Highly-dispersed ruthenium precursors via a self-assembly-assisted synthesis of uniform ruthenium nanoparticles for superior hydrogen evolution reaction.

ABSTRACT: For the first time, highly-dispersed ruthenium precursors via a hydrogen-bond-driven melamine-cyanuric acid supramolecular complex (denoted CAM) self-assembly-assisted synthesis of uniform ruthenium nanoparticles with superior HER performance under both acidic and alkaline conditions are reported. Electrochemical tests reveal that when the current density is -10 mA cm^-2, the optimal Ru/CNO electrocatalyst could express low overpotentials of -18 mV and -46 mV, low Tafel slopes of 46 mV dec^-1 and 100 mV dec^-1, in 0.5 M H₂SO₄ and 1.0 M KOH, respectively. The remarkable HER performance could be attributed to uniform ruthenium with the aid of highly dispersed ruthenium precursors (Ru-CAM) and subsequent annealing results in uniform r

SUBMITTER: Liu X 

PROVIDER: S-EPMC9051926 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature