英文文献汇报(课堂PPT)
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英文文献汇报(课堂PPT)
favourable electrical conductivity, good surface functionality, mechanical/chemical stability, and biocompatibility
8
Hollow nanostructures的合成困 境
• The template-free or self-templating bottom-up approaches：hardly extended to HGN synthesis；
14
Morphology and structure of HGNs
15
Electrochemical performance of HGN-S
16
Morphology of cycled HGN-S electrodes
17
Conclusions
• HGNs通过介尺度催化自限性组装法合成，具有非常小的粒径、单层或 多层的石墨烯片层、3D分层的花瓣状相形态；
• A template-involving top-down strategy：no catalytic capability to regularly manage the arrangement of carbon atoms；
• Thus, controllable synthesis of HGNs with an engineered hollow cavity, predetermined layer number, small size, and highly crystalline few-layer graphene shells is 9
• 在1.0C的电流密度下，初始放电容量1098mAh/g，1000次循环之后放 电容量419mAh/g；衰减速率平均每圈0.06%，这显著的低于其他无硝 酸锂电解液的基于石墨烯的Li-S电池；
8
Hollow nanostructures的合成困 境
• The template-free or self-templating bottom-up approaches：hardly extended to HGN synthesis；
14
Morphology and structure of HGNs
15
Electrochemical performance of HGN-S
16
Morphology of cycled HGN-S electrodes
17
Conclusions
• HGNs通过介尺度催化自限性组装法合成，具有非常小的粒径、单层或 多层的石墨烯片层、3D分层的花瓣状相形态；
• A template-involving top-down strategy：no catalytic capability to regularly manage the arrangement of carbon atoms；
• Thus, controllable synthesis of HGNs with an engineered hollow cavity, predetermined layer number, small size, and highly crystalline few-layer graphene shells is 9
• 在1.0C的电流密度下，初始放电容量1098mAh/g，1000次循环之后放 电容量419mAh/g；衰减速率平均每圈0.06%，这显著的低于其他无硝 酸锂电解液的基于石墨烯的Li-S电池；
英文文献报告PPT模板
Detailed introduction to the experimental
02
design and implementation process of theme
three
03
Evaluate the experimental results and
conclusions of Topic Three
Research field
Covering multiple disciplines such as biology, chemistry, physics, etc., mainly focusing on the application and progress of XXX theme in various fields.
STEP 03
This can include the position, unit, or school name of the reporter.
If necessary, you can add your contact information or email address below your name.
英文文献报告ppt模 板
• cover • catalogue • Literature review • research method • Research findings and discussions • conclusion • References • Thanks
目录
Part
01
Theme Four
01
Introduce the research field and current situation of Topic Four
医学英文文献汇报PPT课件
Pulmonary hypertension secondary to pulmonary veno-occlusive disease complicated by right heart failure, hypotension and acute kidney injury
肺静脉闭塞性疾病继发肺动脉高压症，并伴发右心衰、 低血压和急性肾损伤
肺静脉闭塞性疾病(PVOD)是一种罕见的肺动脉高血压(PAH) 病因，其肺小静脉和微静脉纤维化，逐渐导致肺动脉高压、 肺间质、胸膜水肿和右心衰。
PVOD常常与肺结缔组织疾病、艾滋病、骨髓移植、化学风 险有关，但特发性占大多数。确诊需要肺组织学活检，但获 得这样一个组织标本的禁忌症就是患者有呼吸系统和血流动 力学的不稳定。虽然还有其他的诊断方法，比肺组织活检的 创伤要小，但是没有组织学的诊断很难区分PVOD特发性多 环芳烃特发性肺动脉高压和间质性肺病区分。
