Sam Daniel Kobina, Tang Zhen, Cao Yan
School of Energy Science and Engineering, University of Science and Technology of China, Hefei 230026, China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China.
J Colloid Interface Sci. 2025 Dec;699(Pt 2):138213. doi: 10.1016/j.jcis.2025.138213. Epub 2025 Jun 22.
Noble-metal-based electrocatalysts have long been the top choice for hydrogen evolution reaction (HER) electrocatalysts, offering low overpotentials and Tafel slopes. Nonetheless, their use in alkaline media has been limited due to the sluggish kinetics of the Volmer process. Herein, we develop a unique biomass-derived heteroatom-doped porous carbon material via self-templating to anchor ruthenium‑molybdenum carbide (Ru-MoC) nanoclusters. The synthesized Ru-MoC-supported heteroatom-doped porous carbon (RuMo-NPCSPC) shows exceptional electrocatalytic ability for alkaline HER, achieving low overpotentials of 49, 85, and 92 mV to realize 10 mA cm in 1 M KOH, alkaline seawater, and simulated alkaline seawater, respectively. The RuMo-NPCSPC also boasts low Tafel slopes and ultrahigh Faradaic Efficiencies (98-100 %) in alkaline media, outperforming most noble metal-based catalysts and mercantile Pt/C. Most importantly, the catalyst demonstrates outstanding stability, signifying its potential for industrial hydrogen production. This work delivers profound perspectives into synthesizing advanced nanostructured porous carbon materials using abundant biomass resources for alkaline HER.
长期以来，贵金属基电催化剂一直是析氢反应（HER）电催化剂的首选，具有低过电位和塔菲尔斜率。然而，由于Volmer过程的动力学缓慢，它们在碱性介质中的应用受到限制。在此，我们通过自模板法开发了一种独特的生物质衍生杂原子掺杂多孔碳材料，以锚定碳化钌-钼（Ru-MoC）纳米团簇。合成的Ru-MoC负载杂原子掺杂多孔碳（RuMo-NPCSPC）对碱性HER表现出优异的电催化能力，在1 M KOH、碱性海水和模拟碱性海水中实现10 mA cm时的过电位分别低至49、85和92 mV。RuMo-NPCSPC在碱性介质中还具有低塔菲尔斜率和超高法拉第效率（98-100%），优于大多数贵金属基催化剂和市售Pt/C。最重要的是，该催化剂表现出出色的稳定性，表明其在工业制氢方面的潜力。这项工作为利用丰富的生物质资源合成用于碱性HER的先进纳米结构多孔碳材料提供了深刻的见解。
