Hollow CoP octahedral nanoparticles have been prepared, and they show exceptionally high intrinsic activity for both the oxygen evolution and methanol oxidation reactions.

No abstract

No abstract

No abstract

No abstract

The surface chemistry of the activated carbon supporting material was tailored to investigate the influence of O and N groups as well as O-free Lewis basic sites on the performance...

We report a simple low-cost concept for the preparation of water-oxidation electrocatalyst via modification of self-supported Ni 5 P 4 −Ni 2 P foam catalyst precursor with Al. As an anode for alkaline oxygen evolution reaction, this material exhibits an impressive Tafel slope of 27 mV dec −1 and offers anodic current densities of 10, 100, and 300 mA cm −2 at overpotentials of merely 180, 247, and 312 mV, respectively. Moreover, the anode demonstrates high operational stability, as reflected by a steady-state performance for more than 8 days. Combining state-of-the-art electron microscopy and photoelectron spectroscopy, we investigated the role of the Al dopant in the formation of active Ni(OH) 2 /NiO/Ni 5 P 4 −Ni 2 P nanocatalyst, which exhibits oxygen-evolving activity among the highest reported to date.

AlFe2B2 pre-catalyst produces a nanocrystalline Fe3O4 shell in alkaline media. The system acts as a remarkably stable water oxidation electrocatalyst.