溶剂对Ni-MOF的形貌调控及其OER性能影响  

Effect of Solvent on Morphology and OER Performance of Ni-MOF

作　　者：曾晓东 徐京城[1] ZENG Xiao-dong;XU Jing-cheng(School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学材料与化学学院,上海200093

出　　处：《广州化学》2022年第3期52-58,共7页Guangzhou Chemistry

摘　　要：通过改变溶剂的种类和组成,系统地研究了溶剂对Ni-金属有机框架材料(Ni-MOF)合成的影响。由于DMF、EtOH和水具有竞争性,使用不同比例的DMF/EtOH/H_(2)O作为溶剂进一步控制晶体尺寸大小和形貌。每种溶剂都可以起到晶体调制器的作用,降低成核速率,从而增大晶体尺寸。为了研究形貌对Ni-MOF性能的影响,将所得不同形貌的Ni-MOF,用于析氧反应(OER)测试。目前,通过调控反应溶剂的策略,简单而有效地控制了MOF的尺寸和形貌,并可扩展到各种具有广泛潜在应用前景的纳米MOF的制备。The effects of solvents on the synthesis of Ni-MOF were studied systematically by changing the types and composition of solvents.Since DMF,EtOH and water are competitive,different proportions of DMF/EtOH/H_(2)O are used as solvents to further control the crystal size and morphology.Each solvent acts as a crystal modulator,reducing the nucleation rate and thus increasing the crystal size.In order to study the effect of morphologies on the performance of Ni-MOF,the obtained Ni-MOF with different morphologies were used for oxygen evolution reaction(OER)test.At present,the size and morphology of MOF can be controlled simply and effectively by regulating the reaction solvent,and can be extended to the preparation of various kinds of nano-MOF with a wide range of potential application prospects.

关 键 词：Ni-金属有机框架材料(Ni-MOF) 析氧反应(OER) 电催化剂 溶剂 形貌调控 

分 类 号：O646[理学—物理化学]