Issue 5, 2023

Germanium hydrides as an efficient hydrogen-storage material operated by an iron catalyst

Abstract

The use of metal hydrides such as NaBH4 as hydrogen-storage materials has recently received substantial research attention on account of the worldwide demand for the development of efficient hydrogen-production, -storage, and -transportation systems. Here, we report the quantitative production of H2 gas from a germanium hydride, Ph2GeH2, mediated by an iron catalyst at room temperature via dehydrogenative coupling, concomitant with the formation of (GePh2)5. Of particular importance is that Ph2GeH2 can be facilely recovered from (GePh2)5 by contact with 1 atm of H2 or PhICl2/LiAlH4 at 0 °C or 40 °C, respectively. A detailed reaction mechanism for the iron-catalyzed dehydrogenative coupling of Ph2GeH2 is proposed based on the isolation of four intermediate iron species.

Graphical abstract: Germanium hydrides as an efficient hydrogen-storage material operated by an iron catalyst

Supplementary files

Article information

Article type
Edge Article
Submitted
31 10 2022
Accepted
29 12 2022
First published
20 1 2023
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2023,14, 1065-1071

Germanium hydrides as an efficient hydrogen-storage material operated by an iron catalyst

Y. Kobayashi and Y. Sunada, Chem. Sci., 2023, 14, 1065 DOI: 10.1039/D2SC06011F

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