Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Chemical Environment Control and Enhanced Catalytic Performance of Platinum Nanoparticles Embedded in Nanocrystalline Metal-Organic Frameworks

Authors
Choi, Kyung MinNa, KyungsuSomorjai, Gabor A.Yaghi, Omar M.
Issue Date
Jun-2015
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.137, no.24, pp 7810 - 7816
Pages
7
Journal Title
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume
137
Number
24
Start Page
7810
End Page
7816
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147160
DOI
10.1021/jacs.5b03540
ISSN
0002-7863
1520-5126
Abstract
Chemical environment control of the metal nanoparticles (NPs) embedded in nanocrystalline metal-organic frameworks (nMOFs) is useful in controlling the activity and selectivity of catalytic reactions. In this report, organic linkers with two functional groups, sulfonic acid (-SO3H, S) and ammonium (-NH3(+), N), are chosen as strong and weak acidic functionalities, respectively, and then incorporated into a MOF [Zr6O4(OH)(4)(BDC)(6) (BDC = 1,4-benzenedicarboxylate), termed UiO-66] separately or together in the presence of 2.5 nm Pt NPs to build a series of Pt NPs-embedded in UiO-66 (Pt subset of nUiO-66). We find that these chemical functionalities play a critical role in product selectivity and activity in the gas-phase conversion of methylcyclopentane (MCP) to acyclic isomer, olefins, cyclohexane, and benzene. Pt subset of nUiO-66-S gives the highest selectivity to C-6-cyclic products (62.4% and 28.6% for cyclohexane and benzene, respectively) without acyclic isomers products. Moreover, its catalytic activity was doubled relative to the nonfunctionalized Pt subset of nUiO-66. In contrast, Pt subset of nUiO-66-N decreases selectivity for C-6-cyclic products to <50% while increases the acyclic isomer selectivity to 38.6%. Interestingly, the Pt subset of nUiO-66-SN containing both functional groups gave different
Files in This Item
Go to Link
Appears in
Collections
공과대학 > 화공생명공학부 > 1. Journal Articles

qrcode

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

Related Researcher

Researcher Choi, Kyung Min photo

Choi, Kyung Min
공과대학 (화공생명공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE