Au@Snβ zeolite as stable and active catalyst for the conversion of glycerol to methyl lactate

IF 6.5 1区 化学 Q2 CHEMISTRY, PHYSICAL Journal of Catalysis Pub Date : 2024-12-19 DOI:10.1016/j.jcat.2024.115913
Shengqiang Zhou, Tianliang Lu, Lipeng Zhou, Xiaomei Yang
{"title":"Au@Snβ zeolite as stable and active catalyst for the conversion of glycerol to methyl lactate","authors":"Shengqiang Zhou, Tianliang Lu, Lipeng Zhou, Xiaomei Yang","doi":"10.1016/j.jcat.2024.115913","DOIUrl":null,"url":null,"abstract":"Au/Sn-zeolite catalysts showed high activity for selective conversion of glycerol to methyl lactate, but suffered from poor stability under the reaction conditions in our previous report (ACS Catal. 2017, 7, 7274). Encapsulation of Au nanoparticles within zeolite is a promising strategy to enhance their stability in catalytic reaction. Herein, one-pot synthesis of Au@Snβ was achieved by a mercaptosilane-assisted hydrothermal synthesis method. The protocol involves crystallization of Snβ synthesis gels around coordinated Au precursors, resulting in Snβ framework constraining Au coordination complexes. The confinement of small (∼2.89 nm) and uniform Au particles within Snβ was achieved. The bifunctional catalyst composed of oxidative sites (Au) and Lewis acid sites (Sn) gave 77.3 % methyl lactate (MLA) yield from the base-free selective conversion of glycerol (GLY). The TOF value of Au@Snβ was higher than that of Au/Sn-zeolite in our previous report. Moreover, the special structure protects Au nanoparticles from sintering or agglomeration and improves the stability and recyclability in selective oxidation of GLY to MLA.","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"18 1","pages":""},"PeriodicalIF":6.5000,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Catalysis","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1016/j.jcat.2024.115913","RegionNum":1,"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

Au/Sn-zeolite catalysts showed high activity for selective conversion of glycerol to methyl lactate, but suffered from poor stability under the reaction conditions in our previous report (ACS Catal. 2017, 7, 7274). Encapsulation of Au nanoparticles within zeolite is a promising strategy to enhance their stability in catalytic reaction. Herein, one-pot synthesis of Au@Snβ was achieved by a mercaptosilane-assisted hydrothermal synthesis method. The protocol involves crystallization of Snβ synthesis gels around coordinated Au precursors, resulting in Snβ framework constraining Au coordination complexes. The confinement of small (∼2.89 nm) and uniform Au particles within Snβ was achieved. The bifunctional catalyst composed of oxidative sites (Au) and Lewis acid sites (Sn) gave 77.3 % methyl lactate (MLA) yield from the base-free selective conversion of glycerol (GLY). The TOF value of Au@Snβ was higher than that of Au/Sn-zeolite in our previous report. Moreover, the special structure protects Au nanoparticles from sintering or agglomeration and improves the stability and recyclability in selective oxidation of GLY to MLA.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Au@Snβ 沸石作为甘油转化为乳酸甲酯的稳定活性催化剂
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Catalysis
Journal of Catalysis 工程技术-工程:化工
CiteScore
12.30
自引率
5.50%
发文量
447
审稿时长
31 days
期刊介绍: The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.
期刊最新文献
Enhanced glucose-to-5-hydroxymethylfurfural transformation activity over CePO4 catalyst: Insights into crystal structure, acidic property and reaction pathway Role of copper and cerium species in Cu/CeZSM catalysts for direct methane to methanol reaction: Insights of structure–activity relationship Air termination of hydrocarbon-reduced Cr(Vi)/silica Dispersity-dependent activity of Pd on bare and pre-oxidized Cu(1 1 1) surface Au@Snβ zeolite as stable and active catalyst for the conversion of glycerol to methyl lactate
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1