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放射性石墨处理技术综述

广东化工 2024年第7期51卷 81-84页

作者：袁永太徐卫郑博文高东亮张禹中国辐射防护研究院山西太原030006

放射性石墨是核电活动中存在的一种特殊废物,在处理和处置上具有一定的挑战性,焚烧技术由于其优异的减容能力得到了研究者的青睐。本文重点从石墨燃烧原理、放射性核素行为、燃烧工艺参数、设备等方面对焚烧处理技术进行了分析,并比较... 详细信息

放射性石墨是核电活动中存在的一种特殊废物,在处理和处置上具有一定的挑战性,焚烧技术由于其优异的减容能力得到了研究者的青睐。本文重点从石墨燃烧原理、放射性核素行为、燃烧工艺参数、设备等方面对焚烧处理技术进行了分析,并比较了不同的放射性石墨处理技术,分析了各技术优缺点,对将来处理放射性石墨具有参考指导意义。

关键词：放射性石墨处理技术焚烧工艺设备

Reduced graphene oxide decorated with Bi2O2.33 nanodots for superior lithium storage

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Nano Research 2017年第11期10卷 3690-3697页

作者： Haichen Liang Xiyan Liu dongliang gao Jiangfeng Ni Yan Li College of Physics Optoelectronics and Energy Collaborative Innovation Center of Suzhou Nano Science and Technology and Center for Energy Conversion Materials amp Physics(CECMP) Soochow University Suzhou 215006 China Key Laboratory for the Physics and Chemistry of Nanodevices Beijing National Laboratory for Molecular Science(BNLMS) College of Chemistry and Molecular Engineering and State Key Laboratory of Rare Earth Materials Chemistry and Applications Peking University Beijing 100871 China

Bismuth oxides are important battery materials owing to their ability to electrochemically react and alloy with Li,which results in a high capacity level,which substantially exceeds that of graphite ***,this high Li-storage capability is often compromised by the poor electrochemical cyclability and rate capability of bismuth *** address these challenges,in this study,we design a hybrid architecture composed of reduced graphene oxide （rGO） nanosheets decorated with ultrafine Bi2O2.33 nanodots （denoted as Bi2O2.33/rGO）,based on the selective and controlled hydrolysis of a Bi precursor on graphene oxide and subsequent crystallization via solvothermal *** of its high conductivity,large accessible area,and inherent flexibility,the Bi2O2.33/rGO hybrid exhibits stable and robust Li storage （346 mA＆#183;h＆#183;g-1 over 600 cycles at 10 C）,significantly outperforming previously reported Bi-based *** superb performance indicates that decorating rGO nanosheets with ultrafine nanodots may introduce new possibilities for the development of stable and robust metal-oxide electrodes.

关键词： bismuth oxide nanodot reduced graphene oxide Li storage

One-pot facile fabrication of carbon-coated Bi2S3 nanomeshes with efficient Li-storage capability

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Nano Research 2014年第5期7卷 765-773页

作者： Yang Zhao dongliang gao Jiangfeng Ni Lijun gao Juan Yang Yan Li School of Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215006 China Key Laboratory for the Physics and Chemistry ofNanodevices Beijing National Laboratory for Molecular Science College of Chemistry and Molecular Engineering and State Key Laboratory of Rare Earth Materials Chemistry and Applications Peking University Beijing 100871 China

Layered bismuth sulfide (Bi2S3) has emerged as an important type of Li-storage material due to its high theoretical capacity and intriguing reaction mechanism. The engineering and fabrication of Bi2S3 materials with large capacity and stable cyclability via a facile approach is essential, but still remains a great challenge. Herein, we employ a one-pot hydrothermal route to fabricate carbon-coated Bi2S3 nanomeshes (Bi2S3/C) as an efficient Li-storage material. The nanomeshes serve as a highly conducting and porous scaffold facilitating electron and ion transport, while the carbon coating layer provides flexible space for efficient reduction of mechanical strain upon electrochemical cycling. Consequently, the fabricated Bi2S3/C exhibits a high and stable capacity delivery in the 0.01–2.5 V region, notably outperforming previously reported Bi2S3 materials. It is able to discharge 472 mA·h·g−1 at 120 mA·g−1 over 50 full cycles, and to retain 301 mA·h·g−1 in the 40th cycle at 600 mA·g−1, demonstrating the potential of Bi2S3 as electrode materials for rechargeable batteries.

