High-throughput fabrication of zeolite thin films via ultrasonic nozzle spray deposition

Lam, Chon Hei; Hsu, Wan-Ju; Chi, Heng‐Yu; Kang, Yu-Hao; Chen, Jiun-Jen; Kang, Dun‐Yen

doi:10.1016/j.micromeso.2018.02.031

Cited by 11 publications

(23 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The processing of zeolite thin film and membranes will reveal novel opportunities for their advanced applications. Experimental studies on the deposition of pure zeolite thin films with controllable phase composition have been performed by spin casting or nozzle spray of colloidal suspensions [28,29], in situ crystallization [30], and dry gel conversion [31]. Zeolite membranes are distinguished by unique adsorption and separation properties combined with high selectivity due to their ordered micro-porosity in the structural framework [32].…”

Section: Introductionmentioning

confidence: 99%

Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications

et al. 2020

View full text Add to dashboard Cite

Fly ash (FA) from lignite coal combusted in different Thermal Power Plants (TPPs) was used for the synthesis of zeolites (FAZs) of the Na-X type by alkaline activation via three laboratory procedures. FAZs were characterized with respect to their morphology, phase composition and surface properties, which predetermine their suitability for applications as catalysts and adsorbents. FAZs were subsequently modified with metal oxides (CuO) to improve their catalytic properties. The catalytic activity of non-modified and CuO-modified FAZs in the total oxidation of volatile organic compounds was investigated. FAZs were studied for their potential to retain CO2, as their favorable surface characteristics and the presence of iron oxides make them suitable for carbon capture technologies. Thin films of FAZs were deposited by in situ crystallization, and investigated for their morphology and optical sensitivity when exposed to pollutants in the gas phase, e.g., acetone. This study contributes to the development of novel technological solutions for the smart and valuable utilization of FA in the context of the circular economy and green energy production.

show abstract

Section: Introductionmentioning

confidence: 99%

Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…22,23 The second class requires a zeolite suspension with fully grown crystals, which involves dip coating, 24,25 spin-on deposition, 26−29 or spray deposition. 14,30 The second class avoids the need to expose the substrate to a high-pH environment during zeolite crystal growth, thereby making it possible to deposit zeolites on silicon wafers, 29,31,32 glass substrates, 33,34 and aluminum alloy. 35,36…”

Section: Introductionmentioning

confidence: 99%

“…47,48 Only a few reports have addressed the use of UNSD in the preparation of zeolite films. 14 Several factors can affect the quality of zeolite films prepared using UNSD, including the operating conditions for spraying, the composition of the cast solution, and the wetting behavior of the solution on the substrate. Our group has optimized the quality of zeolite films by varying the operating conditions and composition of the cast solutions.…”

Section: Introductionmentioning

confidence: 99%

Wetting Properties and Thin-Film Quality in the Wet Deposition of Zeolites

et al. 2019

Self Cite

View full text Add to dashboard Cite

Zeolites are microporous crystalline materials widely used in catalysis and adsorption applications. The fabrication of zeolite thin films and membranes has also opened up the possibility of using zeolites in electronic devices and membrane separations. The existing approach to growing zeolite films involves exposing the substrate to a high-pH environment; however, this process is applicable to only specific types of substrates. Our group has developed the direct wet deposition of zeolites via ultrasonic nozzle spray deposition to address this issue; however, the relationship between wetting properties and thin-film quality has yet to be investigated. In this study, we prepared zeolite CHA (Si:Al:P = 3:10:20) suspensions using different solvents and surfactants in various concentrations. We then examined the relationships among the composition of the cast solution, their wetting behavior on the glass substrate, and the uniformity of the resulting thin films. We found that using ethanol as a solvent with zeolite crystals in low concentrations with added surfactant yielded zeolite films of high quality. We were also able to produce low-haze zeolite coatings on glass. The zeolite coatings with high hydrophilicity and adsorption capacity presented excellent antifogging capability.

