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学者姓名：刘丹敏
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摘要 ：
本发明提供了一种全波段可调偏振的非线性光学特性原位检测装置，飞秒激光器产生飞秒激光脉冲，经过光学参量放大器后经过第一可变光阑，中性密度滤光片，可变衰减片，被第一分束镜分为参考光路和信号光路。参考光路中，光束经过第二分束镜，反射光经过第一聚焦透镜进入第一光谱仪，透射光经过第二聚焦透镜进入第一功率计；信号光路中，光束经过第三聚焦透镜入射至样品上，经第二可变光阑和第三分束镜，反射光经过第四聚焦透镜进入第二光谱仪，透射光经过第五聚焦透镜进入第二功率计。实现原位的可调偏振的飞秒Z扫描测试、二次谐波测试、荧光发射光谱和荧光激发光谱的一体化测试，极大程度上降低样品测量位置变化带来的误差，同时节约时间和成本。
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| GB/T 7714 | 刘丹敏 , 刘峻峰 , 刘世炳 et al. 一种全波段可调偏振的非线性光学特性原位检测装置 : CN202310650506.6[P]. | 2023-06-03 . |
| MLA | 刘丹敏 et al. "一种全波段可调偏振的非线性光学特性原位检测装置" : CN202310650506.6. | 2023-06-03 . |
| APA | 刘丹敏 , 刘峻峰 , 刘世炳 , 宋海英 , 李亚超 , 谢奇源 et al. 一种全波段可调偏振的非线性光学特性原位检测装置 : CN202310650506.6. | 2023-06-03 . |
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摘要 ：
A paired electrochemical refinery toward the cathodic nitrate reduction reaction (NO3RR) and anodic glycerol oxidation reaction (GOR) driven by renewable electricity could generate high value-added ammonia and formic acid simultaneously. However, both cathode and anode electrocatalysts often suffer from low efficiency and unclear reconstruction. Herein, we prepare a non-noble NiCu-OH nanocomposite precatalyst composed of crystalline Cu-2(OH)(3)(NO3) and amorphous Ni(OH)(2), which can be reconstructed into high-activity and stable cathodic NO3RR and anodic GOR electrocatalysts under operating conditions. Various in situ and ex situ experiments demonstrate that NiCu-OH could convert into active Cu nanoparticles coupled with amorphous Ni(OH)(2) under cathodic NO3RR conditions. Meanwhile, under anodic GOR conditions, NiCu-OH-derived bimetal oxide (NiCuO) changes into active NiOOH species composited with Cu vacancy-rich CuO. Furthermore, an actual paired electrochemical refinery with the reconstructed NiCu-based catalysts toward the NO3RR and GOR shows a low potential of 1.37 V at a current density of 100 mA cm(-2) to continuously produce ammonium and formate. This study provides a new paradigm for the design of an electrochemical refinery with reconstructed non-noble electrocatalysts toward chemical upgradation.
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| GB/T 7714 | Li, Shanlin , Ma, Peijie , Gao, Chunlang et al. Reconstruction-induced NiCu-based catalysts towards paired electrochemical refining [J]. | ENERGY & ENVIRONMENTAL SCIENCE , 2022 , 15 (7) : 3004-3014 . |
| MLA | Li, Shanlin et al. "Reconstruction-induced NiCu-based catalysts towards paired electrochemical refining" . | ENERGY & ENVIRONMENTAL SCIENCE 15 . 7 (2022) : 3004-3014 . |
| APA | Li, Shanlin , Ma, Peijie , Gao, Chunlang , Liu, Lijia , Wang, Xunlu , Shakouri, Mohsen et al. Reconstruction-induced NiCu-based catalysts towards paired electrochemical refining . | ENERGY & ENVIRONMENTAL SCIENCE , 2022 , 15 (7) , 3004-3014 . |
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摘要 ：
Studying ultrafast dynamics provides us with a way to modify materials from the timescale of particle interaction, and the related research on antiferromagnetic semiconductors is still inadequate. Based on the electron density reconstruction, we achieve the visualization of magnetic interactions of bulk antiferromagnetic MnPS3 in the ground state, reveal the role of two atomic site occupations of S atoms in different magnetic phase transitions, and provide the theoretical and experimental support for modifying magnetic properties by selectively replacing the S atom. The ultrafast carrier dynamics can provide information from the excited state to the ground state. Based on time-resolved transmittance measurements, ultrafast carrier dynamics of MnPS3 are reported. The phonon-assisted gap transition driven by the electronic structure is characterized. The coupling relationship among electrons, spin, and phonons is established. Furthermore, the spin orientations within different phases are confirmed.
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| GB/T 7714 | Liu, Junfeng , Liu, Danmin , Li, Yachao et al. Electron Density Changes and Ultrafast Carrier Dynamics of the Antiferromagnetic Semiconductor MnPS3 through Magnetic Phase Transition [J]. | INORGANIC CHEMISTRY , 2022 , 61 (46) : 18380-18389 . |
| MLA | Liu, Junfeng et al. "Electron Density Changes and Ultrafast Carrier Dynamics of the Antiferromagnetic Semiconductor MnPS3 through Magnetic Phase Transition" . | INORGANIC CHEMISTRY 61 . 46 (2022) : 18380-18389 . |
| APA | Liu, Junfeng , Liu, Danmin , Li, Yachao , Song, Haiying , Zheng, Xinqi , Fan, Changzeng et al. Electron Density Changes and Ultrafast Carrier Dynamics of the Antiferromagnetic Semiconductor MnPS3 through Magnetic Phase Transition . | INORGANIC CHEMISTRY , 2022 , 61 (46) , 18380-18389 . |
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摘要 ：
一种基于范德华金属电极的自驱动超快光电探测器构筑方法，涉及微电子异质结光电探测器件应用领域。采用机械剥离的方法剥离二维金属材料(Fe3GeTe2、Graphene)，叠层过渡族金属硫化物WSe2，形成Fe3GeTe2‑WSe2‑Graphene异质结。在此结构中不同范德华金属电极与沟道材料WSe2的接触长度存在差异，形成非对称的几何接触形状，获得不同的肖特基势垒高度，从而形成有效的结区内部电场，产生自驱动电流。此光电探测器具有结构简单、暗电流几乎为零、响应度高、响应速率快、灵敏度高等特点。Fe3GeTe2‑WSe2‑Graphene异质结可以拓展于二维材料相关的微电子器件及光电探测器领域的应用。
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| GB/T 7714 | 刘丹敏 , 徐国梁 . 一种基于范德华金属电极的自驱动超快光电探测器构筑方法 : CN202210023809.0[P]. | 2022-01-10 . |
| MLA | 刘丹敏 et al. "一种基于范德华金属电极的自驱动超快光电探测器构筑方法" : CN202210023809.0. | 2022-01-10 . |
| APA | 刘丹敏 , 徐国梁 . 一种基于范德华金属电极的自驱动超快光电探测器构筑方法 : CN202210023809.0. | 2022-01-10 . |
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摘要 ：
一种通过表面掺杂来提高二维材料KP15电学性能的方法属于光电材料与器件领域。本发明通过在材料表面掺杂有机分子，调控了KP15的导电类型以及载流子浓度，使其电学性能大大提高。本发明方法简单、效果显著，不会对材料本身造成伤害，并且具有可逆性，可推广应用于其它二维材料的掺杂中。此外，本发明增强了KP15材料的导电性，为其偏振光电探测器的应用打下了基础。
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| GB/T 7714 | 刘丹敏 , 叶帅帅 , 施展 . 一种通过表面掺杂来提高二维材料KP15电学性能的方法 : CN202210521543.2[P]. | 2022-05-13 . |
| MLA | 刘丹敏 et al. "一种通过表面掺杂来提高二维材料KP15电学性能的方法" : CN202210521543.2. | 2022-05-13 . |
| APA | 刘丹敏 , 叶帅帅 , 施展 . 一种通过表面掺杂来提高二维材料KP15电学性能的方法 : CN202210521543.2. | 2022-05-13 . |
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摘要 ：
本发明公开了一种宽温域内具有正值和负值大拓扑霍尔效应的磁性材料，化学式为LaxNd1‑xMn2Ge2(0＜x＜1)。该系列磁性材料在包括室温在内的宽温域中具有大拓扑霍尔效应，且其值随温度的降低由正值变为负值，这使其有可能成为一种具有小尺寸和高密度斯格明子的磁性材料，同时其斯格明子磁畴结构的自旋方向可能随温度的变化而发生翻转，这预示着随温度的变化可形成不同的磁存储单元；此外，随着La/Nd比值的减小，其居里温度、自旋重取向温度等磁转变温度会随之升高，导致不同磁存储单元的工作温区随之变化，可以据此进行工作温区的调控。因此，该系列磁性材料是理想的磁存储和信息转换等自旋电子学器件的候选材料。
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| GB/T 7714 | 刘丹敏 , 贺莉东 , 徐国梁 et al. 一种宽温域内具有正值和负值大拓扑霍尔效应的磁性材料 : CN202210505550.3[P]. | 2022-05-10 . |
| MLA | 刘丹敏 et al. "一种宽温域内具有正值和负值大拓扑霍尔效应的磁性材料" : CN202210505550.3. | 2022-05-10 . |
| APA | 刘丹敏 , 贺莉东 , 徐国梁 , 王少博 . 一种宽温域内具有正值和负值大拓扑霍尔效应的磁性材料 : CN202210505550.3. | 2022-05-10 . |
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摘要 ：
透射电镜作为当代最常用的材料表征手段之一,有着高的分辨率,可以较清晰地在原子尺度表征材料的微观结构与化学成分,在许多学科中发挥着关键作用.新型电池作为高效、清洁的储存装置,给现代生活带来了许多便利,拥有极大的科研与商用价值.而作为电池重要部件的正极材料,是否能高效、安全地工作,时刻影响着新型电池的商业化前景.本文综述了透射电子显微学在新型电池正极材料失效机制研究中的贡献,总结了正极材料失效的普遍原因.利用透射电子显微学表征电池正极,有助于优化传统正极材料,对设计更加先进、稳定的新型正极材料提供理论依据.
关键词 ：
失效机制 失效机制 透射电镜 透射电镜 正极材料 正极材料
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| GB/T 7714 | 付军洁 , 刘丹敏 . 新型电池正极材料失效机制的透射电子显微学研究 [J]. | 电子显微学报 , 2021 , 40 (2) : 188-196 . |
| MLA | 付军洁 et al. "新型电池正极材料失效机制的透射电子显微学研究" . | 电子显微学报 40 . 2 (2021) : 188-196 . |
| APA | 付军洁 , 刘丹敏 . 新型电池正极材料失效机制的透射电子显微学研究 . | 电子显微学报 , 2021 , 40 (2) , 188-196 . |
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摘要 ：
新型电池正极材料失效机制的透射电子显微学研究
关键词 ：
失效机制 失效机制 正极材料 正极材料 透射电镜 透射电镜
引用：
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| GB/T 7714 | 付军洁 , 刘丹敏 , 电子显微学报 . 新型电池正极材料失效机制的透射电子显微学研究 [J]. | 付军洁 , 2021 , 40 (2) : 188-196 . |
| MLA | 付军洁 et al. "新型电池正极材料失效机制的透射电子显微学研究" . | 付军洁 40 . 2 (2021) : 188-196 . |
| APA | 付军洁 , 刘丹敏 , 电子显微学报 . 新型电池正极材料失效机制的透射电子显微学研究 . | 付军洁 , 2021 , 40 (2) , 188-196 . |
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摘要 ：
One-dimensional materials have been intensively studied because of their diverse properties, which are revealed when exfoliated from their bulk precursor. Liquid exfoliation is not only possibly the most suitable method for large-scale applications but also affords an opportunity to develop new deposition techniques. Fibrous phosphorus is a relatively new, one-dimensional material with high carrier mobility and a fast response velocity for future application in nanodevices. Because controllable liquid exfoliation processing of fibrous phosphorus (FP) remains challenging, we considered two factors: the exfoliated result and the removable solvents. We proposed a method for determining suitable solvents for efficient exfoliation and controllable size of fibrous phosphorus using Hansen solubility parameters. By controlling the water/acetone mixture ratios, the exfoliation effect could be controlled. Our work showed that 40% of the FP nanofibers were less than 10 nm in thickness and 70% of them were less than 20 nm. Furthermore, fibrous phosphorus produced a red fluorescence in bioimaging.
