Ultrathin graphene oxide-based hollow fiber membranes with brush-like CO2-philic agent for highly efficient CO2 capture

Zhou, Fanglei; Tien, Huynh Ngoc; Xu, Weiwei; Chen, Jung-Tsai; Liu, Qiuli; Hicks, Ethan; Fathizadeh, Mahdi; Li, Shiguang; Yu, Miao

doi:10.1038/s41467-017-02318-1

Cited by 166 publications

(86 citation statements)

References 43 publications

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“…The pioneering work on unimpeded water transport through graphene-based membrane [11] has elicited a bunch of interesting experiments [12][13][14] and simulations [15][16][17] to study the fast-selective mass transfer through GO-based laminates. From nano-sized particles (e.g., carbon dots [18]), small molecules (e.g., piperazine [19], surfactant [20,21]) to polymer chains (e.g., polyvinyl alcohol [22]), different chemical species are manipulated to modulate nanostructures and properties of GO-based membranes. With the methodology to functionalize GObased materials, several kinds of membranes for separating specific mixtures [23][24][25][26][27][28][29][30] have been developed.…”

Section: Introductionmentioning

confidence: 99%

Cation-diffusion controlled formation of thin graphene oxide composite membranes for efficient ethanol dehydration

et al. 2019

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Structural manipulation of graphene oxide (GO) building blocks has been widely researched. Concerning GO membranes for separation applications, the validity and maintenance of their microscopic structures in the chemical environment are pivotal for effective separation at the molecular scale. Cationic interactions with both aromatic rings and oxygenated functional groups of GO make metal ions intriguing for physically and chemically structural reinforcement. By filtrating GO suspension through the substrate loaded with cations, stacking of GO nanosheets and diffusion of cations steadily evolve simultaneously in an aqueous environment without flocculation. Thus, thin and homogeneous GO membrane is obtained. Divalent and monovalent cations were studied regarding their interactions with GO, and the performance of correspondingly functionalized membranes was evaluated. The divalent cation-stabilized membranes have favorable stability in the separation of water/ethanol. This facile fabrication and functionalization method may also be applicable for structure construction of other two-dimensional materials.

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Section: Introductionmentioning

confidence: 99%

Cation-diffusion controlled formation of thin graphene oxide composite membranes for efficient ethanol dehydration

et al. 2019

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“…25 Facilitated-transport membranes offer attractive permeance and selectivity, however, their application is hindered by the stability issues as well as the need for water scavenging from the permeate stream (Supplementary note I, ESI †). [26][27][28][29][30][31] Stacked graphene oxide (GO) nanosheet based membranes have demonstrated high CO 2 /N 2 selectivities, however, the CO 2 permeance has remained limited to ca. 500 GPU, attributed to the tortuous, several micrometers long diffusion path of CO 2 .…”

mentioning

confidence: 99%

High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target

Huang

Villalobos

et al. 2019

Energy Environ. Sci.

122

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“…Accordingly, a thin layer of well‐orientated GO laminates was developed by dip coating, and it significantly improved the CO 2 permeance (up to 90%) without losing the selectivity. Another ultrathin hollow GBF membrane for CO 2 capture was demonstrated by Yu and co‐workers In their design, piperazine, an effective amine promoter for CO 2 capture, was first mixed with GO and the mixture (denoted as GOP) was then injected into a hollow fiber supporter. After a two‐step seeding and vacuum‐assisted coating process, a thin layer of GOP with brush‐like CO 2 ‐philic agent was uniformly coated onto the supporter.…”

Section: Advance In Preparation Of Gbfsmentioning

confidence: 99%

Section: Advance In Preparation Of Gbfsmentioning

confidence: 99%

Graphene‐Based Fibers: Recent Advances in Preparation and Application

Zhang

2019

Advanced Materials

110

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investigated [17][18][19][20] for building graphene-based fibers (GBFs) over recent years. [21][22][23] These unique macroscopic 1D assemblies of microscopic 2D graphene building blocks are of lightweight, high specific surface area (SSA), and remarkable mechanical and electrical properties, thus qualifying them as ideal materials for fiber electronics. [14,[24][25][26] Currently, the well-developed wet-spinning method is widely adopted in preparing GBFs, [27,28] while newly designed spinning methods with microfluidic spinnerets and different kinds of coagulation bath have yielded GBFs with novel structures and functions. Apart from these methods, emerging techniques such as chemical vapor deposition (CVD) and twisting have been developed to meet different applications of GBFs in strain sensors, stretchable SC, and multifunctional actuators. [9,29,30] Together with the evolution in their preparation, mechanical and electrical properties of GBFs have been considerably enhanced since their debut. Bioinspired strengthening and toughening strategies for membranes have been found to work for GBFs as well, and atomic doping methods have efficiently increased electrical conductivity of GBFs to a record value of 2.2 × 10 7 S m −1 , [31] which is even comparable to that of certain metals such as nickel (1.5 × 10 7 S m −1 ) and aluminum (3.5 × 10 7 S m −1 ). Based on their novel structures and significantly enhanced mechanical/electrical properties, GBFs have found their substantial uses particularly in newly designed, high-performance electrochemical devices for energy conversion and storage.Several excellent reviews have witnessed the rapid development of GBFs. [17,20,23] For example, Chou and co-workers [18] previously gave a comprehensive review on the synthesis, device performance, and potential applications of GBFs. Another review presented by Gao and his colleagues [32] focused on the microscopic mechanism during liquid crystal formation and summarized its effects on producing continuous fibers. Additionally, applications of GBFs in flexible/ wearable SCs and bioinspired nanocomposites were specifically discussed by Huang et al. [25] and Cheng and co-workers, [33] respectively. In this featured article, we mainly focus on very recent research advances in GBFs over the past few years and introduce progresses in preparation techniques, strategies for performance enhancement and novel applications (Figure 1), aiming to provide a state-of-the-art update for GBFs as well as perspectives for their future development.Graphene-based fibers (GBFs) are macroscopic 1D assemblies formed by using microscopic 2D graphene sheets as building blocks. Their unique structure exhibits the same merits as graphene such as low weight, high specific surface area, excellent mechanical/electrical properties, and ease of functionalization. Furthermore, the fibrous nature of GBFs is intrinsically compatible with existing textile technologies, making them suitable for applications in flexible and wearable electronics. Recently, novel synthetic ...

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Ultrathin graphene oxide-based hollow fiber membranes with brush-like CO2-philic agent for highly efficient CO2 capture

Cited by 166 publications

References 43 publications

Cation-diffusion controlled formation of thin graphene oxide composite membranes for efficient ethanol dehydration

Cation-diffusion controlled formation of thin graphene oxide composite membranes for efficient ethanol dehydration

High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target

Graphene‐Based Fibers: Recent Advances in Preparation and Application

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