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| Preparation of High-performance Carbon Paper Using Modified Mesophase Pitch-based Carbon Fibers |
| Received:September 04, 2025 Revised:September 29, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.04.004 |
| Key Words:carbon paper mesophase pitch-based carbon fibers electrical conductivity air permeability |
| Fund Project:辽宁省科技计划联合计划（2025JH2/101800304）；大连市重点科技研发计划项目（2023YF14GX021）。 |
| Author Name | Affiliation | Postcode | | ZHAO Ning* | 1Dalian Maritime University, Dalian, Liaoning Province, 116026
3Tangshan Environmental Planning Science Research Institute, Tangshan, Hebei Province, 130205 | 130205 | | LIU Hui* | 1Dalian Maritime University, Dalian, Liaoning Province, 116026 | 116026 | | DU Shuming | 1Dalian Maritime University, Dalian, Liaoning Province, 116026 | 116026 | | WANG Yangfeng | 2Sinopec（Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 | | WANG Hongtao | 2Sinopec（Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 | | MA Chuanjun | 2Sinopec（Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 |
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| Abstract:In this study, mesophase pitch-based (MP) carbon fibers were modified through high-temperature air oxidation, and then blended with polyacrylonitrile (PAN)-based carbon fibers to fabricate high-performance carbon papers. A comprehensive comparison was conducted on the surface morphology, electrical conductivity, tensile strength, air permeability, and electrochemical performance (when used as gas diffusion layers) of carbon papers with different MP carbon fiber doping ratios. The results showed that carbon paper exhibited the best performance when the MP carbon fiber doping rations was 50%, with a tensile strength of 24.41 MPa, an air permeability of 13 455 mL·mm/(cm²·h·mmHg), and an area-specific resistivity of 4.65 mΩ·cm. Moreover, its electrochemical performance as a gas diffusion layer was superior to that of commercially available imported carbon papers. |
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