Catalytic micropumps: Microscopic convective fluid flow and pattern formation

被引：143

作者：

Kline, TR

Paxton, WF

Wang, Y

Velegol, D ^{[1
]}

Mallouk, TE

Sen, A

机构：

[1] Penn State Univ, Dept Chem Engn, Mat Res Inst, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[3] Penn State Univ, Ctr Nanoscale Sci, University Pk, PA 16802 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 49期

关键词：

D O I：

10.1021/ja056069u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As innovations continue to be made in the fields of microfluidics and the colloidal assembly, new strategies for moving particles and fluids may be needed. Heterogeneous catalysis provides means of locally converting the stored chemical energy of fuels to mechanical energy. We report an ambient temperature stationary pump" that generates a proton concentration gradient through the bipolar electrochemical decomposition of hydrogen peroxide on patterned silver-gold surfaces. The resulting electric field drives convective fluid flow and pattern formation of colloidal tracer particles at the microscopic level by a combination of electroosmotic and electrophoretic forces. Copyright © 2005 American Chemical Society."

引用

页码：17150 / 17151

页数：2

共 16 条

[1]

ANDERSON JL, 1989, ANNU REV FLUID MECH, V21, P61

[2]

BARD AJ, ELECTROCHEMICAL METH, P139

[3]

BENARD H, 1900, GEN SCI PURE APPLLIQ, V11, P1261

[4] Directed rotational motion of microscale objects using interfacial tension gradients continually generated via catalytic reactions [J].