Combination of reduction-deposition Pd loading and zeolite dealumination as an effective route for promoting methane combustion over Pd/Beta

• DOI: 10.1016/j.cattod.2020.07.005
• Publication Date: 2020-07-17T16:32:41Z
• Authors: Liling Zhang; Junfei Chen; Xiaomin Guo; Shumeng Yin; Meng Zhang; Zebao Rui
• Keywords: Noble metal; Catalytic combustion; Space velocity; Thermal Stability; Selective catalytic reduction; Deposition

Abstract Catalytic removal of trace methane emission over supported Pd catalysts has drawn much attention over the years. For practical application, high activity, excellent thermal stability and outstanding water resistance are always desirable. Herein, we report a facile route for simultaneously improving the activity, stability and water resistance of the zeolite supported Pd catalyst through the combination of reduction-deposition Pd loading and support dealumination. This combination strategy leads to highly dispersed and stable PdO nanoparticles with strong interaction with the Beta support, rich active Pdn+ (0