The World Meteorological Organization has officially announced that when the United States exits the Paris Climate Change Accord, it expects the average global temperature to rise by about 0.3°C this century [1-4]. Large amounts of carbon dioxide are being generated by the drastic increase in the use of fossil fuels due to global industrialization. Clean fuels that can replace them are the need of the hour [5-7]. One of the environmentally-friendly energy alternatives–hydrogen, which is readily available since more than 70% of the world is occupied by water–is attracting attention. Hydrogen burns in nitrogen and oxygen oxides, and harmful substances can be safely removed even at low temperatures. Hydrogen also has a higher energy content than petroleum products such as gasoline or diesel, and can be used as a source of energy in mobile phones, portable devices, and hydrogen vehicles [8-12].