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博士后学术沙龙(第81期)
文:刘莉红 来源:材料学院 时间:2023-04-13 5167

  为搭建我校博士后之间的学术交流平台,促进学术水平提升,学校人力资源部博士后管理办公室组织开展博士后学术沙龙活动。本次沙龙由我校博士后薛志宇、骆沙、刘春晓、朱佳、陈颉颃、潘虹分享其研究成果,诚挚邀请感兴趣的师生参加。

  一、时 间:2023年4月17日(周一)14:30

  二、地 点:清水河校区研究院大楼3103

  三、主办单位:人力资源部博士后管理办公室

  四、承办单位:材料与能源学院     电子科技大学博士后联谊会

  五、活动安排:

  报告一:   

  (1)主 题:人体I型胶原蛋白诱导矿化机理的分子动力学研究

  (2)主讲人:薛志宇  材料与能源学院博士后 

  (3)交流内容:

  人体骨骼是一类经过生物矿化过程后形成的复杂且有序的天然硬材料。为了可以获得与自体骨中类似的生物性能,通常使用仿生法对胶原纤维进行矿化处理。但是制备环境复杂,使得矿化材料的性质难以精准调控。鉴于当前研究困境,本次报告将简要介绍开发的国内首款针对生物医用材料的高通量计算软件平台(BF-Web),阐述钙磷基/胶原基材料的计算技术、模型及方法,为材料的设计和筛选奠定理论基础。

  (4) 主讲人简介:

  2022年获四川大学理学博士学位,主要从事生物高分子和硬骨材料多尺度建模软件开发和复杂服役环境生物材料矿化机制的理论研究。已在国外重要学术期刊发表SCI检索研究论文17篇,国家授权发明专利1项,软件著作权4项,先后参与国家重点研发计划、国家自然基金面上项目、广东省重点研发项目等国家级、省部级项目。

  报告二:

  (1)主 题:Synthesis of MAX Phase Nanofibers and Nanoflakes and the Resulting Mxenes

  (2)主讲人:骆沙  材料与能源学院博士后 

  (3)交流内容:

  Layered ternary carbides and nitrides, also known as MAX phases, have attracted enormous attention for many applications, especially as precursors to produce 2D metal carbides and nitrides called MXenes. However, it is still challenging to tune and control the shape/morphology of MAX phase particles at the nanoscale, as they are typically manufactured as large grains using ceramic technology. Herein, nanostructured Ti-Al-C MAX phases with fine-tuned morphology of nanofibers and nanoflakes are prepared by using 1D and 2D carbon precursors at low temperature. The nanostructured MAX phases are used as precursors to produce nanosized multilayered MXenes, with a considerably shorter etching time and a low reaction temperature. Availability of nanoscale MAX phases and MXene nanoflakes with small lateral size may open new opportunities for both classes of materials.

  (4)主讲人简介:

  Luo Sha’s research focuses mainly on the construction of interfaces and pores in carbon materials, the controllable preparation of carbon-derived MAX phases and MXenes, and their charge-discharge behavior in capacitors. Currently, he is conducting mechanistic research on the composition and structure of carbon anode materials for neutral zinc-air batteries in the research group of Professor Sun Wei.

  报告三:

  (1)主 题:Nanoconfined Engineering over Nanostructured Copper towards Electrocatalytic C-C Coupling

  (2)主讲人: 刘春晓  材料与能源学院博士后

  (3)交流内容:

  In this talk, we would introduce Cu hollow multi-shell structures (HoMSs), with a shell number facilely tunable from 1 to 3, which serve as a simple and flexible platform to decipher the nanoconfinement effects on CO2RR. As the shell number increases, the Cu HoMSs displayed a remarkable enhancement in both selectivity and activities towards C2+ species.

  (4)主讲人简介:

  C. Liu received the Bachelor degree and Ph.D. degree from University of Science and Technology of China, in 2017 and 2022, respectively. He currently works as a Postdoctoral Fellow in the School of Materials and Energy of UESTC. Dr. Liu has been working in the field of electrocatalysis. His main research focuses on the catalysts and reactors design towards electrocatalytical conversion of small molecules such as CO2, H2O, and O2.

