Bifunctional heterostructured nitrogen and phosphorus co-doped carbon-layer-encapsulated Co2P electrocatalyst for efficient water splitting

Dense Crystalline/Amorphous Phosphides/Oxides Interfacial Sites for Enhanced Industrial-Level Large Current Density Seawater Oxidation

“…In the P 2p core-level spectrum (Figure E), the peaks around 129.3 and 130.5 eV are ascribed to the P 2p 3/2 and P 2p 1/2 states of the metal-P bonds, respectively, whereas the peak at 133.9 eV corresponds to oxidized P species . The O 1s core-level spectrum shows three distinct peaks at 529.8, 530.9, and 532.5 eV, originating from M–O bonds, M–OH bonds, and adsorbed H 2 O, respectively, (Figure F). , The shift of the binding energy means that the electron density redistribution happens after the electrochemistry reconstruction process and the electron accepting ability is improved, both which are beneficial for OER.…”

“…44 The O 1s core-level spectrum shows three distinct peaks at 529.8, 530.9, and 532.5 eV, originating from M−O bonds, M−OH bonds, and adsorbed H 2 O, respectively, (Figure 4F). 45,46 The shift of the binding energy means that the electron density redistribution happens after the electrochemistry reconstruction process and the electron accepting ability is improved, both which are beneficial for OER.…”

Recent Advances and Future Perspectives of Metal‐Based Electrocatalysts for Overall Electrochemical Water Splitting

“…[176] Another successful approach for regulating crystalline strain is to create a layering crack among the catalysts and medium. [177] Temperature-induced aerial oxidation is used to form a thin layer of n-loaded TiO 2 immediately over NiTi foil. Its catalytic performance is studied after the regulated tensile stresses are imposed.…”

Hydrothermal Prepared Bramble-like Double Arrays NiCo2S4 Bifunctional Electrocatalysts for High-Efficiency Water Splitting

“…For the development of alternative catalysts, researchers found that transition metal sulfide should be a type of ideal catalyst with abundant natural reserves and convenient manufacturing. , Transition metal sulfides, like MoS 2 , Ni 3 S 2 , and WS 2 , have shown excellent performance in the electrocatalytic decomposition of water and were increasingly used in photocatalysis and capacitor design caused by their unique properties and excellent activity with superior stability. − However, more exposure zones for larger activity sites always imported 3D structural defects and collapses, which were harmless for its lifetime and inner electronic transmission performance of the catalytst. − Wei et al designed NiCoP nanocone arrays loaded on nickel foam that exhibited overpotentials of 197 and 370 mV at 100 mA cm –2 in alkaline conditions for HER and OER, and stability could only be maintained for 28 h . Xu et al designed a NiCoS 2 nanowire that provided overpotentials of 231 mV for HER and 370 mV for OER but under a 100 mA cm –2 current density, which was energy consumption in commercial applications and affected its long-running stabilization .…”