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Hydrogen cycle — Hydrogen is one of the constituents of water. It recycles as in other biogeochemical cycles. It is actively involved with the other cycles like the carbon cycle, nitrogen cycle ,sulfur cycle and oxygen cycle as well.Anaerobic fermentation of… … Wikipedia
Cycle de l'hydrogène — L élément hydrogène est un des composants de l eau. Il est recyclé dans des cycles biogéochimiques. Il participe activement au cycle du carbone, de l azote, du soufre et de l oxygène. La fermentation anaérobie des substances organiques en dioxyde … Wikipédia en Français
Hydrogen production — Hydrogen is commonly produced by extraction from hydrocarbon fossil fuels via a chemical path. Hydrogen may also be extracted from water via biological production in an algae bioreactor, or using electricity (by electrolysis), chemicals (by… … Wikipedia
Hydrogen sulfide — Systematic name … Wikipedia
Hydrogen peroxide — IUPAC name … Wikipedia
Cycle Soufre-iode — Le cycle iode soufre (cycle IS ou S I en anglais) est une série de processus thermochimiques utilisée pour la production d hydrogène. Il consiste en trois réactions chimiques dont le réactif net est l eau et dont les produits nets sont de l… … Wikipédia en Français
Hydrogen embrittlement — (or hydrogen grooving) is the process by which various metals, most importantly high strength steel, become brittle and crack following exposure to hydrogen. Hydrogen cracking can pose an engineering problem especially in the context of a… … Wikipedia
Hydrogen technologies — are technologies that relate to the production and use of hydrogen. Hydrogen technologies are applicable for many uses.Some hydrogen technologies are carbon neutral and could have a role in preventing climate change and a possible future hydrogen … Wikipedia
Hydrogen fuel enhancement — is the process of using a mixture of hydrogen and conventional hydrocarbon fuel in an internal combustion engine, typically in a car or truck, to improve fuel economy, power output, or both. While the term may be used to refer to different ways… … Wikipedia
Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… … Wikipedia
