Evaporation-Induced Self-Assembly of Metal Oxide Inverse Opals: From Synthesis to Applications.
Evaporation-Induced Self-Assembly of Metal Oxide Inverse Opals: From Synthesis to Applications.
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DOI：
10.1021/acs.accounts.2c00087
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发表时间：
2022-07-05
影响因子：
18.3
通讯作者：
Aizenberg, Joanna
中科院分区：
文献类型：
--
作者：
van der Hoeven, Jessi E. S.;Shneidman, Anna, V;Nicolas, Natalie J.;Aizenberg, Joanna
反蛋白石（IOs）是高度互连的三维大孔结构，在从光学到催化的各种学科中具有应用。例如，当孔径在可见光波长的范围内时，IO由于光的衍射和干涉而不是由于颜料的吸收而表现出结构色，使得这些结构作为不褪色的油漆和着色剂是有价值的。当IO孔处于有序排列时，IO是3D光子晶体，这是一种具有大量有趣光学特性的结构，可用于从传感器到激光器的多种应用中。IO还具有由孔的凹入几何形状引起的有趣的流体性质，使得它们成为基于流体表面张力的比色传感器的优秀候选者。特别地，金属氧化物IO也可以是光催化活性和热催化活性的，这是由于背景基质材料或嵌入结构内的功能纳米颗粒的催化活性。牺牲颗粒的蒸发诱导自组装已经被开发为用于形成IO的可扩展方法。可以通过选择沉积条件（例如温度和湿度、自组装混合物中组分的类型和浓度以及组装后处理）来设计IO的孔径和形状、表面化学、基质材料和宏观形状以及功能组分的包含。这些参数使研究人员能够调整IO的光学，机械和热传输特性，以实现最佳功能。在这个帐户中，我们专注于实验和理论研究，以了解金属氧化物IO的自组装过程和性质，而不（裸）和（混合）等离子体或催化金属纳米粒子的掺入。首先介绍了几种合成方法，以及在组装过程中所涉及的各种力量的讨论。可视化的沉积前沿与延时显微镜一起讨论与分析理论和数值模拟，以确定所需的条件，连续IO膜的沉积。随后，我们提出了高分辨率的扫描电子显微镜（SEM）组装胶体在大面积，它提供了一个详细的视图的组装过程的演变，显示的组织的胶体最初决定的弯月面的蒸发悬浮液在基板上，但逐渐所有的晶粒旋转，占据最有利的取向。高分辨率的三维透射电子显微镜（TEM），然后提出连同分析的润湿的模板胶体的基质前体，以提供一个详细的图片的金属纳米粒子的嵌入在孔隙-基质界面。最后，讨论了由此产生的性能和应用在光学，润湿和催化，最后展望了未来的自组装金属氧化物为基础的IO。
Inverse opals (IOs) are highly interconnected three-dimensional macroporous structures with applications in a variety of disciplines from optics to catalysis. For instance, when the pore size is on the scale of the wavelength of visible light, IOs exhibit structural color due to diffraction and interference of light rather than due to absorption by pigments, making these structures valuable as nonfading paints and colorants. When IO pores are in an ordered arrangement, the IO is a 3D photonic crystal, a structure with a plethora of interesting optical properties that can be used in a multitude of applications, from sensors to lasers. IOs also have interesting fluidic properties that arise from the re-entrant geometry of the pores, making them excellent candidates for colorimetric sensors based on fluid surface tension. Metal oxide IOs, in particular, can also be photo- and thermally catalytically active due to the catalytic activity of the background matrix material or of functional nanoparticles embedded within the structure. Evaporation-induced self-assembly of sacrificial particles has been developed as a scalable method for forming IOs. The pore size and shape, surface chemistry, matrix material, and the macroscopic shape of the IO, as well as the inclusion of functional components, can be designed through the choice of deposition conditions such as temperature and humidity, types and concentrations of components in the self-assembly mixture, and the postassembly processing. These parameters allow researchers to tune the optical, mechanical, and thermal transport properties of IOs for optimum functionality. In this Account, we focus on experimental and theoretical studies to understand the self-assembly process and properties of metal oxide IOs without (bare) and with (hybrid) plasmonic or catalytic metal nanoparticles incorporated. Several synthetic approaches are first presented, together with a discussion of the various forces involved in the assembly process. The visualization of the deposition front with time-lapse microscopy is then discussed together with analytical theory and numerical simulations to determine the conditions needed for the deposition of a continuous IO film. Subsequently, we present high-resolution scanning electron microscopy (SEM) of assembled colloids over large areas, which provides a detailed view of the evolution of the assembly process, showing that the organization of the colloids is initially dictated by the meniscus of the evaporating suspension on the substrate, but that gradually all grains rotate to occupy the thermodynamically most favorable orientation. High-resolution 3D transmission electron microscopy (TEM) is then presented together with analysis of the wetting of the templating colloids by the matrix precursor to provide a detailed picture of the embedding of metallic nanoparticles at the pore–matrix interface. Finally, the resulting properties and applications in optics, wetting, and catalysis are discussed, concluding with an outlook on the future of self-assembled metal-oxide-based IOs.
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影响因子：
--
作者：
MALITSON, IH
通讯作者：
MALITSON, IH
DOI：
10.1073/pnas.2107588118
发表时间：
2021-08-10
影响因子：
11.1
作者：
Li L;Goodrich C;Yang H;Phillips KR;Jia Z;Chen H;Wang L;Zhong J;Liu A;Lu J;Shuai J;Brenner MP;Spaepen F;Aizenberg J
通讯作者：
Aizenberg J
影响因子：
3.4
作者：
Mouchet, Sebastien R.;Luke, Stephen;Vukusic, Pete
通讯作者：
Vukusic, Pete
影响因子：
4.6
作者：
Kaplan, C. Nadir;Wu, Ning;Mahadevan, L.
通讯作者：
Mahadevan, L.
影响因子：
4.6
作者：
Adera S;Naworski L;Davitt A;Mandsberg NK;Shneidman AV;Alvarenga J;Aizenberg J
通讯作者：
Aizenberg J