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Tuesday, 17 September 2019
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Raw materials & technologies, Science today - coatings tomorrow

Heterogeneous catalytic conversion of carbon dioxide

Wednesday, 20 May 2015

The conversion of CO2 into fuels and useful chemicals has been intensively pursued for renewable, sustainable and green energy.

Novel catalysts, which have high stability, superior efficiency and low cost, are needed to facilitate the conversion of CO<custom name='sub'>2</custom>. Source: Alex White/Fotolia
Novel catalysts, which have high stability, superior efficiency and low cost, are needed to facilitate the conversion of CO2

However, due to the negative adiabatic electron affinity (EA) and large ionisation potential (IP), the CO2 molecule is chemically inert, thus making the conversion difficult under normal conditions. Novel catalysts, which have high stability, superior efficiency and low cost, are urgently needed to facilitate the conversion. As the first step to design such catalysts, understanding the mechanisms involved in CO2 conversion is absolutely indispensable.

Overwiew of recent progress in mechanistic studies

In a review, Singaporean researchers have summarised the recent theoretical progress in mechanistic studies based on density functional theory, kinetic Monte Carlo simulation, and microkinetics modeling.They focus on reaction channels, intermediate products, the key factors determining the conversion of CO2 in solid-gas interface thermocatalytic reduction and solid-liquid interface electrocatalytic reduction. Furthermore, they have proposed some possible strategies for improving CO2 electrocatalysis and also discussed the challenges in theory, model construction, and future research directions.

The study is published in: Nanoscale, Issue 19, 2015.

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