Development and characterization of NiMoP alloy coating for electrocatalytic hydrogen evolution reaction in alkaline media

Porous tremella-like NiMoP/CoP network electrodes as an efficient electrocatalyst

“…4d), two peaks at 128.9 and 128.0 eV are observed, which reflects the binding energy of P 2p 1/2 and P 2p 3/2 of phosphides, in which Ni, Mo and/or Co covalently bond with reduced P. And the binding energy at 133.1 eV is attributed to oxidized P species. [33][34][35][36] The amounts of different metal valence species are summarized in Table S1, Table S2 and Table S3 (ESI †), respectively. It is worth noting that heteroatom doping emerges as a pivotal factor in enhancing the catalytic performance through promoting the surface adsorption of intermediates and accelerating the electron transfer between the active site and intermediates, ultimately improving the electrocatalytic activity.…”

“…In addition, the binding energy peaks at 232.9 and 236.1 eV are indicative of Mo 6+ 32. For the high-resolution P 2p spectrum (Fig.4d), two peaks at 128.9 and 128.0 eV are observed, which reflects the binding energy of P 2p 1/2 and P 2p 3/2 of phosphides, in which Ni, Mo and/or Co covalently bond with reduced P. And the binding energy at 133.1 eV is attributed to oxidized P species [33][34][35][36]. The amounts of different metal valence species are summarized in TableS1, TableS2and TableS3(ESI †), respectively.…”