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Anisotropic van der Waals Tellurene-Based Multifunctional, Polarization-Sensitive, In-Line Optical Device 基于各向异性范德华碲的多功能、偏振敏感型在线光学器件
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.4c03973
Jing Yu, Haoran Mu, Pu Wang, Haozhe Li, Zixin Yang, Jing Ren, Yang Li, Luyao Mei, Jingni Zhang, Wenzhi Yu, Nan Cui, Jian Yuan, Jian Wu, Sheng Lan, Guangyu Zhang, Shenghuang Lin
{"title":"Anisotropic van der Waals Tellurene-Based Multifunctional, Polarization-Sensitive, In-Line Optical Device","authors":"Jing Yu, Haoran Mu, Pu Wang, Haozhe Li, Zixin Yang, Jing Ren, Yang Li, Luyao Mei, Jingni Zhang, Wenzhi Yu, Nan Cui, Jian Yuan, Jian Wu, Sheng Lan, Guangyu Zhang, Shenghuang Lin","doi":"10.1021/acsnano.4c03973","DOIUrl":"https://doi.org/10.1021/acsnano.4c03973","url":null,"abstract":"Polarization plays a paramount role in scaling the optical network capacity. Anisotropic two-dimensional (2D) materials offer opportunities to exploit optical polarization-sensitive responses in various photonic and optoelectronic applications. However, the exploration of optical anisotropy in fiber in-line devices, critical for ultrafast pulse generation and modulation, remains limited. In this study, we present a fiber-integrated device based on a single-crystalline tellurene nanosheet. Benefiting from the chiral-chain crystal lattice and distinct optical dichroism of tellurene, multifunctional optical devices possessing diverse excellent properties can be achieved. By inserting the in-line device into a 1.5 μm fiber laser cavity, we generated both linearly polarized and dual-wavelength mode-locking pulses with a degree of polarization of 98% and exceptional long-term stability. Through a twisted configuration of two tellurene nanosheets, we realized an all-optical switching operation with a fast response. The multifunctional device also serves as a broadband photodetector. Notably, bipolar polarization encoding communication at 1550 nm can be achieved without any external voltage. The device’s multifunctionality and stability in ambient environments established a promising prototype for integrating polarization as an additional physical dimension in fiber optical networks, encompassing diverse applications in light generation, modulation, and detection.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Real-Time Observation for MoS2 Growth Kinetics and Mechanism Promoted by the Na Droplet 实时观测 Na 液滴促进 MoS2 生长的动力学和机制
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.4c05586
Jehyun Oh, Minsuk Park, Yoonbeen Kang, Sang-Yong Ju
{"title":"Real-Time Observation for MoS2 Growth Kinetics and Mechanism Promoted by the Na Droplet","authors":"Jehyun Oh, Minsuk Park, Yoonbeen Kang, Sang-Yong Ju","doi":"10.1021/acsnano.4c05586","DOIUrl":"https://doi.org/10.1021/acsnano.4c05586","url":null,"abstract":"While the molten salt-catalyzed chemical vapor deposition (CVD) technique is recognized for its effectiveness in producing large-area transition metal chalcogenides, understanding their growth mechanisms involving alkali metals remains a challenge. Here, we investigate the kinetics and mechanism of sodium-catalyzed molybdenum disulfide (MoS<sub>2</sub>) growth and etching through image analysis conducted using an integrated CVD microscope. Sodium droplets, agglomerated via the thermal decomposition of the sodium cholate dispersant, catalyze the precipitation of supersaturated MoS<sub>2</sub> laminates and induce growth despite fragmentation during this process. Triangular MoS<sub>2</sub> crystals display a distinct self-exhausting exponential behavior and slow growth of thermodynamically favorable crystallographic faces, exhibiting a sulfur-dominant pressure. The growth and etching processes are facilitated by the scooting of sodium droplets along grain edges, displaying comparable rates. Leveraging these kinetics makes it possible to engineer atypical MoS<sub>2</sub> shapes. This combined microscope not only enhances the understanding of growth mechanisms but also contributes to the facile development of next-generation nanomaterials.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 pressure suppression of plasticity due to an overabundance of shear embryo formation 剪切胚形成过多导致高压抑制可塑性
