Density functional theory with generalized gradient approximations (GGAs) for the exchange-correlation density functional is widely used to model adsorption and reaction of molecules on surfaces. In other areas of computational chemistry, GGAs have largely been replaced by more accurate meta-GGA and hybrid approximations. Meta-GGAs and hybrids can ameliorate GGAs’ systematic over-delocalization of electrons and systematic underestimate of reaction barriers. This chapter discusses extensions of meta-GGAs and screened hybrids to surface chemistry. It reviews evidence that GGAs’ systematic underestimate of gas-phase reaction barriers carries over to reactions on surfaces, and that meta-GGAs and screened hybrids can improve results. It closes with recent applications and new work towards more accurate functionals for surfaces. These promising results motivate further exploration of meta-GGAs and screened hybrids for surface chemistry.
CITATION STYLE
Janesko, B. G. (2015). Density functional theory beyond the generalized gradient approximation for surface chemistry. Topics in Current Chemistry, 365, 25–52. https://doi.org/10.1007/128_2014_555
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