Propane dehydrogenation (PDH), employing Pt- or Cr-based catalysts, represents an emerging industrial route for propylene production. Due to the scarcity of platinum and the toxicity of chromium, alternative PDH catalysts are being pursued. Herein, we report the construction of Zn-containing zeolite catalysts, namely Zn@S-1, for PDH reaction. Well-isolated zinc cations are successfully trapped and stabilized by the Si-OH groups in S-1 zeolites via in-situ hydrothermal synthesis. The as-prepared Zn@S-1 catalysts exhibit good dehydrogenation activity, high propylene selectivity, and regeneration capability in PDH reaction under employed conditions. The in-situ partial reduction of zinc species is observed and the partially reduced zinc cations are definitely identified as the active sites for PDH reaction.

使用基于Pt或Cr的催化剂进行丙烷脱氢（PDH），代表了丙烯生产的新兴工业路线。由于铂的缺乏和铬的毒性，正在寻求替代的PDH催化剂。本文中，我们报道了用于PDH反应的含锌沸石催化剂Zn @ S-1的构建。通过原位水热合成，良好隔离的锌阳离子被S-1沸石中的Si-OH基团成功捕获并稳定。所制备的Zn @ S-1催化剂在所采用的条件下在PDH反应中表现出良好的脱氢活性，高的丙烯选择性和再生能力。在原位 观察到锌物种的部分还原，并且部分还原的锌阳离子被确定为PDH反应的活性位点。