IF 9.7 1区 材料科学
npj Computational Materials Pub Date : 2024-07-13 DOI: 10.1038/s41524-024-01348-w
Brenden W. Hamilton, Timothy C. Germann
{"title":"High pressure suppression of plasticity due to an overabundance of shear embryo formation","authors":"Brenden W. Hamilton, Timothy C. Germann","doi":"10.1038/s41524-024-01348-w","DOIUrl":"https://doi.org/10.1038/s41524-024-01348-w","url":null,"abstract":"<p>High pressure shear band formation is a critical phenomenon in energetic materials due to its influence on both mechanical strength and mechanochemical activation. While shear banding is known to occur in a variety of these materials, the governing dynamics of the mechanisms are not well defined for molecular crystals. We conduct molecular dynamics simulations of shock wave induced shear band formation in the energetic material 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) to assess shear band nucleation processes. We find, that at high pressures, the initial formation sites for shear bands, “embryos”, form in excess and rapidly lower deviatoric stresses prior to shear band formation and growth. This results in the suppression of plastic deformation. A local cluster analysis is used to quantify and contrast this mechanism with a more typical shear banding seen at lower pressures. These results demonstrate a mechanism that is reversible in nature and that supersedes shear band formation at increased pressures. We anticipate that these results will have a broad impact on the modeling and development of high-strain rate application materials such as those for high explosives and hypersonic systems.</p>","PeriodicalId":19342,"journal":{"name":"npj Computational Materials","volume":null,"pages":null},"PeriodicalIF":9.7,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
All-Solution-Processed Electronics with Sub-Microscale Resolution and Nanoscale Fidelity Fabricated Via a Humidity-Controlled, Surface Energy-Directed Assembly Process 通过湿度控制、表面能引导的组装工艺制造出具有亚微米级分辨率和纳米级保真度的全溶液加工电子器件
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.4c04936
Jingwei Zhang, Guangji Wang, Zhimin Chai, Zetong Li, Siqing Yuan, Yihuan Wang, Yi Ding, Taohan Sun, Tongqing Wang, Dewen Zhao, Ahmed A. Busnaina, Tian-Ling Ren, Xinchun Lu
{"title":"All-Solution-Processed Electronics with Sub-Microscale Resolution and Nanoscale Fidelity Fabricated Via a Humidity-Controlled, Surface Energy-Directed Assembly Process","authors":"Jingwei Zhang, Guangji Wang, Zhimin Chai, Zetong Li, Siqing Yuan, Yihuan Wang, Yi Ding, Taohan Sun, Tongqing Wang, Dewen Zhao, Ahmed A. Busnaina, Tian-Ling Ren, Xinchun Lu","doi":"10.1021/acsnano.4c04936","DOIUrl":"https://doi.org/10.1021/acsnano.4c04936","url":null,"abstract":"Solution-based processes have received considerable attention in the fabrication of electronics and sensors owing to their merits of being low-cost, vacuum-free, and simple in equipment. However, the current solution-based processes either lack patterning capability or have low resolution (tens of micrometers) and low pattern fidelity in terms of line edge roughness (LER, several micrometers). Here, we present a surface energy-directed assembly (SEDA) process to fabricate metal oxide patterns with up to 2 orders of magnitude improvement in resolution (800 nm) and LER (16 nm). Experiment results show that high pattern fidelity can be achieved only at low relative humidities of below 30%. The reason for this phenomenon lies in negligible water condensation on the solution droplet. Employing the SEDA process, all-solution-processed metal oxide thin film transistors (TFTs) are fabricated by using indium oxide as channel layers, indium tin oxide as source/drain electrodes and gate electrodes, and aluminum oxide as gate dielectrics. TFT-based logic gate circuits, including NOT, NOR, NAND, and AND are fabricated as well, demonstrating the applicability of the SEDA process in fabricating large area functional electronics.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Intrinsically Patterned Two-Dimensional Transition Metal Halides 本征图案化二维过渡金属卤化物
