthur Ilich Martynov, Aleksandr Sergeevich Belov, Vladimir Kirilovich Nevolin
{"title":"Using non-adiabatic excitation transfer for signal transmission between molecular logic gates","authors":"Arthur Ilich Martynov, Aleksandr Sergeevich Belov, Vladimir Kirilovich Nevolin","doi":"10.1039/d4nr01206b","DOIUrl":"https://doi.org/10.1039/d4nr01206b","url":null,"abstract":"Molecular logic gates (MLG) are molecules which perform logic operations. They can potentially be used as building blocks for nano sized computational devices. However, their physical and functional integration is a difficult task which remains to be solved. The problem lies in the field of signal exchange between the gates within the system. We propose using non-adiabatic excitation transfer between the gates to address this problem while absorption and fluorescence are left to communicate with external devices. Excitation transfer was studied using the modified Bixon-Jortner- Plotnikov theory on the example of the 3H-thioxanthene-TTF-dibenzo-BODIPY covalently linked triade. Several designs of the molecule were studied in vacuum and cyclohexane. It was found that the molecular logic system has to be planar and rigid to isolate radiative interfaces from other gates. Functioning of these gates is based on dark πσ∗-states in contrast to bright ππ∗-states of radiative interfaces. There are no fundamental difference between ππ∗ → πσ∗ and ππ∗ → ππ∗ transitions for cases when an exciton hopes from one gate to another. The rates of such transitions depend only on an energy gap between states and a distance between gates. A circuit is highly sensitive to the choice of solvent which could rearrange its state structure thereby altering its behavior. According to the obtained results, non-adiabatic transfer can be considered as one of the possible ways for transmitting a signal between MLGs.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597392","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
2-mercaptobenzothiazole and 2-mercaptobenzimidazole derived novel Ag16 and Ag18 nanoclusters: Synthesis and optical properties 2-巯基苯并噻唑和 2-巯基苯并咪唑衍生的新型 Ag16 和 Ag18 纳米团簇:合成与光学特性
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr01606h
Bedanta Borah, Rohan Sharma, Pankaz K. Sharma, Apurba Kr Barman
{"title":"2-mercaptobenzothiazole and 2-mercaptobenzimidazole derived novel Ag16 and Ag18 nanoclusters: Synthesis and optical properties","authors":"Bedanta Borah, Rohan Sharma, Pankaz K. Sharma, Apurba Kr Barman","doi":"10.1039/d4nr01606h","DOIUrl":"https://doi.org/10.1039/d4nr01606h","url":null,"abstract":"Silver and gold nanoclusters are promising nanomaterials for various applications such as sensing, catalysis, and bioimaging. However, their synthetic control and repeatability, and determination of their structures are highly complicated. Only a handful of crystal structures of silver nanoclusters (AgNCs) are reported till date, while structures of few others have been reported with the help of mass spectrometry. We synthesized two AgNCs, viz., Ag-MBTNC (Ag16 cluster) and Ag-MBINC (Ag18 cluster) stabilized by 2-mercaptobenzothiazole (2-MBT) and 2-mercaptobenzimidazole (2-MBI) with excellent repeatability; determined their composition and plausible structures using XPS, TGA and MALDI-TOF mass spectrometry and compared their optical properties. Interestingly, Ag-MBTNC is fluorescent while Ag-MBINC is not, although these are synthesized using stabilizing ligand having difference in only one atom. The structural features of the clusters are found to be similar but have contrasting optical behaviors due to the effect of a S atom (in 2-MBT) in place of a N atom (in 2-MBI).","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584300","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
Theranostic nanogels: multifunctional agents for simultaneous therapeutic delivery and diagnostic imaging. Theranostic 纳米凝胶:用于同时进行治疗和诊断成像的多功能制剂。
IF 5.8 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr01423e
Ismail Altinbasak, Yasin Alp, Rana Sanyal, Amitav Sanyal
