A bimetal hierarchical layer structure MOF grown on Ni foam as a bifunctional catalyst for the OER and HER

Abstract

NiFe based non-precious catalysts are promising substitute for noble metal-based catalysts due to their outstanding electrochemical performance and endurance. Herein, a NiFe based MOF supported on Ni foam was designed...

Formation of NiFe-MOF nanosheets on Fe foam to achieve advanced electrocatalytic oxygen evolution

“…For example, Yue's group 32 synthesized 2D-NiFe-BDC on nickel foam (NF) which shows an overpotential of 223 mV at 10 mA cm −2 . Mou's group 33 synthesized NiFe-MOF-5 on NF which exhibits an overpotential of 168 mV at 10 mA cm −2 . Among the self-supporting electrodes, the most used substrate is nickel foam, and less so is Fe foam (FF).…”

Enhanced oxygen evolution performance by the partial phase transformation of cobalt/nickel carbonate hydroxide nanosheet arrays in an Fe-containing alkaline electrolyte

“…4b could be split into 2p 3/2 and 2p 1/2 characteristic peaks of Ni 2+ and Ni 3+ , along with satellite peaks at 861.7 and 880.5 eV. 17–19 The coexistence of Ni 2+ and Ni 3+ with a similar amount ratio of Ni 3+ to Ni 2+ of around 0.60 before and after the 18 h OER test was revealed. Fig.…”

Bimetallic Ni–Mo nitride@N-doped C as highly active and stable bifunctional electrocatalysts for full water splitting

“…S9(a) (ESI †), at the same current density, the overpotential of NiMoN-2 is lower than IrO 2 , which means that NiMoN-2 has a better OER performance. [34][35][36][37][38] In order to determine the OER kinetics of four different catalysts, NiMoN-1/2/3, Ni-CN and Mo-CN, we used the data of j and Z in Fig. 4 The Tafel slopes of Mo-CN and Ni-CN are both close to 120 mV dec À1 , suggesting that the first electron transfer step in a sequential reaction is the rate-determining step.…”