医学英文文献汇报
11
Case description
图1所示。肺活检病理切片。被增生的纤维结缔组织填充的胸膜下小叶间静脉 (箭头所示)。
医学英文文献汇报
12
Case description
该病人被转移到附近的医院进行会诊和治疗。留置的漂浮导管监测结果 示系统PA压力为104/46mmHg（平均67）；心输出量增加至4.98L/min ，肺毛细血管楔压为10mmHg。该患者一开始就是以特发性肺动脉高压 进行治疗的，包括持续吸入NO、西地那非、前列环素等血管舒张剂等 药物治疗。经过治疗，患者PA有轻微改善，但血氧过低和呼吸困难症状 仍存
医学英文文献汇报
10
Case description
在这一点上，鉴于ILD的主要表现，以及病人的严重低氧血 症,CTA检查结果和肺功能测试，外院给她进行了支气管镜 检查和胸腔镜肺活检。而这一系列检查我们都不推荐。在麻 醉诱导后立即出现的无脉性电活动又使病情更加复杂化。这 个病人经历了不到5分钟心肺复苏后才恢复自主循环，整个 过程也才完成。随后，该患者出现低血压，并需要用多巴胺 +米力农等血管收缩药物来维持。初步肺活检结果与与特发 性肺动脉高压是一致的；活检的切片被送到外面的专业实验 室（图1示）。
肺静脉闭塞性疾病继发肺动脉高压症，并伴发右心衰、 低血压和急性肾损伤
肺静脉闭塞性疾病(PVOD)是一种罕见的肺动脉高血压(PAH) 病因，其肺小静脉和微静脉纤维化，逐渐导致肺动脉高压、 肺间质、胸膜水肿和右心衰。
PVOD常常与肺结缔组织疾病、艾滋病、骨髓移植、化学风 险有关，但特发性占大多数。确诊需要肺组织学活检，但获 得这样一个组织标本的禁忌症就是患者有呼吸系统和血流动 力学的不稳定。虽然还有其他的诊断方法，比肺组织活检的 创伤要小，但是没有组织学的诊断很难区分PVOD特发性多 环芳烃特发性肺动脉高压和间质性肺病区分。
医学英文文献汇报
11
Case description
图1所示。肺活检病理切片。被增生的纤维结缔组织填充的胸膜下小叶间静脉 (箭头所示)。
医学英文文献汇报
12
Case description
该病人被转移到附近的医院进行会诊和治疗。留置的漂浮导管监测结果 示系统PA压力为104/46mmHg（平均67）；心输出量增加至4.98L/min ，肺毛细血管楔压为10mmHg。该患者一开始就是以特发性肺动脉高压 进行治疗的，包括持续吸入NO、西地那非、前列环素等血管舒张剂等 药物治疗。经过治疗，患者PA有轻微改善，但血氧过低和呼吸困难症状 仍存
医学英文文献汇报
10
Case description
在这一点上，鉴于ILD的主要表现，以及病人的严重低氧血 症,CTA检查结果和肺功能测试，外院给她进行了支气管镜 检查和胸腔镜肺活检。而这一系列检查我们都不推荐。在麻 醉诱导后立即出现的无脉性电活动又使病情更加复杂化。这 个病人经历了不到5分钟心肺复苏后才恢复自主循环，整个 过程也才完成。随后，该患者出现低血压，并需要用多巴胺 +米力农等血管收缩药物来维持。初步肺活检结果与与特发 性肺动脉高压是一致的；活检的切片被送到外面的专业实验 室（图1示）。
英文文献汇报技巧(课堂PPT)
1
THE MAIN CONTENTS
01
研究背景及目的
02
研究对象及方法
03
研究结果
04
讨论及总结
2020/4/4
2
1 第
部分
2020/4/4
研究背景及目的
3
01 研究背景及目的
2020/4/4
Malnutrition increases the risk of treatment toxicity and impairs outcomes of patients with cancer.
2020/4/4
12
03 研究结果
2020/4/4
Malnutrition was identified in 40%, 40%, and 31% of patients in initial evolution, relapse, or remission, respectively, and 27% of patients with local disease stage.
14
03 研究结果
2020/4/4
According to questionnaires, 57% of patients and 61% of relatives reported a lower food intake, mainly because of GI symptoms .
15
03 研究结果
2020/4/4
Nutrition interventions were recalled and were more frequent in malnourished patients
16
4 第
部分
外文文献汇报PPT课件
介绍： 人为活动和气候变化的双重影响下,一个常见的场景在干旱和半 干旱区,特别是在下游,是严重的生态退化,如植被死亡,加剧地下 水盐渍化、土壤盐渍化、沙漠化等。
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2、Introduction and Background
Background: 1、General setting
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第12页/共44页
Fig.2 Hydrogeological cross section in the Middle Tarim River, see Fig. 1 for the location
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第13页/共44页
2、Introduction and Background
Background: 3、Climate
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第14页/共44页
Table 1 Runoff changes at each station on the Tarim River (108 m3).
