Unprotected Pt nanoclusters anchored on ordered mesoporous carbon as an efficient and stable catalyst for oxygen reduction reaction | |
Liu, J (Liu, Jing)[ 1,2 ]; Wu, XX (Wu, Xiaoxia)[ 1,2 ]; Yang, LP (Yang, Liping)[ 1,2 ]; Wang, F (Wang, Fu)[ 1,3,4 ]; Yin, J (Yin, Jiao)[ 1 ] | |
刊名 | ELECTROCHIMICA ACTA |
2019 | |
卷号 | 297期号:2页码:539-544 |
关键词 | OMC Unprotected Pt clusters ORR Electrocatalysis |
ISSN号 | 0013-4686 |
DOI | 10.1016/j.electacta.2018.12.017 |
英文摘要 | Pt nanoclusters (NCs) with diameters of 1-3 nm are regarded as one of the most promising high performance oxygen reduction reaction (ORR) catalysts. However, the application of such small Pt NCs is always limited by the preparation methods and the stability of Pt. In this work, an efficient and stable ORR catalyst was prepared by assembling unprotected Pt NCs (similar to 1.4 nm) on ordered mesoporous carbon (OMC) via a facile strategy. The as-prepared Pt NCs/OMC (Pt loading: 10 wt %) exhibited more desirable ORR catalytic performance. The specific activity (SA) and mass activity (MA) of Pt NCs/OMC at 0.9 V were 2.73 and 3.81 times higher than those of the commercial Pt/C (Pt loading: 20 wt %) in 0.1 M HClO4. Meanwhile, the Pt NCs/OMC exhibited more satisfactory stability. The Pt NCs/OMC displayed relatively slight losses of 2.3% in MA and 2.7% in SA after the 1500 cycles accelerated stability test, in contrast to respective losses of 35.8% and 37.2% for the commercial Pt/C. In consideration of the enhanced catalytic performance and excellent stability, the as-prepared Pt NCs/OMC demonstrates great potential as a practical ORR catalyst. |
WOS记录号 | WOS:000455642500060 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/5663] |
专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China 4.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, J ,Wu, XX ,Yang, LP ,et al. Unprotected Pt nanoclusters anchored on ordered mesoporous carbon as an efficient and stable catalyst for oxygen reduction reaction[J]. ELECTROCHIMICA ACTA,2019,297(2):539-544. |
APA | Liu, J ,Wu, XX ,Yang, LP ,Wang, F ,&Yin, J .(2019).Unprotected Pt nanoclusters anchored on ordered mesoporous carbon as an efficient and stable catalyst for oxygen reduction reaction.ELECTROCHIMICA ACTA,297(2),539-544. |
MLA | Liu, J ,et al."Unprotected Pt nanoclusters anchored on ordered mesoporous carbon as an efficient and stable catalyst for oxygen reduction reaction".ELECTROCHIMICA ACTA 297.2(2019):539-544. |
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