Li Jin, Li Yue, Tong Nannan, Zhang Jian, Tang Qianqian, Wu Naiteng, Liu Guilong, Chen Haipeng, Liu Xianming
College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China.
New Energy Technology Engineering Lab of Jiangsu Province, College of Science, Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210023, PR China.
J Colloid Interface Sci. 2026 Jan;701:138796. doi: 10.1016/j.jcis.2025.138796. Epub 2025 Aug 21.
Sulfur-doped carbon (SC) is widely used as an effective support to stabilize and enhance the catalytic performance of noble metals, attracting considerable research interest. Herein, we utilize a straightforward one-step calcination approach to fabricate ruthenium nanoparticles coated with SC (Ru@SC). The integration of SC as a support not only improves the stability and dispersion of Ru nanoparticles but also optimizes their electronic properties, ultimately leading to more efficient hydrogen evolution. Specifically, the Ru@SC catalysts show excellent hydrogen evolution reaction (HER) performance in acidic conditions, achieving an overpotential of 88.3 mV at 10 mA cm, significantly outperforming the Ru@C catalyst (131.1 mV). Moreover, an aion exchange membrane water electrolysis (AEMWE) using this catalyst achieves 1 A cm at 1.81 V with excellent stability. Density functional theory (DFT) calculations demonstrate that the robust electronic interaction at the Ru-SC interface significantly modifies the local electronic environment of Ru atoms. Such electronic restructuring leads to an optimal d-band center shift, which effectively balances the adsorption and desorption process of hydrogen intermediates (H), ultimately boosting the catalytic performance toward HER. This study proposes an innovative strategy for the development of high-efficiency electrocatalysts, offering significant potential for advancing sustainable energy technologies.
硫掺杂碳（SC）作为一种有效的载体被广泛用于稳定和提高贵金属的催化性能，引起了广泛的研究兴趣。在此，我们采用一种简单的一步煅烧方法制备了包覆有SC的钌纳米颗粒（Ru@SC）。将SC用作载体不仅提高了Ru纳米颗粒的稳定性和分散性，还优化了其电子性质，最终实现了更高效的析氢反应。具体而言，Ru@SC催化剂在酸性条件下表现出优异的析氢反应（HER）性能，在10 mA cm时过电位为88.3 mV，明显优于Ru@C催化剂（131.1 mV）。此外，使用这种催化剂的阴离子交换膜水电解（AEMWE）在1.81 V时实现了1 A cm的电流密度，且具有出色的稳定性。密度泛函理论（DFT）计算表明，Ru-SC界面处强大的电子相互作用显著改变了Ru原子的局部电子环境。这种电子重构导致了最佳的d带中心位移，有效地平衡了氢中间体（H）的吸附和解吸过程，最终提高了对HER的催化性能。本研究为开发高效电催化剂提出了一种创新策略，为推动可持续能源技术发展提供了巨大潜力。
