From Biological to Biomimetic: Immobilizing Electrocatalysts for H2/O2 Fuel Cells

New Electrocatalysts for Fuel Cells

Approach • Study the kinetics of fuel cell electrode reactions on well-characterized model electrodes and high surface area fuel cell electrocatalysts using modern electroanalytical methods. • Study the mechanisms of the reactions using state-of-the art in-situ spectroscopes. • Use ultrahigh vacuum (UHV) methods of surface preparation and surface analyses to form tailored surfaces. • Synthesize...

Carbon-Supported PtRuMo Electrocatalysts for Direct Alcohol Fuel Cells

The review article discusses the current status and recent findings of our investigations on the synthesis and characterization of carbon-supported PtRuMo electrocatalysts for direct alcohol fuel cells. In particular, the effect of the carbon support and the composition on the structure, stability and the activity of the PtRuMo nanoparticles for the electrooxidation of CO, methanol and ethanol ...

Development of Supported Bifunctional Electrocatalysts for Unitized Regenerative Fuel Cells

Mixed metal catalysts containing Pt, Ir, Ru, Os, and Rh were synthesized on three different conductive oxide supports, Ebonex, which is a mixture of Ti4O7 and other phases, phase-pure microcrystalline Ti4O7 , and Ti0.9Nb0.1O2 , a doped rutile compound. Ebonex-supported catalysts were prepared as arrays and screened combinatorially for activity and stability as bifunctional oxygen reduction/wate...

From biological membranes to biomimetic model membranes

Biological membranes play an essential role in the cellular protection as well as in the control and the transport of nutrients. Many mechanisms such as molecular recognition, enzymatic catalysis, cellular adhesion and membrane fusion take place into the biological membranes. In 1972, Singer et al. provided a membrane model, called fluid mosaic model, in which each leaflet of the bilayer is for...

Microfluidic Platform for Immobilizing Cells to Surfaces