Designing highly efficient catalysts act as a key role for the green and sustainable hydrogen production through water electrolysis. In this work, hollow structured B-doped FeP nanospheres supported Ru (Ru/h-B-Fe-P) is developed by low temperature phosphorization, acid etching and following microwave treatment approach. The hollow structure, abundant defects and electronic interactions between Ru and FeP can favour the mass transport and boosting the reaction kinetics toward all-pH hydrogen evolution reaction (HER). Then, Ru/h-B-Fe-P achieves excellent catalytic activities in acidic, neutral, alkaline, and alkaline seawater electrolytes with only 56 mV, 79 mV, 88 mV and 99 mV to drive 10 mA cm −2 with remarkable stability. This work indicates that decorated noble metals onto specific nanostructured matrix is a promising approach to enhance the catalytic activities.
Phosphorus anode has shown great potential for the high-rate and high-energy–density lithium-ion batteries. Nevertheless, it still suffers from possible electrode cracking, ion-transport restrictions, and active-particle decomposition resulting from repeated alloying/de-alloying. To address the aforementioned issues, a nitrogen-doped flower-like porous phosphorus (f-P) sphere has been developed. The abundant micro-mesopores facilitate ion diffusion and enhance the internal bonding strength of the electrode. Concurrently, the doped nitrogen promotes the generation of a favorable solid electrolyte interphase constructed by fast-ion-conductors. As a result, the f-P exhibits a high-rate capacity of 735mAh g −1 at 20 A g −1 and maintains high Coulombic efficiencies over 900 cycles at 10 A g −1 . Furthermore, coin full-cells comprising the f-P anode and lithium cobalt oxide cathode demonstrate stable operation at a high current density of 6 mA cm −2 . The combination of a porous structure and doping strategy represents a viable approach for strengthening the durability of electrodes and optimizing the ion transport kinetics of advanced alloy anode materials.
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