Deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes for enhanced H2/N2 separation

Ji Jiang; Syed Islam; Qiaobei Dong; Fanglei Zhou; Shiguang Li; Miao Yu

doi:10.1016/j.ijhydene.2020.09.087

Deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes for enhanced H₂/N₂ separation

Ji Jiang, Syed Islam, Qiaobei Dong, Fanglei Zhou, Shiguang Li, Miao Yu

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Hydrogen energy has attracted great attention due to its properties of high energy transferring efficiency and zero pollution emission. Zeolite membranes are promising candidates for H₂ separation because of their uniform, molecular-sized pores and high thermal and mechanical stabilities. However, thicker membranes or modification treatments are often necessary to eliminate the defects formed during synthesis and post calcination, leading to low gas permeance. Herein, we reported the deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes to improve H₂ separation performance. H₂/N₂ selectivity was greatly increased by deposition of an ultrathin Pd coating on SAPO-34 membranes, while maintaining similar H₂ permeance. This might be attributed to the dissociative adsorption and associative desorption of H₂ on Pd, as well as fast diffusion of H₂ through ultrathin Pd coating. We also noticed that excessive Pd deposition would lead to the formation of cracks on SAPO-34 membranes, leading to deteriorated membrane performance.

Original language	English
Pages (from-to)	33648-33656
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	58
DOIs	https://doi.org/10.1016/j.ijhydene.2020.09.087
State	Published - Nov 27 2020
Externally published	Yes

Funding

We thank the Advanced Research Projects Agency-Energy (ARPA-E) of Department of Energy (DOE) for the financial support under contract of DE-AR0000931 ; Rensselaer Polytechnic Institute (RPI) startup funds. We also sincerely thank Prof. Xuehong Gu at Nanjing Tech University for providing the α-Al 2 O 3 hollow fiber support.

Funders	Funder number
U.S. Department of Energy	DE-AR0000931
Advanced Research Projects Agency - Energy
Rensselaer Polytechnic Institute

Keywords

H/N separation
Pd coating
Pd/SAPO-34 composite membrane
Zeolite membrane

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2020.09.087

Cite this

@article{51a611f1c0c74220855616d4ded8a0a1,

title = "Deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes for enhanced H2/N2 separation",

abstract = "Hydrogen energy has attracted great attention due to its properties of high energy transferring efficiency and zero pollution emission. Zeolite membranes are promising candidates for H2 separation because of their uniform, molecular-sized pores and high thermal and mechanical stabilities. However, thicker membranes or modification treatments are often necessary to eliminate the defects formed during synthesis and post calcination, leading to low gas permeance. Herein, we reported the deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes to improve H2 separation performance. H2/N2 selectivity was greatly increased by deposition of an ultrathin Pd coating on SAPO-34 membranes, while maintaining similar H2 permeance. This might be attributed to the dissociative adsorption and associative desorption of H2 on Pd, as well as fast diffusion of H2 through ultrathin Pd coating. We also noticed that excessive Pd deposition would lead to the formation of cracks on SAPO-34 membranes, leading to deteriorated membrane performance.",

keywords = "H/N separation, Pd coating, Pd/SAPO-34 composite membrane, Zeolite membrane",

author = "Ji Jiang and Syed Islam and Qiaobei Dong and Fanglei Zhou and Shiguang Li and Miao Yu",

note = "Publisher Copyright: {\textcopyright} 2020 Hydrogen Energy Publications LLC",

year = "2020",

month = nov,

day = "27",

doi = "10.1016/j.ijhydene.2020.09.087",

language = "English",

volume = "45",

pages = "33648--33656",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

number = "58",

}

TY - JOUR

T1 - Deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes for enhanced H2/N2 separation

AU - Jiang, Ji

AU - Islam, Syed

AU - Dong, Qiaobei

AU - Zhou, Fanglei

AU - Li, Shiguang

AU - Yu, Miao

PY - 2020/11/27

Y1 - 2020/11/27

N2 - Hydrogen energy has attracted great attention due to its properties of high energy transferring efficiency and zero pollution emission. Zeolite membranes are promising candidates for H2 separation because of their uniform, molecular-sized pores and high thermal and mechanical stabilities. However, thicker membranes or modification treatments are often necessary to eliminate the defects formed during synthesis and post calcination, leading to low gas permeance. Herein, we reported the deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes to improve H2 separation performance. H2/N2 selectivity was greatly increased by deposition of an ultrathin Pd coating on SAPO-34 membranes, while maintaining similar H2 permeance. This might be attributed to the dissociative adsorption and associative desorption of H2 on Pd, as well as fast diffusion of H2 through ultrathin Pd coating. We also noticed that excessive Pd deposition would lead to the formation of cracks on SAPO-34 membranes, leading to deteriorated membrane performance.

AB - Hydrogen energy has attracted great attention due to its properties of high energy transferring efficiency and zero pollution emission. Zeolite membranes are promising candidates for H2 separation because of their uniform, molecular-sized pores and high thermal and mechanical stabilities. However, thicker membranes or modification treatments are often necessary to eliminate the defects formed during synthesis and post calcination, leading to low gas permeance. Herein, we reported the deposition of an ultrathin palladium (Pd) coating on SAPO-34 membranes to improve H2 separation performance. H2/N2 selectivity was greatly increased by deposition of an ultrathin Pd coating on SAPO-34 membranes, while maintaining similar H2 permeance. This might be attributed to the dissociative adsorption and associative desorption of H2 on Pd, as well as fast diffusion of H2 through ultrathin Pd coating. We also noticed that excessive Pd deposition would lead to the formation of cracks on SAPO-34 membranes, leading to deteriorated membrane performance.

KW - H/N separation

KW - Pd coating

KW - Pd/SAPO-34 composite membrane

KW - Zeolite membrane

UR - http://www.scopus.com/inward/record.url?scp=85091952462&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2020.09.087

DO - 10.1016/j.ijhydene.2020.09.087

M3 - Article

AN - SCOPUS:85091952462

SN - 0360-3199

VL - 45

SP - 33648

EP - 33656

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 58

ER -