Literatures Source
2023最新整理收集 do something
1
第1页/共44页
Article structure
1、Results and Discussion 2、Conclusions 3、references
Phase 4
1、Sampling 2、Analyses
Phase 3
1、Introduction 2、Background
Phase 2
1、Title and author 2、Summary
Phase 1
第2页/共44页
Contents
1
Summary
2 Introduction and Background
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第10页/共44页
2、Introduction and Background
Background: 1、General setting
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第12页/共44页
Fig.2 Hydrogeological cross section in the Middle Tarim River, see Fig. 1 for the location
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第13页/共44页
2、Introduction and Background
Background: 3、Climate
14
第14页/共44页
Table 1 Runoff changes at each station on the Tarim River (108 m3).
Literatures Source
2023最新整理收集 do something
1
第1页/共44页
Article structure
1、Results and Discussion 2、Conclusions 3、references
Phase 4
1、Sampling 2、Analyses
Phase 3
1、Introduction 2、Background
Phase 2
1、Title and author 2、Summary
Phase 1
第2页/共44页
Contents
1
Summary
2 Introduction and Background
英文文献汇报PPT课件
DNA vaccines have been shown to induce strong humoral and cellular responses to malarial antigens in immunized. However, clinical trials of these candidate vaccines when used alone or in repeated homologous boosting regimens have been disappointing, with short lived low levels of induced specific T-cells responses. Sequential immunization with different plasmids/vectors known as heterologous prime-boosting appears to be a better approach and has been shown to induce enhanced and persistent levels of antibody and cell mediated immune responses against malaria. In heterologous prime-boosting strategy the priming was done with DNA followed by the booster immunization with a recombinant protein, a recombinant viral vaccine, or exposure to the live organism.
DNA vaccines have emerged as a promising approach for a variety of infectious agents including malaria parasites. DNA based vaccines are particularly important for developing multistage/multiantigen vaccines for complex parasites like malaria thereby inducing specific and protective immunity against different life cycle stages (pre- erythrocytic, erythrocytic and sexual stages) of malaria. The advantages of DNA vaccines are the ease of their production and their abilitany exogenous adjuvant, which is an
外文文献汇报PPT模板
④、Right-kidney recipient
A 32-year-old male received the right kidney. After he was informed of the transmission of breast cancer to the lung recipient in 2010, regular tumor screening investigations were performed, including achest X-ray and ultrasound of the abdomen. In addition, a CT scan of the chest was performed in January 2011. All of the findings were unremarkable.
Why would a person who shows no signs of cancer "infect" organ recipients after an organ transplant? Why do patients with different organs have the same kind of cancer? At present, the researchers have only some speculation about the cause, the definitive reason is unknown. One hypothesis is that donor breast cancer has metastasized or metastasized in every transplant organ, and previous studies have shown that circulating tumor cells were found in the first stage of breast cancer. Recipients of organ transplants require long-term use of immunosuppressants, which allow cancer cells in organs that do not normally develop. Another possible reason is that ischemia-reperfusion in10jury
英文文献报告PPT课件
Part 2 -1 Learn professional vocabularies
Professional vocabulary learning
1.多壁碳纳米管：Multiwalled carbon natotubes 2.聚对苯二甲酸乙二醇酯：Polyethylene terephthalate 3.五氧化二磷（P2O5）：phosphorus pentoxide 4.原位聚合：Situ synthesis 5.界面聚合：interfacial polymerization 6.多功能化：mutifuntionation 7.均匀分散：homogeneous dispersion 8.熔融纺丝： melt-spinning
❖ It is significant to improve the carbon micro-spheres performance and development of new fields of application to research the formation mechanism of the carbon spheres, as well as the structure and performance of the relationship.
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LOGO
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21
9
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Part 4 Topics and research directions
Hydrothermal carbonization
Cotton fabric or fiber
10
Carbon microspheres
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英文文献汇报PPT课件
Monoclonal antibodies against P. vivax MSP-1 42 Localization of P. vivax MSP-1 42 by indirect immunofluorescence
SDS–PAGE and immunoblotting
Purification of recombinant P. vivax MSP-1 42 expressed in E. coli Purification of plasmid for immunization
IF=2.218
.
1
.
