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Updated: Sep 26, 2025
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Electron-rich ruthenium encapsulated in nitrogen-doped carbon for efficient hydrogen evolution reaction over the
Jingwen Ma1, Juan Wang2, Jian Liu2
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
Abstract:
The development of a low-cost and high-stability catalyst with Platinum-like electrocatalytic performance is significant for the hydrogen evolution reaction (HER) from water electrolysis. Herein, ultrafine ruthenium nanoparticles encapsulated in Nitrogen(N)-doped carbon anchored on graphene sheets are fabricated and utilized as HER electrocatalysts. Characterization results verify that the strong interaction between the N-doped carbon shell and the Ru core leads to charge redistributions, promoting Ru in a more active electron-rich state. Therefore, the catalyst exhibits excellent activity over a wide pH range, which only needs 16, 23 and 72 mV to drive a current density of 10 mA cm-2 in alkaline, acidic and neutral electrolytes, respectively. In addition, the N-doped carbon shell protects the Ru nanoparticles from aggregation and decomposition in the extreme electrolyte, contributing to the excellent stability.
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