Research on the electrocatalytic reactions of zeolitic imidazolate frameworks (ZIFs) and their derivatives.

Abstract

In the present era, the world is deeply entrenched in a severe air pollution predicament. Particularly, the massive emissions of harmful gases such as greenhouse gases have imposed a heavy burden on the ecological environment. However, the cutting-edge technology of electrocatalysis holds the promise of effectively reducing these harmful emissions through specific chemical reactions, thus offering a new solution to improve air quality. This research focuses on utilizing metal-organic frameworks, especially the zeolitic imidazolate frameworks, to meticulously fabricate special catalysts. Three representative types, namely ZIF-67, ZIF-67@Ni, and ZIF-67@DCD, are selected. Through a series of complex and rigorous synthesis, characterization, and comprehensive performance tests, including linear sweep voltammetry, cyclic voltammetry, and current intensity tests, their catalytic efficiencies are thoroughly investigated. The results reveal that, due to the addition of nickel, ZIF-67@Ni exhibits outstanding catalytic activity and stability. This fully demonstrates the enormous potential of customized ZIF-based materials in enhancing electrocatalytic performance, which is expected to bring significant breakthroughs in the fields of hydrogen energy utilization and environmental remediation and open a new chapter in green development.