Dual active site tandem catalysis of metal hydroxyl oxides and single atoms for boosting oxygen evolution reaction
文献类型：期刊论文
| 作者 | BSRF用户 |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2021 |
| 卷号 | 297页码:120451 |
| ISSN号 | 0926-3373 |
| DOI | 10.1016/j.apcatb.2021.120451 |
| 文献子类 | Article |
| 英文摘要 | The high voltage in oxygen evolution reaction (OER) often causes structural change in electrocatalysts and forms multiple active sites. Therefore, exploring the synergy of various active sites is extremely significant to develop catalysts for OER with multiple elementary steps. Herein, we adopt the physically adsorbed metal ions method to successfully synthesize a highly-efficient electrocatalyst containing the dual active sites of Fe-NiOOH and NiC4 single atoms (marked as Ni SAs/Fe-NiOOH). The Ni SAs/Fe-NiOOH displays outstanding OER performance with an overpotential of 269 mV to deliver current density of 10 mA/cm(2) that shows 55 mV superior to commercial IrO2/CB at the same condition. Experiments and density functional theory calculations indicate that the excellent OER activity of Ni SAs/Fe-NiOOH catalyst is attributed to the synergy of dual active sites of NiC4 SAs and Fe-NiOOH. A tandem catalysis mechanism is also proposed to reveal the synergism of two active centers, which makes the potential-determining step more facile and accordingly decreases the OER overpotential. This work offers a new concept of tandem catalysis to develop the electrocatalysts with many elemental steps, like OER and oxygen reduction reaction catalysts. |
| 电子版国际标准刊号 | 1873-3883 |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000697097800004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/292954]  |
| 专题 | 北京同步辐射装置 |
| 推荐引用方式 GB/T 7714 | BSRF用户. Dual active site tandem catalysis of metal hydroxyl oxides and single atoms for boosting oxygen evolution reaction[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,297:120451. |
| APA | BSRF用户.(2021).Dual active site tandem catalysis of metal hydroxyl oxides and single atoms for boosting oxygen evolution reaction.APPLIED CATALYSIS B-ENVIRONMENTAL,297,120451. |
| MLA | BSRF用户."Dual active site tandem catalysis of metal hydroxyl oxides and single atoms for boosting oxygen evolution reaction".APPLIED CATALYSIS B-ENVIRONMENTAL 297(2021):120451. |
入库方式： OAI收割
来源：高能物理研究所
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