| 초록 |
Re-based HER electrocatalysts exhibit predictable high performance within the entire pH range but suffer from arduous formation (i.e., vulnerability to oxidation) and uncontrollable aggregation, which strongly discourages the maximisation of active site exposure required for activity enhancement. To overcome these limitations, we herein hydrothermally synthesise Re nanoclusters uniformly distributed on nanosheet supports, revealing that this hybrid features abundant exposed active sites and high oxidation resistance. Also, density functional theory calculations confirm the optimised synthesis of Re NCs@rGO and indicate the crucial role of Re–O–C junction formation in securing durability. The effective suppression of Re nanocluster detachment under HER conditions endows Re NCs@rGO with high electron conductivity and electrochemical stability. |
