2D graphene oxide and MXene nanosheets at carbon fiber surfaces

Adstedt, Katarina; Buxton, Madeline L.; Henderson, Luke C.; Hayne, David J.; Nepal, Dhriti; Gogotsi, Yury; Tsukruk, Vladimir V.

doi:10.1016/j.carbon.2022.11.028

Cited by 14 publications

(13 citation statements)

References 59 publications

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“…Next, the combination of mechanical compression and thermal annealing produced (m-v-120-GO-M) reduced d -spacing compared to the prior membranes. The d -spacing was 11.3 Å for wet and 7.9 Å for dry state, respectively (7.9 Å is the lowest d -spacing observed to date) . Here, the reduction in the d -spacing is profound for m-v-120-GO-M membrane samples.…”

Section: Resultsmentioning

confidence: 58%

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

Tiwary,

Singh,

Likhi

et al. 2024

ACS Environ. Au

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Membrane-based water purification is poised to play an important role in tackling the potable water crisis for safe and clean water access for the general population. Several studies have focused on near two-dimensional membranes for this purpose, which is based on an ion rejection technique. However, membrane swelling in these materials has emerged as a significant challenge because it leads to the loss of function. Herein, we report a self-crosslinked MXene-intercalated graphene oxide (GO) membrane that retains ion and dye rejection properties because the physical cross-linking interaction between Ti− O−Ti and neighboring nanosheets effectively suppresses the swelling of the membrane. In addition to the associative Ti−O−Ti bonds, C−O−C, O�C−O, and C−OH bonds are also formed, which are important for inhibiting the swelling of the membrane. To ensure the longevity of these membranes in a service context, they were subjected to heat pressurization and subsequent thermal annealing. The membrane subjected to this novel processing history exhibits minimal swelling upon immersion in solutions and retains function, rejecting salt and dyes over a wide range of salt and dye concentrations. Furthermore, these membranes successfully rejected dye and salt over a period of 72 h without a degradation of function, suggesting that these membranes have the requisite durability for water filtration applications.

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Section: Resultsmentioning

confidence: 58%

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

Tiwary,

Singh,

Likhi

et al. 2024

ACS Environ. Au

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“…The presence of buried POSS nanoparticles underneath the MXene nanosheets was verified by using XPS (Figure a and Table S2). XPS survey scans of pure drop-cast MXene films revealed a composition of 51.9 at % carbon, 20.9 at % oxygen, 18.9 at % titanium, and small amounts (<7 at %) of fluorine and chlorine, which is similar to other reports on MXenes. ,, The hybrid multilayered films exhibited additional peaks attributed to nitrogen (1.1–1.9 at %), silicon (5.9–6.2 at %), and bromine (1.1–1.7 at %) resulting from the silsesquioxane cores, tertiary nitrogen atoms, and bromine counterions of the modified POSS nanoparticles within multilayered films. Furthermore, all films showed strong C–Ti-T x (6.6–12%) resulting from the MXene nanosheets.…”

Section: Resultsmentioning

confidence: 99%

“…AFM topography images of drop-cast aqueous dispersions show MXene (MX) nanosheets with a thickness of 1.7 ± 0.4 nm, a length of 4.8 ± 1.2 nm, and a width of 2.5 ± 0.9 nm, similar to previous reports on Ti 3 C 2 T x MXenes (Figure ). , Synthesized POSS nanoparticles have diameters of 2.7 nm with narrow size distribution …”

Section: Resultsmentioning

confidence: 99%

“…show MXene (MX) nanosheets with a thickness of 1.7 ± 0.4 nm, a length of 4.8 ± 1.2 nm, and a width of 2.5 ± 0.9 nm, similar to previous reports on Ti 3 C 2 T x MXenes (Figure 1). 29,30 Synthesized POSS nanoparticles have diameters of 2.7 nm with narrow size distribution. 19 After adsorption, the functionalized POSS with short alkyl chains (POSS-2) formed flat disklike micelles with diameters of 69.7 ± 9.7 nm and heights of 6.8 ± 2.0 nm, while POSS with longer alkyl chains (POSS-9) formed flat cylindrical micelles with lengths of 115.6 ± 14.9 nm, widths of 73.6 ± 6.8 nm, and heights of 9.8 ± 2.2 nm (Figure 1 and Figure S3).…”

Section: Afm Topography Images Of Drop-cast Aqueous Dispersionsmentioning

confidence: 99%

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Ultrathin Films of MXene Nanosheets Decorated by Ionic Branched Nanoparticles with Enhanced Energy Storage Stability

Flouda,

Inman,

Gumenna

et al. 2023

ACS Appl. Mater. Interfaces

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Two-dimensional (2D) materials such as MXenes have shown great potential for energy storage applications due to their high surface area and high conductivity. However, their practical implementation is limited by their tendency to restack, similar to other 2D materials, leading to a decreased long-term performance. Here, we present a novel approach to addressing this issue by combining MXene (Ti 3 C 2 T x ) nanosheets with branched ionic nanoparticles from polyhedral oligomeric silsesquioxanes (POSS) using an amphiphilicity-driven assembly for the formation of composite monolayers of nanoparticle-decorated MXene nanosheets at the air−water interface. The amphiphilic hybrid MXene/POSS monolayers allow for the fabrication of organized multilayered films with ionic nanoparticles supporting the nanoscale gap between MXene nanosheets. For these composite multilayers, we observed a 400% enhancement in specific capacitance compared to pure drop-cast MXene films. Furthermore, dramatically enhanced electrochemical cycling stability for ultrathin-film electrodes (<400 nm in thickness) with a 91% capacitance retention over 10,000 cycles has been achieved. Our results suggest that this insertion of 0D ionic nanoparticles with complementary interactions in between 2D MXene nanosheets could be extended to other hybrid 0D−2D nanomaterials, providing a promising pathway for the development of hybrid electrode architectures with enhanced ionic transport for long-term energy cycling and storage, capacitive deionization, and ionic filtration.

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“…[6][7][8] In recent decades, the emerging 2D material composed of transition metal carbides, carbonitrides, and nitrides, namely MXene with the general chemical formula of M n+1 X n T x (M, X, and T x , represent the early transition metal, carbon and/or nitrogen, and surface functional groups, respectively, the value of n ranges from 1 to 4), [9,10] especially Ti 3 C 2 T x , have been widely explored in a variety of fields, such as supercapacitors, [11] batteries, [12] catalysts, [13] sensors, [14,15] electromagnetic interference (EMI) shielding, [16] and sizing agent. [17] Owing to the unique acidic etching process for preparing MXene, there are abundant hydrophilic and electronegative groups (e.g., ─O, ─OH, ─F) on the surface of MXene, [18,19] endowing good aqueous dispersibility, tremendous interlayer bonding force, and convenient modifiability, which makes it a fascinating sizing candidate for optimizing the surface energy, wettability, and roughness of carbon fiber (CF) surface, then enhancing the interfacial and mechanical properties of the CF/resin composites. [20,21] Different from traditional sizing agents, MXene is easier to prepare and applicable to most sizing processes.…”

Section: Introductionmentioning

confidence: 99%

L‐Cysteine‐Encapsulated MXene Nanosheet Possessing Ultra‐Antioxidation in Aqueous Suspension for Electrophoretic Deposition Assisted Carbon‐Fiber‐Surface Modification

Huang,

Du,

Tian

et al. 2023

Adv Materials Inter

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With recent progress in 2D materials, Ti3C2Tx MXene featured high metallic electrical conductivity, high electromagnetic interference shielding effectiveness, and super in‐plane stiffness, exhibits unique advantages in many fields, but is rarely applied as a sizing agent in long‐time continuous processing of carbon fiber sizing because of its poor ambient stability in aqueous suspension. Herein, a new strategy to chemically encapsulate the reactive sites of MXene nanosheet with l‐cysteine for restricting the attacking of water and/or oxygen in aqueous suspension is proposed. Based on the ultra‐antioxidation, polarity, and electrical properties of l‐cysteine‐encapsulated Ti3C2Tx MXene (LC‐MX) nanosheet, the LC‐MX, even if aging for weeks in aqueous suspension, can be deposited on the surface of high‐modulus carbon fiber (HMCF) uniformly via the electrophoretic deposition assisted sizing. Benefiting from the enhanced surface energy, wettability, and roughness of LC‐MX‐sized HMCF (HMCF‐LCMX) relative to that of unsized one (U‐HMCF), the interfacial property of HMCF‐LCMX/epoxy (EP) composites is also improved, for which the interlayer shear strength (ILSS) of the composite reached 88.5 MPa, 52.8% higher than that of U‐HMCF/EP composite (57.9 MPa). This work makes an essential step toward the application of ultra‐stable MXene nanosheet suspension in large‐scale continuous carbon fiber sizing.

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2D graphene oxide and MXene nanosheets at carbon fiber surfaces

Cited by 14 publications

References 59 publications

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

Self-Cross-Linking of MXene-Intercalated Graphene Oxide Membranes with Antiswelling Properties for Dye and Salt Rejection

Ultrathin Films of MXene Nanosheets Decorated by Ionic Branched Nanoparticles with Enhanced Energy Storage Stability

L‐Cysteine‐Encapsulated MXene Nanosheet Possessing Ultra‐Antioxidation in Aqueous Suspension for Electrophoretic Deposition Assisted Carbon‐Fiber‐Surface Modification

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