Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting
文献类型：期刊论文
| 作者 | Ju, QJ; Ma, RG; Pei, Y; Guo, BB; Liu, Q; Zhang, T; Yang, MH; Wang, JC |
| 刊名 | MATERIALS RESEARCH BULLETIN
 |
| 出版日期 | 2020-05-01 |
| ISSN号 | 0025-5408 |
| DOI | 10.1016/j.materresbull.2020.110770 |
| 文献子类 | Article |
| 英文摘要 | Developing non-precious multi-functional electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) to replace noble metal (Pt, Ru, Ir, etc) is one of the most important directions in the field of energy conversion and storage. Herein, we successfully prepared CoSx nanoparticles loaded onto N-doped carbon spheres to form unique CoSx/NCS nanocomposites, showing good trifunctional activities for ORR, OER and HER. As the cathodic electrocatalyst in Zn-air battery, the CoSx/NCS shows a lower charge voltage of 2.1 V and a high power density of 72.7 mW cm(-2) compared to Pt/C. CoSx/NCS also shows potentials in overall water splitting as the OER and HER electrocatalysts. The onset potential and overpotential at 10 mA cm(-2) toward overall water splitting reaches 1.70 V and 1.83 V, respectively. The enhanced activity of CoSx/NCS should be ascribed to the synergistic effects of improved surface hydrophilicity, CoN sites, pyridinic-N species, and Co-S bonds. This study provides a new strategy to synthesize active electrocatalysts with multiple functions in energy conversion and storage. |
| WOS关键词 | METAL-FREE ELECTROCATALYST ; HYDROGEN EVOLUTION ; OXYGEN REDUCTION ; MESOPOROUS CARBON ; NANOTUBES ; CATALYST |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28102]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Ju, QJ,Ma, RG,Pei, Y,et al. Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting[J]. MATERIALS RESEARCH BULLETIN,2020. |
| APA | Ju, QJ.,Ma, RG.,Pei, Y.,Guo, BB.,Liu, Q.,...&Wang, JC.(2020).Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting.MATERIALS RESEARCH BULLETIN. |
| MLA | Ju, QJ,et al."Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting".MATERIALS RESEARCH BULLETIN (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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