scholarly journals Percolating length scales from topological persistence analysis of micro‐CTimages of porous materials

2016 ◽  
Vol 52 (1) ◽  
pp. 315-329 ◽  
Author(s):  
Vanessa Robins ◽  
Mohammad Saadatfar ◽  
Olaf Delgado‐Friedrichs ◽  
Adrian P. Sheppard
Keyword(s):  
Porous Materials ◽  
Length Scales ◽  
Topological Persistence

scholarly journals The Impact of Microstructure Geometry on the Mass Transport in Artificial Pores: A Numerical Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Matthias Galinsky ◽  
Ulf Sénéchal ◽  
Cornelia Breitkopf
Keyword(s):  
Mass Transport ◽  
Porous Materials ◽  
Effective Diffusion ◽  
Direct Simulation Monte Carlo ◽  
Numerical Approach ◽  
Porous System ◽  
Length Scales ◽  
General Evaluation ◽  
Pulse Experiment ◽  
The Impact

The microstructure of porous materials used in heterogeneous catalysis determines the mass transport inside networks, which may vary over many length scales. The theoretical prediction of mass transport phenomena in porous materials, however, is incomplete and is still not completely understood. Therefore, experimental data for every specific porous system is needed. One possible experimental technique for characterizing the mass transport in such pore networks is pulse experiments. The general evaluation of experimental outcomes of these techniques follows the solution of Fick’s second law where an integral and effective diffusion coefficient is recognized. However, a detailed local understanding of diffusion and sorption processes remains a challenge. As there is lack of proved models covering different length scales, existing classical concepts need to be evaluated with respect to their ability to reflect local geometries on the nanometer level. In this study, DSMC (Direct Simulation Monte Carlo) models were used to investigate the impact of pore microstructures on the diffusion behaviour of gases. It can be understood as a virtual pulse experiment within a single pore or a combination of different pore geometries.

Sol–gel synthesis of monolithic materials with hierarchical porosity

2016 ◽  
Vol 45 (12) ◽  
pp. 3377-3399 ◽  
Author(s):  
A. Feinle ◽  
M. S. Elsaesser ◽  
N. Hüsing
Keyword(s):  
Porous Materials ◽  
Sol Gel ◽  
Length Scales ◽  
Hierarchical Porosity ◽  
High Interest ◽  
Wide Range ◽  
Synthetic Routes ◽  
Sol Gel Synthesis

The development of synthetic routes to porous materials containing multiple, discrete sets of pores having disparate length scales is of high interest for a wide range of applications.

scholarly journals Multi-scaling and mesoscopic structures

2010 ◽  
Vol 368 (1914) ◽  
pp. 1163-1174 ◽  
Author(s):  
E. K. H. Salje
Keyword(s):  
Porous Materials ◽  
Domain Boundary ◽  
Life Sciences ◽  
Systematic Investigation ◽  
Light Metals ◽  
Length Scales ◽  
Fine Grained ◽  
Artificial Bones ◽  
Fruitful Cooperation

Multi-scaling and the systematic investigation of mesoscopic structures represent a field of fruitful cooperation in physics, chemistry, mineralogy and life sciences. The increasing miniaturization of devices as well as the emphasis of recent research on microstructures with length scales of a few nanometres lead to paradigm changes that may impact not only on our scientific understanding of fine-grained structures but also on the way we will develop device materials in the future. Here the role of interfaces becomes more important, and developments in areas such as ‘domain boundary engineering’ are evidence of this scientific evolution. In addition, nano-porous materials are particularly important in geology and in the development of artificial bones and ultra-light metals. Some of these developments are reviewed in this paper.

scholarly journals Directional asymmetry over multiple length scales in reticular porous materials

2021 ◽  
Vol 12 (1) ◽  
pp. 18-33
Author(s):  
Alexandre Legrand ◽  
Zaoming Wang ◽  
Javier Troyano ◽  
Shuhei Furukawa
Keyword(s):  
Porous Materials ◽  
Directional Asymmetry ◽  
Design Strategies ◽  
Length Scales ◽  
Controlled Assembly ◽  
Multiple Length Scales

Design strategies for the controlled assembly of discrete and extended reticular materials with asymmetric configurations of pores or architectures.

Porous materials from cellulose nanocrystal and mxene surfactants at the oil/water interface

2020 ◽  
Author(s):  
Bingqing qian ◽  
Haiqiao Wang ◽  
Dong Wang ◽  
Hao-Bin Zhang ◽  
Jessica Wu ◽  
...  
Keyword(s):  
Porous Materials ◽  
Cellulose Nanocrystal ◽  
Water Interface ◽  
Oil Water

Effect of structure of porous materials on their self-cleaning from a liquid pha

2018 ◽  
Vol 4 (4) ◽  
pp. 52-63
Author(s):  
V. Yu. Shumskaya ◽  
S. F. Zhandarov ◽  
L. A. Kalinin ◽  
L. F. Ivanov ◽  
V. V. Snezhkov ◽  
...  
Keyword(s):  
Porous Materials ◽  
Self Cleaning ◽  
Effect Of Structure

INVERSE ANALYSIS TO OBTAIN THE PRESSURE-DEPENDENT PERMEABILITY OF MICRO/NANO POROUS MATERIALS

2020 ◽  
Vol 51 (16) ◽  
pp. 1445-1454
Author(s):  
Lei-Lei Liu ◽  
Feng-Xian Sun ◽  
Xin-Lin Xia
Keyword(s):  
Porous Materials ◽  
Inverse Analysis
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