One-step synthesis of wire-in-plate nanostructured materials made of CoFe-LDH nanoplates coupled with Co(OH)₂ nanowires grown on a Ni foam for a high-efficiency oxygen evolution reaction

Abstract

A series of wire-in-plate nanostructured electrocatalysts for OER with high catalytic activity were fabricated.

Etching‐Doping Sedimentation Equilibrium Strategy: Accelerating Kinetics on Hollow Rh‐Doped CoFe‐Layered Double Hydroxides for Water Splitting

“…electrocatalysts for their remarkable tunability of morphology, structure, and composition. [11] Various strategies, such as in situ growth by hydrothermal reaction, [12,13] electrodeposition, [14,15] layer-by-layer assembly, [16,17] and other combined multiple-steps processes, [18] were proposed to prepare various LDHs. Recently, many researchers have been attracted by an unusual synthesis method of etching precursor into hollow hierarchical structural LDHs.…”

Facile Synthesis of Three‐dimensional Hierarchical Ni3S2@CoAl‐LDHs Nanosheet Arrays and Their Efficient Hydrogen Evolution

“…Three relatively strong peaks at 44.51°(111), 51.85°(200) and 76.37°( 220) can be clearly distinguished and are attributed to metal nickel foam substrate (JCPDS 04-0850). [40] After obtaining LDH nanosheets through preliminary reactions, the main diffraction peaks appearing at 11.53°, 23.21°, 34.60°and 38.78°can be ascribed to (003), (006), (012) and (015) planes, respectively, which match well with the CoAl-LDHs phase (JCPDS 51-0045). [41] For the Ni 3 S 2 prepared separately, several well-defined peaks at 21.75°, 31.10°, 37.78°, 49.73°and 55.16°apart from the diffraction peaks of nickel foam can be corresponding to the respective (101), (110), (003), (113) and (122) crystal faces, confirming the existence of hexagonal Ni 3 S 2 (JCPDS 44-1418).…”

Ultrafine Pd Nanoparticles Supported on Soft Nitriding Porous Carbon for Hydrogen Production from Hydrolytic Dehydrogenation of Dimethyl Amine-Borane

“…Previous studies have suggested that N-doping can activate nearby carbon atoms, and thus increase the active sites [ 27 , 28 ]. For the C1s spectrum ( Figure 2 c), the main peak at 284.8 eV is related to the C=C bonds [ 29 , 30 ], and the other two peaks at higher binding energies of 286.5 and 289.3 eV are ascribed to the oxygen-containing groups of C–O and O–C=O, respectively [ 31 , 32 ]. Additionally, the peak located at 285.4 eV is ascribed to C=N [ 33 , 34 ], suggesting the successful nitrogen-doping of PC via the soft nitriding processing [ 35 ].The high-resolution Pd 3d core level spectrum ( Figure 2 d) can be divided into two groups peaks corresponding to oxidized Pd species as a result of the oxidation occurred on the surface of the catalyst during the preparation and characterization procedures.…”