摘要
采用一种在室温下快速、温和的方法制备Co-MOF-74纳米颗粒,该纳米颗粒结晶度好、形貌均匀,可在碱性介质中实现高效电催化析氧反应(OER)。相较于传统的水热合成法,通过引入三乙胺大大降低了合成所需时间,只需室温下搅拌2 h即可得到Co-MOF-74纳米颗粒(约20 nm)。该纳米催化剂呈现出更高的比表面积(760 m^(2)·g^(-1))、良好的OER活性和稳定性,在10 mA·cm^(-2)的电流密度下过电势仅为275 mV。
A fast and mild method was developed to prepare Co-MOF-74 nanoparticles with high crystallinity and uniform morphology at room temperature for efficient oxygen evolution reaction(OER)in alkaline media.Compared with the conventional hydrothermal route,the time required for synthesis was greatly reduced after introducing triethylamine:Co-MOF-74 nanoparticles(about 20 nm)could be readily available by stirring at room temperature for only 2 h.The nano-electrocatalyst exhibited a larger specific surface area(760 m^(2)·g^(-1)),excellent activities and stability for OER with an overpotential of 275 mV to achieve a current density of 10 mA·cm^(-2).
作者
贾宏男
姚娜
丛恒将
JIA Hong-Nan;YAO Na;CONG Heng-Jiang(College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2021年第11期2011-2019,共9页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.51202127)
湖北省自然科学基金(No.2016CFB382)
中央高校基本科研业务费专项资金(No.042017kf0227,2042019kf0205)资助。
关键词
金属有机框架材料
纳米颗粒
快速合成
电催化析氧反应
metal-organic frameworks
nanoparticle
rapid synthesis
electrocatalytic oxygen evolution reaction