show abstract

“…Later ML models have been successfully employed for novel predictions that have been experimentally verified where further details can be seen in Section 3.4. Whilst other alternative high throughput production methods were developed, [73][74][75] the majority of new innovations are limited to HT structural characterization and activity or HT post-synthetic treatments. [44,[76][77][78][79][80][81][82][83] Notably, there is a lack of development of "full" HT library generation workflows, with current state-of-the-art systems only automating a few portions of the synthesis process or lack robotization in important areas, such as zeolite synthesis or postsynthetic treatment.…”

Section: Implementation Of Robotics and Automationmentioning

confidence: 99%

“…However, there are now much larger databases available featuring structures not yet realized synthetically. A novel use of GA approaches to COFs was reported by Lam et al, [ 75 ] who developed a database of 471 990 COFs [ 390 ] constructed through an elegant computational algorithm. SBUs are treated as genetic structural units and reacted together according to consideration of their functional groups in a manner reminiscent of Wilmer et al, [ 314 ] with the distinction that 2D materials were explicitly targeted in this work as well as 3D materials.…”

Section: Covalent Organic Frameworkmentioning

confidence: 99%

High Throughput Methods in the Synthesis, Characterization, and Optimization of Porous Materials

et al. 2020

View full text Add to dashboard Cite

Notwithstanding these impediments, in many fields of materials science, solutions are being designed to mitigate hindrances to the efficient sampling of chemical space and improving the robustness of computational screening models through a combination of high throughput synthesis (HTS), characterization, and machine learning. In this review, we highlight key developments in high throughput approaches pertinent to porous materials. Specifically, we focus on developments in the field of zeolitic materials, metal-organic frameworks (MOFs), and touch upon covalent organic frameworks (COFs). Although superficially these classes of materials have little in common, there are structural links such as topology which allow for the consideration of how high throughput methods contrast with one another. By contrasting developments in different fields, we identify some underutilized approaches which could be leveraged in the future. We target structurally ordered materials because the exploration of chemical and topological space is more straightforward to enumerate, though similar approaches could be applied to disordered materials. The scale of the problem faced in materials science of targeted structure and function [1] is by no means unique; in drug discovery, HTS and chemoinformatic approaches have been used for more than 40 years in an attempt to accelerate the discovery of druggable molecules. [2,3] Unlike the drug discovery process, where Lipinski's "rule of 5" [4] provides a reliable top level sift for viable targets, identifying the most promising material for a target application requires very particular properties that may be intertwined in complex and contradictory ways. For example, thermoelectrics require high electrical conductivity and low thermal conductivity and yet these properties are typically correlated unless they can be separated. [5] Given the large scope of potential applications, the advent of the Materials Genome Initiative (MGI) [6,7] in the United States has undoubtedly helped to promote ways to solve the aforementioned obstacles and numerous others. Similarly there are major initiatives within the EU (e.g., NOMAD [8] and BIGmax [9]) and Switzerland (MARVEL [10]). In the MGI, nanoporous materials, including zeolites and MOFs, have been specifically targeted [11] and in this review, we seek to highlight particular challenges in the field of porous materials and how researchers have sought to overcome these challenges. We focus primarily on the methods used in HTS and rapid throughput/screening computational approaches. Aspects of high throughput computation applied to porous materials have been reviewed before, [12-14] as has high throughput experimentation (HTE) [15,16] but here we focus on their combination within an integrated workflow. Porous materials are widely employed in a large range of applications, in particular, for storage, separation, and catalysis of fine chemicals. Synthesis, characterization, and pre-and post-synthetic computer simulations are mostly carried out in a piecemeal a...

show abstract

High-throughput fabrication of zeolite thin films via ultrasonic nozzle spray deposition

Cited by 11 publications

References 80 publications

Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications

Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications

Wetting Properties and Thin-Film Quality in the Wet Deposition of Zeolites

High Throughput Methods in the Synthesis, Characterization, and Optimization of Porous Materials

Contact Info

Product

Resources

About