In contrast, the full cell voltage dropped noticeably to 1.35 V at 10 mA cm–2 after the introduction of 0.33 M urea (Fig. 5d), showing that energy-saving hydrogen generation can be achieved by substituting the anodic OER with UOR. The urea electrocatalysis performance of Ni2P/NiMoP also ...
Apart from its exceptional OER performance, NiTe/Ni2P also exhibited exceptional stability in 1 M KOH compared to IrO2. After 100 h of continuous operation at 100 mA cm−2, no significant increase in potential was detected (Fig. 3f). To evaluate its performance in seawater ...
From XPS results, it is known that the phosphorous had a partial negative charge (Pδ−) in Ni2P, which repulsed the phenyl group away the surface of catalyst. Simultaneously, the nickel had a partial positive charge (Niδ+) in Ni2P, attracting the oxygen atom of carbonyl group to ...
yed to investigate the surface chemical composition and electronic state of ele- ments of the nanosheets before and after phosphidation. As shown in the XPS survey spectra (Fig. 4a), besides the Ni, C and N elements, new signal peak positioned at 133 eV corresponding to P element ...