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 ]
2019
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume297Issue:2Pages:539-544
Abstract

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.

KeywordOMC Unprotected Pt clusters ORR Electrocatalysis
DOI10.1016/j.electacta.2018.12.017
Indexed BySCI
WOS IDWOS:000455642500060
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5663
Collection中国科学院特殊环境功能材料与器件重点试验室
Affiliation1.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
Recommended Citation
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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