To be a frontier scientist is my dream and I devote

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To be a frontier scientist is my dream and I devote myself on the way.
Nature creates complex structures through molecular self-assembly and Nanoscience
endows humans with the same power. Fascinated by this idea, I started my
exploration and hope my work will bring advancement in society.
To better prepare myself, I spared no effort on my study. In the School of Advanced of
Engineering(SAE, only for top 1.5% students), I studied many special courses on
mathematics and physics, which greatly benefit my logic thinking and help me deeper
understand chemistry courses. Principles and formulas seem quite clear and thus I can
learn them more quickly. What’s more, I tried to apply Advance Algebra, Functional
Analysis and Partial Differential Equations into the analysis of nanomaterial
structures and properties and found them very useful. Combination of mathematics
and chemistry helped me get great improvement on both. As the reward of my
devotion, I got ranking 1st in both SAE and chemistry college.原来的得奖经历为什
么删了呢?现在这样改感觉出来了,但是这一段有一点点空了,实实在在的内容
不够多。在有感觉的同时,内容要跟上啊,体现为信息量大,而且实在(用事实
说话,而不是像标注的两句一样谈主观的感受或者表态,即使这些是真的)。上
一版这里的批注 2、3 你再看一下。
Nanomaterial synthesis is the basis for nanoscience and self-assembly is a powerful
tool. As a sophomore, I began my research in this area.
My first project is the synthesis of 1-D nano maganite materials (NMWs), which are
promising to be superior electrode materials in fuel cells due to their excellent
electrocatalysis and electron transfer performance. But how to produce uniform
NMWs with a simple method still remains a question. My partner and I succeeded in
designing a simple reaction system which can produce NMWs under ambient
temperature. We used MnSO4 and NaHCO3 as the reactants. The key is to use glycol
as the solvent and adding some water in the reaction process to influence the reaction
equillium. I proposed glycol had three functions in this experiment. First it had proper
viscosity, which could slow down the reaction and stabilize the growth of nanowires.
Second, it could absorb selectively on the different surfaces of nanowire crystals. This
will result in highly oriented growth of nanowires. Furthermore, glycol can form a
steady chelating complex with Mn2+ in alkali medium. By adding water, the
chelating equilium was influenced and nanowires were precipitated slowly and
steadily, resulting in uniform ultrathin NMWs.
Self-assembly of inorganic/organic nano composite also attracts me. Palladium and
polymer complexes are long considered to be a kind of promising catalytic materials.
But there is little report about palladium sulfide/polymer complexes, which may
possess distinctive catalytic properties. We succeeded in compensating this deficiency.
Based on the experience of the first project, we employed glycol again in the
construction of the reaction system. We employed a glycol-dimethyl sulfoxide system
in which Pd(Ac)2 was reduced by pyrrole monomer and induced the polymerization
of pyrrole. Under hydrothermal condition, the palladium sulfide nanoparticles and
polypyrrole self-assembled into a hierarchical core/shell structure. Dimethyl sulfide
played an important role. First it provided sulfur to form palladium sulfide. Second it
could increase the solubility of Pd(Ac)2 which is insoluble in glycol.
上面这两段本身写清楚,再根据专业知识做一点延展,记得咱们学基于血糖负荷
的食物交换份法***的那个例子吧,要扩展谈你对专业的理解和认识不仅仅局限
于做的事。
My future research interests will focus on highly-ordered self-assembly of
nanomaterials and their fabrication into nanosystems and nanodevices. Two issues
will be my recent focus.
1. To mimic nature to produce more highly ordered nanomaterials and nanostructures
for functional nanosystems and nanodevices.
One way is to use biomolecules as templates. One of my possible thought is to deposit
specific DNA sequence patterns on substrates and then induce specific growth of 1-D
nanowires and resulting in ordered nanowire patterns.
2. To build mathematic models about self-assembly and predict the behavior of
self-assembled nanosystems. 这里谈的有点少啊
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