Research output per year
Research output per year
Research activity per year
Electrocatalytic Induced Convective Flow
The electrochemical decomposition of hydrogen peroxide has been reported to generate interfacial fluid flow by micro-pumps , and interdigitated microelectrodes, as well as the motion of bimetallic platinum/gold nano-motors . In principle, the immersion of platinum/gold nanorods in hydrogen peroxide, triggers a series of oxidation and reduction reactions , where is oxidized at the platinum anode into protons, electrons, and oxygen molecules, while reduction takes place at the gold cathode. The resulting ionic flux generates an electric field that is coupled with the charge density, thereby inducing an electric body force that drives interfacial fluid motion.
My PhD research focuses on the study of catalytic induced concentration, its potential gradients and the generated flow. The starting platform will be based on the hydrogen peroxide oxidation and reduction at metallic catalytic sites. The initial devices will consist of bimetallic patterns, e.g. Au and Pt, with individual controlled electric potential.
Our initial numerical simulations have predicted very interesting scaling relation between the velocity, potential and the metal reactivity ratio (or Damköhler ratio) . The validity of these predictions will be further explored. Experimental measurements of local proton and hydroxyl concentrations and induced electric potential will allow the verification of these scaling relations. Further utilization efforts will be performed regarding water treatment catalysis, e.g. nitrite reduction and photocatalytic oxidation. Such aqueous based systems involve the consumption and production of ionic species, and hence will be suitable for interfacial osmotic transport.
 T. R. Kline, W. F. Paxton, Y. Wang, D. Velegol, T. E. Mallouk, and A. Sen, “Catalytic micropumps: Microscopic convective fluid flow and pattern formation,” J. Am. Chem. Soc., vol. 127, no. 49, pp. 17150–17151, 2005.
 W. F. Paxton, P. T. Baker, T. R. Kline, Y. Wang, T. E. Mallouk, and A. Sen, “Catalytically induced electrokinetics for motors and micropumps,” J. Am. Chem. Soc., vol. 128, no. 46, pp. 14881–14888, 2006.
 T. R. Kline, W. F. Paxton, T. E. Mallouk, and A. Sen, “Catalytic Nanomotors: Remote-Controlled Autonomous Movement of Striped Metallic Nanorods**,” pp. 744–746, 2005.
 S. M. Davidson, R. G. H. Lammertink, and A. Mani, “Convective Flows induced by Surface Reactivity Contrast,” pp. 1–15, 2017.
Master, Universite Paris-Est
Master, University of Ibadan
2015 → 2016
Bachelor, Federal University of Technology, Akure
2006 → 2011
Research output: Contribution to conference › Paper › Academic › peer-review
Research output: Contribution to journal › Article › Academic › peer-review
Research output: Contribution to journal › Article › Academic