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This is just pessimism. Yes, there are other hurdles to overcome for hydrogen. But this is a major advance in one of the primary pieces necessary for a hydrogen
by nardi 12y ago
This is just pessimism. Yes, there are other hurdles to overcome for hydrogen. But this is a major advance in one of the primary pieces necessary for a hydrogen economy. What makes you think advances in other areas are impossible?
And to answer your question, much better energy density by mass.
- keenerd 12y agoWho cares about mass except NASA? H2 is terrible by volume, a liter of gasoline has more hydrogen in it than a liter of liquid H2 and the gasoline is a lot more safe. Some little PDFs about the hurdles of hydrogen from one of my favorite tech writers: http://www.tinaja.com/glib/resbn88.pdf http://www.tinaja.com/glib/resbn88.pdf http://www.tinaja.com/glib/energfun.pdf http://www.tinaja.com/glib/energfun.pdf A hydrogen economy might be possible one day, but not until we find a natural H2 source that is as "free" as crude oil. Man made hydrogen will not work on a large scale. Electrolysis is one of the worst ways to make hydrogen, though it does have the highest "gee-whiz!" factor. If we did have unlimited hydrogen spewing out of the ground people would seriously consider first cracking the H2 into hydrocarbons to make it easier to transport.
- waps 12y agoAnd if you blast coal with it ... Guess what comes out ? (Granted you'd also need to make coal out of co2, which is so much harder. but every little bit helps)