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Hierarchically Porous M–N–C (M = Co and Fe) Single-Atom Electrocatalysts with Robust MNx Active Moieties Enable Enhanced ORR Performance

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成果类型:
期刊论文
作者:
Zhu, Chengzhou*;Shi, Qiurong;Xu, Bo Z.;Fu, Shaofang;Wan, Gang;...
通讯作者:
Zhu, Chengzhou;Lin, Yuehe;Su, Dong
作者机构:
[Zhu, Chengzhou; Song, Junhua; Du, Dan; Lin, Yuehe; Fu, Shaofang; Shi, Qiurong; Beckman, Scott P.; Zhu, CZ; Lin, YH] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA.
[Zhu, Chengzhou; Du, Dan] Cent China Normal Univ, Coll Chem, Wuhan 430079, Hubei, Peoples R China.
[Xu, Bo Z.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Wan, Gang] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Yang, Ce] Argonne Natl Lab, Chem Sci & Engn, Argonne, IL 60439 USA.
通讯机构:
[Zhu, CZ; Lin, YH] W
[Su, Dong] B
Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA.
Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
语种:
英文
关键词:
M–N–C catalysts;nonprecious metal catalysts;oxygen reduction reaction;porous nanostructures;single-atom catalysts
期刊:
Advanced Energy Materials
ISSN:
1614-6832
年:
2018
卷:
8
期:
29
页码:
1801956-
基金类别:
C.Z. and Q.S. contributed equally to this work. This work was supported by a start-up fund of Washington State University, USA. The authors acknowledge Franceschi Microscopy and Image Center at Washington State University for TEM measurements. Part of electron microscopy work used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. This research used resources of the Advanced Photon Source user facilities were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
机构署名:
本校为其他机构
院系归属:
化学学院
摘要:
The great interest in fuel cells inspires a substantial amount of research on nonprecious metal catalysts as alternatives to Pt-based oxygen reduction reaction (ORR) electrocatalysts. In this work, bimodal template-based synthesis strategies are proposed for the scalable preparation of hierarchically porous M–N–C (M = Fe or Co) single-atom electrocatalysts featured with active and robust MN2 active moieties. Multiscale tuning of M–N–C catalysts regarding increasing the number of active sites and boosting the intrinsic activity of each activ...

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