NixRh1-xOy composite nanofibres as highly efficient and robust oxygen evolution electrocatalysts

Metal oxide composite nanofibres consisting of Ni and Rh (denoted as NixRh1−xOy, 0 < x < 1) were synthesised using a simple electrospinning and post-calcination process. The electrospun NixRh1−xOy composite nanofibres showed various morphologies and crystallinities depending on the relative molar ratio of Ni to Rh. While NixRh1−xOy with a high Ni content (0.67 ≤ x ≤ 0.83) showed the typical structure of nanotube-like main backbones decorated...