气候变化领域集成服务门户(CCPortal): Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol

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DOI	10.1126/science.aaw1108
	Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol
	Jin Z.; Wang L.; Zuidema E.; Mondal K.; Zhang M.; Zhang J.; Wang C.; Meng X.; Yang H.; Mesters C.; Xiao F.-S.
发表日期	2020
ISSN	0036-8075
起始页码	193
结束页码	197
卷号	367 期号:6474
英文摘要	Selective partial oxidation of methane to methanol suffers from low efficiency. Here, we report a heterogeneous catalyst system for enhanced methanol productivity in methane oxidation by in situ generated hydrogen peroxide at mild temperature (70°C). The catalyst was synthesized by fixation of AuPd alloy nanoparticles within aluminosilicate zeolite crystals, followed by modificatio of the external surface of the zeolite with organosilanes. The silanes appear to allow diffusion of hydrogen, oxygen, and methane to the catalyst active sites, while confining the generated peroxide there to enhance its reaction probability. At 17.3% conversion of methane, methanol selectivity reached 92%, corresponding to methanol productivity up to 91.6 millimoles per gram of AuPd per hour. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	aluminosilicate zeolite carbon dioxide carbon monoxide formaldehyde gold nanoparticle hydrogen peroxide methane methanol palladium nanoparticle silicon dioxide unclassified drug zeolite aluminosilicate catalyst diffusion hydrogen hydrogen peroxide methane methanol oxidation oxygen Article carbon nuclear magnetic resonance catalyst chemical reaction concentration (parameter)diffusion energy dispersive X ray spectroscopy Fourier transform infrared spectroscopy hydrophobicity isotherm nanoencapsulation nuclear magnetic resonance oxidation priority journal scanning electron microscopy silicon nuclear magnetic resonance stoichiometry synthesis transmission electron microscopy X ray crystallography
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133795
推荐引用方式 GB/T 7714	Jin Z.,Wang L.,Zuidema E.,et al. Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol[J]. Science,2020,367(6474).
APA	Jin Z..,Wang L..,Zuidema E..,Mondal K..,Zhang M..,...&Xiao F.-S..(2020).Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol.,367(6474).
MLA	Jin Z.,et al."Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol".367.6474(2020).