In-situ single-phase derived NiCoP/CoP hetero-nanoparticles on aminated-carbon nanotubes as highly efficient pH-universal electrocatalysts for hydrogen evolution

Insights into the enhanced electrochemical sensing behavior of hydroquinone and catechol simultaneously enabled by ultrafine layer CoP–NiCoP heterostructure on graphene frameworks

“…For NiCoP/GFs, the diffraction peaks observed at 36.01°, 43.21°, 50.51°, and 73.79°are indexed to (100), (111), (112), and (211) crystal planes of NiCoP (JCPDS 71-2336). 21,27 The diffraction peaks of CoP/GFs centered at 36.43°, 43.23°, 52.55°, 65.71°, and 77.79°match with the (011), (102), (112), (020), and (022) CoP crystal planes (JCPDS 29-0497), which are identical to those reported for similar synthesis methods based on the phosphorizated process of Co hydroxide. 21 Nevertheless, the CoP peak intensity is different compared with some reported CoP obtained from cobalt oxides such as derived by zeolitic imidazolate framework-67 and then phosphorizated with NaH 2 PO 2 , which may be because of the difference between metal hydroxide and metal oxide affecting both the phosphating and crystallinity degrees.…”

An ultra-low Pt metal nitride electrocatalyst for sustainable seawater hydrogen production

“…3(c)) was 22.9 mV dec −1 , thereby demonstrating that HER proceeds via the Volmer–Tafel mechanism. 36 By extrapolating the Tafel plots to zero overpotential, the J 0 of Pt–Ni@NiMoN/NF was found to be 0.72 mA cm −2 compared to 0.61 mA cm −2 for Ni@NiMoN/NF, and 0.34 mA cm −2 for commercial Pt–C/NF. The higher J 0 shows that the intrinsic kinetics of the HER electron-transfer activity in Pt–Ni@NiMoN/NF is much faster than for the other electrocatalysts.…”

Study on the construction of cobweb-like NiS/NiS2 nanowire for enhanced hydrogen evolution reaction in alkaline electrolyte

“…In addition, constructing multiple components to regulate the internal electronic structure of chalcogenide is also an effective strategy for enhancing their HER performance. This is because the interface effect between each component exhivits a different property, synergistically promoting HER [8,9] .…”