Bifunctional Mn-doped CoSe2 nanonetworks electrode for hybrid alkali/acid electrolytic H2 generation and glycerol upgrading

Electrolytic water splitting, as a promising route to hydrogen (H2) production, is still confronted with the sluggish anodic oxygen evolution reaction (OER) and its less value-added O2 production. Herein, we report bifunctional electrode fabricated by in situ growth of Mn-doped CoSe2 nanonetworks on carbon fiber cloth (Mn-CoSe2/CFC), which shows attractive electrocatalytic properties toward glycerol oxidation (GOR) alkali (HER) acid. A flow alkali/acid hybrid electrolytic cell (fA/A-hEC) was then developed coupling GOR cathodic HER Mn-CoSe2/CFC electrode. Such fA/A-hEC enables rather low voltage 0.54 V achieve 10 mA cm?2, maintain long-term electrolysis stability over 300-h operation at 100 cm?2 Faraday efficiencies 99% for H2 90% formate The designed such innovative device provides insightful guidance energy-efficient production biomass upgradation.