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One-pot synthesis of Pt-Sn bimetallic mesoporous alumina catalysts with worm-like pore structure for n-butane dehydrogenation
Journal of Industrial and Engineering Chemistry ( IF 6.1 ) Pub Date : 2018-07-01 , DOI: 10.1016/j.jiec.2018.02.038
Prakash Natarajan , Hassnain Abbas Khan , Sungho Yoon , Kwang-Deog Jung

Abstract Five PtSn catalysts with different PtSn particle sizes were prepared using one-pot and co-impregnation methods for n-butane dehydrogenation. The turnover frequency (TOF) of the prepared catalysts is proportional to the PtSn metal particle size, while the selectivity to n-butenes is inversely proportional to that. The PtSn(OMSO) catalyst with a worm-like pore structure has the smallest PtSn particle size and the largest metal surface area, which exhibits the highest selectivity and specific activity among five PtSn catalysts. Additionally, the PtSn(OMSO) catalyst exhibits the highest stability. PtSn particles on PtSn(OMSO) are stabilized in the pores of the worm-like structure.

中文翻译:

用于正丁烷脱氢的蠕虫状孔结构Pt-Sn双金属介孔氧化铝催化剂的一锅法合成

摘要 采用一锅法和共浸渍法制备了五种不同PtSn粒径的PtSn催化剂用于正丁烷脱氢。所制备催化剂的周转频率(TOF)与 PtSn 金属粒径成正比,而对正丁烯的选择性与其成反比。具有蠕虫状孔结构的PtSn(OMSO)催化剂具有最小的PtSn粒径和最大的金属表面积,在五种PtSn催化剂中表现出最高的选择性和比活性。此外,PtSn(OMSO)催化剂表现出最高的稳定性。PtSn(OMSO) 上的 PtSn 颗粒稳定在蠕虫状结构的孔中。
更新日期:2018-07-01
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