Utilizing CO as a Reactant for C Oxygenate Production via Tandem Reactions.

One possible solution to closing the loop on carbon emissions is using CO as the carbon source to generate high-value, multicarbon products. In this Perspective, we describe four tandem reaction strategies for converting CO into C oxygenated hydrocarbon products (i.e.

Transition Metal Nitrides as Promising Catalyst Supports for Tuning CO/H Syngas Production from Electrochemical CO Reduction.

The electrochemical carbon dioxide reduction reaction (CO RR) to produce synthesis gas (syngas) with tunable CO/H ratios has been studied by supporting Pd catalysts on transition metal nitride (TMN) substrates. Combining experimental measurements and density functional theory (DFT) calculations, Pd-modified niobium nitride (Pd/NbN) is found to generate much higher CO and H partial current densities and greater CO Faradaic efficiency than Pd-modified vanadium nitride (Pd/VN) and commercial Pd/C catalysts. In-situ X-ray diffraction identifies the formation of PdH in Pd/NbN and Pd/C under CO RR conditions, whereas the Pd in Pd/VN is not fully transformed into the active PdH phase.

Aqueous Ligand-Stabilized Palladium Nanoparticle Catalysts for Parahydrogen-Induced C Hyperpolarization.

Parahydrogen-induced polarization (PHIP) is a method for enhancing NMR sensitivity. The pairwise addition of parahydrogen in aqueous media by heterogeneous catalysts can lead to applications in chemical and biological systems. Polarization enhancement can be transferred from H to C for longer lifetimes by using zero field cycling.