2Hale Waihona Puke 1. Introduction
Merozoite surface protein-1 of malaria parasites, present on the surface of merozoite and playing a key role in the invasion process, is one of the leading vaccine targets for both P. falciparum and P. vivax malaria. MSP-1 occurs as a 200 kDa precursor and undergoes step-wise proteolytic processing resulting in a glycosyl-phosphatidylinositol-anchored 42 kDa protein fragment (MSP-1 42 ) on the surface of free merozoite. A large number of studies have shown the protective potential of MSP-1 fragments (42 and 19 kDa) of P. falci-parum and P. yoelii .
英文文献汇报PPT模板
understand the various usages of social media that improve the performance of the organization and choose those that are suitable for their business.
Thanks for your listening!
社交媒体的作用
2 Research Hypothesis
Technology, organization, and environment (TOE) framework T: Relative Advantage（相对优势） Compatibility（兼容性） Cost（成本） Interactivity（交互性） Structural Assurance（结构保证）
O: Top Management‘s Support（高层管理人员支持）
Entrepreneurial orientation（创业导向） E: Institutional Pressure（机构压力）
2 Research Hypothesis
Apart from the general TOE factors that are used in previous studies, interactivity（交互性） and entrepreneurial orientation（创业导向） were also considered as important factors in social media usage and thus included in the study.
• Social media benefits organizations is still not associated clear. Therefore, this study also investigates the benefits usage in organizations.
Thanks for your listening!
社交媒体的作用
2 Research Hypothesis
Technology, organization, and environment (TOE) framework T: Relative Advantage（相对优势） Compatibility（兼容性） Cost（成本） Interactivity（交互性） Structural Assurance（结构保证）
O: Top Management‘s Support（高层管理人员支持）
Entrepreneurial orientation（创业导向） E: Institutional Pressure（机构压力）
2 Research Hypothesis
Apart from the general TOE factors that are used in previous studies, interactivity（交互性） and entrepreneurial orientation（创业导向） were also considered as important factors in social media usage and thus included in the study.
• Social media benefits organizations is still not associated clear. Therefore, this study also investigates the benefits usage in organizations.
英文文献汇报 ppt课件
equation modeling, which allows the researcher to find the empirical evidence by testing
a measurement model and a structural model. The model comprised three variables, self-
purpose of this cross-sectional study was to test the multidimensional
assumptions of quality of life of patients with cancer, with focus on their self-
现有文献表明，自我控制能够克服癌症幸存者康复中的病理症状或问题，它还作为
身体残疾导致日常活动受限的患者的缓冲和心理资源，自我控制构成了信念和积极行为， 这种信念与生命可以用自己的意志和努力来领导有关，并且在各种压力情况下对保护和 促进身心健康起着重要作用。
加强自我控制的干预措施，将有助于改善生活质量。
2020/12/27
8
literature1--Reading comprehension（阅读感悟）
该研究通过确接受化疗的癌症患者的CIPN程度、控制感和生活质量之间的因果关系， 从而得出化疗的癌症患者的自我控制对CIPN引起的生活质量有很大的改善与提高。自我 控制被认为是控制自己的功能和行为，作为一个人的功能的核心，并在人生成功中起着 举足轻重的作用。
inadequate pain management and to generate solu-tions for closing the gap between the
英文文献讲解最终版PPT课件
作为新的候选植物化学物质，可以通过调节FATP2对NAFLD起治疗作用。
学习总结
经常不断地学习,你就什么都知道。你知道得越多,你就越有力量 Study Constantly, And You Will Know Everything. The More
You Know, The More Powerful You Will Be
However, apart from weight loss, there isn't effective treatment for NAFLD. Anti-NAFLD drugs (such as statin and fibrate, etc.) have a high risk and side effects of cardiovascular events and nervous system, and and are unsuited for long supplementation[13].Phytochemicals are attracting increasing attention because of their health benefits and relatively lower toxicity, and are thought to be suitable for long supplementation
Materials and methods
Animals and animal treatments
实验方法
实验结果
新芒果苷对NAFLD大鼠体重、摄食量和能量摄入量的影响; 新芒果苷对NAFLD大鼠器官和脂肪组织的相对重量的影响; 新芒果苷对NAFLD大鼠血清生化检测的影响; 新芒果苷对NAFLD大鼠肝脏和粪便脂质的影响; 新芒果苷对NAFLD大鼠肝脏中氧化指标的影响; 新芒果苷对NAFLD大鼠肝脏脂肪、全身脂肪以及棕色脂肪的
学习总结
经常不断地学习,你就什么都知道。你知道得越多,你就越有力量 Study Constantly, And You Will Know Everything. The More
