Selective production of hydrogen isotope gases via PdAg-catalyzed dehydrogenation of formic acid in D2O assisted by surface-grafted amine groups

Mori, Kohsuke; Konishi, Atsushi; Fujita, Tatsuya et al.

Materials Today Sustainability, 2023, 22, 100407

Number of Access:393（2025-08-13 22:21 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/94006

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Title
Selective production of hydrogen isotope gases via PdAg-catalyzed dehydrogenation of formic acid in D2O assisted by surface-grafted amine groups
Creator
NRID
1000090423087 1000090423087
ORCID
0000-0003-3915-4528 0000-0003-3915-4528
researchmap permalink
7000018582 7000018582
Scopus Author ID
35426128700 35426128700
CreatorName
Mori, Kohsuke
CreatorName
Konishi, Atsushi
CreatorName
Fujita, Tatsuya
NRID
1000040200688 1000040200688
researchmap permalink
read0118536 read0118536
Scopus Author ID
7403649198 7403649198
CreatorName
Yamashita, Hiromi
Subject
Alloy nanoparticles
Amine modification
Deuterium gas
Hydrogen deuteride
Description
Mori K., Konishi A., Fujita T., et al. Selective production of hydrogen isotope gases via PdAg-catalyzed dehydrogenation of formic acid in D2O assisted by surface-grafted amine groups. Materials Today Sustainability 22, 100407 (2023); https://doi.org/10.1016/j.mtsust.2023.100407.
Abstract
Hydrogen isotope gases are widely used as deuterium sources in industrial manufacturing processes. It would therefore be beneficial to develop a facile, simple means of selective producing molecular deuterium (D2) and hydrogen deuteride (HD), although reasonable heterogeneous catalytic methodologies are still missing. We previously demonstrated that the hydrogen isotope gases was selectively obtained from formic acid (HCOOH, FA) and D2O using PdAg nanoparticles supported on mesoporous silica (SBA-15) on which amine functional groups had been grafted. In the present work, amine-functionalized carbon was used as an efficient support material to provide a catalyst with improved activity. Employing weakly basic phenylamine groups, D2 was predominantly evolved and the reaction rate was doubled compared with that for our previously reported system. A high degree of correlation between D2 selectivity and the basicity of the grafted amine groups was also observed. The applicability of the present catalytic system was highlighted by in situ deuteration of diphenylacetylene in a solution of FA in D2O, during which deuterated products were obtained with high efficiency.
Publisher
Elsevier Ltd
Source Title
Materials Today Sustainability
Volume (Issue)
22
Page
100407
Date of Issued
2023-06-01
Language
English
Handle URL
https://hdl.handle.net/11094/94006
eISSN
25892347
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.mtsust.2023.100407
Access Rights
open access
CopyRight
© 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article