Thermally responsive ionic transport system reinforced by aligned functional carbon nanotubes backbone

Yu, Lejian; Wang, Miao; Li, Xipeng; Hou, Xu

doi:10.1016/j.cclet.2022.107785

Cited by 13 publications

(6 citation statements)

References 26 publications

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“…Biological cell membranes can recognize and transport ions in a highly effective and selective fashion through ion channels. − Ion channels are narrow tunnel-like membrane proteins with surface charge, which can selectively recognize and transport the specific ion through ion receptors (Scheme ). Inspired by ion channels in biology systems, we assumed to fabricate a bionic nanochannel whose surface is decorated with ion pair receptors of lithium to realize the highly selective recognition and transport of specific Li + .…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Transport and Enrichment of Lithium Ions through Bionic Ion Pair Receptor Nanochannels

Wang

Luan

et al. 2023

ACS Appl. Mater. Interfaces

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Inspired by ion pair cotransport channels in biological systems, a bionic nanochannel modified with lithium ion pair receptors is constructed for selective transport and enrichment of lithium ions (Li+). NH2-pillar[5]arene (NP5) is chosen as ion pair receptors, and the theoretical simulation and NMR titration experiments illustrate that NP5 has good affinity for the ion pair of LiCl through a strong host–guest interaction at the molecular level. Due to the confinement effect and ion pair cooperation recognition, an NP5-based receptor was introduced into an artificial PET nanochannel. An I–V test indicated that the NP5 channel realized the highly selective recognition for Li+. Meanwhile, transmembrane transport and COMSOL simulation experiments proved that the NP5 channel achieved the transport and enrichment of Li+ through the cooperative interaction between NP5 and LiCl. Moreover, the receptor solution of transmembrane transport LiCl in the NP5 channel was used to cultivate wheat seedlings, which obviously promoted their growth. This nanochannel based on the ion pair recognition will be much useful for practical applications like metal ion extraction, enrichment, and recycle.

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Section: Introductionmentioning

confidence: 99%

Highly Selective Transport and Enrichment of Lithium Ions through Bionic Ion Pair Receptor Nanochannels

Wang

Luan

et al. 2023

ACS Appl. Mater. Interfaces

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“…[6][7][8] Reverse electrodialysis (RED) is considered to have a great potential for harvesting osmotic energy due to its straightforward process of generating electricity from the salinity gradient through an ion-selective membrane. [9][10][11][12][13][14] However, conventional ion-exchange membranes used in the RED process, such as Nafion and microphase-separated membranes, suffer from limitations such as low ion selectivity, insufficient mass transfer, and high membrane resistance, resulting in low power output. [15][16][17][18] In an effort to improve the performance of osmotic energy harvesting, researchers have developed 2D nanofluidic channels utilizing materials such as graphene oxide, [19][20][21][22] molybdenum disulfide (MoS 2 ), [23] MXene, [24][25][26][27][28] boron nitride, [29][30][31] and black phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Self‐Assembled Nanoporous Metal–Organic Framework Monolayer Film for Osmotic Energy Harvesting

Xiao,

Cong,

et al. 2023

Adv Funct Materials

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Osmotic energy represents a promising energy resource because it is sustainable and environmentally benign. Subnanoscale channels are considered as a competitive platform for generating this blue energy due to their highly selective and ultrafast ion transport. However, fabricating functional subnanochannels capable of high energy output remains challenging. Here, a heterogeneous subnanochannel membrane formed by coating a functionalized self‐assembled metal−organic framework (MOF) monolayer (SAMM) film on a porous anodic aluminum oxide membrane, is reported. The SAMM film, with a thickness of ≈160 nm, is fabricated by self‐assembly of poly(methyl methacrylate‐co‐vinylimidazole)‐modified UiO‐66‐NH2 nanoparticles at the water−air interface. In the SAMM, imidazole and NH2 groups provide abundant positive charges, while the angstrom‐scale windows act as ionic filters for selective screening of anions with different hydration diameters. As a result, the heterogeneous membrane exhibits excellent capacity for anion‐selective transport, which contributes to an optimal osmotic power of 6.76 W m−2 under a 100‐fold NaCl gradient, as well as a high Cl−/SO42− selectivity of ≈42.2. Further, the output power is increased to 10.5 W m−2 by methylating imidazole moieties on the MOF surface. This work provides a facile and modular approach to fabricate subnanochannels for enabling highly selective and efficient osmotic energy conversion.

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“…Carbon nanotubes (CNTs) have been widely employed as an ion channel material in the development of ionic IC due to their atomic inner diameters and ultralong channel length, which enable bipolarity modification. [32][33][34] Since the ionic diode requires nanoscale channel size to meet the demand of the formation of overlapped EDL, the output ionic current is generally very low, limiting practical uses of these ionic devices. CNTs could potentially improve the ionic current performance by increasing the total number of CNTs when serving as ionic diodes because they are often constructed in terms of bundles.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Integrated Iontronic Circuits Based on Single Nano/Microchannels

Zhang

et al. 2023

Small

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Recently, artificial channel‐based ionic diodes and transistors are extensively studied to mimic biological systems. Most of them are constructed vertically and are challenging to be further integrated. Several examples of ionic circuits with horizontal ionic diodes are reported. However, they generally require nanoscale channel sizes to meet the demand for ion‐selectivity, resulting in low current output and restricting potential applications. In this paper, a novel ionic diode is developed based on multiple‐layer polyelectrolyte nanochannel network membranes. Both bipolar and unipolar ionic diodes can be achieved by simply switching the modification solution. Ionic diodes with a high rectification ratio of ≈226 are achieved in single channels with the largest channel size of 2.5 µm. This design can significantly reduce the channel size requirement and improve the output current level of ionic devices. The high‐performance ionic diode with a horizontal structure enables the integration of advanced iontronic circuits. Ionic transistors, logic gates, and rectifiers are fabricated on a single chip and demonstrated for current rectification. Furthermore, the excellent current rectification ratio and the high output current of the on‐chip ionic devices highlight the promise of the ionic diode as a component of complex iontronic systems for practical applications.

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Thermally responsive ionic transport system reinforced by aligned functional carbon nanotubes backbone

Cited by 13 publications

References 26 publications

Highly Selective Transport and Enrichment of Lithium Ions through Bionic Ion Pair Receptor Nanochannels

Highly Selective Transport and Enrichment of Lithium Ions through Bionic Ion Pair Receptor Nanochannels

Self‐Assembled Nanoporous Metal–Organic Framework Monolayer Film for Osmotic Energy Harvesting

High‐Performance Integrated Iontronic Circuits Based on Single Nano/Microchannels

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