Promoting effects of La for improved oxygen reduction activity and high stability of Pt on Pt-La alloy electrodes

被引：81

作者：

Yoo, Sung Jong ^{[1
]}

Hwang, Seung Jun ^{[1
]}

Lee, June-Gunn ^{[2
]}

Lee, Seung-Cheol ^{[2
]}

Lim, Tae-Hoon ^{[1
]}

Sung, Yung-Eun ^{[3
]}

Wieckowski, Andrzej ^{[4
]}

Kim, Soo-Kil ^{[5
]}

机构：

[1] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South Korea

[2] Korea Inst Sci & Technol, Computat Sci Ctr, Seoul 136791, South Korea

[3] Seoul Natl Univ, World Class Univ Program Chem Convergence Energy, Sch Chem & Biol Engn, Seoul 151742, South Korea

[4] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[5] Chung Ang Univ, Sch Integrat Engn, Seoul 156756, South Korea

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

DENSITY-FUNCTIONAL THEORY; SURFACE ALLOYS; TRENDS; ELECTROCATALYSTS; DISSOLUTION; PLATINUM; CATALYST; METAL; REACTIVITY; PALLADIUM;

D O I：

10.1039/c2ee02691k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The design of polymer electrolyte fuel cell electrocatalysts depends on two equally important fundamental principles: the optimization of electrocatalytic activities as well as the long-term stability under operating conditions (e.g., pH < 1 and E > 0.8 V). Pt-based alloys with transition metals (i.e., Pt-La) address both of these key issues. The oxygen reduction kinetics depends on the alloy composition which, in turn, is related to the d-band center position. The stability of the oxygen reduction reaction is predictable by correlation of the d-band fillings and vacancies of Pt-M (M = Ti, Fe, Zr and La).

引用

页码：7521 / 7525

页数：5

共 50 条

[1] Nanosized Pt-La alloy electrocatalysts with high activity and stability for the oxygen reduction reaction
Yoo, Sung Jong
Sung, Yung-Eun
SURFACE SCIENCE, 2015, 631 : 272 - 277
[2] Enhanced activity and stability of Pt-La and Pt-Ce alloys for oxygen electroreduction: the elucidation of the active surface phase
Malacrida, Paolo
Escudero-Escribano, Maria
Verdaguer-Casadevall, Arnau
Stephens, Ifan E. L.
Chorkendorff, Ib
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (12) : 4234 - 4243
[3] High stability, high activity Pt/ITO oxygen reduction electrocatalysts
Mustain, W.E. (mustain@engr.uconn.edu), 1600, American Chemical Society (135):
[4] High Stability, High Activity Pt/ITO Oxygen Reduction Electrocatalysts
Liu, Ying
Mustain, William E.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (02) : 530 - 533
[5] Temperature dependence of oxygen reduction activity at Pt-Fe, Pt-Co, and Pt-Ni alloy electrodes
Wakabayashi, N
Takeichi, M
Uchida, H
Watanabe, M
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (12): : 5836 - 5841
[6] The role of Pt valence state and La doping on titanium supported Pt-La/ TiO2 catalyst for selective catalytic reduction with H2
Kim, Geo Jong
Shin, Jung Hun
Kim, Su Bin
Hong, Sung Chang
APPLIED SURFACE SCIENCE, 2023, 608
[7] Enhanced stability and activity of Pt-Y alloy catalysts for electrocatalytic oxygen reduction
Yoo, Sung Jong
Kim, Soo-Kil
Jeon, Tae-Yeol
Hwang, Seung Jun
Lee, June-Gunn
Lee, Seung-Cheol
Lee, Kug-Seung
Cho, Yong-Hun
Sung, Yung-Eun
Lim, Tae-Hoon
CHEMICAL COMMUNICATIONS, 2011, 47 (41) : 11414 - 11416
[8] Titanium Oxynitride Interlayer to Influence Oxygen Reduction Reaction Activity and Corrosion Stability of Pt and Pt-Ni Alloy
Tan, XueHai
Wang, Liya
Zahiri, Beniamin
Kohandehghan, Alireza
Karpuzov, Dimitre
Lotfabad, Elmira Memarzadeh
Li, Zhi
Eikerling, Michael H.
Mitlin, David
CHEMSUSCHEM, 2015, 8 (02) : 361 - 376
[9] The Influence of Pt Oxide Film on the Activity for the Oxygen Reduction Reaction on Pt Single Crystal Electrodes
Tanaka, Hiroyuki
Nagahara, Yoshiki
Sugawara, Seiho
Shinohara, Kazuhiko
Nakamura, Masashi
Hoshi, Nagahiro
ELECTROCATALYSIS, 2014, 5 (04) : 354 - 360
[10] The Influence of Pt Oxide Film on the Activity for the Oxygen Reduction Reaction on Pt Single Crystal Electrodes
Hiroyuki Tanaka
Yoshiki Nagahara
Seiho Sugawara
Kazuhiko Shinohara
Masashi Nakamura
Nagahiro Hoshi
Electrocatalysis, 2014, 5 : 354 - 360

← 1 2 3 4 5 →