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揭示重质油衍生碳纳米片的储钾性能（英文）

新型炭材料(中英文) 2024年

作者：赵青山刘钦莲李义文姬甜姚雨悦赵屹坤邓炜胡涵吴明铂中国石油大学(华东) 化学化工学院新能源学院重质油国家重点实验室青岛超锐纳米技术有限公司

作为石油炼制过程的副产品，重质油具有含碳量高、成本低、可调性强等特点，是构建钾离子电池电极材料极具竞争力的前驱体。然而，重质油组分组成与其电化学储钾性能之间的关系仍不明确。本研究选用具有不同组分组成的重质油（催化裂化... 详细信息

作为石油炼制过程的副产品，重质油具有含碳量高、成本低、可调性强等特点，是构建钾离子电池电极材料极具竞争力的前驱体。然而，重质油组分组成与其电化学储钾性能之间的关系仍不明确。本研究选用具有不同组分组成的重质油（催化裂化油浆、石油沥青和脱油沥青）作为碳源，通过熔盐法制备了三种碳纳米片作为钾离子电池负极材料。研究结果表明，重质油的四组分组成会导致不同的片层厚度、sp3-C/sp2-C比率和缺陷水平，进而对其储钾性能产生重要的影响。其中，催化裂化油浆芳香烃含量高、重组分含量适中，衍生的碳纳米片（CNS-FCCs）具有更小的片层厚度、更大的层间距（0.372 nm）和更多的褶皱缺陷，这些结构特征有助于促进电荷/离子的传输扩散，增加储钾位点并促进反应动力学。CNS-FCCs作为钾离子电池负极材料具有出色的K+存储能力(在0.1 A g-1下循环100次后比容量为248.7 mAh g-1)、长循环寿命(在1.0 A g-1下循环800次后比容量为190.8 mAh g-1)和优异的倍率性能，在报道的碳材料中位于前列。本研究揭示了重质油组分对碳材料结构及其电化学性能之间的影响机理，对设计和开发高效的重质油衍生钾离子电池碳基电极材料具有指导意义。

关键词：重质油碳纳米片熔盐法四组分组成钾离子电池

Self-supported transition metal oxide electrodes for electrochemical energy storage

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Tungsten 2020年第4期2卷 337-361页

作者： Xiao‑Ling Teng Xi‑Tong Sun Lu Guan Han Hu Ming‑Bo Wu State Key Lab of Heavy Oil Processing Institute of New EnergyCollege of Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China

Electrode materials are of decisive importance in determining the performance of electrochemical energy storage(EES)***,the electrode materials are physically mixed with polymer binders and conductive additives,which are then loaded on the current collectors to function in real *** a configuration inevitably reduces the content of active species and introduces quite some undesired interfaces that bring down the energy densities and power *** viable solution to address this issue is to construct self-supported electrodes where the active species,for example transition metal oxides(TMOs),are directly integrated with conductive substrates without polymer binders and conductive *** this review,the recent progress of self-supported TMO-based electrodes for EES devices including lithium-ion batteries(LIBs),sodium-ion batteries(SIBs),aluminum-ion batteries(AIBs),metal-air batteries,and supercapacitors(SCs),is discussed in great *** focused attention is firstly concentrated on their structural design and controllable ***,the mechanism understanding of the enhanced electrochemical performance is ***,the challenges and prospects of self-supported TMO-based electrodes are summarized to end this review.

关键词： Self-supported electrodes Transition metal oxides Metal-ion batteries Metal-air batteries Supercapacitors

Three-dimensional printing of high-mass loading electrodes for energy storage applications

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InfoMat 2021年第6期3卷 631-647页

作者： Hao Yang Zhaoxuan Feng Xiaoling Teng Lu Guan Han Hu Mingbo Wu State Key Lab of Heavy Oil Processing Institute of New EnergyCollege of Chemical EngineeringChina University of Petroleum(East China)QingdaoChina

