Tungsten doped manganese silicate films as stable and efficient oxygen evolution catalysts in near-neutral media
文献类型：期刊论文
| 作者 | Zhu, Shuairu; Le, Jiabo; Li, Jianming; Liu, Deyu; Kuang, Yongbo |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2021 |
| 卷号 | 9期号:33页码:17893-17904 |
| 关键词 | WATER OXIDATION CARBON NANOTUBES GRAPHENE OXIDE ELECTROCATALYST PERFORMANCE STABILITY LITHIUM PH NANOPARTICLES ORIGIN |
| 英文摘要 | Efficient, stable and cost-effective oxygen evolution catalysts (OECs) operating in near-neutral or weak acid media have highly practical applications in electrochemical (EC) and photoelectrochemical (PEC) fields. However, conventional catalysts are mostly based on precious metals, while those based on earth-abundant elements that are efficient in alkaline solution generally suffer from dissolution in such media. Herein, we show that novel manganese silicate-based film materials prepared from thermal vapor deposition and a subsequent microwave reaction can act as potential oxygen evolution reaction (OER) catalysts in near-neutral media. Pristine manganese silicate displays excellent intrinsic catalytic activity. With W doping, the catalysts exhibit remarkably better apparent catalytic activity as it leads to the exposure of more active sites without impairing the bulk conductivity. W doping also serves to significantly adjust the elementary valence states of Mn and enrich the surface hydroxyl groups, resulting in much improved stability. DFT calculations reveal that the theoretical overpotential of manganese silicate is comparable to that of other reported manganese oxide OER catalysts. These results demonstrate manganese silicates as a new class of OECs for stable water splitting in near-neutral media. They also illustrate a new pathway of improving stability in near-neutral media by introducing high-valency metal elements for the design of nonprecious OEC. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21730]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Kuang, YB (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China. 2.Liu, DY 3.Kuang, YB (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhu, Shuairu,Le, Jiabo,Li, Jianming,et al. Tungsten doped manganese silicate films as stable and efficient oxygen evolution catalysts in near-neutral media[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(33):17893-17904. |
| APA | Zhu, Shuairu,Le, Jiabo,Li, Jianming,Liu, Deyu,&Kuang, Yongbo.(2021).Tungsten doped manganese silicate films as stable and efficient oxygen evolution catalysts in near-neutral media.JOURNAL OF MATERIALS CHEMISTRY A,9(33),17893-17904. |
| MLA | Zhu, Shuairu,et al."Tungsten doped manganese silicate films as stable and efficient oxygen evolution catalysts in near-neutral media".JOURNAL OF MATERIALS CHEMISTRY A 9.33(2021):17893-17904. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。