HYDROGEN GLOSSARY Alkaline Fuel Cell (AFC) FCEV Liquid Organic Hydrogen Carrier Type of hydrogen cell in which the Fuel Cell Electric Vehicle. Vehicle powered (LOHC) electrolyte is traditionally made of by fuel cells Organic compounds that can store and concentrated potassium hydroxide (KOH) release hydrogen through catalytic reactions while hydroxide ions (OH-) are transported Fuel Cell Stack from the cathode to the anode Individual fuel cells which are typically Membrane connected in series to increase voltage Separating layer in a fuel/electrolysis Blue Hydrogen cell that acts as an electrolyte (an ion- Produced from natural gas via SMR with Green Hydrogen exchanger/permeating layer) and/or as a Carbone Capture, Utilization and Storage Commonly produced by water electrolysis, barrier between the gases of the anode and (CCUS) powered by renewable electricity cathode compartments Carbon Capture, Utilization and Storage Grey Hydrogen MEA (CCUS) Produced via steam reforming fossil fuels In a fuel cell, the Membrane Electrode Technologies that capture the carbon such as natural gas Assembly dioxide from fuel combustion or industrial processes for its use as a resource to Hydrogen Council Pink Hydrogen create valuable products or services, or its A global, CEO-led initiative of companies Produced by water electrolysis using permanent storage deep underground in with a vision and long-term ambition nuclear power geological formations for hydrogen as part of the clean energy transition Polymer electrolyte membrane, Compressed Gaseous Hydrogen (CGH2 proton-exchange membrane (PEM) or CHG) Hydrogen Refueling Station (HRS) Proton-conducting membrane made of a Highly compressed hydrogen which A filling station for FCEV solid polymer electrolyte remains gaseous and can be stored at ambient temperature Hydrogen (H, H)2 Power to Gas (PtG) A colourless, odourless, tasteless, non-toxic Process allowing energy from electricity Cryogenic Liquefaction gas that constitutes the most abundant to be stored and transported in a chemical A very low-temperature process which converts element in the universe; the molecule is form, by producing hydrogen via water hydrogen (or other gases) into a liquid state typically paired as dihydrogen (H)2 electrolysis E-fuels International Partnership for Hydrogen Solid Oxide Electrolyzer Cell (SOEC) Alternative fuels generated with CO and2 and Fuel Cells in the Economy (IPHE) Type of hydrogen cell in which the electrolyte renewable hydrogen A 22-member international inter- is a solid oxide (ie. a ceramic) while O- ions2 governmental partnership established are transported from the cathode to the Electrolyzer in 2003 to accelerate the clean energy anode. Solid Oxide Electrolysis cells operate The reaction of electrolysis takes place in a transition using hydrogen fuel cell at high-temperature unit called an electrolyzer technologies Steam Methane Reforming (SMR) (Water) Electrolysis LDV A chemical process in which natural gas Process of using electricity to split water Light-Duty Vehicle reacts with steam to produce a hydrogen- molecules into hydrogen and oxygen rich gas stream. The reaction also produces Liquefied Hydrogen (LH)2 carbon monoxide Fuel Cell (FC) Liquefied Hydrogen that has to be stored at Device that converts chemical energy from a temperature of -253 °C (-423 °F) hydrogen and oxygen to electricity through an electrochemical process 79