Synthesis of platinum single-crystal nanoparticles in water vapor

被引：3

作者：

Cheng, Ting ^{[1
]}

Parish, Chad M. ^{[1
]}

More, Karren L. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 10期

关键词：

Platinum; Water vapor; HIGH-TEMPERATURE;

D O I：

10.1007/s10853-013-7184-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Platinum (Pt) nanoparticles have broad application in automobile pollution control, sensors, and fuel cells. Single-crystal platinum particles over the range of nano- to micron-meters were synthesized at the Pt/SiC interface in high pressure water vapor at 1200 A degrees C. These particles exhibited a cube-octahedral shape with predominant (111) facets. Formation of the Pt particles is likely due to water vapor-facilitated oxidation of the platinum silicide, resulting from the interaction between SiC and Pt. Well-aligned Pt single-crystal particles with sizes of tens to hundreds nanometers were obtained on the surface of arc-melted Pt2Si after exposure in flowing water vapor (90 cm/min) at 1200 A degrees C for 5 min. The potential applications of this finding are discussed.

引用

页码：3834 / 3840

页数：7

共 16 条

[11] PLATINUM SILICIDE FORMATION USING RAPID THERMAL-PROCESSING [J].

NAEM, AA .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (08) :4161-4167

[12] Effect of the precursor and reduction methods on the synthesis of supported Pt nanostructures in zeolite mordenite [J].

Quinones, Leonel ;

Martinez-Inesta, Maria M. .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (22) :7289-7297

[13] Decoration of single-walled carbon nanotubes with Pt nanoparticles from an organometallic precursor [J].

Ramirez-Meneses, E. ;

Montiel-Palma, V. ;

Chavez-Herrera, V. H. ;

Reyes-Gasga, J. .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (10) :3597-3603

[14] Size control of Pt nanoparticles with stabilizing agent for better utilization of the catalyst in fuel cell reaction [J].

Singh, S. ;

Datta, J. .

JOURNAL OF MATERIALS SCIENCE, 2010, 45 (11) :3030-3040

[15] Synthesis of tetrahexahedral platinum nanocrystals with high-index facets and high electro-oxidation activity [J].

Tian, Na ;

Zhou, Zhi-You ;

Sun, Shi-Gang ;

Ding, Yong ;

Wang, Zhong Lin .

SCIENCE, 2007, 316 (5825) :732-735

[16] Thermodynamic assessment of the Pt-Si binary system [J].

Xu, L. L. ;

Wang, J. ;

Liu, H. S. ;

Jin, Z. P. .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2008, 32 (01) :101-105

← 1 2 →