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@ARTICLE{Logsdail:201502,
author = {Logsdail, Andrew J. and Johnston, Roy. L. and Akola,
Jaakko},
title = {{I}mproving the {A}dsorption of {A}u {A}toms and
{N}anoparticles on {G}raphite via {L}i {I}ntercalation},
journal = {The journal of physical chemistry / C},
volume = {117},
number = {44},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2015-03797},
pages = {22683 - 22695},
year = {2013},
abstract = {Supported nanoclusters have an important future in chemical
processes such as catalysis. However, to optimize the
properties of supported nanoclusters, attention must be paid
to the electronic properties of both adsorbate and substrate
materials. Highly ordered pyrolytic graphite is commonly
used as a substrate for Au nanoclusters; however, cluster
functionality and mobility is a problem on this inert
surface. Therefore, we have designed a model for Li-doped
graphite and investigated the electronic properties of
adsorbed Au atoms and nanoclusters on this material using
density functional theory (DFT). We find that increasing the
concentration of Li atoms in the substrate results in
improved adsorption for both Au atoms and Au16 nanoclusters
onto the surface, with adsorption energies up to 0.96 and
1.50 eV, respectively, when using the Perdew, Burke, and
Ernzerhof (PBE) exchange-correlation functional. In the case
of the Au16 nanocluster, charge transfer of >1 e is
computed, which should make this supported system
functionally suitable for reactions such as CO oxidation.
Furthermore, a pseudoionic bond is observed in some cases
for atomic Au over a surface C atom, though the presence of
such chemical interaction is dependent on the
exchange-correlation functional used.},
cin = {IAS-1 / PGI-1},
ddc = {540},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
pnm = {422 - Spin-based and quantum information (POF2-422)},
pid = {G:(DE-HGF)POF2-422},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000326845400027},
doi = {10.1021/jp405670v},
url = {https://juser.fz-juelich.de/record/201502},
}