Diffusion through single porous particles studied in a microfluidic system

Luca Carnevale; Rafael M. Gonzalez; Florian Meirer; Wouter Olthuis; Bert M. Weckhuysen; Albert van den Berg

Diffusion through single porous particles studied in a microfluidic system

Luca Carnevale^*, Rafael M. Gonzalez, Florian Meirer, Wouter Olthuis, Bert M. Weckhuysen, Albert van den Berg

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

The understanding of diffusion through porous materials is a crucial aspect for designing superior catalysts. Their performance is often influenced by inter-particle inhomogeneities, which are barely attainable with bulk analytical methods. To overcome this problem, a microfluidic system has been designed and fabricated to perform a mass transfer study at a single-particle level using fluorescence microscopy. This was done by trapping a porous particle and applying a concentration gradient over it. The system allows us to obtain the true value of the diffusion coefficient of a single particle, which is not averaged over many particles and influenced by inter-particle porosity. The diffusion was studied for a Fluid Catalytic Cracking (FCC) and a porous SiO₂ particle, the latter well-known material used as a commercial support material.

Original language	English
Title of host publication	MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Publisher	The Chemical and Biological Microsystems Society
Pages	1223-1224
Number of pages	2
ISBN (Electronic)	9781733419031
Publication status	Published - 2021
Event	25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2021 - Palm Springs, United States Duration: 10 Oct 2021 → 14 Oct 2021 Conference number: 25 https://microtas2021.org/

Conference

Conference	25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2021
Abbreviated title	MicroTAS 2021
Country/Territory	United States
City	Palm Springs
Period	10/10/21 → 14/10/21
Internet address	https://microtas2021.org/

Keywords

closed valve
Effective diffusion
epoxy resin
FCC catalyst
Single-particle
SiO particle

Cite this

@inproceedings{90403e75157b4aa78485be34e2711aa0,

title = "Diffusion through single porous particles studied in a microfluidic system",

abstract = "The understanding of diffusion through porous materials is a crucial aspect for designing superior catalysts. Their performance is often influenced by inter-particle inhomogeneities, which are barely attainable with bulk analytical methods. To overcome this problem, a microfluidic system has been designed and fabricated to perform a mass transfer study at a single-particle level using fluorescence microscopy. This was done by trapping a porous particle and applying a concentration gradient over it. The system allows us to obtain the true value of the diffusion coefficient of a single particle, which is not averaged over many particles and influenced by inter-particle porosity. The diffusion was studied for a Fluid Catalytic Cracking (FCC) and a porous SiO2 particle, the latter well-known material used as a commercial support material.",

keywords = "closed valve, Effective diffusion, epoxy resin, FCC catalyst, Single-particle, SiO particle",

author = "Luca Carnevale and Gonzalez, {Rafael M.} and Florian Meirer and Wouter Olthuis and Weckhuysen, {Bert M.} and {van den Berg}, Albert",

note = "Funding Information: This work was supported by the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation program funded by the Ministry of Education, Culture, and Science of the government of the Netherlands. This project has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie grant agreement No 801359. Publisher Copyright: {\textcopyright} 2021 MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. All rights reserved.; 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2021, MicroTAS 2021 ; Conference date: 10-10-2021 Through 14-10-2021",

year = "2021",

language = "English",

pages = "1223--1224",

booktitle = "MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences",

publisher = "The Chemical and Biological Microsystems Society",

url = "https://microtas2021.org/",

}

Carnevale, L, Gonzalez, RM, Meirer, F, Olthuis, W, Weckhuysen, BM & van den Berg, A 2021, Diffusion through single porous particles studied in a microfluidic system. in MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. The Chemical and Biological Microsystems Society, pp. 1223-1224, 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2021, Palm Springs, California, United States, 10/10/21.

Diffusion through single porous particles studied in a microfluidic system. / Carnevale, Luca; Gonzalez, Rafael M.; Meirer, Florian et al.
MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. The Chemical and Biological Microsystems Society, 2021. p. 1223-1224.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Diffusion through single porous particles studied in a microfluidic system

AU - Carnevale, Luca

AU - Gonzalez, Rafael M.

AU - Meirer, Florian

AU - Olthuis, Wouter

AU - Weckhuysen, Bert M.

AU - van den Berg, Albert

N1 - Conference code: 25

PY - 2021

Y1 - 2021

N2 - The understanding of diffusion through porous materials is a crucial aspect for designing superior catalysts. Their performance is often influenced by inter-particle inhomogeneities, which are barely attainable with bulk analytical methods. To overcome this problem, a microfluidic system has been designed and fabricated to perform a mass transfer study at a single-particle level using fluorescence microscopy. This was done by trapping a porous particle and applying a concentration gradient over it. The system allows us to obtain the true value of the diffusion coefficient of a single particle, which is not averaged over many particles and influenced by inter-particle porosity. The diffusion was studied for a Fluid Catalytic Cracking (FCC) and a porous SiO2 particle, the latter well-known material used as a commercial support material.

AB - The understanding of diffusion through porous materials is a crucial aspect for designing superior catalysts. Their performance is often influenced by inter-particle inhomogeneities, which are barely attainable with bulk analytical methods. To overcome this problem, a microfluidic system has been designed and fabricated to perform a mass transfer study at a single-particle level using fluorescence microscopy. This was done by trapping a porous particle and applying a concentration gradient over it. The system allows us to obtain the true value of the diffusion coefficient of a single particle, which is not averaged over many particles and influenced by inter-particle porosity. The diffusion was studied for a Fluid Catalytic Cracking (FCC) and a porous SiO2 particle, the latter well-known material used as a commercial support material.

KW - closed valve

KW - Effective diffusion

KW - epoxy resin

KW - FCC catalyst

KW - Single-particle

KW - SiO particle

UR - http://www.scopus.com/inward/record.url?scp=85136983173&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85136983173

SP - 1223

EP - 1224

BT - MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences

PB - The Chemical and Biological Microsystems Society

T2 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2021

Y2 - 10 October 2021 through 14 October 2021

ER -

Diffusion through single porous particles studied in a microfluidic system

Abstract

Conference

Keywords

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