WEKO3
アイテム
遷移金属触媒の開発及び空気亜鉛電池と水分解への応用
https://doi.org/10.18997/0002000115
https://doi.org/10.18997/000200011533ea2e07-8ae6-40ee-9f84-b5b55b17cb14
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_443.pdf (4.3 MB)
|
|
| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-09-25 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | Development of Transition Metal Catalysts and Application to Zinc-Air Battery and Water Splitting | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 遷移金属触媒の開発及び空気亜鉛電池と水分解への応用 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Huang, Huiyong
× Huang, Huiyong
|
|||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Oxygen evolution reaction (OER), oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) are important reactions in energy storage and conversion devices such as zinc-air battery and water splitting. However, the sluggish dynamics of the OER, ORR and HER decrease the final energy, which limits the commercialization of these devices. Besides, the traditional Ir/Ru and Pt-based catalysts limit their wide application due to their high price and rare reserves. This thesis focuses on designing efficient transition metal electrochemical catalysts. Firstly, the vanadium doped CoS/Co9S8 heterostructures embedded on carbon nanorods (denoted as V-CoS/Co9S8@CNR) was synthesized. The results verified that vanadium doping and interface effect were beneficial to the OER and ORR performance. Secondly, to further improve the catalytic activity, four kinds of high entropy alloys (HEAs) were synthesized. The obtained catalysts were used as the bifunctional electrocatalysts for OER and ORR. Thirdly, these alloys were applied to overall water splitting, the MnFeRuCoNiZn had a lower potential than the traditional catalyst of RuO2+Pt/C. In Chapter 1, the background and development history of OER, ORR and HER were introduced. In addition, the structure of zinc-air battery and water splitting were also described in detail. Moreover, the current challenges and the purpose of this thesis were also described. In Chapter 2, the vanadium doped CoS/Co9S8 heterostructure embedded on carbon nanorods were synthesized by a facile one-step sulfurization strategy, which was used as the OER and ORR electrocatalysts for ZABs in an alkaline medium. The obtained V-CoS/Co9S8@CNR showed an excellent OER catalytic performance (269 mV@10 mA/cm2) and comparable ORR catalytic performance. The assembled rechargeable zinc-air batteries displayed a superior performance as well as high charging-discharging cycling stability. In Chapter 3, to further improve the catalytic performance, four kinds of senary high entropy alloys (HEAs) were synthesized by a MOF-assisted strategy. Among the synthesized high entropy alloys, MnFeRuCoNiZn showed the best excellent OER catalytic performance (240 mV@10 m/cm2). Using MnFeRuCoNiZn as the air electrode catalyst for zinc-air battery, the assembled zinc-air battery showed good catalytic performance. In Chapter 4, to further understand the relationship between catalytic performance and the metal number, a series of multi-component alloys were synthesized. Among the synthesized alloys, the senary MnFeRuCoNiZn alloys showed best HER performance. Besides, for overall water splitting, MnFeRuCoNiZn alloys showed better performance than the standard RuO2+Pt/C. Finally, the general conclusions of this thesis were summarized. In this thesis, the as-prepared 3 kinds of materials exhibited good electrochemical performance in ZABs or water splitting. It would have great significance to further study the preparation of economy and efficient catalysts. |
|||||||
| 言語 | en | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1. Introduction||2. Synthesis of one-dimensional vanadium-doped CoS/Co9S8 heterojunctions as bifunctional electrocatalysts for zinc-air battery||3. Facile approach to synthesize high entropy alloy for zinc-air battery and methanol upgrading reaction||4. Facile approach to Synthesize High entropy alloy for Bifunctional Catalysis toward HER, OER and Water Splitting | |||||||
| 言語 | en | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号：生工博甲第443号 学位授与年月日：令和4年9月26日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Transition metal catalysts | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | non-precious metal catalysts | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Low content precious metal | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Zinc-Air battery | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Water splitting | |||||||
| アドバイザー | ||||||||
| 馬, 廷麗 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第443号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2022-09-26 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和4年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/0002000115 | |||||||
| ID登録タイプ | JaLC | |||||||