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.3c09580
Feifei Xiang, Neeta Bisht, Binbin Da, Mohammed S. G. Mohammed, Christian Neiss, Andreas Görling, Sabine Maier
{"title":"Intrinsically Patterned Two-Dimensional Transition Metal Halides","authors":"Feifei Xiang, Neeta Bisht, Binbin Da, Mohammed S. G. Mohammed, Christian Neiss, Andreas Görling, Sabine Maier","doi":"10.1021/acsnano.3c09580","DOIUrl":"https://doi.org/10.1021/acsnano.3c09580","url":null,"abstract":"Patterning and defect engineering are key methods for tuning the properties and enabling distinctive functionalities in two-dimensional (2D) materials. However, generating 2D periodic patterns of point defects in 2D materials, such as vacancy lattices that can serve as antidot lattices, has been elusive until now. Herein, we report on 2D transition metal dihalides epitaxially grown on metal surfaces featuring periodically assembled halogen vacancies that result in alternating coordination of the transition metal atom. Using low-temperature scanning probe microscopy and low-energy electron diffraction, we identified the structural properties of intrinsically patterned FeBr<sub>2</sub> and CoBr<sub>2</sub> monolayers grown epitaxially on Au(111). Density functional theory reveals that Br vacancies are facilitated by low formation energies, and the formation of a vacancy lattice results in a substantial decrease in the lattice mismatch with the underlying Au(111). We demonstrate that interfacial strain engineering presents a versatile strategy for controlled patterning in two dimensions with atomic precision over several hundred nanometers to solve a long-standing challenge of growing atomically precise antidot lattices. In particular, patterning of 2D materials containing transition metals provides a versatile method to achieve unconventional spin textures with noncollinear spin.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Three-Dimensional Label-Free Observing of the Self-Assembled Nanoparticles inside a Single Cell at Nanoscale Resolution 以纳米级分辨率无标签三维观测单细胞内的自组装纳米粒子
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.4c06095
Huige Zhou, Yuecong Guo, Tianyu Fu, Yufeng Peng, Ziwei Chen, Yanyan Cui, Mengyu Guo, Kai Zhang, Chunying Chen, Yaling Wang
{"title":"Three-Dimensional Label-Free Observing of the Self-Assembled Nanoparticles inside a Single Cell at Nanoscale Resolution","authors":"Huige Zhou, Yuecong Guo, Tianyu Fu, Yufeng Peng, Ziwei Chen, Yanyan Cui, Mengyu Guo, Kai Zhang, Chunying Chen, Yaling Wang","doi":"10.1021/acsnano.4c06095","DOIUrl":"https://doi.org/10.1021/acsnano.4c06095","url":null,"abstract":"Understanding the intracellular behavior of nanoparticles (NPs) plays a key role in optimizing the self-assembly performance of nanomedicine. However, conducting the 3D, label-free, quantitative observation of self-assembled NPs within intact single cells remains a substantial challenge in complicated intracellular environments. Here, we propose a deep learning combined synchrotron radiation hard X-ray nanotomography approach to visualize the self-assembled ultrasmall iron oxide (USIO) NPs in a single cell. The method allows us to explore comprehensive information on NPs, such as their distribution, morphology, location, and interaction with cell organelles, and provides quantitative analysis of the heterogeneous size and morphologies of USIO NPs under diverse conditions. This label-free, in situ method provides a tool for precise characterization of intracellular self-assembled NPs to improve the evaluation and design of a bioresponsive nanomedicine.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Electrocatalysts work better in lean-electrolyte lithium‒sulfur batteries 电催化剂在贫电解质锂硫电池中效果更佳
IF 11.9 2区 材料科学
Journal of Materials Chemistry A Pub Date : 2024-07-13 DOI: 10.1039/d4ta01997k
Jia-Jia Zhao, Zi-Xian Chen, Qian Cheng, Meng Zhao, Xinzhi Ma, Xue-Qiang Zhang, Jia-Qi Huang, Bo-Quan Li
