Fig. 4From: Promoting N2 electroreduction to ammonia by fluorine-terminating Ti3C2Tx MXenea The ammonia production rates and b partial current densities of NH3 production of Ti3C2Tx MXene samples with different surface densities of fluorine terminal groups. c Chronoamperometry curve of Ti3C2Tx-medium F MXene for 18 h under ‒0.7 V. d The NH3 yield rate (left y-axis) and Faradaic efficiency (right y-axis) of Ti3C2Tx-medium F MXene at ‒0.7 V for 6 timesBack to article page