You Know, The More Powerful You Will Be
However, apart from weight loss, there isn't effective treatment for NAFLD. Anti-NAFLD drugs (such as statin and fibrate, etc.) have a high risk and side effects of cardiovascular events and nervous system, and and are unsuited for long supplementation[13].Phytochemicals are attracting increasing attention because of their health benefits and relatively lower toxicity, and are thought to be suitable for long supplementation
Materials and methods
Animals and animal treatments
实验方法
实验结果
新芒果苷对NAFLD大鼠体重、摄食量和能量摄入量的影响; 新芒果苷对NAFLD大鼠器官和脂肪组织的相对重量的影响; 新芒果苷对NAFLD大鼠血清生化检测的影响; 新芒果苷对NAFLD大鼠肝脏和粪便脂质的影响; 新芒果苷对NAFLD大鼠肝脏中氧化指标的影响; 新芒果苷对NAFLD大鼠肝脏脂肪、全身脂肪以及棕色脂肪的
英文文献汇报ppt
英文文献汇报pptTitle: Advances in Artificial Intelligence in Healthcare: A Review of Recent LiteratureSlide 1: Introduction- Introduce the topic of artificial intelligence (AI) in healthcare- State the objective of the presentation: To discuss recent advancements in AI in healthcare based on a review of literature- Provide an outline of the presentationSlide 2: Overview of AI in Healthcare- Briefly explain the concept of AI and its potential applications in healthcare- Highlight the benefits of using AI in healthcare, such as improved accuracy, efficiency, and patient outcomes- Mention the various AI techniques used in healthcare, such as machine learning, natural language processing, and roboticsSlide 3: Literature Search Methodology- Explain the methodology used for identifying relevant literature for this review- Discuss the inclusion and exclusion criteria applied- Mention the databases and keywords used for the literature search Slide 4: AI in Diagnosis and Treatment- Present recent studies on the use of AI in diagnosing various medical conditions, such as cancer, cardiovascular diseases, and neurological disorders- Highlight the benefits of AI in diagnosis, including improved accuracy and speed- Discuss examples of AI applications in treatment planning and personalized medicineSlide 5: AI in Predictive Analytics and Early Detection- Discuss the use of AI in predicting patient outcomes and identifying early signs of diseases- Present studies showcasing the effectiveness of AI in predicting patient readmissions, mortality rates, and response to treatment- Explain how AI can support early detection and intervention in diseases such as diabetes and sepsisSlide 6: AI in Healthcare Administration- Discuss the role of AI in improving healthcare administration and operational efficiency- Present studies on the use of AI for patient scheduling, resource allocation, and workflow optimization- Explain how AI can help in reducing healthcare costs and improving patient access to careSlide 7: AI and Patient Privacy/Ethics- Address the ethical considerations and challenges associated with AI in healthcare- Discuss the importance of patient privacy and data security in AI applications- Mention the need for regulatory frameworks to ensure responsible and ethical use of AI in healthcareSlide 8: Conclusion- Summarize the key findings from the literature review- Emphasize the potential of AI in transforming healthcare delivery- Discuss future research directions and areas of further exploration Slide 9: References- List the references of the reviewed literature in a proper citation formatNote: Each slide should contain concise bullet points or brief statements with relevant images and graphs to support the content presented. The speaker should provide detailed explanations during the presentation, making sure to discuss the main findings and implications of each referenced study.。
研究生英文文献汇报ppt课件
• Chemicals and reagents.
Scutellarin,Scutellarein,4-MU,Tris-HCl, 7-hydroxycoumarin,UDPGA(缓冲盐)， 重组UGTs亚型（UGT1A1，UGT1A6， UGT1A9，UGT2B7），HPLC reagents.
；.
；.
13
Figure ；3. .
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Figure 4. ；.
15
Figure 5；. .
16
Figure 6. ；.