{"title":"Electrocatalysts work better in lean-electrolyte lithium‒sulfur batteries","authors":"Jia-Jia Zhao, Zi-Xian Chen, Qian Cheng, Meng Zhao, Xinzhi Ma, Xue-Qiang Zhang, Jia-Qi Huang, Bo-Quan Li","doi":"10.1039/d4ta01997k","DOIUrl":"https://doi.org/10.1039/d4ta01997k","url":null,"abstract":"Reducing electrolyte usage constitutes the prerequisite to construct high-energy-density lithium‒sulfur (Li‒S) batteries. However, the cathode kinetics is severely blocked under lean-electrolyte conditions. Electrocatalysts have been widely employed to boost the cathode kinetics, yet their effectiveness under lean-electrolyte conditions remains unclear. Herein, the cathode kinetics promotion effectiveness of electrocatalysts is systematically evaluated in lean-electrolyte Li‒S batteries. The kinetics promotion effects on both liquid‒liquid and liquid‒solid conversions are more prominent at higher sulfur concentrations using the titanium nitride (TiN) electrocatalyst. Similarly, discharge capacity increment and cell polarization decrease afforded by the TiN electrocatalyst are more significant in lean-electrolyte Li‒S batteries than the flooded-electrolyte ones. Polarization decoupling analysis further identifies activation polarization as the main challenge under lean-electrolyte conditions, which can be effectively overcome by the TiN electrocatalyst. Moreover, the energy density of 2 Ah Li–S pouch cells increases by 19% using TiN electrocatalyst. This work elucidates electrocatalysts are more effective in lean-electrolyte Li–S batteries and highlights advanced electrocatalyst design for high-energy-density Li–S batteries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":11.9,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602672","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
Development of Granzyme B-targeted Smart Positron Emission Tomography Probes for Monitoring Tumor Early Response to Immunotherapy 开发颗粒酶 B 靶向智能正电子发射断层扫描探针,用于监测肿瘤对免疫疗法的早期反应
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2024-07-13 DOI: 10.1021/acsnano.4c01157
Jiayu Fu, Hongjie Xi, Shuyue Cai, Ying Peng, Qingzhu Liu, Ling Qiu, Jianguo Lin
{"title":"Development of Granzyme B-targeted Smart Positron Emission Tomography Probes for Monitoring Tumor Early Response to Immunotherapy","authors":"Jiayu Fu, Hongjie Xi, Shuyue Cai, Ying Peng, Qingzhu Liu, Ling Qiu, Jianguo Lin","doi":"10.1021/acsnano.4c01157","DOIUrl":"https://doi.org/10.1021/acsnano.4c01157","url":null,"abstract":"Granzyme B is an immune-related biomarker that closely correlates with cytotoxic T lymphocytes (CTLs), and hence detecting the expression level of granzyme B can provide a dependable scheme for clinical immune response assessment. In this study, two positron emission tomography (PET) probes [<sup>18</sup>F]SF-M-14 and [<sup>18</sup>F]SF-H-14 targeting granzyme B are designed based on the intramolecular cyclization scaffold SF. [<sup>18</sup>F]SF-M-14 and [<sup>18</sup>F]SF-H-14 can respond to granzyme B and glutathione (GSH) to conduct intramolecular cyclization and self-assemble into nanoaggregates to enhance the retention of probe at the target site. Both probes are prepared with high radiochemical purity (&gt;98%) and high stability in PBS and mouse serum. In 4T1 cells cocultured with T lymphocytes, [<sup>18</sup>F]SF-M-14 and [<sup>18</sup>F]SF-H-14 reach the maximum uptake of 6.71 ± 0.29 and 3.47 ± 0.09% ID/mg at 0.5 h, respectively, but they remain below 1.95 ± 0.22 and 1.47 ± 0.21% ID/mg in 4T1 cells without coculture of T lymphocytes. <i>In vivo</i> PET imaging shows that the tumor uptake in 4T1-tumor-bearing mice after immunotherapy is significantly higher (3.5 times) than that in the untreated group. The maximum tumor uptake of [<sup>18</sup>F]SF-M-14 and [<sup>18</sup>F]SF-H-14 in the mice treated with BEC was 4.08 ± 0.16 and 3.43 ± 0.12% ID/g, respectively, while that in the untreated mice was 1.04 ± 0.79 and 1.41 ± 0.11% ID/g, respectively. These results indicate that both probes have great potential in the early evaluation of clinical immunotherapy efficacy.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":null,"pages":null},"PeriodicalIF":17.1,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
F-coordinated Single-atom Ru Species: Efficient and Durable Catalysts for Photo-Thermal Synergistic Catalytic CO2 Hydrogenation to Methane F 配位单原子 Ru 物种:光热协同催化 CO2 加氢制甲烷的高效持久催化剂
IF 11.9 2区 材料科学
