Single yttrium sites on carbon-coated TiO2 for efficient electrocatalytic N2 reduction

We report single yttrium sites anchored on carbon-coated TiO(2)for efficient and stable electrocatalytic N(2)fixation, delivering an NH(3)faradaic efficiency exceeding 11.0% and an NH(3)yield rate as high as 6.3 mu g(NH3)h(-1)mg(cat.)(-1)at low overpotentials, thus surpassing many reported metal electrocatalysts.