Facile synthesis of ultrafine RuTe2 nanoparticles supported on B, N co-doped graphene as an efficient HER catalyst
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY(2024)
摘要
Recently, ruthenium telluride (RuTe2) has received widespread attention as an effective HER catalyst. In this work, ultrafine and well-dispersed RuTe2 nanoparticles anchored on nitrogen and boron co-doped graphene (RuTe2/BNG) was developed by freeze-drying and facile pyrolysis method, demonstrating a brilliant HER performance. The overpotential of RuTe2/BNG at the current density of 10 mA cm-2 is only 34 and 16 mV in 0.5 M H2SO4 and 1.0 M KOH solution, respectively. More importantly, the RuTe2/BNG can also maintain significantly robust HER stability during long-term chronopotentiometry measurements. The outstanding HER activity of RuTe2/BNG should be ascribed to its properties with abundant defects, large specific surface area, high electronic conductivity and short mass transfer path. Our work offers a new path to fabricate efficient HER catalysts by homogeneously anchoring RuTe2 on B, N co-doped graphene.
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关键词
Ruthenium telluride,N co -doped graphene,Hydrogen evolution reaction
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