{"title":"Theranostic nanogels: multifunctional agents for simultaneous therapeutic delivery and diagnostic imaging.","authors":"Ismail Altinbasak, Yasin Alp, Rana Sanyal, Amitav Sanyal","doi":"10.1039/d4nr01423e","DOIUrl":"https://doi.org/10.1039/d4nr01423e","url":null,"abstract":"<p><p>In recent years, there has been a growing interest in multifunctional theranostic agents capable of delivering therapeutic payloads while facilitating simultaneous diagnostic imaging of diseased sites. This approach offers a comprehensive strategy particularly valuable in dynamically evolving diseases like cancer, where combining therapy and diagnostics provides crucial insights for treatment planning. Nanoscale platforms, specifically nanogels, have emerged as promising candidates due to their stability, tunability, and multifunctionality as carriers. As a well-studied subgroup of soft polymeric nanoparticles, nanogels exhibit inherent advantages due to their size and chemical compositions, allowing for passive and active targeting of diseased tissues. Moreover, nanogels loaded with therapeutic and diagnostic agents can be designed to respond to specific stimuli at the disease site, enhancing their efficacy and specificity. This capability enables fine-tuning of theranostic platforms, garnering significant clinical interest as they can be tailored for personalized treatments. The ability to monitor tumor progression in response to treatment facilitates the adaptation of therapies according to individual patient responses, highlighting the importance of designing theranostic platforms to guide clinicians in making informed treatment decisions. Consequently, the integration of therapy and diagnostics using theranostic platforms continues to advance, offering intelligent solutions to address the challenges of complex diseases such as cancer. In this context, nanogels capable of delivering therapeutic payloads and simultaneously armed with diagnostic modalities have emerged as an attractive theranostic platform. This review focuses on advances made toward the fabrication and utilization of theranostic nanogels by highlighting examples from recent literature where their performances through a combination of therapeutic agents and imaging methods have been evaluated.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578325","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
“Clicking” trimeric peptides onto hybrid T8POSS nanocages and identifying synthesis limitations 将三聚肽 "点击 "到混合 T8POSS 纳米笼上并确定合成限制
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr01685h
Lewis R Anderson, Ann P Hunter, Matthew Kershaw, Sergey Y Bylikin, James Bowen, Peter Taylor, Martin Birchall, Nazia Mehrban
{"title":"“Clicking” trimeric peptides onto hybrid T8POSS nanocages and identifying synthesis limitations","authors":"Lewis R Anderson, Ann P Hunter, Matthew Kershaw, Sergey Y Bylikin, James Bowen, Peter Taylor, Martin Birchall, Nazia Mehrban","doi":"10.1039/d4nr01685h","DOIUrl":"https://doi.org/10.1039/d4nr01685h","url":null,"abstract":"Macromolecule branching upon polyhedral oligomeric silsesquioxanes (POSS) via “click” chemistry has previously been reported for promoting natural biological responses in vitro, particularly when regarding thier demonstrated biocompatibility and structural robustness as potential macromolecule anchoring points. However, ”clicking” of large molecules around POSS structures uncovers two main challenges; (1) a synthetic challenge encompassing multi-covalent attachment of macromolecules to a single nanoscale-central position, and (2) purification and separation of fully adorned nanocages from those that are incomplete due to their similar physical characteristics. Here we present peptide decoration to a T8POSS nanocage through the attachment of azido-modified trimers. Triglycine- and trialanine-methyl esters “clicked” to 97% and 92% completion, respectively, resulting in 84% and 68% yields of the fully-adorned octamers. The “clicks” halt within 27-hrs of the reaction time, and efforts to further increase the octamer yield were of negligible benefit. Exploration of reaction conditions reveals multiple factors preventing full octa-arm modification to all available POSS nanocages, and offers insights into macromolecule attachment between both peptides and small organic-inorganic structures, all of which require consideration for future work of this nature.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584426","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
Controllable Synthesis of Hollow Mesoporous Organosilica Nanoparticles with Pyridine-2,6-Bis-Imidazolium Frameworks for CO2 Conversion 中空介孔有机硅纳米颗粒与吡啶-2,6-双咪唑框架的可控合成,用于二氧化碳转化
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr02144d
Ghazale Anvarian-Asl, Sadegh Joudian, Stefano Todisco, Piero Mastrorilli, Mojtaba Khorasani