Journal of Materials Chemistry A Pub Date : 2024-07-13 DOI: 10.1039/d4ta02984d
Yunxiang Tang, Hao Wang, Chan Guo, Lige Wang, Tingting Zhao, Zhengyi Yang, Shikang Xiao, Jiurong Liu, Yanyan Jiang, Yufei Zhao, Xiaodong Wen, Fenglong Wang
{"title":"F-coordinated Single-atom Ru Species: Efficient and Durable Catalysts for Photo-Thermal Synergistic Catalytic CO2 Hydrogenation to Methane","authors":"Yunxiang Tang, Hao Wang, Chan Guo, Lige Wang, Tingting Zhao, Zhengyi Yang, Shikang Xiao, Jiurong Liu, Yanyan Jiang, Yufei Zhao, Xiaodong Wen, Fenglong Wang","doi":"10.1039/d4ta02984d","DOIUrl":"https://doi.org/10.1039/d4ta02984d","url":null,"abstract":"Elucidating the correlation between coordination structures and catalytic performances of single-atom active site is imperative for the precise design of highly efficient catalysts; however, the feasible regulation of coordination environment in single-atom catalysts presents a formidable challenge. Herein, we fabricate single-atom Ru-based catalysts with Ru-F4 and Ru-O4 configurations (named as Ru-F4 SAs/PA and Ru-O4 SAs/PA, respectively), showcasing fine-tuning of the coordination structure of Ru sites can significantly enhance performances for CO2 hydrogenation to methane under mild conditions in a photo-thermal synergistic catalytic process. Comparative studies reveal that Ru-F4 SAs/PA outperformed Ru-O4 SAs/PA counterparts, giving a superior CO2 methanation performances with CH4 production rate of 47.4 mmol gcat−1 h−1 and CH4 selectivity of 93.8% at 200 ℃ in the presence of light irradiation (200-1100 nm, 1.9 W cm−2) under atmospheric pressure. Theoretical investigations unravel that the transition from Ru-O4 to Ru-F4 coordination environments optimizes the electronic states, thereby enhancing the adsorption of reactants and intermediates. Moreover, the optimized electronic structure promotes the production and transformation of key intermediate species, lowers the energy barrier for CO2 conversion, and thus elevates the catalytic activity. This comprehensive study not only clarifies the relationship between the coordination structures of active sites and catalytic performance at atomic-level but also offers a novel paradigm for the design of efficient CO2 conversion catalysts.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":11.9,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602671","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
Ferrocene-modified polymer-SWCNT composite films for high-performance flexible thermoelectric generators 用于高性能柔性热电发电机的二茂铁改性聚合物-SWCNT 复合薄膜
IF 11.9 2区 材料科学
Journal of Materials Chemistry A Pub Date : 2024-07-13 DOI: 10.1039/d4ta02037e
Zelin Sun, Zhifeng Ma, Xuan Zhou, Yanzhao Wang, Jie Zhang, Wai-Yeung Raymond Wong
{"title":"Ferrocene-modified polymer-SWCNT composite films for high-performance flexible thermoelectric generators","authors":"Zelin Sun, Zhifeng Ma, Xuan Zhou, Yanzhao Wang, Jie Zhang, Wai-Yeung Raymond Wong","doi":"10.1039/d4ta02037e","DOIUrl":"https://doi.org/10.1039/d4ta02037e","url":null,"abstract":"In this study, we explore a new design strategy for enhancing the thermoelectric performance of composites between poly(Fc-CPT)-based metallopolymers (Fc-P1, Fc-P2, and Fc-P3) and single-walled carbon nanotubes (SWCNTs) by modifying CPT-based polymer backbones with pendant redox ferrocene groups and thiophene functional groups. After optimizing the conditions, all three one-dimensional (1D) conjugated metallopolymers exhibit excellent thermoelectric performance by interacting well with SWCNT. The study provides insights into polymer-SWCNT composites through morphological analysis and theoretical calculations. The flexible OTEG incorporating Fc-P3-SWCNT composites achieves an impressive output power of 1.18 μW at T is 72 K, underscoring the potential of these materials in advancing organic thermoelectric technologies. These findings are expected to stimulate further interest and research in high-performance OTE materials.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":11.9,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602677","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
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