博士后学术沙龙(第23期)

文:唐小青 / 来源:党委教师工作部、人力资源部 / 2018-04-16 / 点击量:985

  为搭建我校博士后学术交流平台,促进学术水平提升,学校博士后管理办公室组织开展博士后学术沙龙活动。本次沙龙由我校基础与前沿研究院博士后岳秦、罗明、吴小强、杨莉、王法泽分享其研究成果,诚挚邀请感兴趣的师生参加。

  一、时 间:2018年4月18日(周三)14:30

  二、地 点:沙河校区通信楼818

  三、主办单位:电子科技大学博士后管理办公室

    承办单位:基础与前沿研究院

  四、活动安排:

  报告一:

  主 题:Functional Core-Shell Mesoporous materials: Design Synthesis & Applications

  主讲人:岳 秦 基础与前沿研究院博士后

  交流内容:

  Construction of core−shell nanostructures with an outer mesoporous shell are highly desired in catalysis, adsorption and separation, gas sensors, energy storage and conversion, owing to the unique core-shell structures with high surface area, large pore volume, 3-D connected mesopores. However, the traditional core-shell mesoporous materials possess limited mesopore size and morphology, which is not suitable for accommodate large macromolecules such as protein, enzyme, high molecular weight polymers. Therefore, it is of great importance and interest to develop new methods to design synthesis of functional core-shell mesoporous materials with tunable larhe mesopore size, controllable morphologies, and various mesoporous components, so as to meet the requirements in various applications.

  主讲人简介:

  岳秦博士是基础与前沿研究院国家“千人计划”青年项目入选者康毅进教授的博士后,2017年“博士后创新人才支持计划”入选者,2017年电子科技大学优秀博士后获得者。岳秦博士在站期间,主要从事电解水制氢理论基础研究,指导设计合成低价高效金属催化剂材料。2016年,岳秦博士在复旦大学获得理学博士学位;2016-2017年,在中国工程物理研究院核物理与化学研究所担任助理研究员。以第一作者在J.Am.Chem.Soc.发表论文2篇,J.Mater.Chem.A发表论文1篇,J.Mater.Chem.B发表论文1篇, Angew.Chem.Int.Ed.发表论文1篇。

  报告二:

  主 题:Ta3N5: A Promising Photoanode Material for Solar-driven Water Splitting

  主讲人:王法泽 基础与前沿研究院博士后

  交流内容:

  Increasing access to renewable energy holds great promises to mitigate the environmental crisis caused by the use of fossil fuels and pave the way to a truly sustainable society. Solar energy is cleanest and most abundant renewable energy source available on Earth. The conversion and storage of solar energy in chemical form, mimicking the natural photosynthesis, is considered as a promising option in complementing with existing photovoltaic technologies. Photoelectrochemical (PEC) water splitting, which directly coverts solar energy into hydrogen fuels, is an important approach for solar-fuel conversion. Among many semiconductor materials studied in recent years, tantalum nitride (Ta3N5) has emerged as one of the most promising photoanode materials for solar-driven PEC water splitting because of its suitable band gap (~2.1 eV) and band positions. The photocurrent density could reach 12.9 mA/cm2 under standard illumination (AM 1.5G) and the maximum solar energy conversion efficiency could be over 15% in theory. In this presentation, I will briefly outline the development of tantalum nitride-based materials as photoanode for solar-driven PEC water splitting. In addition, I will discuss future designs to further reduce their onset potential towards high-STH photoelectrochemical (PEC) water splitting.

  主讲人简介:

  王法泽博士是基础与前沿研究院国家“千人计划”青年项目入选者李严波教授的博士后,2017年毕业于上海交通大学物理与天文系,获物理学博士学位。王法泽博士在站期间主要研究内容为Ⅲ-Ⅴ族半导体异质结构的构建及其在太阳能驱动光电化学分解水中的应用研究。曾以第一作者在Scientific Reports, Nanotechnology等国际高水平期刊发表学术论文。

  报告三:

  主 题:Polydopamine Particles Reinforced Poly(Vinyl Alcohol) Hydrogel with NIR Light Triggered Shape Memory and Self -healing Capability

  主讲人:杨 莉 基础与前沿研究院博士后

  交流内容:

