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- Title
Double‐Solvent Induced Ultrafine Ruthenium Nanoparticles on Porous Carbon for Highly Efficient Hydrogen Evolution Reaction.
- Authors
Zhang, Zitao; Gao, Song; Liang, Zibin; Zhang, Kexin; Guo, Huichuan; Tang, Yanqun; Qiu, Tianjie; Tabassum, Hassina; Shi, Jinming; Meng, Wei; Zou, Ruqiang
- Abstract
For hydrogen evolution reaction (HER) in alkaline solution, the state‐of‐the‐art platinum(Pt)‐based electrocatalysts showed a bunch of drawbacks including high cost, poor durability and scarcity, making it essential to develop Pt‐free electrocatalysts. In this work, we employed a double‐solvent approach to prepare a ruthenium(Ru)‐dispersed metal‐organic framework composite, which was further pyrolyzed to obtain a novel Ru/C electrocatalyst with a Ru loading of 2.7 wt %. The target electrocatalyst showed ultrahigh activity for HER in 1 M KOH that outperformed commercial Pt/C catalyst (20 wt %) with an overpotential of 27 mV @ 25 mA cm−2 and 86 mV @ 100 mA cm−2. This work not only provides a promising electrocatalyst for highly efficient HER in alkaline solution, but also offers a double‐solvent strategy for the fabrication of various metal/carbon composites with uniform distribution of ultrafine metal nanoparticles.
- Subjects
RUTHENIUM; METAL nanoparticles; ALKALINE solutions; METAL-organic frameworks; CARBON composites
- Publication
ChemCatChem, 2020, Vol 12, Issue 10, p2880
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.202000067