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- Title
Template‐Guided Regioselective Encaging of Platinum Single Atoms into Y Zeolite: Enhanced Selectivity in Semihydrogenation and Resistance to Poisoning.
- Authors
Chen, Qiang; Peng, Pai; Yang, Ganjun; Li, Yanzhi; Han, Mengxi; Tan, Yaozong; Zhang, Chengxi; Chen, Junwen; Jiang, Kun; Liu, Lei; Ye, Chenliang; Xing, Enhui
- Abstract
It is challenging to establish single metal atoms with a uniform coordination environment at targeted sites of a zeolite. In this study, single platinum atoms were selectively encaged in the six‐membered rings of sodalite (SOD) cages within Y zeolite using a template‐guiding strategy. During the in situ synthesis process, template molecules were designed to occupy supercages and thereby force coordinated platinum species into SOD cages. Subsequent control of the post‐treatment conditions yielded the Y zeolite with selectively encaged single platinum atoms, denoted Pt@Y‐SOD. The Pt@Y‐SOD catalyst had good stability and excellent catalytic selectivity in the semihydrogenation reaction, and it exhibited interesting thiophene and carbon monoxide resistance in this transformation because interactions with these poisons are weakened by the configuration of the encaged single platinum atoms.
- Subjects
ZEOLITE Y; PLATINUM; ATOMS; POISONING; SODALITE; POISONS; OXIDATION of methanol; OXIDATION of carbon monoxide
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 35, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202205978