CO-Free H₂ Production by Aqueous-Phase Reforming of Methanol Utilizing Heterogenized Ru-MACHO at Low Temperature

Abstract

Methanol reforming for hydrogen production has drawbacks: high-temperature operation (>200 °C) and carbon monoxide (CO) generation. A heterogenized catalyst based on ruthenium, containing an active site of a homogeneous organometallic catalyst, was employed to perform aqueous-phase reforming of methanol at a low temperature (90 °C). The catalyst exhibited an outstanding productivity of up to 115 μmol H 2 g cat. –1 s –1, without any CO generation, and demonstrated 10 times recyclability. This approach offers a promising alternative to address challenges in hydrogen production, including CO by-product generation and temperature limitations, particularly in fuel cell applications.

Topics & Concepts