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Breathing Colloidal Monolayers

delete2025-07-19
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PRE
AI
B
Barry Lai
D
Dengping Lyu
M
Matthew Chan
Z
Zhisheng Wang
T
Tianran Zhang
李伟 封面图
李伟 (Wei Li)
Y
Yijiang Mu *
王玉峰 封面图
王玉峰 (Yufeng Wang) *
DOI:10.1021/jacs.5c05105delete
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摘要

摘要

En 中文
可逆多形性转变在分子晶体中很常见,并被用于设计可重构材料。然而,将这一概念应用于胶体超晶格,其中微尺度粒子是构建块且存在不同的相互作用,仍然是一个挑战。在此,我们报道了能够各向异性膨胀和收缩的二维胶体超晶格(或单层),它们能够可逆地转变具有开放和封闭介孔的多晶型物。这些超晶格由截顶六角双锥形状的多面体粒子组装而成,并通过联合使用耗尽相互作用和交流电场诱导的相互作用。在粒子组装中可以利用面重叠和偶极对齐,它们的相互作用使得形成具有可调轴向角和孔隙率的多样化菱形超晶格成为可能。该组装具有各种结构重构动力学,促进了晶体退火。两种多孔超晶格之间快速可逆的切换表现出刺激响应的呼吸行为。我们的工作为响应性仿生胶体材料提供了一种策略。
Keyword:
reversible polymorphic transitions
colloidal superlattices
stimuli-responsive materials
particle assembly
mesoporous structures

期刊

Journal of the American Chemical Society 封面图
Journal of the American Chemical Society
IF:
15.6
论文数:
20.0W
被引数:
60.2W

机构

T
The University of Hong Kong
学者数:
6.6K
论文数: 3.2K
被引数: 7
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