Active catalysts for syngas production for renewable power-to-X for sustainable fuels and chemicals production.

Uncovering Atomic‐Scale Stability and Reactivity in Engineered Zinc Oxide Electrocatalysts for Controllable Syngas Production
FSP technique for catalyst synthesis deriving the eventual mix of the syngas building blocks produced by the carbon dioxide conversion

In this latest article published in Advanced Energy Materials, our researchers - Dr Daiyan and Dr Lovell  reported how the defective ZnO catalysts derived from Flame Spray Pyrolysis (FSP) technique are used for concurrent generation of H2  and CO during electrochemical CO2 reduction reactions (CO2RR). Through manipulation of fabrication parameters, we can systematically vary the structural properties to tune the H2/CO ratio during CO2RR. This paper provide insights into the role of controlling ZnO facets in tuning H2/CO ratio as well as the stability of  structural properties and defects in ZnO during the application of negative bias in CO2RR using in situ synchrotron based high energy X‐ray diffraction (HE‐XRD) coupled to atomic pair distribution function (PDF) analysis. The catalyst achieved H2/CO ratio of ~1 with a large current density (j) of 40 mA cm-2 during long-term continuous reaction at a cell voltage of 2.6 V. 

This article addressed the knowledge gap concerning metal‐oxides and synthetic control over reaction selectivity during CO2RR, which brings new opportunities into P2X, ultimately with the potential to generate a wide range of fuels and chemicals. The work was also highlighted in UNSW Newsroom  (Engineers find neat way to turn waste carbon dioxide into useful material). 

Read full article in Advanced Energy Materials