{"title":"Controllable Synthesis of Hollow Mesoporous Organosilica Nanoparticles with Pyridine-2,6-Bis-Imidazolium Frameworks for CO2 Conversion","authors":"Ghazale Anvarian-Asl, Sadegh Joudian, Stefano Todisco, Piero Mastrorilli, Mojtaba Khorasani","doi":"10.1039/d4nr02144d","DOIUrl":"https://doi.org/10.1039/d4nr02144d","url":null,"abstract":"A series of hard-template-derived hollow mesoporous organosilica nanoparticles (HMONs) with pyridine-2,6-bis-imidazolium frameworks have been described for the first time. As a part of the investigation, to evaluate the effects of the hard template nature, the Si/CTAB and organosilica/TEOS molar ratio, and the stepwise addition of precursors, four reaction conditions as methods A-D were designed. In the presence of polystyrene latex as a hard template, the HMONS that we wished to synthesize were not yielded with a Si/CTAB molar ratio of 3 (method A), but we could synthesize the desired HMONs with a Si/CTAB molar ratio of 9 and an organosilica:TEOS ratio of 1:99 (method B). The ratio of organosilica to TEOS could be improved up to 2.5:97.5 if the precursor additions are made in a stepwise manner rather than simultaneous additions (method C). By using sSiO2 as a hard template, yolk-shell morphology was observed by adopting a Si/CTAB molar ratio of 3 (method D). The HMONs were modified by iodide ions their activity was explored toward the coupling of CO2 with epoxides. Among the catalysts, I-HMON-L-C-2.5 exhibited excellent results under mild reaction conditions. Well-oriented pore sizes and short channel length facilitated easy mass transfer from one side and the integration of the hollow regions interior of the catalyst particles from the other side improved CO2 retention time around pores where the imidazolium organocatalysts were located, which made I-HMON-L-C-2.5 an effective catalyst for title CO2 utilization. The catalyst was reused at least six times without exhibiting any changes in activity. The HMON can be also used as a solid CNC ligand for the preparation of copper catalyst for the click reaction between phenyl acetylene and benzyl azide.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584428","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
A novel nitrogen-doped carbon-coated SnSe2 based on post-synthetic modified MOF as high-performance anode materials for lithium-ion batteries and sodium-ion batteries 基于后合成修饰 MOF 的新型氮掺杂碳涂层 SnSe2 作为锂离子电池和钠离子电池的高性能负极材料
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-07-11 DOI: 10.1039/d4nr02418d
Zhiyuan Chen, Zhe Zhang, Longzhen Wang, Yifei Li, Yiting Wang, Yichuan Rui, Ailing Song, Min Li, Yinyu Xiang, Kaibin Chu, Lei Jiang, Bohejin Tang, Ning Han, Guoxiu Wang, Hao Tian
{"title":"A novel nitrogen-doped carbon-coated SnSe2 based on post-synthetic modified MOF as high-performance anode materials for lithium-ion batteries and sodium-ion batteries","authors":"Zhiyuan Chen, Zhe Zhang, Longzhen Wang, Yifei Li, Yiting Wang, Yichuan Rui, Ailing Song, Min Li, Yinyu Xiang, Kaibin Chu, Lei Jiang, Bohejin Tang, Ning Han, Guoxiu Wang, Hao Tian","doi":"10.1039/d4nr02418d","DOIUrl":"https://doi.org/10.1039/d4nr02418d","url":null,"abstract":"SnSe2 with high theoretical capacity has been identified as an emerging anode candidate for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). However, the rate and cycling performance of this material in practical applications is still limited by unavoidable volume expansion and low conductivity. In this paper, Sn-MOF was modified using 2-aminoterephthalic acid (C8H7NO4) to replace solvent sites in MOF clusters to improve electrochemical stability, for improving conductivity heat-treated with selenium powder to synthesize nitrogen-doped carbon-coated SnSe2/C-N composites. The inherited carbon skeleton from Sn-MOF precursor can alleviate the volume expansion of SnSe2/C-N during cycling. N-doping in Sn-MOF can increase the positive and negative electrostatic potential energy regions on the molecular surface to further improve the electrical conductivity, and effectively reduce the binding energy with Li+/Na+ which obtained by Density Functional theory (DFT) methods. In addition, N-doping carbon skeleton also introduces a larger space for Li+/Na+ intercalation and enhance the mechanical properties. In particular, the post-synthesis modified MOF-derived SnSe2/C-N materials exhibit excellent cyclability, with a reversible capacity of 695 mAh·g-1 for LIB and 259 mAh·g-1 for SIB after 100 cycles at 100 mA·g-1.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584430","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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