Advanced high-entropy alloy catalysts for robust and efficient natural seawater splitting
文献类型：期刊论文
| 作者 | Bian, Haowei1,2; Qi, Peng1; Xie, Guangwen2; Liu, Xin2; Zeng, Yan1; Wang, Peng1 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 154页码:9 |
| 关键词 | Oxygen evolution reaction High entropy alloy Corrosion resistance Direct seawater electrolysis Anion layer |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2025.150215 |
| 通讯作者 | Qi, Peng(qipeng@qdio.ac.cn) ; Xie, Guangwen(xiegw@qust.edu.cn) ; Wang, Peng(wangpeng@qdio.ac.cn) |
| 英文摘要 | Direct electrolysis of natural seawater represents a promising new hydrogen production technology, but the process is impeded by the corrosive nature of chloride ions present in natural seawater. Furthermore, the thermodynamic competition between the chlorine evolution reaction (CER) and the oxygen evolution reaction (OER) aggravates this issue. This study introduces a paradigm-shifting approach by employing a novel highentropy alloy (HEA) catalyst, synthesized through an innovative electrodeposition process followed by a hightemperature calcination, to address the stability and efficiency challenges in seawater electrolysis. The HEA catalyst, denoted as HEA-NFCCM/Ti@S, exhibits exceptional catalytic activity for the OER with overpotentials of 252 mV at 10 mA cm(-2) in alkaline solution. The unique elemental composition of HEA, integrating nickel, iron, cobalt, chromium, manganese, and sulfur, uses the high-entropy effect and the sluggish diffusion effect to enhance structural stability and catalytic performance. The formation of sulfate anion layer and by Cr-induced Lewis acid layer on the catalyst surface is proven to mitigate chloride ion corrosion, thereby improving the stability of the catalyst in harsh marine conditions. In natural seawater, the HEA-NFCCM/Ti@S catalyst maintains 94.9 % of its initial current density, respectively, after continuous operation at a current density of 10 mA cm(-2) for 400 h, indicating its remarkable durability and potential for large-scale application. This research contributes to the advancement of anode catalysts for natural seawater electrolysis by combining corrosion resistance with catalytic performance, offering a significant step towards the efficient and sustainable production of hydrogen from seawater resources. |
| WOS关键词 | ALKALINE ; METAL ; ELECTROCATALYSTS |
| 资助项目 | National Natural Science Foundation of China[42376208] ; Science & Tech-nology Program of Nantong[JC2023083] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001528530800002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202586]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Qi, Peng; Xie, Guangwen; Wang, Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bian, Haowei,Qi, Peng,Xie, Guangwen,et al. Advanced high-entropy alloy catalysts for robust and efficient natural seawater splitting[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2025,154:9. |
| APA | Bian, Haowei,Qi, Peng,Xie, Guangwen,Liu, Xin,Zeng, Yan,&Wang, Peng.(2025).Advanced high-entropy alloy catalysts for robust and efficient natural seawater splitting.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,154,9. |
| MLA | Bian, Haowei,et al."Advanced high-entropy alloy catalysts for robust and efficient natural seawater splitting".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 154(2025):9. |
入库方式： OAI收割
来源：海洋研究所
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