关键词： Bi2S3 碳包覆存储能力制作存储材料简便锂可再充电电池

Routing emission with a multi-channel nonreciprocal waveguide

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Photonics Research 2019年第6期7卷 642-646页

作者： HAO HU LIANGLIANG LIU XIAO HU DONGJUE LIU dongliang gao School of Electrical and Electronic Engineering Nanyang Technological University 639798 Singapore Singapore Research Center of Applied Electromagnetics School of Electronic and Information Engineering Nanjing University of Information Science and TechnologyNanjing 210044 China School of Physical Science and Technology Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow UniversitySuzhou 215006 China

In this work, we present a multi-channel nonreciprocal waveguide, which is composed of a gyrotropic-bounded dielectric on the bottom and a plasmonic material on the top. The Lorentz reciprocity in the time-invariant system is broken when applying an external static magnetic field on the gyrotropic material. The nonreciprocal emission from the dipole source located in the center of the waveguide is observed in extended waveband channels. The proposed heterostructure serves as a photonic dichroism once the dielectric is replaced by a nonlinear *** associated second harmonic generated in the nonlinear process can be separated from the fundamental signal under proper magnetic field intensity. Our findings may provide significant guidance for designing nonreciprocal photonic devices with superiorities of a tunable waveband, multiple channels, and small footprint.

关键词： Routing emission waveguide

Preparation and electrocatalytic properties of triuranium octoxide supported on reduced graphene oxide

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Nano Research 2015年第2期8卷 546-553页

作者： dongliang gao Zhenyu Zhang Li Ding Juan Yang Yan Li Key Laboratory for the Physics and Chemistry of Nanodevices Beijing National Laboratory for Molecular Science College of Chemistry and Molecular Engineering State Key Laboratory of Rare Earth Materials Chemistry and Applications Peking University Beijing 100871 China Academy for Advanced Interdisciplinary Studies Peking University Beijing 100871 China

Triuranium 减少 octoxide 的 graphene 氧化物(U 3 O 8 个 /rGO) 混血儿被一个二拍子的圆舞答案阶段方法准备了。存在去是必要的以便获得纯阶段 U 3 O 8 。U 3 O 8 个 /rGO 混血儿为氧减小反应展出了优秀 electrocatalytic ... 详细信息

Triuranium 减少 octoxide 的 graphene 氧化物(U 3 O 8 个 /rGO) 混血儿被一个二拍子的圆舞答案阶段方法准备了。存在去是必要的以便获得纯阶段 U 3 O 8 。U 3 O 8 个 /rGO 混血儿为氧减小反应展出了优秀 electrocatalytic 活动。电子转移数字被计算在 0.7 V 是 3.9 (对 Ag/AgCl ) 从 Koutecky-Levich 阴谋的斜坡。U 3 O 8 个 /rGO 混血儿比商业 Pt/C 催化剂更稳定。而且，当甲醇是在场的时， U 3 O 8 个 /rGO 混血儿仍然保留了高活动。另外， U 3 O 8 个 /rGO 混血儿能也催化氢的减小过氧化物。

关键词：氧还原反应电催化性能八氧化三铀氧化石墨制备混合动力车 U3O8 杂种表现

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法诺共振导致的纳米颗粒古斯-汉欣位移反转

光学学报 2022年第21期42卷 3-7页

作者：孙宇辰高东梁高雷苏州大学物理科学与技术学院江苏苏州215006 苏州城市学院光学与电子信息学院江苏苏州215104

古斯汉欣位移是二维或更高维体系中反射光中心产生的侧向位移。通过Mie理论,利用纳米金属球颗粒Drude模型,研究了线偏振光入射条件下纳米球颗粒远场侧向位移的变化规律。通过推导古斯汉欣位移的解析表达式,并借助简化模型,揭示了古斯汉... 详细信息

古斯汉欣位移是二维或更高维体系中反射光中心产生的侧向位移。通过Mie理论,利用纳米金属球颗粒Drude模型,研究了线偏振光入射条件下纳米球颗粒远场侧向位移的变化规律。通过推导古斯汉欣位移的解析表达式,并借助简化模型,揭示了古斯汉欣位移方向反转的内在机制。研究发现古斯汉欣位移在法诺共振附近出现区别于其他波段的增强峰模式,此时电偶极子和电四极子发生耦合。该研究为基于古斯汉欣位移原理开发超灵敏探测器提供了参考。

