Formation of nanoporous platinum by selective anodic dissolution of PtZn surface alloy in a Lewis acidic zinc chloride-1-ethyl-3-methylimidazolium chloride ionic liquid

被引:93
作者
Huang, JF [1 ]
Sun, IW [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Chem, Tainan 70101, Taiwan
关键词
D O I
10.1021/cm030462m
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A simple electrochemical strategy is described to prepare high surface area nanostructured platinum electrode by alloying and de-alloying of PtZn in a Lewis acidic ZnCl2-1-ethyl-3-methylimidazolium chloride ionic liquid. The resulting Pt electrode showed significantly enhanced current for hydrogen and methanol redox reactions, due to the increased surface area.
引用
收藏
页码:1829 / 1831
页数:3
相关论文
共 19 条
[11]   Ordered nanoporous arrays of carbon supporting high dispersions of platinum nanoparticles [J].
Joo, SH ;
Choi, SJ ;
Oh, I ;
Kwak, J ;
Liu, Z ;
Terasaki, O ;
Ryoo, R .
NATURE, 2001, 412 (6843) :169-172
[12]   Electrodeposition of zinc telluride from a zinc chloride-1-ethyl-3-methylimidazolium chloride molten salt [J].
Lin, MC ;
Chen, PY ;
Sun, IW .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (10) :C653-C658
[13]   Alloy corrosion [J].
Newman, RC ;
Corcoran, SG ;
Erlebacher, J ;
Aziz, MJ ;
Sieradzki, K .
MRS BULLETIN, 1999, 24 (07) :24-28
[14]  
PARSONS R, 1988, J ELECTROANAL CHEM, V9, P257
[15]   Formation of nanoporous platinum by selective dissolution of Cu from Cu0.75Pt0.25 [J].
Pugh, DV ;
Dursun, A ;
Corcoran, SG .
JOURNAL OF MATERIALS RESEARCH, 2003, 18 (01) :216-221
[16]   Materials - A class of porous metallic nanostructures [J].
Velev, OD ;
Tessier, PM ;
Lenhoff, AM ;
Kaler, EW .
NATURE, 1999, 401 (6753) :548-548
[17]   Proton adsorption and electrical double-layer formation inside charged platinum nanochannels [J].
Yang, KL ;
Yiacoumi, S ;
Tsouris, C .
NANO LETTERS, 2002, 2 (12) :1433-1437
[18]   Characterization of platinum nanoparticle-embedded carbon film electrode and its detection of hydrogen peroxide [J].
You, TY ;
Niwa, O ;
Tomita, M ;
Hirono, S .
ANALYTICAL CHEMISTRY, 2003, 75 (09) :2080-2085
[19]   Electrodeposition of silver aluminum alloys from a room-temperature chloroaluminate molten salt [J].
Zhu, Q ;
Hussey, CL ;
Stafford, GR .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (02) :C88-C94