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Issue 1, 2021
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Low-temperature hydrogen production from methanol over a ruthenium catalyst in water

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Abstract

Traditionally, methanol reforming at a very high temperature (>200 °C) has been explored for hydrogen production. Here, we show that in situ generated ruthenium nanoparticles (ca. 1.5 nm) from an organometallic precursor promote hydrogen production from methanol in water at low temperature (90–130 °C), which leads to a practical and efficient approach for low-temperature hydrogen production from methanol in water. The reactivity of ruthenium nanoparticles is tuned to achieve a high rate of hydrogen gas production from methanol. Notably, the use of a pyridine-2-ol ligand significantly accelerated the hydrogen production rate by 80% to 49 mol H2 per mol Ru per hour at 130 °C. Moreover, the studied ruthenium catalyst exhibits appreciably long-term stability to achieve a turnover number of 762 mol H2 per mol Ru generating 186 L of H2 per gram of Ru.

Graphical abstract: Low-temperature hydrogen production from methanol over a ruthenium catalyst in water

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Article information


Submitted
22 Jul 2020
Accepted
25 Oct 2020
First published
26 Oct 2020

Catal. Sci. Technol., 2021,11, 136-142
Article type
Paper

Low-temperature hydrogen production from methanol over a ruthenium catalyst in water

M. K. Awasthi, R. K. Rai, S. Behrens and S. K. Singh, Catal. Sci. Technol., 2021, 11, 136
DOI: 10.1039/D0CY01470B

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