Layer by Layer Construction of Metal–Organic Molecule Bilayer on a Au(111) Surface

2010 ◽  
Vol 39 (2) ◽  
pp. 110-111 ◽  
Author(s):  
Deyu Qu ◽  
Mikio Ito ◽  
Hidenori Noguchi ◽  
Kohei Uosaki
Keyword(s):  
Organic Molecule ◽  
Layer By Layer ◽  
Metal Organic

scholarly journals Modeling the Layer-by-Layer Growth of HKUST-1 Metal-Organic Framework Thin Films

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1631
Author(s):  
Qiang Zhang ◽  
Yohanes Pramudya ◽  
Wolfgang Wenzel ◽  
Christof Wöll
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Deposition Rate ◽  
Layer Growth ◽  
Coarse Grained ◽  
Structural Defects ◽  
Effect Of Temperature ◽  
Layer By Layer ◽  
Reactant Concentration ◽  
Metal Organic

Metal organic frameworks have emerged as an important new class of materials with many applications, such as sensing, gas separation, drug delivery. In many cases, their performance is limited by structural defects, including vacancies and domain boundaries. In the case of MOF thin films, surface roughness can also have a pronounced influence on MOF-based device properties. Presently, there is little systematic knowledge about optimal growth conditions with regard to optimal morphologies for specific applications. In this work, we simulate the layer-by-layer (LbL) growth of the HKUST-1 MOF as a function of temperature and reactant concentration using a coarse-grained model that permits detailed insights into the growth mechanism. This model helps to understand the morphological features of HKUST-1 grown under different conditions and can be used to predict and optimize the temperature for the purpose of controlling the crystal quality and yield. It was found that reactant concentration affects the mass deposition rate, while its effect on the crystallinity of the generated HKUST-1 film is less pronounced. In addition, the effect of temperature on the surface roughness of the film can be divided into three regimes. Temperatures in the range from 10 to 129 °C allow better control of surface roughness and film thickness, while film growth in the range of 129 to 182 °C is characterized by a lower mass deposition rate per cycle and rougher surfaces. Finally, for T larger than 182 °C, the film grows slower, but in a smooth fashion. Furthermore, the potential effect of temperature on the crystallinity of LbL-grown HKUST-1 was quantified. To obtain high crystallinity, the operating temperature should preferably not exceed 57 °C, with an optimum around 28 °C, which agrees with experimental observations.

A general route to the synthesis of layer-by-layer structured metal organic framework/graphene oxide hybrid films for high-performance supercapacitor electrodes

2017 ◽  
Vol 5 (32) ◽  
pp. 16865-16872 ◽  
Author(s):  
Dongbo Yu ◽  
Liang Ge ◽  
Xinlai Wei ◽  
Bin Wu ◽  
Jin Ran ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
High Performance ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Hybrid Films ◽  
Promising Strategy ◽  
Metal Organic ◽  
Organic Framework

A promising strategy is demonstrated for the syntheses of metal organic framework/graphene oxide hybrid films with highly ordered layer-by-layer architecture, and the derived hybrids exhibit remarkable energy storage performances.

Metal-organic framework (MOF) composites for photodegradation of hazardous organic materials

2021 ◽  
Vol 02 ◽  
Author(s):  
Xinxin Liu ◽  
Jiaqing Ren ◽  
Jiaqi Fang ◽  
An Pan ◽  
Nianqiao Qin ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Metal Organic Framework ◽  
Stable Process ◽  
Layer Growth ◽  
Thermal Method ◽  
Layer By Layer ◽  
Wide Range ◽  
Metal Organic ◽  
Organic Framework

: Photocatalytic degradation is an energy-efficient, cost-effective, and stable process that has a wide-range of applications. It is considered a promising method for the removal of organic pollutants. As a new type of porous materials, Metal-organic framework (MOF) composites have been proven to be an ideal catalyst for the degradation of organic pollutants due to their small size and large specific surface area. In this review, several common preparation methods of MOF composites are evaluated：microwave synthesis, solvent-thermal method, electrochemical method and layer by layer growth method. The degradation effects of MOF composites on different organic pollutants are summarized, and the excellent photocatalytic performances of some MOF composites are demonstrated. Finally, the prospect of photocatalytic degradation of organic pollutants by MOF composites is examined, and the challenges of further development of MOF composites are discussed.

Layer-by-Layer Assembly of SAM-supported Porphyrin-based Metal Organic Frameworks for Molecular Recognition

2019 ◽  
Vol 81 (4) ◽  
pp. 401-410 ◽  
Author(s):  
A. P. Kutenina ◽  
A. I. Zvyagina ◽  
O. A. Raitman ◽  
Yu. Yu. Enakieva ◽  
M. A. Kalinina
Keyword(s):  
Molecular Recognition ◽  
Metal Organic Frameworks ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Metal Organic ◽  
Layer Assembly

Layer-by-Layer Growth Control of Metal–Organic Framework Thin Films Assembled on Polymer Films

2020 ◽  
Vol 12 (45) ◽  
pp. 50784-50792
Author(s):  
Hiroaki Ohara ◽  
Shunsuke Yamamoto ◽  
Daiki Kuzuhara ◽  
Tomoyuki Koganezawa ◽  
Hidetoshi Oikawa ◽  
...  
Keyword(s):  
Thin Films ◽  
Polymer Films ◽  
Metal Organic Framework ◽  
Growth Control ◽  
Layer Growth ◽  
Layer By Layer ◽  
Metal Organic ◽  
Organic Framework

Enhanced properties of metal–organic framework thin films fabricated via a coordination modulation-controlled layer-by-layer process

2017 ◽  
Vol 5 (26) ◽  
pp. 13665-13673 ◽  
Author(s):  
Suttipong Wannapaiboon ◽  
Kenji Sumida ◽  
Katharina Dilchert ◽  
Min Tu ◽  
Susumu Kitagawa ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Film Properties ◽  
Metal Organic ◽  
Enhanced Properties ◽  
P Addition ◽  
Organic Framework

Addition of a modulator in the LPE process enhances MOF thin film properties by boosting their crystallinity, orientation uniformity, and adsorption capacity.

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