An overview of hydrogen fuel cell technology: India's first hydrogen fuel cell bus.
The nation's first hydrogen fuel cell-powered bus was recently unveiled by Union Minister Jitendra Singh. The technology behind hydrogen fuel cells is described here.
The hydrogen fuel cell produces just heat and water while generating electricity using hydrogen and air. Hydrogen and oxygen atoms are combined to create power in hydrogen fuel cells like the one on the bus. In an electrochemical cell resembling a traditional battery cell, the two gases react to produce electricity, water, and minuscule amounts of heat. Electric motors then use this energy to move the car forward.
What is a hydrogen fuel cell?
According to the US Department of Energy, fuel cells function similarly to the conventional batteries used in electric vehicles, except that they don't lose their charge over time and don't require an electrical source to replenish them. As long as there is hydrogen available, they will continue to generate power. The anode, which is the negative electrode, and cathode, which is the positive electrode, are sandwiched around the electrolyte in a fuel cell, much like in regular cells. The anode receives hydrogen while the cathode receives air. Protons and electrons are separated from hydrogen molecules at the anode by a catalyst, and then they go in opposite directions to the cathode. The flow of electricity produced by the electrons passing via an external circuit can be used to drive electric motors. Protons, on the other hand, travel via the electrolyte to the cathode. They combine with oxygen and electrons there to create heat and water.
Are hydrogen fuel cell-powered cars environmentally friendly?
It's crucial to realize that using an electric vehicle with a battery does not cause any emissions to be released rather, it causes no tailpipe emissions to be released. These vehicles do emit a sizable quantity of pollution when in operation because fossil fuels supply the majority of the nation's electricity and are now the world's main source of hydrogen.