2017
DOI: 10.1002/cjoc.201700017
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Direct Observation of Growth and Self‐assembly of Pt Nanoclusters in Water with the Aid of a Triblock Polymer Using in situ Liquid Cell Transmission Electron Microscopy (TEM)

Abstract: Triblock copolymers are playing important roles in nanomaterial synthesis, and the nanomaterial forming mechanisms need to be studied in detail. In situ liquid cell transmission electron microscopy (TEM) is a powerful tool for real time observation of the dynamic growth behavior of nanomaterials in liquid with high resolution, and could be used for the above task. Here we report the observation of the growth and self-assembly of Pt nanoclusters with the aid of an ethylene oxide-propylene oxide-ethylene oxide t… Show more

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Cited by 6 publications
(2 citation statements)
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“…In-situ liquid cell transmission electron microscopy (TEM) has high spatial and temporal resolutions in real time [14] and can directly observe the structural dynamic evolution of nanocrystals in the liquid environment, including the growth and etching of nanocrystals [15][16][17][18][19][20][21][22][23][24][25], which is a powerful technical tool to reveal the structural evolution mechanism of nanocrystals. At present, the in situ liquid cell TEM study on the anisotropic etching dissolution of noble metal nanorods mainly uses the high electron beam dose to irradiate the aqueous solution to form oxidizing groups to induce the etching of nanorods [23][24][25][26].…”
Section: Introductionmentioning
confidence: 99%
“…In-situ liquid cell transmission electron microscopy (TEM) has high spatial and temporal resolutions in real time [14] and can directly observe the structural dynamic evolution of nanocrystals in the liquid environment, including the growth and etching of nanocrystals [15][16][17][18][19][20][21][22][23][24][25], which is a powerful technical tool to reveal the structural evolution mechanism of nanocrystals. At present, the in situ liquid cell TEM study on the anisotropic etching dissolution of noble metal nanorods mainly uses the high electron beam dose to irradiate the aqueous solution to form oxidizing groups to induce the etching of nanorods [23][24][25][26].…”
Section: Introductionmentioning
confidence: 99%
“…The aforementioned divergence and complexity indicate that more comprehensive understanding should be taken into account when we refer to the formation mechanism of nanostructures of certain metals in liquid. Recently, in situ liquid cell transmission electron microscopy (TEM) with high spatial and temporal resolutions has emerged as an active domain of research that can provide direct visualization evidence of the synthesis of nanostructures in liquids. The electron beam is used both for imaging and as means of reducing a precursor species in solution, which allows the nucleation and growth of a wide variety of metals and compounds to be followed in real time. Many recent studies have proved that nanocrystals synthesized in such a liquid cell resemble those from flask synthesis .…”
Section: Introductionmentioning
confidence: 99%