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| Influence of bismuth trisulfide on the electrochemical performance of iron electrode |
| Author Name | Affiliation | E-mail | | ZHANG Yi | School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China | | | LI Guang | School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China | | | FAN Wenxuan | School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China | | | YI Qingfeng | School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China | yqfyy2001@hnust.edu.cn |
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| Abstract: Iron (Fe) nanoparticles and graphite (Gr) with different masses of bismuth trisulfide (Bi2S3) were mixed by high-energy ball milling treatment to fabricate the corresponding composite iron anodes Bi2S3@Fe-Gr. The hydrogen evolution reaction and iron passivation process on these iron electrodes were investigated in alkaline and neutral solutions. The iron electrode Bi2S3-3@Fe-Gr (The additional amount of Bi2S3 was 3 mg) revealed the strongest ability to inhibit hydrogen evolution among the iron electrodes of the present investigation, while the Bi2S3-6@Fe-Gr electrode (The additional amount of Bi2S3 was 6 mg) delivered significant performance in inhibiting anodic passivation. This is because the high-energy ball milling process leads to the well-dispersion of Bi2S3 and the changes in the surface of Fe nanoparticles, thereby slowing down the passivation of the iron electrode surface. |
| Keywords: iron-air battery bismuth trisulfide graphite passivation hydrogen evolution reaction |
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| ZHANG Yi,LI Guang,FAN Wenxuan,YI Qingfeng.Influence of bismuth trisulfide on the electrochemical performance of iron electrode[J].Chinese Journal of Inorganic Chemistry,2025,41(6):1196-1206. |
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