High Ammonia Uptake of a Metal-Organic Framework Adsorbent in a Wide Pressure Range

Title
High Ammonia Uptake of a Metal-Organic Framework Adsorbent in a Wide Pressure Range
Authors
이정훈김대원강동원강민정채종혁채윤석최두산윤홍렬홍창섭
Issue Date
2020-12
Publisher
Angewandte Chemie international edition
Citation
VOL 59, NO 50-22536
Abstract
Although numerous porous adsorbents have been investigated for NH3 capture applications, these materials often exhibit insufficient NH3 uptake, low NH3 affinity at the ppm level, and poor chemical stability against wet NH3 conditions. The NH3 capture properties of M2(dobpdc) complexes (M=Mg2+, Mn2+, Co2+, Ni2+, and Zn2+; dobpdc4?=4,4­dioxidobiphenyl­3,3­dicarboxylate) that contain open metal sites is presented. The NH3 uptake of Mg2(dobpdc) at 298?K was 23.9?mmol?g?1 at 1?bar and 8.25?mmol?g?1 at 570?ppm, which are record high capacities at both pressures among existing porous adsorbents. The structural stability of Mg2(dobpdc) upon exposure to wet NH3 was superior to that of the other M2(dobpdc) and the frameworks tested. Overall, these results demonstrate that Mg2(dobpdc) is a recyclable compound that exhibits significant NH3 affinity and capacity, making it a promising candidate for real­world NH3­capture applications.
URI
http://pubs.kist.re.kr/handle/201004/72460
ISSN
1433-7851
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE