Flexible Cotton Fiber-Based Composite Films with Excellent Bending Stability and Conductivity at Cryogenic Temperature

Li, Meng; Huang, Guan‐Jhong; Li, Na; Liu, Yu; Qu, Cheng-Bing; Huang, Yong

doi:10.1021/acsami.2c03199

Cited by 8 publications

(6 citation statements)

References 66 publications

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“…This is also supported with the Hagen−Poiseuille theoretical models and experimental work. 28 Furthermore, the water permeance of the 240-nm thick GOLB membrane reaches 1300 L m −2 h −1 bar −1 , which is significantly greater than the permeance of most GO and rGO filtration membranes (Table S2).…”

Section: Water Permeance and Rejectionmentioning

confidence: 95%

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Ali,

Vohra,

Nadeem

et al. 2024

ACS Appl. Polym. Mater.

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Graphene oxide offers a promising opportunity to fabricate highly efficient and pressure-endurable membranes in terms of water permeability while demonstrating a high level of solute rejection. However, achieving higher permeance with an excellent separation capability is still challenging. Herein, we report a class of graphene oxide-lignin biopolymer (GOLB) membranes for the first time prepared by functionalizing GO nanosheets with lignin biopolymer extracted from plant pulp. Lignin biopolymer is the most abundant, green, low-cost, and environmentally friendly material with a variety of oxygen functional groups. The asprepared GOLB membranes have a unique laminated structure that provides an excellent rejection (>99%) for several organic dyes, proteins, and biomolecules with variable molecular weight and exhibits ultrawater permeance ∼1300 L m −2 h −1 bar −1 , more than that of reported GO-based membranes. It is interesting that due to larger interlayer spacing, such membranes show less rejection (<10%) for salts, i.e., NaCl, MgCl 2 , Na 2 SO 4 , etc. Furthermore, these membranes are highly stable up to 37 days in an aqueous environment and 28 days in acidic and basic solutions compared to pristine GO-based membranes.

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Section: Water Permeance and Rejectionmentioning

confidence: 95%

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Ali,

Vohra,

Nadeem

et al. 2024

ACS Appl. Polym. Mater.

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“…The increase in contact angle proves that TTA can improve the hydrophobicity of perovskite, which can be attributed to the C−F groups in TTA. 56 Next, to study the effect of TTA on the stability of the PSCs, the retention PCE of the unencapsulated devices is investigated under various storage conditions (both devices were tested under dark conditions). The aging stability test was carried out in a cabinet with 10±5 RH %, as shown in Figure 6b.…”

Section: 2mentioning

confidence: 99%

Passivating Defects via Retarding the Reaction Rate of FAI and PbI₂ Enables Stable Perovskite Solar Cells

Su,

Hu,

Jisi

et al. 2024

ACS Appl. Mater. Interfaces

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The two-step sequential deposition strategy has garnered widespread usage in the fabrication of high-performance perovskite solar cells based on FAPbI 3 . However, the rapid reaction between FAI and PbI 2 during preparation often leads to incomplete reactions, reducing the device efficiency and stability. Herein, we introduced a multifunctional additive, 2-thiophenyl trifluoroacetone (TTA), into the FAI precursor. The incorporation of TTA has proven to be highly effective in slowing the reaction rate between FAI and PbI 2 , resulting in increased perovskite formation and improved efficiency and stability of the devices. TTA's CF 3 groups interact with FAI via hydrogen bonding, effectively suppressing FA + defects. The S and C�O groups share lone pair electrons with uncoordinated Pb 2+ , leading to a reduction in perovskite film defects and suppressing nonradiative recombination. Additionally, the CF 3 groups impart hydrophobicity, protecting the perovskite film from moistureinduced erosion. As a result, the TTA-modified perovskite film achieves a Champion efficiency of 23.42% compared to the control's 21.52, with 20.58% efficiency for a 25 cm 2 solar module. Remarkably, the unencapsulated Champion device retains 86% of its initial PCE after 1080 h under dark conditions (60 ± 5 °C, 35 ± 5% RH), indicating enhanced long-term stability. These findings offer a promising and cost-effective tactic for high-quality perovskite film fabrication.

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“…In the suspension, the length distribution of cotton bers is primarily concentrated in the range of 0 to 400 µm, and the diameter distribution is mainly concentrated in the range of 0 to 2 µm. (Li et al 2022) Subsequently, the prepared cotton ber suspension was mixed with the silver nanowire (Ag-NWs) suspension and stirred to ensure effective coating of Ag-NWs onto the cotton bers.…”

Section: Synthesis Of Ag-nwsmentioning

confidence: 99%

Cotton Fiber-Based 1D Conductor：A New Type of Flexible Wire for Cryogenic Electrical System

Li,

Huang,

et al. 2024

Preprint

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In response to the problem of poor flexibility of common one-dimensional flexible conductors at low temperatures, this paper proposed a one-dimensional flexible conductive composite material with cotton fiber as the substrate and silver-nanowires as the conductive fillers to meet the demands of flexible conductors in low temperature fields such as space exploration, superconductivity, low-temperature biology, etc.Through a creative "bottom-up" fabricating process, by adjusting the amount of filler added and the degree of intertwining between cotton fibers, 1D flexible conductor with good flexibility, conductivity, strength and stability is obtained. After 10,000 times of flexibility tests at liquid nitrogen temperature (77K), the resistance change of the 1D conductor is less than ±0.5%, showing excellent flexibility and stability of the material at low temperature environment. A demonstration was then successfully conducted by connecting the 1D conductor to the circuit as the flexible part of the system in simulated working environment (77K). The system worked well with good stability under repeated bending of the mechanical arm, demonstrating high applying potential of the 1D conductor in the field of low-temperature flexible conductive materials.

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Flexible Cotton Fiber-Based Composite Films with Excellent Bending Stability and Conductivity at Cryogenic Temperature

Cited by 8 publications

References 66 publications

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Passivating Defects via Retarding the Reaction Rate of FAI and PbI₂ Enables Stable Perovskite Solar Cells

Cotton Fiber-Based 1D Conductor：A New Type of Flexible Wire for Cryogenic Electrical System

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Flexible Cotton Fiber-Based Composite Films with Excellent Bending Stability and Conductivity at Cryogenic Temperature

Cited by 8 publications

References 66 publications

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Passivating Defects via Retarding the Reaction Rate of FAI and PbI2 Enables Stable Perovskite Solar Cells

Cotton Fiber-Based 1D Conductor：A New Type of Flexible Wire for Cryogenic Electrical System

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Passivating Defects via Retarding the Reaction Rate of FAI and PbI₂ Enables Stable Perovskite Solar Cells