Superior Electrocatalysis Delivered by a Directional Electron Transfer Cascade in Hierarchical CoNi/Ru@C

Graphical The spatial junction in hierarchical confined CoNi/Ru@C has been synthesized, and its directional effect of electron transfer cascade can greatly promote the electrocatalytic hydrogen evolution in alkaline water/seawater. Exploiting directional electron transfer cascades could lead to high-performance electrocatalysts for processes such as the hydrogen evolution reaction, but realising such systems is difficult. Herein, a hierarchical confined material (CoNi/Ru@C) is presented, which provides a suitable spatial junction to enable directional electron transfer, giving superior hydrogen evolution in alkaline water/seawater.