Ultra-thin ion exchange film on the ceramic supporter for output power improvement of reverse electrodialysis

Jung, Dong Hyeon; Han, Eui Don; Kim, Byeong Hee; Seo, Young Ho

doi:10.1038/s41598-019-54002-7

Cited by 9 publications

(2 citation statements)

References 28 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This casting solution is also used to prepare double-layer membranes. A crosslinked selective layer that is 5–8 µm in thickness is obtained by the spin coating of the casting solution on top of an anodized alumina oxide support [ 42 ]. The reaction between DABCO and the chlorine moieties of polyepicholorohydrin introduces charged moieties at the crosslinked junctions [ 39 , 43 , 44 ].…”

Section: Conventional Nonporous Membranesmentioning

confidence: 99%

Membranes for Osmotic Power Generation by Reverse Electrodialysis

Rahman

2023

Membranes

View full text Add to dashboard Cite

In recent years, the utilization of the selective ion transport through porous membranes for osmotic power generation (blue energy) has received a lot of attention. The principal of power generation using the porous membranes is same as that of conventional reverse electrodialysis (RED), but nonporous ion exchange membranes are conventionally used for RED. The ion transport mechanisms through the porous and nonporous membranes are considerably different. Unlike the conventional nonporous membranes, the ion transport through the porous membranes is largely dictated by the principles of nanofluidics. This owes to the fact that the osmotic power generation via selective ion transport through porous membranes is often referred to as nanofluidic reverse electrodialysis (NRED) or nanopore-based power generation (NPG). While RED using nonporous membranes has already been implemented on a pilot-plant scale, the progress of NRED/NPG has so far been limited in the development of small-scale, novel, porous membrane materials. The aim of this review is to provide an overview of the membrane design concepts of nanofluidic porous membranes for NPG/NRED. A brief description of material design concepts of conventional nonporous membranes for RED is provided as well.

show abstract

Section: Conventional Nonporous Membranesmentioning

confidence: 99%

Membranes for Osmotic Power Generation by Reverse Electrodialysis

Rahman

2023

Membranes

View full text Add to dashboard Cite

show abstract

“…Villafaña-López et al [ 32 ] performed similar work on PECH-based AEM for RED, and the membranes were modified by glutaraldehyde and polyethyleneimine to improve membrane properties such as anionic selectivity and surface homogeneity. In another work, ultrathin PECH-based membranes were prepared specifically for RED by Jung et al [ 33 ] by the use of spincoating on nanoporous alumina. Very recently, Reyes-Aguilera et al used the electrospinning technique to prepare PECH membranes where the membrane morphology was varied with different electrospinning parameters [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Physicochemical Properties of Two Types of Polyepichlorohydrin-Based Anion Exchange Membranes for Reverse Electrodialysis

Karakoç

Güler

2022

Membranes

View full text Add to dashboard Cite

The development of the most effective, suitable and economic ion-exchange membranes is crucial for reverse electrodialysis (RED)—the most widely studied process to harvest salinity gradient energy from mixing seawater and river water. RED utilizes two types of membranes as core elements, namely cation exchange membranes (CEM) and anion exchange membranes (AEM). Since the preparation of AEMs is more complex compared to CEMs, the design and development of anion exchange membranes have been the focus in this study. Homogeneous AEMs based on two types of polyepichlorohydrin (PECH) with different chlorine amounts (PECH-H, 37 wt% and PECH-C, 25 wt%) were synthesized, and first-time benchmarking of the membrane properties was conducted. In addition to physicochemical membrane properties, some instrumental analyses such as SEM, FTIR and DSC were investigated to characterize these anion-exchange membranes. Based on the results, although the PECH-H-type membrane had enhanced ion-exchange properties, PECH-C-based anion-exchange membranes exhibited a higher power density of 0.316 W/m2 in a lab-scale RED system. Evidently, there is room for the development of new types of PECH-C-based AEMs with great potential for energy generation in the RED process.

show abstract