For more and purer hydrogen-the progress and challenges in water gas shift reaction

A 3D-printed CuNi alloy catalyst with a triply periodic minimal surface for the reverse water-gas shift reaction

“…The intrinsic catalytic performance of CuNi alloys has been extensively demonstrated to surpass that of their respective pure metals in various reactions. 27–30 Also, the RWGS reaction as a model reaction can directly convert CO 2 into CO to further synthesise various value-added chemicals. 31–34 Combined with computational fluid dynamics (CFD) for gas flow behaviours, we demonstrated that the monolithic catalyst with a TPMS architecture exhibits significantly improved mass and heat transfer compared with the monolithic catalyst with a honeycomb structures.…”

Porous core–shell structured MoO2–Mo2C@C electrocatalysts for pH-universal hydrogen evolution reaction

“…Therefore, developing efficient electrocatalysts for the HER is the focus of extensive research efforts. 7–9…”

Catalytic Ability of K- and Co-Promoted Oxo-Re and Oxo-ReMo Nanosized Compositions for Water–Gas Shift Reaction

“…The water-gas shift (WGS) reaction (CO + H 2 O ↔ CO 2 + H 2 ) is a well-known process for hydrogen-rich gas production. Furthermore, the WGS reaction is considered an effective way to reduce carbon emissions to the net-zero CO 2 state and has an important role in the hydrogen economy [2,3]. Nowadays, the challenge of replacing fossil fuels is focused on the production of high-purity hydrogen from syngas obtained through waste.…”

“…Thus, the WGS reaction is one of the core processes for this [4,5]. Catalyst design continues to be a challenge, and accordingly, its crucial role in the WGS reaction is to develop advanced, supported WGS nanocatalysts [3].…”

“…Furthermore, commercial Fe 2 O 3 -Cr 2 O 3 and Cu-ZnO catalysts are determined unsuitable for FC applications due to their operation requirements needed to reduce the CO amount from about 2-5% to a residual CO content below 1% after a complete drop from a high-temperature-shift stage to a low-temperature-shift stage, with a cooling step in the middle of the process. Due to this complexity, efforts are directed at developing novel catalysts, and, for this reason, noble metal catalysts such as Pt, Rh, Pd, Ru, and Au on various supports like CeO 2 , Al 2 O 3 , ZnO, and MgO are investigated extensively for FC practice [3,15].…”