Min, Hyung-Ki Oh, Sohun Kim, Young Woo Kim, Eun-Jeong Kweon, Sungjoon Lee, Siyeon Park, Kwangho Jung, Kwang-Deog Cha, Seung Hyeok Yun, Gwang-Nam Park, Min Bum Shin, Chae-Ho 2024-01-19T09:31:30Z 2024-01-19T09:31:30Z 2023-06-08 2023-06 1385-8947 https://pubs.kist.re.kr/handle/201004/113683 PtZn bimetallic nanoclusters on two-dimensional (2D) molecular sieves are attractive catalysts for propane dehydrogenation (PDH) owing to the ease of molecular diffusion, resistance to deactivation by coke deposition, and electronic promotion by Zn. Here, we report the progressive formation of highly active PtZn bimetallic nanoclusters on a Pt-modified zincosilicate with 2D delaminated MWW layers (PtZn-DML) under PDH condi-tions. The exsolution of Zn from the zincosilicate DML framework during PDH generates highly dispersed PtZn active sites and reduces the Lewis acidity of zincosilicate DML support, resulting in a high propane conversion (40.3%) comparable to thermodynamic equilibrium as well as extraordinary stability with a low deactivation rate (kd < 0.002 h-1) up to 13.6 days. English Elsevier BV Progressive formation of active and stable PtZn bimetallic nanoclusters by exsolution during propane dehydrogenation Article 10.1016/j.cej.2023.143241 1 Chemical Engineering Journal, v.466 Chemical Engineering Journal 466 N scie scopus 000994057900001 2-s2.0-85154042642 Engineering, Environmental Engineering, Chemical Engineering Article CATALYTIC PERFORMANCE ZEOLITE CHEMISTRY CLUSTERS PtZn Exsolution Propane Dehydrogenation DML Zeolites