基于不同双掺碳纳米管负载Ru基催化剂的制备及碱性电解水析氢
For Applications in Efficient Alkaline Hydrogen Generation, This Study Focuses on Nano-Scale Ruthenium (Ru) Clusters Anchored onto Doped Carbon Nanotubes, Aiming to Investigate in Depth the Effects of Various Heteroatom Dopants on Metal-Support Interactions and Their Regulatory Mechanisms on Catalytic Performance
摘要: 金属–载体相互作用在调节金属纳米团簇的电子性质并确保其稳定性方面扮演着核心角色。此研究细致地构建了一套基于多种非金属元素(包括氧、氮、硫等)掺杂碳纳米管负载的钌基催化剂体系(标记为Ru/x-CNT)，旨在深入探索金属–载体相互作用与氢气演化反应(HER)效能之间的内在关联。相较于氮掺杂碳纳米管(N-CNT)和硫掺杂碳纳米管(S-CNT)，氧掺杂碳纳米管(O-CNT)负载的钌纳米团簇因其显著的电荷转移特性，展现出更为强烈的金属–载体相互作用。这一独特的相互作用机制使得O-CNT/钌纳米团簇催化剂在达到10 mA/cm2的电流密度时，仅需极低的23 mV过电位即可运行，并且在更高的100 mA/cm2电流密度下仍能维持卓越的稳定性，从而凸显出其在电催化领域的潜在优势。此研究明确表明，强化的金属–载体相互作用对于兼备提高析氢反应活性与增强其稳定性的双重目标至关重要。
Abstract: Metal-support interaction plays a critical role in shaping the electronic structure of metal nanoclusters and contributes significantly to their stabilization. Within this context, it is essential to explore how specific interactions influence the properties and behavior of these nanoclusters at the atomic level. In this study, a series of Ru-based catalysts supported on carbon nanotubes (CNT) doped with various nonmetallic elements—specifically oxygen (O), nitrogen (N), and sulfur (S)—are meticulously designed to explore the intricate relationship between metal-support interactions and hydrogen evolution reaction (HER) activities. By varying the doping elements and their concentrations, we aim to elucidate how these interactions influence catalytic performance, thereby providing insights into optimizing HER efficiency through tailored metal-support interfaces. In comparison to N-CNT and S-CNT, O-CNT-supported Ru nanoparticles (NCs) exhibit significantly enhanced metal-support interactions attributed to the high charge transfer efficiency between Ru and the substrate. This unique characteristic results in an outstanding low overpotential of merely 10 mV at a current density of 10 mA/cm2, coupled with exceptional stability under a current density of 100 mA/cm2. This observation underscores the importance of oxygen doping in optimizing the electrocatalytic performance of Ru-based materials for applications requiring efficient and durable hydrogen evolution reactions. This research substantiates that strengthened metal-support interactions are advantageous for enhancing both the hydrogen evolution reaction (HER) activity and its durability.
文章引用：张健, 张凯楠, 胡运烨, 李林, 杨焱沆, 张驰, 孙旭镯. 基于不同双掺碳纳米管负载Ru基催化剂的制备及碱性电解水析氢[J]. 物理化学进展, 2026, 15(3): 236-248. https://doi.org/10.12677/japc.2026.153023

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