10.1021/jp408979h.s001
Samantha Stambula
Samantha
Stambula
Nicolas Gauquelin
Nicolas
Gauquelin
Matthieu Bugnet
Matthieu
Bugnet
Sandeep Gorantla
Sandeep
Gorantla
Stuart Turner
Stuart
Turner
Shuhui Sun
Shuhui
Sun
Jian Liu
Jian
Liu
Gaixia Zhang
Gaixia
Zhang
Xueliang Sun
Xueliang
Sun
Gianluigi A. Botton
Gianluigi A.
Botton
Chemical Structure of Nitrogen-Doped Graphene with
Single Platinum Atoms and Atomic Clusters as a Platform for the PEMFC
Electrode
American Chemical Society
2014
volume ratio catalyst
graphene
subnanometer cluster catalysts
proton exchange membrane fuel cell
TEM
PEMFC ElectrodeA platform
scanning transmission electron microscopy
transmission electron microscopy
Single Platinum Atoms
ALD
Pt atoms
2014-02-27 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Chemical_Structure_of_Nitrogen_Doped_Graphene_with_Single_Platinum_Atoms_and_Atomic_Clusters_as_a_Platform_for_the_PEMFC_Electrode/2319301
A platform
for producing stabilized Pt atoms and clusters through
the combination of an N-doped graphene support and atomic layer deposition
(ALD) for the Pt catalysts was investigated using transmission electron
microscopy (TEM) and scanning transmission electron microscopy (STEM).
It was determined, using imaging and spectroscopy techniques, that
a wide range of N-dopant types entered the graphene lattice through
covalent bonds without largely damaging its structure. Additionally
and most notably, Pt atoms and atomic clusters formed in the absence
of nanoparticles. This work provides a new strategy for experimentally
producing stable atomic and subnanometer cluster catalysts, which
can greatly assist the proton exchange membrane fuel cell (PEMFC)
development by producing the ultimate surface area to volume ratio
catalyst.