Carbon dioxide was effectively reduced to carbon monoxide by pulse power discharge. Linear discharge in a glass tube filled with CO 2 or CO 2 and H 2 gas mixture at 150 to 450 Torr pressure was powered by a low-impedance Marx generator (about 3 Ω, 200 kV max , stored energy, 10 kJ). The maximum reduction efficiency was 290 nmol/sW (the electric power used in the estimation was the stored energy in capacitors of the Marx generator).
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Nakagawa et al. (1993) studied this question.
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