▎ 摘　　要

It is shown that both graphite oxide (GO) and oxidized graphene nanoribbons (OGN) can be safely reduced by using hydrogen iodide (hydroiodic acid). FT-IR spectroscopy and TGA-DTG were used to show that HI 67% is able to lead to a complete reduction of GO while HI 57% is less effective. In terms of FT-IR spectroscopy and thermal analysis, the HI-reduced GO is almost identical to the N2H4-reduced GO. Hydrogen iodide 57% is in any case effective in reducing OGN. Since hydrazine is extremely toxic and explosive when anhydrous, it is suggested to use HI (preferably at 67% concentration) as alternative, safe and effective reducing agent.