Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions
文献类型：期刊论文
| ; | |
| 作者 | Wang, Xiaolu; Xiao, Hai; Li, Ang; Li, Zhi; Liu, Shoujie; Zhang, Qinghua; Gong, Yue; Zheng, Lirong ; Zhu, Youqi; Chen, Chen
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| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 ; JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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| 出版日期 | 2018 ; 2018 |
| 卷号 | 140期号:45页码:15336-15341 |
| ISSN号 | 0002-7863 ; 0002-7863 |
| DOI | 10.1021/jacs.8b08744 ; 10.1021/jacs.8b08744 |
| 文献子类 | Article ; Article |
| 英文摘要 | Metal-organic frameworks (MOF) have recently emerged as versatile precursors to fabricate functional MOF derivatives for oxygen evolution reactions (OER). Herein, we developed a controlled partial pyrolysis strategy to construct robust NiCo/Fe3O4 heteroparticles within MOF-74 for efficient OER using trimetallic NiCoFe-MOF-74 as precursor. The partial pyrolysis method preserves the framework structure of MOF for effective substrates diffusion while producing highly active nanoparticles. The as-prepared NiCo/Fe3O4/MOF-74 delivered remarkably stable OER current with an overpotential as low as 238 mV at 10.0 mA cm(-2) and an Tafel slop of 29 mV/dec, outperforming those of pristine NiCoFe-MOF-74, totally decomposed MOF derivatives, and most reported non-noble metal based electrocatalysts. The key for the formation of NiCo/Fe3O4/MOF-74 nanostructures is that the metals can be decomposed from NiCoFe-MOF-74 in the order of Ni, Co, and Fe under controlled heat treatment. Density functional theory calculations reveals that the underlying NiCo promotes the OER activity of Fe3O4 through exchange stabilization of active oxygen species.; Metal-organic frameworks (MOF) have recently emerged as versatile precursors to fabricate functional MOF derivatives for oxygen evolution reactions (OER). Herein, we developed a controlled partial pyrolysis strategy to construct robust NiCo/Fe3O4 heteroparticles within MOF-74 for efficient OER using trimetallic NiCoFe-MOF-74 as precursor. The partial pyrolysis method preserves the framework structure of MOF for effective substrates diffusion while producing highly active nanoparticles. The as-prepared NiCo/Fe3O4/MOF-74 delivered remarkably stable OER current with an overpotential as low as 238 mV at 10.0 mA cm(-2) and an Tafel slop of 29 mV/dec, outperforming those of pristine NiCoFe-MOF-74, totally decomposed MOF derivatives, and most reported non-noble metal based electrocatalysts. The key for the formation of NiCo/Fe3O4/MOF-74 nanostructures is that the metals can be decomposed from NiCoFe-MOF-74 in the order of Ni, Co, and Fe under controlled heat treatment. Density functional theory calculations reveals that the underlying NiCo promotes the OER activity of Fe3O4 through exchange stabilization of active oxygen species. |
| WOS关键词 | METAL-ORGANIC FRAMEWORKS ; METAL-ORGANIC FRAMEWORKS ; NANOSTRUCTURES ; NANOPARTICLES ; CATALYSTS ; ARRAYS ; NANOSTRUCTURES ; NANOPARTICLES ; CATALYSTS ; ARRAYS |
| WOS研究方向 | Chemistry ; Chemistry |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000451100600029 ; WOS:000451100600029 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286875]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_多学科研究中心 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Xiaolu,Xiao, Hai,Li, Ang,et al. Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions, Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2018, 2018,140, 140(45):15336-15341, 15336-15341. |
| APA | Wang, Xiaolu.,Xiao, Hai.,Li, Ang.,Li, Zhi.,Liu, Shoujie.,...&郑黎荣.(2018).Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,140(45),15336-15341. |
| MLA | Wang, Xiaolu,et al."Constructing NiCo/Fe3O4 Heteroparticles within MOF-74 for Efficient Oxygen Evolution Reactions".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140.45(2018):15336-15341. |
入库方式： OAI收割
来源：高能物理研究所
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