hydrogen is recognized as an indirect greenhouse gas through its involvement in chemical reactions which affect the lifetime and concentration of other greenhouse gases10,11. In particular, tropospheric oxidation of H2depletes the hydroxyl
A challenge is that while stars such as the sun consist mostly of hydrogen, on Earth hydrogen only naturally occurs in compound form with other elements – think water or hydrocarbons such as natural gas and petroleum. The high cost and technology required t...
The hydrogen is used in a gas turbine for electricity generation. The reference is an electricity provision from a natural gas-fired power plant. Even the best methane decomposition configuration requires a carbon revenue of 600 to 700 €/t to reach cost parity [9]. A different study examines...
(BEVs), hydrogen fuel-cell electric vehicles (FCEVs), hydrogen internal combustion engines (H2-ICEs), and biofuel or synfuel internal combustion engines (if a sustainable source of carbon is used). Hybrid and gas engines represent bridging technologies to reduce emissions in...
condition. Here, H-atom addition energy (HAE) was calculated via density functional theory (DFT) for these three candidates and used to assess their ability to carry a H atom. These HAE values were defined as the energy change for the addition of a H atom to a molecule (M) in gas ...
Photocatalytic splitting of water molecules into hydrogen gas has become a research interest for its key role in the clean energy industry. It is a relatively simple process in which metal oxide or sulfides are used as semiconductors in the presence of sunlight that splits water into hydrogen and...
What you get is an explosive reaction known as an oxyhydrogen gas reaction. Hydrogen is flammable, as this shows, but an uncontrolled reaction of hydrogen and oxygen in the operation of an FCEV is virtually impossible. This is because, in hydrogen fuel cell cars, the hydrogen is stored in ...
This work investigates life cycle costing analysis as a tool to estimate the cost of hydrogen to be used as fuel for Hydrogen Fuel Cell vehicles (HFCVs). The method of life cycle costing and economic data are considered to estimate the cost of hydrogen for centralised and decentralised producti...
Energy production in the European Union focuses on the use of various energy sources, such as solid fuels, natural gas, oil, nuclear power, and renewable energy (e.g., hydroelectric, wind, and solar power). Renewable sources account for the largest share of energy production [56,57]. In ...