Water Splitting: Active Site Identification and Evaluation Criteria of In Situ Grown CoTe and NiTe Nanoarrays for Hydrogen Evolution and Oxygen Evolution Reactions (Small Methods 5/2019)

In article number 1900113 by Daojian Cheng, Dapeng Cao, and co-workers, in-situ grown CoTe and NiTe nanoarrays are synthesized as high-performance bifunctional catalysts for overall water splitting. The active species of the as-synthesized catalysts for the oxygen evolution reaction (OER) are identified by experiments and theoretical calculations, and a new theoretical evaluation criteria for the hydrogen evolution reaction (HER) is proposed, which can be used as a general criteria to evaluate the HER performance of other electrocatalysts.