Hydrogen technologies

electrochemical cell that converts chemical energy into electricity by oxidizing a fuel

unpowered aerostat

vessel filled with a superheated transparent liquid

a proposed system of delivering energy using hydrogen

vehicle that uses hydrogen fuel for motive power

liquid state of the element hydrogen

metalworking technique using a gaseous fuel and oxygen

reference redox electrode used under standard conditions

thumb|right|Nineteenth-century electrolytic cell for producing oxyhydrogen Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases. This gaseous mixture is used for torches to process refractory materials and was the first

corrosion prevention technique

thumb|upright=1.35|Diagram of a limelight burner

newly mined and refined type of metal

Apparatus for electrolysing water

lighter invented in 1823 by J. W. Döbereiner

spacecraft propulsion method that collects its fuel from interstellar dust.

small-scale generation of heat and power

gas used to pack sensitive materials such as food into a modified atmosphere environment

arc welding process using two tungsten electrodes in a shielding atmosphere of hydrogen

ion-exchange membrane specific for protons

type of rechargeable battery

incandescent lamp designed to regulate current

breathing gas mixture experimentally used for very deep diving

post transported with gas ballons

gaseous state of the element hydrogen kept under pressure

Technologies that relating to the production & use of hydrogen

finely powdered platinum used as a catalyst

gas used to create buoyancy in a balloon or aerostat

thumb|HCNG -CNG emission HCNG or H2CNG (hydrogen compressed natural gas) is a mixture of compressed natural gas and 4–9 percent hydrogen by energy. It may be used as a fuel gas for internal combustion engines and home appliances.

Infrastructure of transporting hydrogen

part of a PEM fuel cell

combination of liquid hydrogen and solid hydrogen

spin states of hydrogen

type of maser

Hydreliox is an exotic breathing gas mixture of hydrogen, helium, and oxygen. For the Hydra VIII (Hydra 8) mission at 50 atmospheres of ambient pressure, the mixture used was 49% hydrogen, 50.2% helium, and 0.8% oxygen.

device to increase pressure of hydrogen gas

thumb|A Helikite kytoon lifting a gyro-stabilised camera

process to to improve fuel economy, power output, or emissions

rocket propulsion system requiring low-temperature fuels

type of fusion

nondestructive testing method for detecting gas leaks

reference electrode whose potential depends on pH

Medical diagnostic test

Redox electrode

heat treatment in metallurgy