Synthesis of bare Pt3Ni nanorods from PtNi@Ni core-shell nanorods by acid etching: one-step surfactant removal and phase conversion for optimal electrochemical performance toward oxygen reduction reaction

被引：19

作者：

Yoon, Jisun ^{[2
,3
]}

Park, Jongsik ^{[1
,2
,3
]}

Sa, Young Jin ^{[4
]}

Yang, Yoojin ^{[2
,3
]}

Baik, Hionsuck ^{[5
]}

Joo, Sang Hoon ^{[4
,6
]}

Lee, Kwangyeol ^{[1
,2
,3
]}

机构：

[1] Inst for Basic Sci Korea, Ctr Mol Spect & Dynam, Seoul 02841, South Korea

[2] Korea Univ, Dept Chem, Seoul 02841, South Korea

[3] Korea Univ, Res Inst Nat Sci, Seoul 02841, South Korea

[4] Ulsan Natl Inst Sci & Technol, Dept Chem, Ulsan 44919, South Korea

[5] Korea Basic Sci Inst, Seoul 02841, South Korea

[6] Ulsan Natl Inst Sci & Technol, Sch Energy & Chem Engn, Ulsan 44919, South Korea

来源：

CRYSTENGCOMM | 2016年 / 18卷 / 32期

关键词：

PLATINUM ALLOY NANOCRYSTALS; FUEL-CELLS; NANOPARTICLE CATALYSTS; ELECTROCATALYSTS; SEGREGATION; SELECTIVITY; CHALLENGES; STRATEGY; METAL;

D O I：

10.1039/c6ce00830e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pt-Ni alloy, most notably Pt3Ni phase, nanoparticles synthesized using a surfactant-assisted solution phase route have shown great promise as electrocatalysts toward the oxygen reduction reaction (ORR) for fuel cells. Surfactant removal without deteriorating the catalytic performance of alloy nanocrystals has been an ongoing issue in this research area. Herein, we report a convenient preparation route to surfactant-free Pt3Ni nanorods from PtNi@Ni nanorods assisted by acid etching as well as their excellent electrocatalytic activity for ORR.

引用

页码：6002 / 6007

页数：6