Ternary TiO2/Ni–Ni(OH)2/NiPi nanotube arrays with synergetic effect for enhanced photoelectrocatalytic H2-evolution

InN nanorod/Ni(OH)2 heterojunction photoelectrode for efficient photoelectrochemical water splitting

“…20,21,31 For the O 1s spectra (Fig. 2d), the 529.60 peak was assigned to In-O, 32 which was formed by the combination of In atoms and superfluous oxygen vacancies on the surface of the InN NRs, whereas the peak of 531.64 eV was derived from the surface hydroxyl group (OH). 33 By combining the XPS and EDS results, the distribution of elements was clearly illustrated.…”