PtSn nanoparticles anchored on monolayer ZrO2 in SBA-15 for synergistic catalytic efficient propane dehydrogenation

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-01-03 DOI:10.1016/j.apcata.2024.120099

Chaojie Zhang , Jiahao Zhou , Jicheng Zhou

{"title":"PtSn nanoparticles anchored on monolayer ZrO2 in SBA-15 for synergistic catalytic efficient propane dehydrogenation","authors":"Chaojie Zhang , Jiahao Zhou , Jicheng Zhou","doi":"10.1016/j.apcata.2024.120099","DOIUrl":null,"url":null,"abstract":"<div><div>Propane dehydrogenation received more and more attention with the increase in propylene demand and the growing extraction of shale gas. However, traditional catalysts require feed dilution with hydrogen or inert gas, thereby lowering per-pass propylene productivity. We report here, a novel hybrid nanostructure catalyst (denoted as PtSn/@-ZrO<sub>2</sub>/SBA-15) for PDH with high initial propylene formation rate (15.15 mol·g<sub>Pt</sub><sup>−1</sup>·h<sup>−1</sup>) under pure propane feed, excellent propylene selectivity (> 95 %), and especially good stability even if the propane conversion closed to thermodynamic limits. During the reaction process, the tin species were effectively stabilized. XPS, H<sub>2</sub>-TPR and a series of characterizations indicated that those superior activities and appreciable long-term stability are stemmed from synergistic catalysis and strong interface electronic effect between PtSn nanoparticles and non-crystal semiconductor film (monolayer-dispersed ZrO<sub>2</sub>) in SBA-15. Our findings provide a new perspective on the preparation of redox catalysts.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"692 ","pages":"Article 120099"},"PeriodicalIF":4.7000,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X24005441","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Propane dehydrogenation received more and more attention with the increase in propylene demand and the growing extraction of shale gas. However, traditional catalysts require feed dilution with hydrogen or inert gas, thereby lowering per-pass propylene productivity. We report here, a novel hybrid nanostructure catalyst (denoted as PtSn/@-ZrO₂/SBA-15) for PDH with high initial propylene formation rate (15.15 mol·g_Pt⁻¹·h⁻¹) under pure propane feed, excellent propylene selectivity (> 95 %), and especially good stability even if the propane conversion closed to thermodynamic limits. During the reaction process, the tin species were effectively stabilized. XPS, H₂-TPR and a series of characterizations indicated that those superior activities and appreciable long-term stability are stemmed from synergistic catalysis and strong interface electronic effect between PtSn nanoparticles and non-crystal semiconductor film (monolayer-dispersed ZrO₂) in SBA-15. Our findings provide a new perspective on the preparation of redox catalysts.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.