Although the electrochemical reaction is an effective and great promise to produce hydrogen, the realization of efficient and stable catalysts is still a significant challenge in the various electrochemical systems, such as water splitting and metal-CO₂ batteries. Herein, we report Ru nanoparticles anchored at edge-selectively nitrogenated graphitic nanoplatelets (Ru-ENG) instead of on the basal plane in two-dimensional (2D) graphitic substrate. The Ru nanoparticles interacted with both of armchair-ENG and zigzag-ENG substrate lead to favorable hydrogen evolution activities of icosahedron cluster Ru₁₃ in Ru-ENG at a universal pH, compared to Ru metal cluster. The spontaneous electron re-construction between edge-site of N and ruthenium particles in Ru-ENG catalyst is attributed to the faster reaction kinetics with lower Tafel slopes and higher turnover frequencies than the benchmark Pt/C catalyst in any pH conditions. More importantly, the Ru-ENG electrocatalyst exhibited superior long-term consecutive stability (over 1,500 h) at a high current density of 100 mA cm⁻² in the practical water-splitting system.

尽管电化学反应是产生氢的有效方法和广阔前景，但在各种电化学系统中，例如水分解和金属CO ₂电池，实现高效稳定的催化剂仍然是一项重大挑战。在本文中，我们报道了Ru纳米颗粒锚固在二维（2D）石墨基质的边缘选择性氮化的石墨纳米薄片（Ru-ENG）中，而不是在基面上。Ru纳米粒子与扶手椅-ENG和锯齿-ENG衬底都相互作用，导致二十面体簇Ru ₁₃具有良好的析氢活性。与Ru金属簇相比，在Ru-ENG中在通用pH值条件下。Ru-ENG催化剂中N和钌颗粒边缘位置之间的自发电子重构归因于在任何pH条件下，反应动力学较快，塔菲尔斜率较低，周转频率高于基准Pt / C催化剂。更重要的是，在实际的水分解系统中，Ru-ENG电催化剂在100 mA cm ^-2的高电流密度下表现出优异的长期连续稳定性（超过1,500 h）。