In-situ reaction-growth of PtNiX nanocrystals on supports for enhanced electrochemical catalytic oxidation of ethanol via continuous flow microfluidic process

被引：11
作者：
Wang, Junmei
Ye, Huanyu
Song, Yujun [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Math & Phys, Ctr Modern Phys Technol, Beijing 100083, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2018年 / 278卷
关键词：
Pt-based electrocatalysts; Ethanol electro-oxidation; Microfluidic; In-situ reaction; Ultra-small nanocrystal; OXYGEN REDUCTION REACTION; HIGH-PERFORMANCE; ELECTROCATALYTIC ACTIVITY; PLATINUM; NANOPARTICLES; ELECTROOXIDATION; METAL; CARBON; NANOCATALYSTS; CONSEQUENCES;
D O I：
10.1016/j.electacta.2018.05.013
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
An in-situ composite methodology was first proposed to prepare carbon supported PtNix (X = 1, 3, 1/3) via online reaction, nucleation and growth of nanocrystals (NCs) on carbon support along the microfluidic channel. Uniform dispersed ultra-small PtNiX NCs (1 nm(-3) nm) with high surface exposed Pt atoms and enhanced nanocrystal-carbon interface interaction can be constructed. The annealed nanocomposites with a Pt/Ni ratio of 1/3 exhibit a mass catalytic activity of 7.6 times higher than the commercial Pt/C nanocatalysts in the ethanol oxidation reaction. The chronoamperometry measurement indicates that their mass activity still retains 3.6 times of the commercial Pt/C nanocatalysts at 4000 s. Moreover, PtNi3/C nanocatalysts have the highest tolerance to CO poisoning according to CO stripping measurements. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：149 / 155
页数：7
相关论文
共 52 条
[1]   Beneficial Role of Copper in the Enhancement of Durability of Ordered Intermetallic PtFeCu Catalyst for Electrocatalytic Oxygen Reduction [J].
Arumugam, Balamurugan ;
Tamaki, Takanori ;
Yamaguchi, Takeo .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (30) :16311-16321
[2]   Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis [J].
Bu, Lingzheng ;
Guo, Shaojun ;
Zhang, Xu ;
Shen, Xuan ;
Su, Dong ;
Lu, Gang ;
Zhu, Xing ;
Yao, Jianlin ;
Guo, Jun ;
Huang, Xiaoqing .
NATURE COMMUNICATIONS, 2016, 7
[3]   Anchored metal nanoparticles: Effects of support and size on their energy, sintering resistance and reactivity [J].
Campbell, Charles T. ;
Sellers, Jason R. V. .
FARADAY DISCUSSIONS, 2013, 162 :9-30
[4]   Control of Metal Nanocrystal Size Reveals Metal-Support Interface Role for Ceria Catalysts [J].
Cargnello, Matteo ;
Doan-Nguyen, Vicky V. T. ;
Gordon, Thomas R. ;
Diaz, Rosa E. ;
Stach, Eric A. ;
Gorte, Raymond J. ;
Fornasiero, Paolo ;
Murray, Christopher B. .
SCIENCE, 2013, 341 (6147) :771-773
[5]   Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces [J].
Chen, Chen ;
Kang, Yijin ;
Huo, Ziyang ;
Zhu, Zhongwei ;
Huang, Wenyu ;
Xin, Huolin L. ;
Snyder, Joshua D. ;
Li, Dongguo ;
Herron, Jeffrey A. ;
Mavrikakis, Manos ;
Chi, Miaofang ;
More, Karren L. ;
Li, Yadong ;
Markovic, Nenad M. ;
Somorjai, Gabor A. ;
Yang, Peidong ;
Stamenkovic, Vojislav R. .
SCIENCE, 2014, 343 (6177) :1339-1343
[6]   Interfacial Effects in Iron-Nickel Hydroxide-Platinum Nanoparticles Enhance Catalytic Oxidation [J].
Chen, Guangxu ;
Zhao, Yun ;
Fu, Gang ;
Duchesne, Paul N. ;
Gu, Lin ;
Zheng, Yanping ;
Weng, Xuefei ;
Chen, Mingshu ;
Zhang, Peng ;
Pao, Chih-Wen ;
Lee, Jyh-Fu ;
Zheng, Nanfeng .
SCIENCE, 2014, 344 (6183) :495-499
[7]  
Chen L., 2017, NAT COMMUN, V8
[8]   Platinum-Tin Oxide Core-Shell Catalysts for Efficient Electro-Oxidation of Ethanol [J].
Du, Wenxin ;
Yang, Guangxing ;
Wong, Emily ;
Deskins, N. Aaron ;
Frenkel, Anatoly I. ;
Su, Dong ;
Teng, Xiaowei .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (31) :10862-10865
[9]   Fine-grained and fully ordered intermetallic PtFe catalysts with largely enhanced catalytic activity and durability [J].
Du, Xin Xin ;
He, Yang ;
Wang, Xiao Xia ;
Wang, Jian Nong .
ENERGY & ENVIRONMENTAL SCIENCE, 2016, 9 (08) :2623-2632
[10]   One-step synthesis of porous bimetallic PtCu nanocrystals with high electrocatalytic activity for methanol oxidation reaction [J].
Eid, Kamel ;
Wang, Hongjing ;
He, Pei ;
Wang, Kunmiao ;
Ahamad, Tansir ;
Alshehri, Saad M. ;
Yamauchi, Yusuke ;
Wang, Liang .
NANOSCALE, 2015, 7 (40) :16860-16866
123456