At HZB we often have interesting guests from abroad – and with challenging topics. I met two of them, Vitaly Datsyuk and Svitlana Trotsenko, on a sunny autumn day. The first time Vitaly and Svitlana came to HZB in Wannsee, they were stopped at the gate. Both scientists work in the Physics Department of Freie Universität Berlin on a Ukrainian passport. But because the requisite application as required by the Foreign Trade and Payments Act hadn’t gone through, the two had to leave empty handed. And yet, this minor hiccup did not stop them from returning. In fact now, once a month, they are regularRead More →

Fuel Cell Fuel cell is an energy conversion device that converts the chemical energy stored in fuels (Hydrogen) and oxidants into electricity through electrochemical reaction. We work on specific type of fuel cell which is Polymer electrolyte membrane fuel cell (PEMFC), which is consists of an anode and a cathode, and a polymer electrolyte membrane (PEM) in between. At the anode, hydrogen flows into the flow channel through the gas diffusion layer (GDL) to the catalyst layer (CL). In the anode CL, hydrogen splits into protons (hydrogen ions) and electron, these electron travels through an external circuit to the cathode, thus generate electricity. At theRead More →