Nanostructured materials afford a promising potential for many energy storage applications because of their extraordinary electrochemical ***,the remarkable electrochemical energy storage performance could only be harvested at a relatively low mass-loading via the traditional electrode fabrication process,and the scale of these materials into commercial-level mass-loading remains a daunting challenge because the ion diffusion kinetics deteriorates rapidly along with the increased thickness of the *** recently,three-dimensional(3D)printing,a promising additive manufacturing technology,has been considered as an emerging method to address the aforementioned issues where the 3D printed electrodes could possess elaborately regulated architectures and rationally organized *** a result,the outstanding electrochemical performance has been widely observed in energy storage devices made of 3D printed electrodes of high-mass *** this review,we systemically introduce the basic working principles of various 3D printing technologies and their practical applications to manufacture highmass loading electrodes for energy storage *** and perspectives in 3D printing technologies for the construction of electrodes at the current stage are also outlined,aiming to offer some useful opinions for further development for this prosperous field.

关键词： 3D printing electrode structures energy storage devices high-mass loading thick electrodes

Applications of nanogenerators for biomedical engineering and healthcare systems

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InfoMat 2022年第2期4卷 53-109页

作者： Wanli Wang Jinbo Pang Jie Su Fujiang Li Qiang Li Xiaoxiong Wang Jingang Wang Bergoi Ibarlucea Xiaoyan Liu Yufen Li Weijia Zhou Kai Wang Qingfang Han Lei Liu Ruohan Zang Mark HRümmeli Yang Li Hong Liu Han Hu Gianaurelio Cuniberti College of Electrical Engineering Qingdao UniversityQingdaoChina Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanJinanChina College of Electronic Information Qingdao UniversityQingdaoChina Department of Pediatric Surgery The Affiliated Hospital of Qingdao UniversityQingdaoChina College of Physics Qingdao UniversityQingdaoChina Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresdenGermany Center for Advancing Electronics Dresden Technische Universität DresdenDresdenGermany College of Biological Science and Technology University of JinanJinanChina School of Chemistry and Chemical Engineering University of JinanShandongJinanChina College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhouChina Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhouChina Centre of Polymer and Carbon Materials Polish Academy of SciencesZabrzePoland Institute for Complex Materials IFW DresdenDresdenGermany Institute of Environmental Technology VŠB-Technical University of OstravaOstravaCzech Republic School of Information Science and Engineering University of JinanJinanChina Shandong Provincial Key Laboratory of Network Based Intelligent Computing University of JinanJinanChina State Key Laboratory of Crystal Materials Center of Bio&Micro/Nano Functional MaterialsShandong UniversityJinanChina College of Chemical Engineering China University of Petroleum(East China)QingdaoChina Dresden Center for Computational Materials Science Technische Universität DresdenDresdenGermany The Dresden Center for Intelligent Materials(DCIM) Technische Universität DresdenDresdenGermany

The dream of human beings for long living has stimulated the rapid development of biomedical and healthcare ***,conventional biomedical and healthcare devices have shortcomings such as short service life,large equipment size,and high potential safety ***,the power supply for conventional implantable device remains predominantly *** emerging nanogenerators,which harvest micro/nanomechanical energy and thermal energy from human beings and convert into electrical energy,provide an ideal solution for self-powering of biomedical *** combination of nanogenerators and biomedicine has been accelerating the development of self-powered biomedical *** article first introduces the operating principle of nanogenerators and then reviews the progress of nanogenerators in biomedical applications,including power supply,smart sensing,and effective ***,the microbial disinfection and biodegradation performances of nanogenerators have been ***,the protection devices have been discussed such as face mask with air filtering function together with real-time monitoring of human health from the respiration and heat ***,the nanogenerator devices have been categorized by the types of mechanical energy from human beings,such as the body movement,tissue and organ activities,energy from chemical reactions,and gravitational potential ***,the challenges and future opportunities in the applications of nanogenerators are delivered in the conclusive remarks.

