“…PCFP-6-1200 exhibited the highest conductivity, reaching 43.250 sÁcm À1 . Figure 7 showed that the prepared PAN carbon fiber paper had a higher conductivity than the reported carbon fiber paper, 6,8,30,31 and also proved that the preparation of carbon fiber paper by centrifugal spinning had a good prospect in related fields.…”
Section: Electrical Properties Of Polyacrylonitrile Carbon Fiber Papermentioning
confidence: 70%
“…PCFP-6-1200 exhibited the highest conductivity, reaching 43.250 s·cm −1 . Figure 7 showed that the prepared PAN carbon fiber paper had a higher conductivity than the reported carbon fiber paper, 6,8,30,31 and also proved that the preparation of carbon fiber paper by centrifugal spinning had a good prospect in related fields.Figure 6.(a) Resistivity and conductivity of the PAN carbon fiber paper with different mass fraction: PCFP-1-1200, PCFP-2-1200, PCFP-3-1200, PCFP-4-1200, (b) Resistivity and conductivity of the PAN carbon fiber paper with different carbonization temperature: PCFP-2-800, PCFP-2-1000, PCFP-2-1200 and (c) Resistivity and conductivity of the PAN carbon fiber paper with different average molecular weight: PCFP-2-1200, PCFP-3-1200, PCFP-5-1200, PCFP-6-1200.Figure 7.Comparison of the electrical properties towards conductivity with reported work.…”
Polyacrylonitrile (PAN) carbon fibers are often used to prepare high-performance paper-based materials owing to their high strength, good electrical and thermal conductivity, and superior comprehensive properties. In this study, a novel method for preparing PAN-based carbon fibers by centrifugal spinning was developed, and a stable and homogeneous PAN carbon fiber paper was successfully obtained. Subsequently, the formation process, microscopic morphology, electrical conductivity, electrochemical performance and hydrophobicity of the PAN carbon fiber paper were studied and evaluated. The results showed that the electrical conductivity of the PAN carbon fiber paper prepared via this method reached 43.250 s·cm−1, resistivity was as low as 0.023–0.033 Ω·cm, and contact angle exceeded 140°. This study adopted a new method to prepare PAN carbon fiber paper, which provided another method for the preparation of high-performance fiber paper.
“…PCFP-6-1200 exhibited the highest conductivity, reaching 43.250 sÁcm À1 . Figure 7 showed that the prepared PAN carbon fiber paper had a higher conductivity than the reported carbon fiber paper, 6,8,30,31 and also proved that the preparation of carbon fiber paper by centrifugal spinning had a good prospect in related fields.…”
Section: Electrical Properties Of Polyacrylonitrile Carbon Fiber Papermentioning
confidence: 70%
“…PCFP-6-1200 exhibited the highest conductivity, reaching 43.250 s·cm −1 . Figure 7 showed that the prepared PAN carbon fiber paper had a higher conductivity than the reported carbon fiber paper, 6,8,30,31 and also proved that the preparation of carbon fiber paper by centrifugal spinning had a good prospect in related fields.Figure 6.(a) Resistivity and conductivity of the PAN carbon fiber paper with different mass fraction: PCFP-1-1200, PCFP-2-1200, PCFP-3-1200, PCFP-4-1200, (b) Resistivity and conductivity of the PAN carbon fiber paper with different carbonization temperature: PCFP-2-800, PCFP-2-1000, PCFP-2-1200 and (c) Resistivity and conductivity of the PAN carbon fiber paper with different average molecular weight: PCFP-2-1200, PCFP-3-1200, PCFP-5-1200, PCFP-6-1200.Figure 7.Comparison of the electrical properties towards conductivity with reported work.…”
Polyacrylonitrile (PAN) carbon fibers are often used to prepare high-performance paper-based materials owing to their high strength, good electrical and thermal conductivity, and superior comprehensive properties. In this study, a novel method for preparing PAN-based carbon fibers by centrifugal spinning was developed, and a stable and homogeneous PAN carbon fiber paper was successfully obtained. Subsequently, the formation process, microscopic morphology, electrical conductivity, electrochemical performance and hydrophobicity of the PAN carbon fiber paper were studied and evaluated. The results showed that the electrical conductivity of the PAN carbon fiber paper prepared via this method reached 43.250 s·cm−1, resistivity was as low as 0.023–0.033 Ω·cm, and contact angle exceeded 140°. This study adopted a new method to prepare PAN carbon fiber paper, which provided another method for the preparation of high-performance fiber paper.
“…[ 6 ] These IO structures have shown important applications in diverse fields, such as catalytic reaction, [ 4a ] biosensors, [ 7 ] solar cells, [ 8 ] and supercapacitor. [ 9 ] However, compared to metal‐oxides, [ 10 ] silicas, [ 11 ] carbons, [ 12 ] g‐C 3 N 4 , [ 13 ] and polymers, [ 14 ] metal–organic frameworks (MOFs), which comprise a large class of highly tunable crystalline porous materials based on reticular chemistry, have been seldom used to construct inverse opal structures due to the incompatibility between the traditional MOFs and IO structures synthesis methods. Only a few macro/meso‐microporous MOFs obtained using template methods have been reported because induced in situ crystallization of MOFs in hard templates is hard to control.…”
Hierarchically ordered porous materials with tailored and inter‐connected macro‐, meso‐, and micro‐pores would facilitate the heterogeneous adsorption and catalysis processes for a wide range of applications but remain a challenge for synthetic chemists. Here, a general and efficient strategy for the synthesis of inverse opal metal–organic frameworks (IO MOFs) with a tunable size of macro‐, meso‐, and micro‐pores is reported. The strategy is based on the step‐wise template formation, precursor infiltration, solvo‐thermal reaction, and chemical etching. As a proof of the general applicability of this strategy, a series of inverse opal zirconium‐based MOFs with intrinsic micro‐ and/or meso‐pores, including UiO‐66, MOF‐808, NU‐1200, NU‐1000 and PCN‐777, and tunable macropores (1 µm, 2 µm, 3 µm, 5 µm, and 10 µm), have been prepared with outstanding yields. These IO MOFs demonstrate significantly enhanced absorption rates and faster initial hydrolysis rates for organophosphorus (OPs) aggregates compared to those of the pristine MOFs. This work paves the way for the further development of hierarchically ordered MOFs for advanced applications.
“…These include, HF etching to remove the template material, 24,25 chemical vapor deposition for template inlling, 26 and the use of toxic carbon-precursors, including a phenol-formaldehyde resorcinol, a mixture of furfuryl alcohol and oxalic acid, and bis-ortho-diynyl arsene (BODA) monomers. [27][28][29][30][31] The aim of this study is to simplify the synthesis procedure for carbon IOs. In this report, we detail the facile synthesis of carbon IOs, prepared with sucrose, a non-toxic, and environmentally benign precursor, and PS spheres.…”
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