DICP OpenIR
Controllable growth of defect-free zeolite protective layer on the surface of Pd membrane for chemical stability enhancement
Yu, Jiafeng1; Zhang, Jixin1; Bao, Chun1; Zhang, Zhe1,2; Li, Hui1; Xu, Hengyong1
关键词Zeolite Membrane Synthesis Protective Layer Pd Membrane Chemical Stability Hydrogen Separation And Purification
刊名MICROPOROUS AND MESOPOROUS MATERIALS
2017-05-15
DOI10.1016/j.micromeso.2017.02.063
244页:119-126
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]ASYMMETRIC ALUMINA SUPPORTS ; THIN-FILM MEMBRANE ; MOLECULAR-SIEVE MEMBRANE ; MASS-FLOW RESISTANCE ; COMPOSITE MEMBRANE ; SI/AL RATIO ; SEPARATION PROPERTIES ; HYDROGEN SEPARATION ; SECONDARY GROWTH ; FACILE SYNTHESIS
英文摘要Pd membranes play a critical role in hydrogen purification due to excellent hydrogen permeability and selectivity. However, the poor chemical stability of Pd membranes when exposed to inclusion gases or organic reactants severely restricts their commercial applications. Herein, a novel strategy is developed to synthesize a thin and compact zeolite layer on the surface of Pd membrane which acts as an "armor" to protect it from being damaged by poisoning species. The results show that the zeolite membrane was NaA type and defect-free when using Si/AI ratio of 7.5 and silica sol as Si source after two-step hydro thermal synthesis. The variations of H-2 permeance is monitored when Pd and zeolite-Pd composite membranes are exposed to 40% (ethanol/H2O) or 0.2% tetrahydrofuran (THF)/10% N-2 in hydrogen atmosphere. Reactions between ethanol and water on Pd active sites are undetected, indicating the reactants are completely out of contact with Pd membrane in the presence of zeolite protective layer. Especially, compared to pure Pd membrane, almost 80% H-2 permeance decline is constrained by the zeolite "armor" at 350 degrees C and W/E = 6. Moreover, the zeolite protective layer obviously enhances the chemical stability of Pd membrane by suppressing THE cracking and Pd active sites coverage. (C) 2017 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000399515500016
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152328
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Yu, Jiafeng,Zhang, Jixin,Bao, Chun,et al. Controllable growth of defect-free zeolite protective layer on the surface of Pd membrane for chemical stability enhancement[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,244:119-126.
APA Yu, Jiafeng,Zhang, Jixin,Bao, Chun,Zhang, Zhe,Li, Hui,&Xu, Hengyong.(2017).Controllable growth of defect-free zeolite protective layer on the surface of Pd membrane for chemical stability enhancement.MICROPOROUS AND MESOPOROUS MATERIALS,244,119-126.
MLA Yu, Jiafeng,et al."Controllable growth of defect-free zeolite protective layer on the surface of Pd membrane for chemical stability enhancement".MICROPOROUS AND MESOPOROUS MATERIALS 244(2017):119-126.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Yu, Jiafeng]的文章
[Zhang, Jixin]的文章
[Bao, Chun]的文章
百度学术
百度学术中相似的文章
[Yu, Jiafeng]的文章
[Zhang, Jixin]的文章
[Bao, Chun]的文章
必应学术
必应学术中相似的文章
[Yu, Jiafeng]的文章
[Zhang, Jixin]的文章
[Bao, Chun]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。