| 查看: 888 | 回复: 5 | |||
[交流]
招收CSC博士生
|
|||
|
导师人不错，想找一个CSC学生，具体的项目内容如下，如果有想来此的话，可以直接联系老师。 Polymers soft templates for synthesis of catalytic materials Porous materials own remarkable structural features such as: large specific surface areas and pore volumes, tunable pore sizes and architectures, and a diversity of frameworks. These characteristics position them at the forefront of innovative and sustainable solutions to many of catalysis, energy storage, sensing, and biomedicine’s demands. Current research on porous materials is facing several challenges, including the generation of well-controlled pore sizes and structures, precise characterization and ensuring their stability under real world conditions, such as harsh chemical environments or high temperatures. To date, various synthetic protocols have been developed for synthetizing porous materials, including template-free, hard-templating and soft-templating approaches. While template-free strategies typically suffer from difficulties in tailoring the morphology and pore structures, the hard-templating one (such as preformed silica or carbon) suffer from tedious multi-steps procedures limiting their scalability. In contrast, soft templating offers a large versatility and can be ingeniously used for the replica of various functional porous materials [1, 2] with the possibility to easily remove the polymeric matrix in the end. For example, block copolymers (BCPs), with immiscible blocks, spontaneously assemble in selective solvents leading to nanostructures, such as vesicles, cubosomes and hexosomes. These assemblies are highly robust, have a high loading capacity and form mesopores in a wide scale range.[1] All these properties are advantageous to many host-guest interactions, but not yet fully exploited in the field of functional porous materials. Currently, most reported polymer cubosomes, (well-defined inverse bicontinuous cubic mesophases) consist of polystyrene block copolymers, whose self-assembly parameters are rather well understood. The channels of polymer cubosomes were effectively used in order to synthesize metal organic framework (MOFs) materials. [2] Other recent studies exploited these “soft templates” as versatile platforms for the synthesis of highly ordered nanoporous metal oxide with high specific surface area (up to 123 m2 g-1 for WO3), different well controlled pore structures of sizes ranging between 18 and 78 nm.[3] More interesting, Fe3O4-doped mesoporous carbon materials as cathode for the Li-S batteries were obtained by impregnation of the polymer cubosomes with Fe ions and plant polyphenols, as natural and nontoxic biomass ligands. These metal-polyols complexes are excellent precursors for the fabrication of carbon based materials to be used in electrochemical-systems. [4] The objectives of this PhD project are: 1. To use copolymers alternative to polystyrene based ones to prepare polymer assemblies with ordered structures, acting as suitable soft templates for mineral charging. Changing the chemical nature of the blocks is highly desirable to introduce greater functionality. However, knowledge of the impact of new chemistries on the self-assembly process remains limited and requires further investigation. We have recently reported on a simple method to obtain controlled three-dimensional hybrid architectures, formed by gold nanoparticles and a double hydrophilic block copolymer, specifically the poly(acrylic acid)-block-poly(N-vinyl-2-pyrrolidone) (PAA-b-PVP) (synthetised by RAFT polymerisation), directly in aqueous medium. [5] We plan to test the incorporation of naturally occurring polyphenols in order to reinforce and modulate the structure of these assemblies.[6,7] Poly(ethylethylene phosphate)-b-polylactide (PEEP-b-PLA) will also be considered as interesting alternative.[8] This fully degradable copolymer forms highly ordered cubosomes and is particularly attractive for the mineral loading due to the expected favorable interactions with the metallic ions, while also guarantying environmental sustainability. 2. To prepare inorganic porous materials through the replication of the polymer template. (Figure 1) The open channels of the ordered cubosomes together with the chemical functions of the polymers are advantageous for host-guest interactions. Impregnation strategies are therefore straightforward and could be applied to produce a diversity of inorganic materials. The polymer template could be subsequently removed by solubilization, degradation or pyrolysis. 3. To characterize the formed materials with a particular attention to the effect of the type, strength and dynamic nature of the interactions under varying conditions. Understanding the role of diverse interactions involved will be essential to rationalize the different phenomena which govern the final structure of the material and fine-tune their properties for specific applications. Profile and skills required : We are looking for a candidate with a chemistry academic background and if possible knowledge of polymer chemistry and/or materials science. The candidate have to master the characterization techniques commonly used in chemistry (NMR, IR, UV-Vis) and if possible to have knowledge of techniques for the characterization of materials such as transmission electron microscopy (TEM), x-ray diffraction (XRD), etc. If you are interested in this offer contact Diana Ciuculescu-Pradines (eliza.ciuculescu-pradines@univ-tlse3.fr and Barbara Lonetti (barbara.lonetti@univ-tlse3.fr) |
回复此楼» 猜你喜欢
一志愿东华大学控制学硕320求调剂
已经有3人回复
-
考研化学学硕调剂，一志愿985
已经有7人回复
-
333求调剂
已经有6人回复
-
化学工程321分求调剂
已经有21人回复
-
0703化学调剂
已经有15人回复
-
0703化学调剂 ，六级已过，有科研经历
已经有14人回复
-
326求调剂
已经有4人回复
-
311求调剂
已经有13人回复
-
311求调剂
已经有7人回复
-
材料与化工（0856）304求B区调剂
已经有7人回复
» 抢金币啦！回帖就可以得到:
-
求购电镜上的液氮罐
+5/190
-
福建师范大学叶应祥课题组招收2026级博士研究生
+2/160
-
祈福2026国基面上项目
+5/125
-
招收调剂生，动物医学专业
+1/84
-
化学化工学院 招收化工、化学、材料等相关方向研究生（学硕、专硕都有调剂名额）
+1/83
-
华南理工-广中医联合招收生物医学与材料交叉学科博士生
+1/82
-
2026 物理方向招收部分调剂
+1/34
-
上海交通大学沈道智副教授招收2026年联培博士/硕士研究生（微纳器件与制造方向）
+1/33
-
2026年黄河科技学院纳米功能材料研究所招聘
+2/22
-
【预硕】【预博】青岛大学生物医药创新转化
+1/15
-
招收专业代码08的学硕！
+1/15
-
湖南大学微生物结构与功能实验室2026年计划招收博士研究生
+1/15
-
临沂大学数学与统计学院招2026研究生
+1/15
-
宁波东方理工大学余鹏课题组2026年上海交大联培博士生、博士后、科研助理招聘
+1/9
-
新加坡国立大学药学系化学生物学课题组招PhD
+1/6
-
中国农科院兰州牧药所兽药创新与耐药性科研团队聘科研助理，急急急！
+1/5
-
2026考研的同学，分数不够？想调剂上岸的同学，来看
+1/2
-
西安交通大学生命学院智能化诊疗装备研究中心2026年博士生招生
+1/1
-
求日语机械调剂，一志愿长安大学专硕332
+1/1
-
309求调剂 一志愿东华大学
+1/1
简单回复
tzynew2楼
2024-12-14 06:51
回复
李哲123456(金币+1): 谢谢参与
k 发自小木虫手机客户端
风吹荷叶煞3楼
2024-12-14 08:15
回复
庚辰辛丑4楼
2024-12-14 08:24
回复
李哲123456(金币+1): 谢谢参与
nono20095楼
2024-12-14 09:11
回复
李哲123456(金币+1): 谢谢参与
·
lymjjh6楼
2024-12-14 17:31
回复
李哲123456(金币+1): 谢谢参与
