Gradient-Concentration Design of Stable Core-Shell Nanostructure for Acidic Oxygen Reduction Electrocatalysis

被引:107
作者
Lyu, Xiao [1 ,2 ,3 ]
Jia, Yi [2 ,3 ]
Mao, Xin [4 ]
Li, Daohao [5 ,6 ]
Li, Gen [1 ]
Zhuang, Linzhou [7 ]
Wang, Xin [2 ,3 ]
Yang, Dongjiang [6 ]
Wang, Qiang [8 ]
Du, Aijun [4 ]
Yao, Xiangdong [2 ,3 ,5 ]
机构
[1] Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China
[2] Griffith Univ, Queensland Micro & Nanotechnol Ctr, Brisbane, Qld 4111, Australia
[3] Griffith Univ, Sch Nat Sci, Brisbane, Qld 4111, Australia
[4] Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld 4000, Australia
[5] Jilin Univ, Coll Chem, State Key Lab Inorgan Chem & Preparat Chem, Changchun 130012, Peoples R China
[6] Qingdao Univ, Sch Environm Sci & Engn, Qingdao 266071, Peoples R China
[7] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia
[8] Northeastern Univ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Peoples R China
基金
澳大利亚研究理事会; 中国国家自然科学基金;
关键词
electrocatalysts; gradient materials; oxygen reduction reaction; Pt-Ni; surface defects; ONE-POT SYNTHESIS; ELECTRONIC-STRUCTURE; SURFACE SCIENCE; PERFORMANCE; NANOPARTICLES; NANOFRAMES; NANOCATALYSTS; CATALYSTS; SKIN;
D O I
10.1002/adma.202003493
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Manipulating the surface structure of electrocatalysts at the atomic level is of primary importance to simultaneously achieve the activity and stability dual-criteria in oxygen reduction reaction (ORR) for proton exchange membrane fuel cells. Here, a durable acidic ORR electrocatalyst with the "defective-armored" structure of Pt shell and Pt-Ni core nanoparticle decorated on graphene (Pt-Ni@Pt-D/G) using a facile and controllable galvanic replacement reaction to generate gradient distribution of Pt-Ni composition from surface to interior, followed by a partial dealloying approach, leaching the minor nickel atoms on the surface to generate defective Pt skeleton shell, is reported. The Pt-Ni@Pt-D/G catalyst shows impressive performance for ORR in acidic (0.1mHClO(4)) electrolyte, with a high mass activity of threefold higher than that of Pt/C catalyst owing to the tuned electronic structure of locally concave Pt surface sites through synergetic contributions of Pt-Ni core and defective Pt shell. More importantly, the electrochemically active surface areas still retain 96% after 20 & x202f;000 potential cycles, attributing to the Pt atomic shell acting as the protective "armor" to prevent interior Ni atoms from further dissolution during the long-term operation.
引用
收藏
页数:7
相关论文
共 43 条
[1]   Finding optimal surface sites on heterogeneous catalysts by counting nearest neighbors [J].
Calle-Vallejo, Federico ;
Tymoczko, Jakub ;
Colic, Viktor ;
Vu, Quang Huy ;
Pohl, Marcus D. ;
Morgenstern, Karina ;
Loffreda, David ;
Sautet, Philippe ;
Schuhmann, Wolfgang ;
Bandarenka, Aliaksandr S. .
SCIENCE, 2015, 350 (6257) :185-189
[2]   Platinum-nickel nanowire catalysts with composition-tunable alloying and faceting for the oxygen reduction reaction [J].
Chang, Fangfang ;
Yu, Gang ;
Shan, Shiyao ;
Skeete, Zakiya ;
Wu, Jinfang ;
Luo, Jin ;
Ren, Yang ;
Petkov, Valeri ;
Zhong, Chuan-Jian .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (24) :12557-12568
[3]   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
[4]   Ni-Pt Core-Shell Nanoparticles as Oxygen Reduction Electrocatalysts: Effect of Pt Shell Coverage [J].
Chen, Yumei ;
Liang, Zhixiu ;
Yang, Fan ;
Liu, Yuwen ;
Chen, Shengli .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (49) :24073-24079
[5]   Strain Engineering to Enhance the Electrooxidation Performance of Atomic-Layer Pt on Intermetallic Pt3Ga [J].
Feng, Quanchen ;
Zhao, Shu ;
He, Dongsheng ;
Tian, Shubo ;
Gu, Lin ;
Wen, Xiaodong ;
Chen, Chen ;
Peng, Qing ;
Wang, Dingsheng ;
Li, Yadong .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2018, 140 (08) :2773-2776
[6]   Pt skin coated hollow Ag-Pt bimetallic nanoparticles with high catalytic activity for oxygen reduction reaction [J].
Fu, Tao ;
Huang, Jianxing ;
Lai, Shaobo ;
Zhang, Size ;
Fang, Jun ;
Zhao, Jinbao .
JOURNAL OF POWER SOURCES, 2017, 365 :17-25
[7]   One-pot synthesis of dendritic Pt3Ni nanoalloys as nonenzymatic electrochemical biosensors with high sensitivity and selectivity for dopamine detection [J].
Gao, Ge ;
Zhang, Zongkui ;
Wang, Kai ;
Yuan, Qiang ;
Wang, Xun .
NANOSCALE, 2017, 9 (31) :10998-11003
[8]  
Hammer B, 2000, ADV CATAL, V45, P71
[9]   High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction [J].
Huang, Xiaoqing ;
Zhao, Zipeng ;
Cao, Liang ;
Chen, Yu ;
Zhu, Enbo ;
Lin, Zhaoyang ;
Li, Mufan ;
Yan, Aiming ;
Zettl, Alex ;
Wang, Y. Morris ;
Duan, Xiangfeng ;
Mueller, Tim ;
Huang, Yu .
SCIENCE, 2015, 348 (6240) :1230-1234
[10]   A Facile Strategy to Pt3Ni Nanocrystals with Highly Porous Features as an Enhanced Oxygen Reduction Reaction Catalyst [J].
Huang, Xiaoqing ;
Zhu, Enbo ;
Chen, Yu ;
Li, Yongjia ;
Chiu, Chin-Yi ;
Xu, Yuxi ;
Lin, Zhaoyang ;
Duan, Xiangfeng ;
Huang, Yu .
ADVANCED MATERIALS, 2013, 25 (21) :2974-2979