2018年9月1日 · In this study, nanosized ZIF-8 particles with narrow and monomodal particle size distribution were successfully synthesized by carrying out the ZIF-8 synthesis in ice bath condition using high concentrations of zinc (Zn2+, 0.20 M) and 2-methylimidazolate (2-mIm −, 1.60 M) ions.

2020年9月28日 · A two-in-one synthesis and sample preparation method of ZIF-8 for transmission electron microscopy (TEM) investigation is presented. ZIF-8 is grown layer-by-layer directly on thin amorphous carbon fi...

2023年12月12日 · The TEM study shows the existence of a rhombic dodecahedron structure of 6ZIF-67/ZIF-8 nanocomposite. The TEM image (Figure 4B) illustrates the intact ZIF-8 microsphere structure, indicating successful loading of ZIF-67 onto ZIF-8, with the outer darker layer of ZIF-67 and inner circle of ZIF-8.

2022年2月9日 · Work presented here shows how the synthesis of ZIF-8 can be tracked by a range of methods including X-ray diffraction, thermo gravimetric analysis and inelastic neutron scattering – which offer...

2020年9月28日 · ZIF-8 沉积在非晶碳薄膜上，并通过（扫描）TEM（ (S)TEM）进行结构分析。 该方法可作为一种二合一的合成和 TEM 样品制备技术，可以直接分析 ZIF-8 微晶。 这种方法完全避免了因样品制备而产生的伪影。 通过各种（分析）电子显微镜方法以高空间分辨率研究材料的形态特性、晶体结构和化学成分。 此外，通过将相应的步骤集成到逐层沉积过程中，研究了将金属纳米粒子掺入 ZIF-8 中。 在没有纳米颗粒形成合成步骤的情况下，ZIF-8 晶体在薄膜上的形成过 …

2024年11月20日 · Ag@ZIF-8 core-shell nanocomposites were successfully synthesized via a facile method. The optimal ZIF-8 shell thickness (30 nm) was determined for maximum SERS enhancement. Ag@ZIF-8 exhibited excellent SERS signal uniformity (RSD 6.91 %) and long-term stability (4.5 % decrease after 28 days).

3 天之前 · For example, ZIF-8@ZIF-67 bimetallic composite fabricated in a simple way at room temperature 31 displayed high ... the higher the surface area, which directly enhances the adsorptive properties. Additionally, the TEM images of the [email protected] composite in Fig. 4a–c provide further evidence of the assembly of ZIF-8 over graphene ...

2025年3月7日 · Gas permeation results indicate that compared with bulk ZIF-8 filler, fast diffusion pathways for guest molecules are established in H-ZIF-8 filler, resulting in a CO 2 /N 2 separation factor (SF) of 48.77 with CO 2 permeability of 645.76 Barrer in terms of H-ZIF-8 MMMs with 6 wt % loading, which well exceeds the 2008 Robenson upper bound for ...

2025年1月15日 · ZIF-8, a subclass of metal–organic frameworks (MOFs), is renowned for its large specific surface area, high porosity, rapid electron transfer ability, abundant functionalities, ease of designing, controllable properties, and remarkable chemical and thermal stability.

1 天前 · Figure 2d presents the typical TEM image of Cs 3 Bi 2 I 9 /ZIF-8. The boundary of the blurred Cs 3 Bi 2 I 9 hexagon and the irregular boundary of ZIF-8 can be discernible. Through high-resolution TEM, two different lattice stripes of Cs …