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• 野黄芩素对被测试UGTs的抑制作用表现出一定浓度的行为依赖性(A)。
• Dxion图(B)和Lineweaver-Burk图(C)反映了抑制动力学类型；野黄芩素对被测试 UGTs都有竞争性抑制作用。
• 由Lineweaver-Burk图及其斜率计算得野黄芩素对被测试UGTs的Ki值分别为0.02、 5.0、5.8、35.9(C).
；.
18
（2）Discussion
• 本实验研究了野黄芩苷和野黄芩素对4种UGT的抑制作用。结果表明，野黄芩素 比野黄芩苷对被测试UGTs表现出更强的抑制作用，提示野黄芩苷的去糖基化过 程可增强其抑制作用，与文献报道相符(Guo etal,2012)。
• UGTs have been demonstrated to be involved in the metabolic elimination of many important endogenous substances, such as bilirubin, bile acid and estradiol (Erichsen et al., 2010).
；.
9
• Data fitting for determination of inhibition type and parameters (Ki).
Scutellarin,Scutellarein,4-MU,Tris-HCl, 7-hydroxycoumarin,UDPGA(缓冲盐)， 重组UGTs亚型（UGT1A1，UGT1A6， UGT1A9，UGT2B7），HPLC reagents.
；.
；.
13
Figure ；3. .
14
Figure 4. ；.
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Figure 5；. .
16
Figure 6. ；.
17
• 野黄芩素对被测试UGTs的抑制作用表现出一定浓度的行为依赖性(A)。
• Dxion图(B)和Lineweaver-Burk图(C)反映了抑制动力学类型；野黄芩素对被测试 UGTs都有竞争性抑制作用。
• 由Lineweaver-Burk图及其斜率计算得野黄芩素对被测试UGTs的Ki值分别为0.02、 5.0、5.8、35.9(C).
；.
18
（2）Discussion
• 本实验研究了野黄芩苷和野黄芩素对4种UGT的抑制作用。结果表明，野黄芩素 比野黄芩苷对被测试UGTs表现出更强的抑制作用，提示野黄芩苷的去糖基化过 程可增强其抑制作用，与文献报道相符(Guo etal,2012)。
• UGTs have been demonstrated to be involved in the metabolic elimination of many important endogenous substances, such as bilirubin, bile acid and estradiol (Erichsen et al., 2010).
；.
9
• Data fitting for determination of inhibition type and parameters (Ki).
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4
Research background B
•研究背景： 中空纳米结构对提升电池性能有巨大优势，
但传统方法难以制作 •研究目的：
提升锂硫电池容量；提高电池稳定性 •解决方案：
中空石墨烯纳米球壳结构，嵌入硫合成复 合材料，作为电池正极
5
Abstract
•Hollow nanostructures：
and energy storage/conversion systems •Hollow nanocrystals：
mesoscale hollow structure, nanoscale quantum effects, and atomic-scale periodic arrangement •Hollow graphene nanoshells(HGNs)：
14
Morphology and structure of HGNs
15
Electrochemical performance of HGN-S
16
Morphology of cycled HGN-S electrodes
17
Conclusions
• HGNs通过介尺度催化自限性组装法合成，具有非常小的粒径、单层或 多层的石墨烯片层、3D分层的花瓣状相形态；
Li-S battery: poor cycling life and rate performance S: large volumetric expansion，poor conductivity Graphene: couldn’t integrate all the structural benefits. •The concept of HGNs might be a promising strategy, which yet calls for new synthetic methodology.
表面积大；活性部位充分暴露；物质输运的动力学性能优 良；表面通透性好
•A mesoscale approach to fabricate graphene shells:
催化剂作用下，在原位形成的纳米颗粒上实现纳米石墨烯 的自限性组装
•Use:
石墨烯纳米球壳作为基体与S复合，用作锂硫电池正极材 料
•Properties:
Results and Discussion
11
The in situ catalytic self-limited assembly of HGNs
12
Morphology and structure of α-Ni(OH)2DS
13
Morphology and structure of HGNs
• Carbon source: dodecyl sulfate(DS) • 3D mesostructure: zero-dimensional (0D)
HGNs construct two-dimensional (2D) nanosheets and then assemble into a three-dimensional (3D) mesostructure 10
Hollow nanostructures新的合成方案
• A mesoscale catalytic self-limited assembly of hollow graphene spheres was proposed.
