3D V–Ni3S2@CoFe-LDH core-shell electrocatalysts for efficient water oxidation

Selective electrooxidation of 5-hydroxymethylfurfural at low working potentials promoted by 3D hierarchical Cu(OH)2@Ni3Co1-layered double hydroxide architecture with oxygen vacancies

“…49 Due to the growth orientation, low crystallinity and/or less content, only one weak diffraction peak at 11.3° corresponding to the (003) crystal plane of typical LDHs can be detected in the XRD pattern of CF/Cu(OH) 2 @Ni 3 Co 1 -LDH. 50,51 Similarly, barely detectable reflections for Ni(OH) 2 , Co(OH) 2 , and Ni 3 Co 1 -LDH can be observed in the XRD patterns of the control samples ( e.g. CF/Cu(OH) 2 @Ni(OH) 2 , CF/Cu(OH) 2 @Co(OH) 2 , and CF/Ni 3 Co 1 -LDH (Fig.…”

A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst

“…The two additional satellite peaks at 789.1 and 805.2 eV are attributed to Co 2p 3/2 and Co 2p 1/2 , respectively. The Fe 2p region (Figure 2b) shows two peaks at 711.6 and 725.3 eV matched with Fe 3+ 2p 3/2 and Fe 3+ 2p 1/2 [33], respectively. In the Cu 2p spectrum of CuO@CoFe-LDH/CF, two peaks at 934.2 and 954 eV can attribute to Cu 2p 3/2 and Cu 2p 1/2 , respectively, further affirming the presence of Cu 2+ oxidation state (Figure 2c) [34,35].…”

Engineering Heterostructured Fe-Co-P Arrays for Robust Sodium Storage

“…The optimized crystal constructions of Fe-Co-P, Na adsorbed in Fe-Co-P, FeP, and Co 2 P are displayed in Figure 6a-d. The charge density difference of FeP/Co 2 P in Figure 6e demonstrates electron transfer from FeP to Co 2 P, which generates an intrinsic electric field at the interface and expedites charge transfer and Na + ions transportation [45][46][47][48][49]. The sodium adsorption capabilities were evaluated through computational models depicting Na + interactions with FeP, Co 2 P, and FeP/Co 2 P heterostructure illustrated in Figure 6f-h.…”