关键词：物理光学古斯汉欣位移法诺共振纳米颗粒 Drude模型

Fabrication of the 19-filament Fe/Cu clad MgB_2 wire via in situ powder-in-tube method

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Chinese Science Bulletin 2007年第19期52卷 2621-2625页

作者： YU ZhengGuang MA YanWei WANG dongliang gao ZhaoShun ZHANG XianPing Applied Superconductivity Laboratory Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100080 China

Using commercial amorphous B powder (92% in purity) and Mg powder (99% in purity) as starting materials, 19-filament Fe/Cu clad MgB2 wires were fabricated by an in situ powder-in-tube method. Heat treatment was performed at 700℃ for 1 h under an argon gas atmosphere. The influence of Mg/B ratio on the microstructure and superconducting properties of the wires was investigated. It was found that the major phases of MgB2 wires were MgB2 accompanied with relatively small amounts of MgO and Fe2B impurities. With 5% excess Mg addition, the onset TC slightly decreased. However, the transport JC at 4.2 K and 4 T reached 1.07×104 A·cm-2, increasing by a factor of 1.4 compared to the stoichiometric sample. Moreover, the Mg1.05B2 sample showed an improved field dependence of JC, suggesting that less voids and smaller grain size of the Mg1.05B2 core lead to better grain connectivity and stronger flux pinning.

关键词： MgB2金属导线铜铁复合物制造工业灯丝

Direct growth of single-walled carbon nanotubes on substrates

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Chinese Science Bulletin 2012年第2期57卷 225-233页

作者： PENG Fei LIU Yu CUI RongLi gao dongliang YANG Feng LI Yan Beijing National Laboratory for Molecular Sciences National Laboratory of Rare Earth Material Chemistry and ApplicationKey Laboratory forthe Physics and Chemistry of NanodevicesCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

As one of the most promising candidate material for next generation electronic devices,the reliable and controllable synthesis of high quality single-walled carbon nanotubes(SWNTs) has long been an essential and important issue in the *** growth of SWNTs on flat substrates by chemical vapor deposition(CVD) process is the best way to obtain SWNTs because it is immediately ready for building *** orientation of the SWNTs has been well controlled by gas flow or substrate lattice during the CVD growth *** chirality and structure control of SWNTs is still a big ***,the conductivity selective growth has already partially *** catalysts have been explored to obtain SWNTs of higher *** with the further progress in the study of the SWNT growth,the precise control over the orientation,position and conductivity of SWNTs is expected to meet the requirements of carbon-based nanoelectronics.

关键词：单壁碳纳米管直接生长衬底化学气相沉积结构控制 SWNTs 纳米电子学电子设备

Optical manipulation from the microscale to the nanoscale: fundamentals, advances and prospects

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Light(Science & Applications) 2017年第1期6卷 593-607页

作者： dongliang gao Weiqiang Ding Manuel Nieto-Vesperinas Xumin Ding Mahdy Rahman Tianhang Zhang ChweeTeck Lim Cheng-Wei Qiu Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore College of Physics Optoelectronics and EnergySoochow UniversitySuzhou 215006China Department of Physics Harbin Institute of TechnologyHarbin 150001China Instituto de Ciencia de Materiales de Madrid Consejo Superior de Investigaciones CientíficasCampus de CantoblancoMadrid 28049Spain Department of Electrical and Computer Engineering North South UniversityDhaka 1229Bangladesh NUS Graduate School for Integrative Sciences and Engineering National University of SingaporeSingapore 117456Singapore Department of Mechanical Engineering National University of SingaporeSingapore 117576Singapore SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology Shenzhen UniversityShenzhen 518060China

Since the invention of optical tweezers,optical manipulation has advanced significantly in scientific areas such as atomic physics,optics and biological *** in the past decade,numerous optical beams and nanoscale devices have been proposed to mechanically act on nanoparticles in increasingly precise,stable and flexible *** the linear and angular momenta of light can be exploited to produce optical tractor beams,tweezers and optical torque from the microscale to the *** on optical forces helps to reveal the nature of light–matter interactions and to resolve the fundamental aspects,which require an appropriate description of momenta and the forces on objects in *** this review,starting from basic theories and computational approaches,we highlight the latest optical trapping configurations and their applications in bioscience,as well as recent advances down to the ***,we discuss the future prospects of nanomanipulation,which has considerable potential applications in a variety of scientific fields and everyday life.

关键词： biochemical manipulation microscale nanoscale optical force optical tweezer plasmonics