Highly active electrocatalyst cobalt-carbide nanoparticles synthesized by wet-chemistry method for hydrogen evolution reaction

Yi Heng Lin, Po Chia Huang, Sheng Chang Wang, Jow Lay Huang

研究成果: Article

摘要

Hydrogen is a promising alternative energy without greenhouse gas emissions. The transition metal carbides (TMCs) are considered a sustainable alternatives to noble metals in catalysis. Among the TMCs, CoxC (x = 2, 3) nanoparticles (NPs) act as an excellent electrocatalyst for hydrogen evolution reaction (HER) by water splitting. In our report, CoxC nanocomposites were synthesized by wet chemistry method using cobalt (II) acetate, sodium hydroxide as precursors and triethylene glycol as solvent. In addition, Co2C NPs were synthesized by similar wet chemistry method using cobalt (II) acetate as precursors and triethylene glycol, oleylamine as solvent. The cobalt carbide NPs exhibited high electrocatalytic activity. CoxC nanocomposites performed a -0.33 V onset potential and 91 mV/dec Tafel slope, while the Co2C NPs exhibited a better performance of -0.27 V and 60 mV/dec, respectively.

原文English
文章編號2040022
期刊Modern Physics Letters B
34
發行號7-9
DOIs
出版狀態Published - 2020 三月 30

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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