Combing strong metal support interaction and N doping to improve the durability of 3D carbon nanosheets supported Pt catalyst

被引：8
作者：
Niu, Fuquan [1 ,2 ,3 ]
Gao, Rongzhen [2 ,3 ]
Wan, Xiaoqi [2 ,3 ]
Su, Keke [2 ,3 ]
Yue, Hongyun [2 ,3 ]
Dong, Hongyu [2 ,3 ]
Cao, Zhaoxia [2 ,3 ]
Yin, Yanhong [2 ,3 ]
Yang, Shuting [1 ,2 ,3 ]
机构：
[1] Henan Normal Univ, Sch Phys, Xinxiang 453007, Henan, Peoples R China
[2] Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China
[3] Natl & Local Joint Engn Lab Mot Power & Key Mat, Xinxiang 453007, Henan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 58期
关键词：
Oxygen reduction; Pt catalyst; N-doped carbon nanosheets; MgFe2O4; OXYGEN REDUCTION REACTION; ONE-POT SYNTHESIS; POROUS CARBON; HIGHLY EFFICIENT; BIFUNCTIONAL ELECTROCATALYST; NITROGEN; NANOPARTICLES; STABILITY; ANODE; FABRICATION;
D O I：
10.1016/j.ijhydene.2020.09.102
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, for the first time, MgFe2O4 (MFO) is used to stabilize the N-doped 3D carbon nanosheets supported platinum catalysts (Pt/MFO/NPC). The spherical MFO nanoparticles are randomly dispersed on the surface of the 3D carbon nanosheets, with Pt particles uniformly distributed on them. The Pt/MFO/NPC catalyst possesses excellent stability and methanol tolerance in alkaline solution. The current retention reaches 87.0% after 20,000 s of stability test, which is significantly higher than that of commercial Pt/C (46.9%). In addition, the onset potential (E-onset) and half-wave potential (E-1/2) values of Pt/MFO/NPC are larger than that of the commercial contrast, implying the improved kinetics of the Oxygen reduction reaction (ORR). The excellent catalytic activity and stability of Pt/MFO/NPC can be attributed to the combined effect of N-doping and strong metal-support interaction (SMSI) between MFO and Pt. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：33521 / 33531
页数：11
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