Strategies for Designing Nanoparticles for Electro‐ and Photocatalytic CO₂ Reduction

Abstract

Conversion of carbond ioxide (CO 2 )i ntov alueadded chemicals hasa ttracted much attention because it can not only resolve globalw arming issues by reducing CO 2 accumulationi nt he atmosphere,b ut also produce renewable hydrocarbon fuels that are important feedstocks for the chemical industry.A mong the diversea pproaches reported, CO 2 reduction via electro-and photocatalytic methods is at the center of topics due to potentiale ngineering of reaction performancet hrough rational design of catalystf eatures. In this Minireview,w eh ighlight recent strategies for designing nanoparticles to maximize the reactione fficiency and selectivity;f rom am aterials viewpoint, these strategies can provide critical information to guide future research directions.[a] Dr.

CO2 or Carbonates – What is the Active Species in Electrochemical CO2 Reduction over Fe‐Porphyrin?

“…This assessment agrees also well with evidence from X-ray absorption spectroscopy for Fe single atom catalysts. [58] Assuming a pH of 7 which is commonly used for CO 2 RR in water, [55][56][57][59][60][61] the Fe(I)(ppy) complex may react either with CO 2 , HCO 3…”

“…Assuming a pH of 7 which is commonly used for CO 2 RR in water, [55–57,59–61] the Fe(I)(ppy) complex may react either with CO 2 , HCO 3 − or H 2 CO 3 . CO 3 2− on the other hand is only present in very minor amounts under these conditions but has nevertheless been included in this study for the sake of completeness.…”

The fabrication and application of a triphasic reaction interface based on superwettability for improved reaction efficiency

“…Electrochemical CO 2 reduction reaction technology converts CO 2 into valuable chemicals, which have a wide range of applications in energy and environmental issues. 116,117 However, because of the numerous competitive reaction pathways, improving the selectivity of the desired product is still a challenge. Recently, researchers solved this issue by creating a gasliquid-solid three-phase interface with appropriate gas wettability.…”

Effective perspiration is essential to uphold the stability of zero-gap MEA-based cathodes used in CO2 electrolysers

“…[8][9][10] Metallic catalysts of nanoparticulate (NP) form, for example, usually exhibit a much higher mass-normalised activity than planar metallic surfaces. 11 This is mostly due to the large surface area of NPs that offers more active sites with low coordination numbers, enabling improved performances. 12 Metallic NPs thus seem to become the most favoured catalysts used in today's CO 2 electrolysers, and the reason for this is not only their low raw material cost, but also that they can easily be applied in gas diffusion electrodes (GDEs).…”