青岛科技大学主页平台管理系统刘光波--中文主页-- Porous CoP/Co2P heterostructure for efficient hydrogen evolution andapplicationin magnesium/seawater battery

Porous CoP/Co2P heterostructure for efficient hydrogen evolution andapplicationin magnesium/seawater battery: 点击次数：; 关键字：Template-free; CoP/Co2P heterostructures; Porous structure; Hydrogen evolution reaction; Magnesium/s; 摘要：Hydrogen evolution reaction (HER), serving as the cathodic reaction of magnesium (Mg)/seawater battery, could not only produce clean hydrogen directly from seawater but also generate electricity. However, the kinetics of the hydrogen evolution directly from the neutral seawater is sluggish, and leads to unsatisfied HER and battery performance. Herein, a unique porous CoP/Co2P heterostructure electrode was fabricated via a template-free strategy. As demonstrated, the optimized porous CoP/Co2P heterostructure exhibits superior activity for HER, with low overpotential of 87, 133 and 454 mV at 10 mA cm(-2) in acidic, alkaline and seawater media, respectively. An Mg/seawater battery fabricated with the porous CoP/Co2P hetemstructure cathode displays promising performance, with a peak power density of 6.28 mW cm(-2), approaching to the platinum cathode, and a satisfied stability in a 24 h stability test, which is the best non-noble metal cathode reported. The superior battery performance could be attributed to the large active interfaces and the high specific surface area of the porous CoP/Co2P heterostructure electrode, which guarantee a low polarization of the cathodic HER.; 卷号：486; 期号：无; 是否译文：否

上一条： Amine-ligand modulated ruthenium nanoclusters as a superior bi-functional hydrogen electrocatalyst in alkaline media

下一条： Porous CoP/Co2P heterostructure for efficient hydrogen evolution andapplicationin magnesium/seawater battery