Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, China.
Nanoscale. 2018 Jul 9;10(26):12302-12307. doi: 10.1039/c8nr02071j.
It is highly desired to design and develop highly efficient electrocatalysts for alkaline hydrogen evolution reactions. Herein, we report the development of ultrafine PtCo alloy nanoparticle decorated one-dimensional Co nanowires grown on Ti mesh (PtCo-Co/TiM). Owing to its favorable composition and structure, the PtCo-Co/TiM can deliver an ultrahigh current density of 46.5 mA cm-2 at an overpotential of 70 mV in 1.0 M KOH, superior to recently reported Pt-based electrocatalysts. This catalyst also provides excellent long-term electrochemical durability with its catalytic activity being maintained for at least 50 h.
人们非常希望设计和开发用于碱性析氢反应的高效电催化剂。在此，我们报告了在 Ti 网上生长的一维 Co 纳米线负载超细 PtCo 合金纳米粒子（PtCo-Co/TiM）的开发。由于其有利的组成和结构，PtCo-Co/TiM 在 1.0 M KOH 中仅需 70 mV 的过电势即可提供 46.5 mA cm-2 的超高电流密度，优于最近报道的基于 Pt 的电催化剂。该催化剂还具有出色的长期电化学耐久性，其催化活性至少可保持 50 h。
