TY - JOUR
T1 - The First Study on the Reactivity of Water Vapor in Metal–Organic Frameworks with Platinum Nanocrystals
AU - Ogiwara, Naoki
AU - Kobayashi, Hirokazu
AU - Concepción, Patricia
AU - Rey, Fernando
AU - Kitagawa, Hiroshi
N1 - Funding Information:
This work was supported by JST PRESTO (No. JPMJPR1514), JSPS Grants-in-Aid for Scientific Research (B) (No. 17750056), JSPS Research Fellow (No. 17J10099) and Spanish Government-MINECO through “Severo Ochoa” Excellence Programme (SEV-2016-0683). The synchrotron radiation experiments were performed at the BL14B2 of SPring-8 with the approval of JASRI (Proposal No. 2018A1753).
Funding Information:
This work was supported by JST PRESTO (No. JPMJPR1514), JSPS Grants-in-Aid for Scientific Research (B) (No. 17750056), JSPS Research Fellow (No. 17J10099) and Spanish Government-MINECO through ?Severo Ochoa? Excellence Programme (SEV-2016-0683). The synchrotron radiation experiments were performed at the BL14B2 of SPring-8 with the approval of JASRI (Proposal No. 2018A1753).
Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/8/19
Y1 - 2019/8/19
N2 - We first studied the reactivity of H2O vapor in metal–organic frameworks (MOFs) with Pt nanocrystals (NCs) through the water–gas shift (WGS) reaction. A water-stable MOF, UiO-66, serves as a highly effective support material for the WGS reaction compared with ZrO2. The origin of the high catalytic performance was investigated using in situ IR spectroscopy. In addition, from a comparison of the catalytic activities of Pt on UiO-66, where Pt NCs are located on the surface of UiO-66 and Pt@UiO-66, where Pt NCs are coated with UiO-66, we found that the competitive effects of H2O condensation and diffusion in the UiO-66 play important roles in the catalytic activity of Pt NCs. A thinner UiO-66 coating further enhanced the WGS reaction activity of Pt NCs by minimizing the negative effect of slow H2O diffusion in UiO-66.
AB - We first studied the reactivity of H2O vapor in metal–organic frameworks (MOFs) with Pt nanocrystals (NCs) through the water–gas shift (WGS) reaction. A water-stable MOF, UiO-66, serves as a highly effective support material for the WGS reaction compared with ZrO2. The origin of the high catalytic performance was investigated using in situ IR spectroscopy. In addition, from a comparison of the catalytic activities of Pt on UiO-66, where Pt NCs are located on the surface of UiO-66 and Pt@UiO-66, where Pt NCs are coated with UiO-66, we found that the competitive effects of H2O condensation and diffusion in the UiO-66 play important roles in the catalytic activity of Pt NCs. A thinner UiO-66 coating further enhanced the WGS reaction activity of Pt NCs by minimizing the negative effect of slow H2O diffusion in UiO-66.
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U2 - 10.1002/anie.201905667
DO - 10.1002/anie.201905667
M3 - Article
C2 - 31267626
AN - SCOPUS:85069834228
SN - 1433-7851
VL - 58
SP - 11731
EP - 11736
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 34
ER -