High-performance, recyclable ultrafiltration membranes from P4VP-assisted dispersion of flame-resistive boron nitride nanotubes

Lim, Hongjin; Suh, Bong Lim; Kim, Myung Jong; Yun, Hongseok; Kim, Jihan; Kim, Bumjoon J.; Jang, Se Gyu

doi:10.1016/j.memsci.2018.01.030

Cited by 42 publications

(28 citation statements)

References 59 publications

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“…It is observed that BNNTs covered the PP separator ( Figure 2 b,c). 1−dimensional (1D) structure materials are usually stacked randomly to form a 3−dimension spidernet-like structure [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries

et al. 2021

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To prevent global warming, ESS development is in progress along with the development of electric vehicles and renewable energy. However, the state-of-the-art technology, i.e., lithium-ion batteries, has reached its limitation, and thus the need for high-performance batteries with improved energy and power density is increasing. Lithium-sulfur batteries (LSBs) are attracting enormous attention because of their high theoretical energy density. However, there are technical barriers to its commercialization such as the formation of dendrites on the anode and the shuttle effect of the cathode. To resolve these issues, a boron nitride nanotube (BNNT)-based separator is developed. The BNNT is physically purified so that the purified BNNT (p−BNNT) has a homogeneous pore structure because of random stacking and partial charge on the surface due to the difference of electronegativity between B and N. Compared to the conventional polypropylene (PP) separator, the p−BNNT loaded PP separator prevents the dendrite formation on the Li metal anode, facilitates the ion transfer through the separator, and alleviates the shuttle effect at the cathode. With these effects, the p−BNNT loaded PP separators enable the LSB cells to achieve a specific capacity of 1429 mAh/g, and long-term stability over 200 cycles.

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Section: Resultsmentioning

confidence: 99%

Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries

et al. 2021

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“…At present, the research study on practical uses of BNNT is extensively and continually conducted. For instance, in water purification, BNNTs has been examined in oil-filtering [ 69 ], self-cleaning membranes [ 70 ], and reusable heat-resistive films [ 71 ]. In the field of biological application, due to the nontoxicity property, BNNTs can be used as a biological probe [ 72 ], drug carrier [ 73 ], or biological channel in biosensor [ 74 ].…”

Section: Bnnt Synthesis Methodsmentioning

confidence: 99%

Boron nitride nanotubes: synthesis and applications

et al. 2018

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Boron nitride nanotube (BNNT) has similar tubular nanostructure as carbon nanotube (CNT) in which boron and nitrogen atoms arranged in a hexagonal network. Owing to the unique atomic structure, BNNT has numerous excellent intrinsic properties such as superior mechanical strength , high thermal conductivity, electrically insulating behavior, piezoelectric property, neutron shielding capability, and oxidation resistance. Since BNNT was first synthesized in 1995, developing efficient BNNT production route has been a significant issue due to low yield and poor quality in comparison with CNT, thus limiting its practical uses. However, many great successes in BNNT synthesis have been achieved in recent years, enabling access to this material and paving the way for the development of promising applications. In this article, we discussed current progress in the production of boron nitride nanotube, focusing on the most common and effective methods that have been well established so far. In addition, we presented various applications of BNNT including polymer composite reinforcement, thermal management packages, piezo actuators, and neutron shielding nanomaterial.

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“…As one of the biggest advantages of BNNT is its flame resistance, Lim et al introduced regenerable ultrafiltration membranes fabricated by the filtration of thermally stable and highly dispersed BNNTs ( Figure 6 a) by using poly(4-vinylpyridine) (P4VP) as the BNNT stabilizer with its strong adsorption energy. Even though BNNTs are highly hydrophobic, the BNNT membrane prepared by the P4VP-assisted dispersion exhibited a permeation of 230 L m −2 h −1 with a >99% removal efficiency of polystyrene and gold nanoparticles [ 107 ]. Casanova et al further reported the application of thin-film nanocomposite membranes of BNNTs by incorporating the nanotubes into a polyamide (PA) active layer via interfacial polymerization on a polyethersulfone support ( Figure 6 b).…”

Section: Perspectives On Key Membrane Studiesmentioning

confidence: 99%

“… Polymer composite applications of well-dispersed BNNTs: ( a ) fabrication of flame-resistive BNNT ultrafiltration membranes by using a polymeric dispersing agent (P4VP) (Reproduced from a previous study [ 107 ] with the permission of Elsevier); ( b ) Thin-film nanocomposite nanofiltration membranes with a BNNT-dispersed polyamide active layer (Reproduced from a previous study [ 108 ] with the permission of Elsevier). …”

Section: Figurementioning

confidence: 99%

Boron Nitride Nanotube (BNNT) Membranes for Energy and Environmental Applications

et al. 2020

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Owing to their extraordinary thermal, mechanical, optical, and electrical properties, boron nitride nanotubes (BNNTs) have been attracting considerable attention in various scientific fields, making it more promising as a nanomaterial compared to other nanotubes. Recent studies reported that BNNTs exhibit better properties than carbon nanotubes, which have been extensively investigated for most environment-energy applications. Irrespective of its chirality, BNNT is a constant wide-bandgap insulator, exhibiting thermal oxidation resistance, piezoelectric properties, high hydrogen adsorption, ultraviolet luminescence, cytocompatibility, and stability. These unique properties of BNNT render it an exceptional material for separation applications, e.g., membranes. Recent studies reported that water filtration, gas separation, sensing, and battery separator membranes can considerably benefit from these properties. That is, flux, rejection, anti-fouling, sensing, structural, thermal, electrical, and optical properties of membranes can be enhanced by the contribution of BNNTs. Thus far, a majority of studies have focused on molecular simulation. Hence, the requirement of an extensive review has emerged. In this perspective article, advanced properties of BNNTs are analyzed, followed by a discussion on the advantages of these properties for membrane science with an overview of the current literature. We hope to provide insights into BNNT materials and accelerate research for environment-energy applications.

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High-performance, recyclable ultrafiltration membranes from P4VP-assisted dispersion of flame-resistive boron nitride nanotubes

Cited by 42 publications

References 59 publications

Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries

Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries

Boron nitride nanotubes: synthesis and applications

Boron Nitride Nanotube (BNNT) Membranes for Energy and Environmental Applications

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