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Hydrogen gas: Difference between revisions
→Electrolysis
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Electricity can turn water (H<sub>2</sub>O) into hydrogen gas (H<sub>2</sub>) and oxygen gas (O<sub>2</sub>). This process is called [[electrolysis]]. | Electricity can turn water (H<sub>2</sub>O) into hydrogen gas (H<sub>2</sub>) and oxygen gas (O<sub>2</sub>). This process is called [[electrolysis]]. | ||
The electricity could come from renewable sources such as [[solar]], [[wind]], [[hydro]], or [[geothermal]]. But even we manage to scale up those energy sources, there is still an issue with scaling up the electrolysis itself: [[electrolysis#need for catalyst metals|the need for rare metals]] in the electrolyzers.<!-- TODO: say more decisively whether this scaling is viable or not: but first there are questions to resolve on the [[electrolysis]] page --> | The electricity could come from renewable sources such as [[solar]], [[wind]], [[hydro]], or [[geothermal]]. But even if we manage to scale up those energy sources, there is still an issue with scaling up the electrolysis itself: [[electrolysis#need for catalyst metals|the need for rare metals]] in the electrolyzers.<!-- TODO: say more decisively whether this scaling is viable or not: but first there are questions to resolve on the [[electrolysis]] page --> | ||
===From fossil fuels=== | ===From fossil fuels=== | ||