  报告四:

  (1)主 题:RF-powered standalone multifunctional physiological sensing system

  (2)主讲人:朱佳  材料与能源学院博士后 

  (3)交流内容:

  In the last decade, we have witnessed the rapid development of flexible electronics in physiological condition measurements, chronic disease monitoring and treatments, human-machine interface, and soft robotics.  However, it is realized that the efficacy of flexible electronics in practical applications has been severely hindered by the power supply, manifested by a short lifetime or frequent battery replacements.  Therefore, building self-powered flexible sensing systems that harvest energy from the ambient environment holds great potential to address this issue.  Within this aim, we have proposed to exploit the always-on and ubiquitous RF energy and build an RF-powered flexible physiological monitoring system that can wirelessly measure key physiological parameters (e.g., pulse and respiratory) and detect human motions.  In order to circumvent the almost universal detuning phenomenon of flexible antennas under deformations, a delicate structural design was adopted to achieve strain-insensitive on-body radiation properties for robust RF energy harvesting.  Combining the multifunctional sensing module based on laser-induced graphene, the standalone sensing platform allows real-time and continuous movements for the human-machine interface (HMI).

  (4)主讲人简介:

  Jia Zhu is a postdoctoral researcher affiliated with the school of Material and Energy of UESTC. He earned a Bachelor's and Master's degree in Material Physics and Condensed Materials from SYSU and completed his PhD research in Engineering Science and Mechanics at Penn State University under the supervision of Prof. Huanyu Cheng. His research interests focus on flexible/implanted biosensors, RF energy harvesting, and self-powered physiological monitoring systems.

  报告五: 

  (1)主 题:金属玻璃的玻璃态及性能调控研

  (2)主讲人:陈颉颃  材料与能源学院博士后  

  (3)交流内容:

  金属玻璃具有原子结构上高度无序且空间分布上不均匀的特点,在热力学能量上处于亚稳非平衡态。开展金属玻璃的弛豫特性及微结构多维度调控研究,对于揭示金属玻璃的玻璃态本质有重要作用,且为进一步调控性能和设计提供指导。本研究运用多种先进测试和分析技术,实现对金属玻璃结构和性能的多维调控和表征。主要对Au-基金属玻璃的弛豫特性进行系统的研究,同时利用压力对Au-基金属玻璃的微观结构进行调控,通过不同压力下空间不均匀结构的变化揭示压力诱导的不同玻璃态现象也许是金属玻璃中的一种较普遍的现象。

  (4)主讲人简介:

  陈颉颃于2016年和2022年分别获得东北大学学士学位和中国工程物理研究院博士学位,现任电子科技大学材料与能源学院博士后。陈博士主要从事新材料结构与性能调控领域的研究工作。目前主要研究方向为先进能源材料的合成、多维度多尺度调控材料的结构与性能、结构能源一体化锂电池结构设计等。

  报告六: 

  (1)主 题:微结构柔性压阻型传感器的制备与性能研究

  (2)主讲人:潘虹  材料与能源学院博士后

  (3)交流内容:

  压阻型传感器,因其能耗低、灵敏度高、易集成等优点,应用于健康监测、疾病诊断、精密手术等医疗服务中,在下一代可穿戴医疗电子中备受关注。在传感器技术的不断发展背后,仍存在不同微结构的压敏机理不完善、器件与皮肤共型接触有待提高、难以兼顾灵敏度和检测范围、拓展传感器对多元信号监测等难题。因此,通过构建不同微结构,系统研究压敏机理,兼顾灵敏度和检测范围,改善传感特性,并开展了多元化复杂生理信号的监测。

  (4)主讲人简介:

  潘虹,电子科技大学材料与能源学院博士后,合作导师向勇教授,2014年在西南大学食品与科学工程学院获得学士学位,2017年在西南交通大学材料与科学学院获得硕士学位,师从杨维清教授;2022年在电子科技大学光电科学与工程学院获得博士学位,师从谢光忠教授,主要研究方向为可穿戴电子、敏感材料与传感器。


                       人力资源部博士后管理办公室

                          2023年4月12日


编辑:李文云  / 审核:林坤  / 发布:陈伟

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