Chemistry Study Programme, Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta on Wednesday, November 11, 2020 conducted a Guest Lecture activity by Dr. Stevin Snellius Pramana from Newcastle University, United Kingdom. Dr. Stevin delivered a topic related to renewable energy, namely Novel Solid Oxide Fuel Cell Cathode and Electrolyte Materials for Electricity Generation.

When talking about renewable energy, everyone is now competing to find and research about renewable energy and there are a lot of research materials in the field of energy that can be done including fuel cells like what Dr. Stevin and his team done. These fuel cells can be used as vehicle fuel and stationary power generation.

Basically, fuel cells are electrochemical devices that convert chemical energy into electrical energy as a battery. There are several types of fuel cells, namely: (1) Polymer Electrolyte Membrane (PEM), (2) Alkaline (AFC), (3) Phosphoric Acid (PAFC), (4) Molten Carbonate (MCFC), and (5) Solid Oxide (SOFC). In PEM type, in ANODE there is hydrogen oxidation, while in CATHODE there is an oxygen reduction reaction to form H₂O. As for the SOFC type, the oxidation of hydrogen and oxygen to form H₂O occurs at ANODE while the reaction in CATHODE occurs in an oxygen reduction reaction.

Currently more researchers are working and researching on solar cells rather than fuel cells, even though these fuel cells are also included as clean energy, students who are interested in fuell cells are even interested in continuing their master's study in the field of fuel cells, suggested to read Dr. Stevin publication and research results. They also urge to discuss further with Dr. Stevin by e-mail.