Hollow TiO₂@Co₉S₈ Core-Branch Arrays as Bifunctional Electrocatalysts for Efficient Oxygen/Hydrogen Production.

ABSTRACT: Designing ever more efficient and cost-effective bifunctional electrocatalysts for oxygen/hydrogen evolution reactions (OER/HER) is greatly vital and challenging. Here, a new type of binder-free hollow TiO₂@Co₉S₈ core-branch arrays is developed as highly active OER and HER electrocatalysts for stable overall water splitting. Hollow core-branch arrays of TiO₂@Co₉S₈ are readily realized by the rational combination of crosslinked Co₉S₈ nanoflakes on TiO₂ core via a facile and powerful sulfurization strategy. Arising from larger active surface area, richer/shorter transfer channels for ions/electrons, and reinforced structural stability, the as-obtained TiO₂@Co₉S₈

SUBMITTER: Deng S 

PROVIDER: S-EPMC5867071 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature