Utilization of waste wool felt architecture to synthesize self-supporting electrode materials for efficient energy storage

Wu, Ziqin; Zeng, Yue; Liu, Yiping; Xiao, Hang; Zhang, Tonghua; Lü, Ming

doi:10.1039/d1nj03834f

Cited by 5 publications

(12 citation statements)

References 49 publications

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“…This indicated that the chemical groups on the surface of the treated wool fibers were similar to those of the untreated wool fibers. 40,41…”

Section: Resultsmentioning

confidence: 99%

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The effect of a novel catalytic system with Savinase 16L and an organophosphine compound on the shrink-proofing and dyeing properties of wool

Wang,

Duan,

Yao

et al. 2023

New J. Chem.

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“…This indicated that the chemical groups on the surface of the treated wool fibers were similar to those of the untreated wool fibers. 40,41…”

Section: Resultsmentioning

confidence: 99%

“…This indicated that the chemical groups on the surface of the treated wool fibers were similar to those of the untreated wool fibers. 40,41 XPS was used to further analyze the surface structure of wool fibers. The XPS full spectrum and S2p spectrum of wool samples are displayed in Fig.…”

Section: Analysis Of the Wool Fiber Structurementioning

confidence: 99%

The effect of a novel catalytic system with Savinase 16L and an organophosphine compound on the shrink-proofing and dyeing properties of wool

Wang,

Duan,

Yao

et al. 2023

New J. Chem.

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“…Wu et al used wool felt as a self-supporting material and successfully produced wool felt as an electroactive material through in situ polymerization of pyrrole and a hot-pressing process for energy storage, revealing that wool felt has excellent application prospects in fabric electronics. 51 However, there are some nonnegligible challenges in the aspects of its preparation time and temperature. Compared with the hotpressing, the wet-felt process can be operated at room temperature with a shorter operation time, which shows the advantages of a simple process, high production efficiency, and low cost.…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that traditional fabrics are made from chemical fibers or plant fiber by loom processing, while felts can be made from animal fibers by non-woven means, including the wet-felt method and hot-pressing process. Wu et al used wool felt as a self-supporting material and successfully produced wool felt as an electroactive material through in situ polymerization of pyrrole and a hot-pressing process for energy storage, revealing that wool felt has excellent application prospects in fabric electronics . However, there are some nonnegligible challenges in the aspects of its preparation time and temperature.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Fabric Sensors Based on Scale-like Wool Fiber for Multifunctional Health Monitoring

Fan

et al. 2023

ACS Appl. Mater. Interfaces

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Highly sensitive, multifunctional, and comfortable fabric sensors with splendid electrical properties for precise detection of human physiological health parameters have attractive prospects in next-generation wearable flexible devices. However, it remains a non-ignorable challenge to construct a multifunctional fabric sensor to meet the requirements of compact structure, high sensitivity, fast response, excellent stability, and air permeability. Here, a wool felt@MXene fabric sensor (WF@MFS) prepared by felting large quantities of wool coated with MXene is reported for measuring multiple physiological parameters in a noninvasive manner. With the high conductivity and outstanding mechanical properties of MXene and the special scale-like surface structure of the wool fiber, the sensor exhibits remarkable sensing performance such as high pressure sensitivity (80.79 kPa −1 ), fast response (40 ms), low detection limit (12 Pa), and strong stability (>12,500 cycles). Furthermore, to avoid direct contact between MXene and the human body, the WF@MFS is encapsulated in pure wool without MXene, thereby enabling the fabricated sensor to be tightly integrated into a variety of clothing for monitoring different physiological signals and information about human activities. More importantly, we develop an intelligent cushion with a square and panda pattern and an intelligent neckerchief in the form of arrays based on the WF@MFS, which can intuitively observe the real-time force distribution of the thigh and cervical spine by means of machine learning when a human body sits in different postures. The sensor proposed in this work demonstrates the great ability to prevent cardiovascular disease and the related diseases caused by improper sitting postures in advance, paving a promising path for future wearable smart fabric electronics.

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“…Polypyrrole is a conductive polymer that has the advantages of nontoxicity, easy polymerization, high conductivity, and excellent atmospheric and thermal stability compared to other conductive polymers [11,[13][14][15]. It is actively used in the development of e-textiles owing to its excellent adhesion to various textile substrates, such as cotton, wool, nylon, and polyester [11].…”

Section: Introductionmentioning

confidence: 99%

Polypyrrole-wool composite with electrical heating properties fabricated via layer-by-layer method

Lee

2023

Preprint

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Conductive polymer-textile composites with electric heating features were developed by the in-situ polymerization of polypyrrole on wool-felt fabrics. In particular, the amount and uniformity of polypyrrole deposition inside the fabrics was controlled by consecutive cycles of layer-by-layer (LBL) in-situ polymerization. To analyze the interaction principle of wool fiber and polypyrrole and to explore the processing conditions that can maintain the mechanical properties of the composites, the appearance, add-on, and electrical heating performance were evaluated according to the number of LBL cycles. The polypyrrole formed spherical particles on the wool-felt after polymerization. As the number of LBL cycles increased, more polypyrrole particles were deposited. In the case of mechanical properties, the tensile strength and bending rigidity increased with the polypyrrole deposition, and the strain decreased; however, the difference according to the number of LBL cycles was insignificant. However, the electrical properties were implemented in the polypyrrole-wool composites by polymerization, and a rapid decrease in the surface resistance was observed until the second LBL cycle. In the case of electrical heating performance, the surface temperature increased by up to 15.5 ℃ when 12 V voltage was applied, and the surface temperature increased linearly as the number of LBL cycles increased. This electrical heating performance maintained a high temperature for a certain period, even after removing the voltage, owing to the low thermal conductivity of the wool fiber. In addition, the polypyrrole conductive layer maintained excellent conductivity even after repeated abrasion owing to the improvement in uniformity by the LBL cycles.

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Utilization of waste wool felt architecture to synthesize self-supporting electrode materials for efficient energy storage

Abstract: Wool felt, as a kind of natural biomass material, was usually discarded directly after industrial application. However, the wool felt with overhead network and open-channel architecture can be utilized as...

Cited by 5 publications

References 49 publications

The effect of a novel catalytic system with Savinase 16L and an organophosphine compound on the shrink-proofing and dyeing properties of wool

The effect of a novel catalytic system with Savinase 16L and an organophosphine compound on the shrink-proofing and dyeing properties of wool

Highly Sensitive Fabric Sensors Based on Scale-like Wool Fiber for Multifunctional Health Monitoring

Polypyrrole-wool composite with electrical heating properties fabricated via layer-by-layer method

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