  This study focuses on developing a facile approach to prepare biocompatible poly(vinyl alcohol) (PVA) composite hydrogels containing polydopamine particles (PDAPs) with ultra-fast NIR light triggered shape memory and self-healing capability. The PVA-PDAPs composite hydrogels with excellent mechanical properties can be achieved after freezing/thawing treatment, and the formation of physically cross-linked networks from the hydrogen bonding (H-bonding) between PVA and PDAPs. Due to the excellent photothermal effect of polydopamine, the composited hydrogel can achieve rapid shape recovery and efficient self-healing properties under NIR light exposure in a short time. With the excellent shape memory performance, good biocompatibility and self-healing property, this hydrogels should have great potentials in biomedical fields such as tissue engineering, arthrodial cartilage and artificial skin.

  主讲人简介:

  杨莉博士是基础与前沿研究院国家“千人计划”青年项目入选者崔家喜教授的博士后,2017年毕业于四川大学,获得工学博士学位。杨莉博士在站期间主要从事大面积破损自修复聚合物材料的研究,曾在Macromol. Rapid Commun.,ChemPhysChem等国际期刊发表学术论文。

  报告四:

  主 题:化学发光材料研究

  主讲人:罗 明 基础与前沿研究院博士后

  交流内容:

  化学发光 (Chemiluminescence) 是物质在进行化学反应过程中伴随的一种光辐射现象。化学发光根据其反应介质的状态可以分为气相和液相两大类, 而液相化学发光应用最广。化学发光法与高效液相色谱、传感器技术以及流动注射技术等其他技术的联用,因具有分析速度快、设备简单、灵敏度高及线性范围宽等优点,已经广泛应用于化学食品安全、生物医学、环境检测等领域。本次报告主要讨论将化学发光和聚集诱导发光结合,实现具有聚集诱导发光性质的化学发光现象。

  主讲人简介:

  罗明博士是基础与前沿研究院国家“千人计划”青年项目入选者赵辉教授的博士后,2016年毕业于厦门大学,获得理学博士学位。罗明博士在站期间主要研究纳米受限空间内GFP生色团及其衍生物:合成和表征。曾以第一作者在Journal of the American Chemical Society,Chemical Science等国际高水平期刊发表学术论文。

  报告五:

  主 题:Activity Trends of Binary Silver Alloy Nanocatalysts for Oxygen Reduction Reaction in Alkaline Media

  主讲人:吴小强 基础与前沿研究院博士后

  交流内容:

  The electrocatalytic activity of Pt-based alloys exhibits a strong dependence on their electronic structures, but a relationship between electronic structure and oxygen reduction reaction (ORR) activity in Ag-based alloys is still not clear. Here, a vapor deposition based approach is reported for the preparation of Ag75M25 (M = Cu, Co, Fe, and In) and AgxCu100−x (x = 0, 25, 45, 50, 55, 75, 90, and 100) nanocatalysts and their electronic structures are determined by valence band spectra. The relationship of the d-band center and ORR activity exhibits volcano-shape behaviors, where the maximum catalytic activity is obtained for Ag75Cu25 alloys. The ORR enhancement of Ag75Cu25 alloys originates from the 0.12 eV upshift in d-band center relative to pure Ag, which is different from the downshift in the d-band center in Pt-based alloys. The activity trend for these Ag75M25 alloys is in the order of Ag75Cu25 > Ag75Fe25 > Ag75Co25. These results provide an insight to understand the activity and stability enhancement of Ag75Cu25 and Ag50Cu50 catalysts by alloying.

  主讲人简介:

  吴小强博士是基础与前沿研究院国家“千人计划”青年项目入选者乔梁教授的博士后,2017年毕业于西北工业大学,获得理学博士学位。吴小强博士在站期间主要研究La1+xMn1-xO3钙钛矿氧化物基超级电容-金属空气混合动力电池,曾以第一作者在Acs applied materials & interfaces,Journal of materials chemistry A,Small等国际高水平期刊发表学术论文。


                  电子科技大学博士后管理办公室

                    基础与前沿研究院

                     2018年4月16日

 

编辑:林坤  / 审核:罗莎  / 发布者:陈伟