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Updated: May 3, 2026
A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
Ru-Mo2C nanoclusters anchored on N, P crownshaft-derived porous carbon for efficient hydrogen evolution in alkaline
Daniel Kobina Sam1, Zhen Tang2, Yan Cao1
1School 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.
Abstract:
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-Mo2C) nanoclusters. The synthesized Ru-Mo2C-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-2 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.
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