Direct Conversion of Greenhouse Gas CO2into Graphene via Molten Salts Electrolysis

The results showed that CO2 could be effectively fixed by oxygen ions in CaCl2–NaCl–CaO melts to form carbonate ions, and subsequently electrochemically split into graphene on a stainless steel cathode; O2 gas was produced at the RuO2–TiO2 inert anode

Liwen Hu; Yang Song; Shuqiang Jiao; Yingjun Liu; Jianbang Ge; Handong Jiao; Jun Zhu; Junxiang Wang; Hongmin Zhu; Derek J. Fray


Scholarcy highlights

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  • Gr-aph-een Planet: Graphene is successfully produced through the electrochemical reduction of CO2 via molten salts electrolysis
  • Graphene was successfully created from the greenhouse gas CO2 using molten salts
  • The formation of graphene in this manner can be ascribed to the catalysis of active Fe, Ni, and Cu atoms at the surface of the cathode and the microexplosion effect through evolution of CO in between graphite layers. This finding may lead to a new generation of proceedures for the synthesis of high value-added products from CO2, which may contribute to the establishment of a low-carbon and sustainable world
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