Issue 10, 2024

Recent progress in molecular transition metal catalysts for hydrogen production from methanol and formaldehyde

Abstract

Hydrogen is considered as a potential alternative and sustainable energy carrier, but its safe storage and transportation are still challenging due to its low volumetric energy density. Notably, C1-based substrates, methanol and formaldehyde, containing high hydrogen contents of 12.5 wt% and 6.7 wt%, respectively, can release hydrogen on demand in the presence of a suitable catalyst. Advantageously, both methanol and aqueous formaldehyde are liquid at room temperature, and hence can be stored and transported considerably more safely than hydrogen gas. Moreover, these C1-based substrates can be produced from biomass waste and can also be regenerated from CO2, a greenhouse gas. In this review, the recent progress in hydrogen production from methanol and formaldehyde over noble to non-noble metal complex-based molecular transition metal catalysts is extensively reviewed. This review also focuses on the critical role of the structure–activity relationship of the catalyst in the dehydrogenation pathway.

Graphical abstract: Recent progress in molecular transition metal catalysts for hydrogen production from methanol and formaldehyde

Article information

Article type
Perspective
Submitted
02 Pun 2023
Accepted
26 Phe 2024
First published
30 Phe 2024

Dalton Trans., 2024,53, 4363-4389

Recent progress in molecular transition metal catalysts for hydrogen production from methanol and formaldehyde

J. Parthiban, M. K. Awasthi, T. A. Kharde, K. Kalita and S. K. Singh, Dalton Trans., 2024, 53, 4363 DOI: 10.1039/D3DT03668E

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