Sustainable production of hydrogen with high purity from methanol and water at low temperatures
Sai Zhang, Yuxuan Liu, Mingkai Zhang, Yuanyuan Ma, Jun Hu, Yongquan Qu
Abstract
Abstract Carbon neutrality initiative has stimulated the development of the sustainable methodologies for hydrogen generation and safe storage. Aqueous-phase reforming methanol and H 2 O (APRM) has attracted the particular interests for their high gravimetric density and easy availability. Thus, to efficiently release hydrogen and significantly suppress CO generation at low temperatures without any additives is the sustainable pursuit of APRM. Herein, we demonstrate that the dual-active sites of Pt single-atoms and frustrated Lewis pairs (FLPs) on porous nanorods of CeO 2 enable the efficient additive-free H 2 generation with a low CO (0.027%) through APRM at 120 °C. Mechanism investigations illustrate that the Pt single-atoms and Lewis acidic sites cooperatively promote the activation of methanol. With the help of a spontaneous water dissociation on FLPs, Pt single-atoms exhibit a significantly improved reforming of *CO to promote H 2 production and suppress CO generation. This finding provides a promising path towards the flexible hydrogen utilizations.