关键词： biomedical engineering healthcare implantable devices nanogenerators self-powered devices sensors

Clue to a thorough understanding of terahertz pulse generation by femtosecond laser filamentation

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Photonics Research 2018年第4期6卷 296-306页

作者： JIAYU ZHAO WEIWEI LIU SHICHANG LI DAN LU YIZHU ZHANG YAN PENG YIMING ZHU SONGLIN ZHUANG Shanghai Key Laboratory of Modern Optical Systems College of Optics and Electronic Information Engineering University of Shanghai for Science and Technology Shanghai 200093 China Institute of Modern Optics Key Laboratory of Optical Information Science and Technology Ministry of Education Nankai University Tianjin 300071 China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201210 China

In this work, it has been demonstrated that in order to fully understand the terahertz(THz) pulse generation process during femtosecond laser filamentation, the interaction between THz wave and air plasma has to be taken into account. This interaction is mainly associated with the spatial confinement of the THz pulse by the plasma column, which could be described by the one-dimensional negative dielectric(1DND) waveguide model. By combining the 1 DND model with the conventional four-wave mixing(4WM) and photocurrent(PC) models,the variation of THz spectral amplitude and width obtained in experiments could be better understood. Finally, a three-step procedure, with 1DND bridging 4WM and PC processes, has been established for the first time to describe the underlying mechanism of THz radiation from plasma sources.

关键词：太赫兹脉冲技术发展现状通讯技术

Terahertz time-domain spectroscopy and micro-cavity components for probing samples: a review

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Frontiers of Information Technology & Electronic Engineering 2019年第5期20卷 591-607页

作者： Lin CHEN Deng-gao LIAO Xu-guang GUO Jia-yu ZHAO Yi-ming ZHU Song-lin ZHUANG Shanghai Key Lab of Modern Optical System University of Shanghai for Science and Technology Shanghai 200093 China Shanghai Cooperation Innovation Centre of Terahertz Spectroscopy and Imaging Technology Shanghai 200093 China Cooperative Innovation Center of Terahertz Science University of Electronic Science and Technology Chengdu 611731 China

We give a brief review of the developments in terahertz time-domain spectroscopy(THz-TDS) systems and microcavity components for probing samples in the University of Shanghai for Science and Technology. The broadband terahertz(THz) radiation sources based on GaAs m-i-n diodes have been investigated by applying high electric fields. Then, the free space THz-TDS and fiber-coupled THz-TDS systems produced in our lab and their applications in drug/cancer detection are introduced in detail. To further improve the signal-to-noise ratio(SNR) and enhance sensitivity, we introduce three general micro-cavity approaches to achieve tiny-volume sample detection, summarizing our previous results about their characteristics, performance, and potential applications.

关键词： Terahertz (THz) time-domain spectroscopy Micro-cavity Metal holes array Waveguide cavities Spoof localized surface plasmons (LSPs)

Cyclic adenosine monophosphate involvement in low-dose cyclophosphamide-reversed immune evasion in a mouse lymphoma model

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Cellular & Molecular Immunology 2012年第6期9卷 482-488页

作者： Ai-Xia Dou Li-Li Feng Xiao-Qian Liu Xin Wang Department of Hematology Provincial Hospital Affiliated to Shandong UniversityJinanChina Department of Hematology Second Hospital of Shandong UniversityJinanChina Department of Diagnostics Shandong University School of MedicineJinanChina

Lymphoma cells mobilize many mechanisms to evade the immune system. There is substantial evidence that CD4＋CD25＋ regulatory T cells （Tregs） play a key role in the control of immune evasion. Tregs can transfer cyclic adenosine monophosphate （cAMP） to effector T cells, suggesting an association between Tregs＇ immune-evasion role and the intracellular cAMP pathway. In this study, we used A20 B-cell lymphoma mice as aggressive tumor models to investigate the mechanism of the depletion of Tregs by low-dose cyclophosphamide （CY, 20 mg/kg）. The tumor-bearing mice had longer survival times and slower tumor growth rates following treatment with CY, but its effects were temporary. Along with the depletion of Tregs by low-dose CY treatment, the expression of interleukin-2 （IL-2） in T effector cells increased, and intracellular cAMP concentrations in immune cells decreased. Our study demonstrates the ability of low-dose CY to reverse Tregs-mediated immune evasion in a mouse model. The changes in intracellular cAMP concentrations correlated with the upregulation of effector T cells and the downregulation of Tregs, indicating the close association of cAMP analogs and low-dose CY in the immune therapy of B-cell lymphoma.

关键词： cAMP cyclophosphamide lymphoma Tregs