Rapid carbothermal shocking fabrication of iron-incorporated molybdenum oxide with heterogeneous spin states for enhanced overall water/seawater splitting

Abstract

An efficient strategy to incorporate Fe into MoO2 nanosheets on Ni foam (Fe–MoO2/NF) was reported using a rapid carbothermal shocking method (820 °C for 127 s). This strategy could effectively solve the oxidation and aggregation of active sites in the long-time pyrolysis process.

In Situ Construction of Biphasic Boride Electrocatalysts on Dealloyed Bulk Ni–Mo Alloy as Self-Supporting Electrode for Water Splitting at High Current Density

“…subpeaks. , Compared with pure Ni 3 B, the peak intensity for the Ni 0 metal state of Mo 2 NiB 2 /Ni 3 B gets weaker, and the Ni 2p peaks of Mo 2 NiB 2 /Ni 3 B undergo a chemical shift of 0.46 eV to lower binding energy. The high-resolution Mo 3d spectrum of Mo 2 NiB 2 /Ni 3 B, shown in Figure c, can be deconvolved into three various subpeaks (Mo 0 , Mo 4+ , Mo 6+ ). ,, Compared with pure Mo 2 NiB 2 , the decrease of Mo 4+ peak intensity and the increase of Mo 6+ peak intensity in Mo 2 NiB 2 /Ni 3 B are attributed to oxidized Mo elements on the surface, while the decrease of Mo 0 peak intensity is ascribed to the interplay between the biphasic borides. Similarly, the Mo 3d peaks of Mo 2 NiB 2 /Ni 3 B shift to higher binding energy by 0.25 eV.…”