• Hard templates and working catalysts: in situ formed nickel-based NPs
• A template-involving top-down strategy：no catalytic capability to regularly manage the arrangement of carbon atoms；
• Thus, controllable synthesis of HGNs with an engineered hollow cavity, predetermined layer number, small size, and highly crystalline few-layer graphene shells is 9
文献汇报
硬膜板上催化作用下的自限性组装： 用在锂硫电池中的中尺度石墨烯纳米壳
汇报人：XXX
1
目录
Source of the article
3
Research background A
•Li-S batteriy: high theoretical energy density of 2600 Wh/kg;
初始放电容量：1520mAh/g(0.1C)
电流密度从0.1C提升至2.0C，70%容量保持
6
Introduction
7
Hollow nanostructures的优势
•Applications： catalysis, adsorption, chemical sensors, drug/gene delivery,
•S: naturally abundant, economically effective, and environmentally
friendly; •Graphene and other nanostructured carbon materials:
excellent conductivity, high specific surface area, accommodate large volume expansion; •Issues:
favourable electrical conductivity, good surface functionality, mechanical/chemical stability, and biocompatibility
8
Hollow nanostructures的合成困 境
• The template-free or self-templating bottom-up approaches：hardly extended to HGN synthesis；
Research background B
•研究背景： 中空纳米结构对提升电池性能有巨大优势，
但传统方法难以制作 •研究目的：
提升锂硫电池容量；提高电池稳定性 •解决方案：
中空石墨烯纳米球壳结构，嵌入硫合成复 合材料，作为电池正极
5
Abstract
•Hollow nanostructures：
and energy storage/conversion systems •Hollow nanocrystals：
mesoscale hollow structure, nanoscale quantum effects, and atomic-scale periodic arrangement •Hollow graphene nanoshells(HGNs)：
14
Morphology and structure of HGNs
15
Electrochemical performance of HGN-S
16
Morphology of cycled HGN-S electrodes
17
Conclusions
• HGNs通过介尺度催化自限性组装法合成，具有非常小的粒径、单层或 多层的石墨烯片层、3D分层的花瓣状相形态；
Li-S battery: poor cycling life and rate performance S: large volumetric expansion，poor conductivity Graphene: couldn’t integrate all the structural benefits. •The concept of HGNs might be a promising strategy, which yet calls for new synthetic methodology.
表面积大；活性部位充分暴露；物质输运的动力学性能优 良；表面通透性好
•A mesoscale approach to fabricate graphene shells:
催化剂作用下，在原位形成的纳米颗粒上实现纳米石墨烯 的自限性组装
•Use:
石墨烯纳米球壳作为基体与S复合，用作锂硫电池正极材 料
•Properties:
Results and Discussion
11
The in situ catalytic self-limited assembly of HGNs
12
Morphology and structure of α-Ni(OH)2DS
13
Morphology and structure of HGNs
• Carbon source: dodecyl sulfate(DS) • 3D mesostructure: zero-dimensional (0D)
HGNs construct two-dimensional (2D) nanosheets and then assemble into a three-dimensional (3D) mesostructure 10
Hollow nanostructures新的合成方案
• A mesoscale catalytic self-limited assembly of hollow graphene spheres was proposed.
• Hard templates and working catalysts: in situ formed nickel-based NPs
• A template-involving top-down strategy：no catalytic capability to regularly manage the arrangement of carbon atoms；
• Thus, controllable synthesis of HGNs with an engineered hollow cavity, predetermined layer number, small size, and highly crystalline few-layer graphene shells is 9
文献汇报
硬膜板上催化作用下的自限性组装： 用在锂硫电池中的中尺度石墨烯纳米壳
汇报人：XXX
1
目录
Source of the article
3
Research background A
•Li-S batteriy: high theoretical energy density of 2600 Wh/kg;
初始放电容量：1520mAh/g(0.1C)
电流密度从0.1C提升至2.0C，70%容量保持
6
Introduction
7
Hollow nanostructures的优势
•Applications： catalysis, adsorption, chemical sensors, drug/gene delivery,
•S: naturally abundant, economically effective, and environmentally
friendly; •Graphene and other nanostructured carbon materials:
excellent conductivity, high specific surface area, accommodate large volume expansion; •Issues:
favourable electrical conductivity, good surface functionality, mechanical/chemical stability, and biocompatibility
8
Hollow nanostructures的合成困 境
• The template-free or self-templating bottom-up approaches：hardly extended to HGN synthesis；