Could a magnetic scoop work as a means to refuel a tank with hydrogen in orbit?

How effective would this be or would the Earth's magnetic field make it useless? Would it take too long for this to be of any use?

• I'm curious, what is a "magnetic scoop"? Can you add a link or two showing that such a thing exists, at least in theory? – uhoh Oct 12 '19 at 13:05
• Where is this hydrogen coming from? – Steve Linton Oct 12 '19 at 18:54
• Magnetic hydrogen would be helpful. – Uwe Oct 12 '19 at 21:05
• @Uwe ionised would do. – Steve Linton Oct 12 '19 at 21:09

Essentially, you need a way to take your newly acquired fuel up to your orbital speed. That takes most of the energy and $$\Delta v$$ it would have taken to lift it from the ground; you save only the gravitational potential, which isn’t a large fraction if you’re close enough to Earth to catch something.