A joint research team, co-led by Professor Yang Qingyuan from the School of Chemical Engineering and Technology at Xi'an Jiaotong University and Professor Yang Sihai from Peking University, has unveiled a novel approach for selective ethane adsorption, leveraging the 'molecular gating' effect. The team ingeniously designed and synthesized a zinc-adenine-based metal-organic framework material, named ZAI-3N, which integrates amino functional groups within its pores to form a temperature-responsive 'molecular gate' mechanism. At a temperature of 313K and a pressure of 1 bar, ZAI-3N exhibited an impressive ethane/ethylene adsorption ratio of up to 10.6 and an IAST selectivity of 11.7. This remarkable performance enabled the direct production of polymer-grade ethylene with a purity surpassing 99.4%, coupled with outstanding cyclic stability. Moreover, this innovative strategy holds promise for application in other industrial separation processes, such as propane/propylene separation, offering fresh perspectives for the development of next-generation adsorption materials. The research outcomes were published in the esteemed journal Angewandte Chemie International Edition.