Highly efficient submonolayer Pt-decorated Au nano-catalysts for formic acid oxidation

被引:234
作者
Kristian, Noel [1 ]
Yan, Yushan [2 ,3 ]
Wang, Xin [1 ]
机构
[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
[2] Univ Calif Riverside, Coll Engn, Ctr Environm Res & Technol, Riverside, CA 92521 USA
[3] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA
关键词
D O I
10.1039/b714230g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel structure of catalyst, submonolayer Pt-decorated Au, has been synthesized with minimal use of Pt and shows markedly improved activity toward formic acid oxidation where it facilitates the direct oxidation of formic acid by suppressing the formation of poisonous species COads via the "ensemble'' effect.
引用
收藏
页码:353 / 355
页数:3
相关论文
共 28 条
[1]   Formic acid oxidation on ultrathin Pd films on Au(hkl) and Pt(hkl) electrodes [J].
Baldauf, M ;
Kolb, DM .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (27) :11375-11381
[2]   OXIDATION OF FORMIC-ACID AT NOBLE-METAL ELECTRODES PART .3. INTERMEDIATES AND MECHANISM ON PLATINUM-ELECTRODES [J].
CAPON, A ;
PARSONS, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1973, 45 (02) :205-231
[3]   OXIDATION OF FORMIC-ACID ON NOBLE-METAL ELECTRODES .2. COMPARISON OF BEHAVIOR OF PURE ELECTRODES [J].
CAPON, A ;
PARSONS, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1973, 44 (02) :239-254
[4]   OXIDATION OF FORMIC-ACID AT NOBLE-METAL ELECTRODES .1. REVIEW OF PREVIOUS WORK [J].
CAPON, A ;
PARSONS, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1973, 44 (01) :1-7
[5]  
CHANG SC, 1990, J PHYS CHEM-US, V3016, P94
[6]   Electro-oxidation of formic acid catalyzed by FePt nanoparticles [J].
Chen, Wei ;
Kim, Jaemin ;
Sun, Shouheng ;
Chen, Shaowei .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (23) :2779-2786
[7]   Size dependence of the CO monolayer oxidation on nanosized Pt particles supported on gold [J].
Friedrich, KA ;
Henglein, F ;
Stimming, U ;
Unkauf, W .
ELECTROCHIMICA ACTA, 2000, 45 (20) :3283-3293
[8]   Two-dimensional arrays of colloidal gold particles: A flexible approach to macroscopic metal surfaces [J].
Grabar, KC ;
Allison, KJ ;
Baker, BE ;
Bright, RM ;
Brown, KR ;
Freeman, RG ;
Fox, AP ;
Keating, CD ;
Musick, MD ;
Natan, MJ .
LANGMUIR, 1996, 12 (10) :2353-2361
[9]   Ultrasonic synthesis and optical properties of Au/Pd bimetallic nanoparticles in ethylene glycol [J].
Kan, CX ;
Cai, WP ;
Li, CC ;
Zhang, LD ;
Hofmeister, H .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2003, 36 (13) :1609-1614
[10]   Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy [J].
Leng, YJ ;
Wang, X ;
Hsing, IM .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 528 (1-2) :145-152