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| GB/T 7714 | Zhang Guoqing , Liu Danmin , Tian Nan et al. Controllable Liquid Exfoliation of Fibrous Phosphorus and Its Live-Cell Imaging. [J]. | Inorganic chemistry , 2021 , 60 (7) : 4883-4890 . |
| MLA | Zhang Guoqing et al. "Controllable Liquid Exfoliation of Fibrous Phosphorus and Its Live-Cell Imaging." . | Inorganic chemistry 60 . 7 (2021) : 4883-4890 . |
| APA | Zhang Guoqing , Liu Danmin , Tian Nan , Wang Xiuhong , Yan Wujuan , Huang Zikun et al. Controllable Liquid Exfoliation of Fibrous Phosphorus and Its Live-Cell Imaging. . | Inorganic chemistry , 2021 , 60 (7) , 4883-4890 . |
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摘要 ：
La0.6Ce0.3Pr0.1B6-ZrB2, a directionally solidified eutectic (DSE), is a material with a high-performance thermionic emission with great application prospects. The influence of the growth rates of this DSE on the microstructure, growth direction, two phases orientation relationship, mechanical properties, and thermionic emission properties was investigated. The experimental results show that the microstructure and growth direction of the two phases varied with the growth rate of the eutectic: the faster the growth rate, the lower the uniformity of the ZrB2 phase became, and the growth directions of the La0.6Ce0.3Pr0.1B6 matrix and the ZrB2 phase were also altered accordingly. In the La0.6Ce0.3Pr0.1B6-ZrB2 DSE with a growth rate of 100 mm/h, the two phases have a unique growth direction and a crystallographic orientation relationship. The fracture toughness of the La0.6Ce0.3Pr0.1B6-ZrB2 DSE is at least 50% higher than that of the single crystal La0.6Ce0.3Pr0.1B6, and the fracture toughness of the DSEs formed at different growth rates also differed.
关键词 ：
30 30 microstructure microstructure 6 6 1DSE 1DSE borides borides La0 La0 mechanical properties mechanical properties
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| GB/T 7714 | Shi, Feng , Liu, Danmin , Wang, Yan et al. Structure and properties of La0.6Ce0.3Pr0.1B6-ZrB2, a directionally solidified eutectic with different growth rates [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2021 , 105 (1) : 111-119 . |
| MLA | Shi, Feng et al. "Structure and properties of La0.6Ce0.3Pr0.1B6-ZrB2, a directionally solidified eutectic with different growth rates" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 105 . 1 (2021) : 111-119 . |
| APA | Shi, Feng , Liu, Danmin , Wang, Yan , Liu, Linlin , Xiao, Weiqiang , Liu, Cuixiu et al. Structure and properties of La0.6Ce0.3Pr0.1B6-ZrB2, a directionally solidified eutectic with different growth rates . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2021 , 105 (1) , 111-119 . |
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