Sandwich “Ion Pool”-Structured Power Gating for Salinity Gradient Generation Devices

Fu, Lulu; Wang, Yuting; Jiang, Jiaqiao; Lu, Bingxin; Zhai, Jin

doi:10.1021/acsami.1c10183

Cited by 13 publications

(8 citation statements)

References 43 publications

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“…The ICR behavior of the J-MOF membrane was further investigated theoretically using the finite element method (FEM) simulation. For computational convenience, a simplified model was established (Figures g and S11; see Supporting Note 2 for more details). − The calculated ion concentration inside the membrane under a positive bias voltage (+1 V) is much larger than that under a negative bias voltage (−1 V) (Figure h), which is consistent with the observed I – V curve.…”

Section: Resultssupporting

confidence: 71%

Janus Metal–Organic Framework Membranes Boosting the Osmotic Energy Harvesting

Zhu

et al. 2023

ACS Appl. Mater. Interfaces

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The unique ion-transport properties in nanoconfined pores enable nanofluidic devices with great potential in harvesting osmotic energy. The energy conversion performance could be significantly improved by the precise regulation of the “permeability–selectivity” trade-off and the ion concentration polarization effect. Here, we take the advantage of electrodeposition technique to fabricate a Janus metal–organic framework (J-MOF) membrane that possesses rapid ion-transport capability and impeccable ion selectivity. The asymmetric structure and asymmetric surface charge distribution of the J-MOF device can suppress the ion concentration polarization effect and enhance the ion charge separation, exhibiting an improved energy harvesting performance. An output power density of 3.44 W/m2 has been achieved with the J-MOF membrane at a 1000-fold concentration gradient. This work provides a new strategy for fabricating high-performance energy-harvesting devices.

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Section: Resultssupporting

confidence: 71%

Janus Metal–Organic Framework Membranes Boosting the Osmotic Energy Harvesting

Zhu

et al. 2023

ACS Appl. Mater. Interfaces

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“…Changes in pH can affect the surface charge density of ion pool nanochannel. This pH-responsive ion pool structured membrane can be used in energy harvesting applications [177]. Carbon black nanoparticles sprayed onto the AAO membrane fabricated on the silicon substrate to form metal free absorber are illustrated in Fig.…”

Section: Applications Of Aao Membrane In Miscellaneous Fieldsmentioning

confidence: 99%

“…provides applications of AAO in miscellaneous fields[57,61,65,66,94,171,[176][177][178][179][180][181][182][183][184][185][186][187][188][189].…”

mentioning

confidence: 99%

Recent Progress of Fabrication, Characterization, and Applications of Anodic Aluminum Oxide (AAO) Membrane: A Review

Manzoor¹,

Ashraf²,

Tayyaba³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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The progress of membrane technology with the development of membranes with controlled parameters led to porous membranes. These membranes can be formed using different methods and have numerous applications in science and technology. Anodization of aluminum in this aspect is an electro-synthetic process that changes the surface of the metal through oxidation to deliver an anodic oxide layer. This process results in a self-coordinated, exceptional cluster of round and hollow formed pores with controllable pore widths, periodicity, and thickness. Categorization in barrier type and porous type films, and different methods for the preparation of membranes, have been discussed. After the initial introduction, the paper proceeds with a brief overview of anodizing process. That engages anodic aluminum oxide (AAO) layers to be used as formats in various nanotechnology applications without the necessity for expensive lithographical systems. This review article surveys the current status of the investigation on AAO membranes. A comprehensive analysis is performed on AAO membranes in applications; filtration, sensors, drug delivery, template-assisted growth of various nanostructures. Their multiple usages in nanotechnology have also been discussed to gather nanomaterials and devices or unite them into specific applications, such as nano-electronic gadgets, channel layers, and clinical platforms tissue designing. From this review, the fact that the specified enhancement of properties of AAO can be done by varying geometric parameters of AAO has been highlighted. No review paper focused on a detailed discussion of multiple applications of AAO with prospects and challenges. Also, it is a challenge for the research community to compare results reported in the literature. This paper provides tables for easy comparison of reported applications with membrane parameters. This review paper represents the formation, properties, applications with objective consideration of the prospects and challenges of AAO applications. The prospects may appeal to researchers to promote the development of unique membranes with functionalization and controlled geometric parameters and check the feasibility of the AAO membranes in nanotechnology and devices.

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“…However, it is noteworthy that this power density was obtained when the pH of the ZIF-8 side was adjusted to 3 and the pH of the WO 3 side was adjusted to 11. The ZIF-8 layer is positively charged, while the WO 3 layer is negatively charged at pH 11 [ 100 ].…”

Section: Emerging Porous Membranesmentioning

confidence: 99%

Membranes for Osmotic Power Generation by Reverse Electrodialysis

Rahman

2023

Membranes

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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.

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Sandwich “Ion Pool”-Structured Power Gating for Salinity Gradient Generation Devices

Cited by 13 publications

References 43 publications

Janus Metal–Organic Framework Membranes Boosting the Osmotic Energy Harvesting

Janus Metal–Organic Framework Membranes Boosting the Osmotic Energy Harvesting

Recent Progress of Fabrication, Characterization, and Applications of Anodic Aluminum Oxide (AAO) Membrane: A Review

Membranes for Osmotic Power Generation by Reverse Electrodialysis

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