List of Articles Yerbol Tileuberdi Article 1 - Co Catalysts Supported on Activated Clay for Selective Hydrogenation of Acetylene to Ethylene Aizat Aitugan Sandugash Tanirbergenova Yerbol Tileuberdi Onuralp Yucel Dildara Tugelbayeva Zulkhair Mansurov Iranian Journal of Catalysis , Issue 5 , Year , Autumn 2021