High electrical and thermal conductivities of a PAN-based carbon fiber via boron-assisted catalytic graphitization

Lee, Sora; Cho, Se Youn; Chung, Yong Sik; Choi, Young Chul; Lee, Sungho

doi:10.1016/j.carbon.2022.07.068

Cited by 26 publications

(3 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3d) shows that the interlayer spacing is 0.3391 nm which is close to the value for natural graphite. 47 Although the interlayer spacing of the petaloid akes reported in our former study (0.3285 nm) is smaller than the ake structure in EP-8 h, 33 EP-8 h appears to be competitive due to its high degree of graphitization and short production time. During the electrochemical transformation, the change of the sample microstructure affects its specic surface area and pore size distribution.…”

Section: Structural Evolution Of Electrolysis Productsmentioning

confidence: 52%

Electrochemical graphitization transformation of deposited carbon for Li-ion storage: sustainable energy utilization from coke oven solid waste

Guan

Song

et al. 2023

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Structural Evolution Of Electrolysis Productsmentioning

confidence: 52%

Electrochemical graphitization transformation of deposited carbon for Li-ion storage: sustainable energy utilization from coke oven solid waste

Guan

Song

et al. 2023

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…The degree of graphitization was analyzed using Raman spectroscopy, and the absorption peaks located at 1580 and 1360 cm −1 were D and G peaks, respectively, which can be used to characterize the degree of graphitization of CF using I D /I G (Figure 2A). 26 The value decreases from 1.25 to 0.98 with increasing temperature, indicating that the atomic defects of CFs are reduced and graphitization is enhanced (Figure 2B). 27 The higher carbonization temperature helps remove the defects encapsulated by non‐carbon elements, which gradually increases the orderliness of the graphite structure and enhances the electrical conductivity of CF.…”

Section: Resultsmentioning

confidence: 98%

Anisotropic electro‐driven phase change materials inspired by biological structure

Jia,

Li,

Wang

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

Electro‐driven phase change materials (PCMs) can effectively realize electrothermal conversion and storage and have attracted much attention in the fields of electrothermal therapy and thermal management of electronic devices. How to effectively reduce the leakage current risk of it is a core problem in the application process. In this work, we used carbon fibers and boron nitride to mimic the microstructure of Greta oto butterfly's wing, and composite it with a form‐stable PCM‐PPEGMA to obtain a thermally conductive enhanced anisotropic electro‐driven PCM. The material exhibits high electrothermal conversion and storage efficiency (86.76%, 5 V), high thermal conductivity, excellent electrical anisotropy, and thermal stability because of the well‐designed spatial arrangement. The unique bionic structure effectively inhibits the conductive isotropy phenomenon of traditional electro‐driven PCMs and significantly reduces the risk of leakage current. On the basis of this situation, the system shows great application potential in the field of electrothermal therapy.

show abstract

“…The development of efficient and low-cost energy storage devices is a key towards the electrification of various sectors, including the transportation and grid services [1][2][3], supporting the sustainable development goals. Lithium-ion battery (LIB) is the state of the art energy storage device in a wide variety applications and, therefore, its modifications in terms of performance, cost and availability of raw materials are of great importance [4][5][6] Graphite, including synthetic graphite (SG) and modified natural graphite (NG) is a commonly used material for the fabrication of the anode of LIBs, due to its modest theoretical capacity of 372 mAh g −1 and high cycle stability [7,8]. SG is made by the graphitization of carbonaceous material at extremely high temperatures (≈3000 • C) [9], which is an extremely energy-intensive approach.…”

Section: Introductionmentioning

confidence: 99%

Molten Salt-Assisted Catalytic Preparation of MoS2/α-MoO3/Graphene as High-Performance Anode of Li-Ion Battery

Zhu

Kamali

2023

Catalysts

View full text Add to dashboard Cite

We report on the facile and scalable catalytic conversion of natural graphite and MoS2 minerals into α-MoO3 nanoribbons incorporated into hexagonal MoS2 and graphene nanosheets, and evaluate the structural, morphological and electrochemical performances of the hybrid nanostructured material obtained. Mechanochemical treatment of raw materials, followed by catalytic molten salt treatment leads to the formation of nanostructures with promising electrochemical performances. We examined the effect of processing temperature on the electrochemical performance of the products. At 1100 °C, an excellent Li-ion storage capacity of 773.5 mAh g−1 is obtained after 180 cycles, considerably greater than that of MoS2 (176.8 mAh g−1). The enhanced capacity and the rate performance of this electrode are attributed to the well-integrated components, characterized by the formation of interfacial molybdenum oxycarbide layer during the synthesis process, contributing to the reduced electrical/electrochemical resistance of the sample. This unique morphology promotes the charge and ions transfer through the reduction of the Li-ion diffusion coefficient (1.2 × 10−18 cm2 s−1), enhancing the pseudocapacitive performance of the electrode; 59.3% at the scan rate of 0.5 mV s−1. This article provides a green and low-cost route to convert highly available natural graphite and MoS2 minerals into nanostructured hybrid materials with promising Li-ion storage performance.

show abstract

High electrical and thermal conductivities of a PAN-based carbon fiber via boron-assisted catalytic graphitization

Cited by 26 publications

References 54 publications

Electrochemical graphitization transformation of deposited carbon for Li-ion storage: sustainable energy utilization from coke oven solid waste

Electrochemical graphitization transformation of deposited carbon for Li-ion storage: sustainable energy utilization from coke oven solid waste

Anisotropic electro‐driven phase change materials inspired by biological structure

Molten Salt-Assisted Catalytic Preparation of MoS2/α-MoO3/Graphene as High-Performance Anode of Li-Ion Battery

Contact Info

Product

Resources

About