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A comment on Direct conversion of CO2 to solid carbon by Gallium-based liquid metals. Parent comment

Re:Direct conversion of CO2 to solid carbon by Gallium-based... by renewiltord on Tuesday January 18, 2022 @09:49PM (#29989315)
He's not talking about perpetual motion. The input energy into this hypothetical spherical-cow process is concentrated reflected insolation. Unfortunately, getting the Ga2O back to being liquid Ga is probably the problem.
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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by analog31 on Tuesday January 18, 2022 @10:28PM (#29989596)
How is it smelted from ore in the first place? Quick look suggests that it starts out as an oxide, and is a byproduct of aluminum production.
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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by Iwan-Zotow on Wednesday January 19, 2022 @08:10AM (#29993129)
> getting the Ga2O back to being liquid Ga is probably the problem

guess, the same way we got it - bath, electricity, cathode and anode

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