Localized Surface Plasmon Resonance Assisted Photothermal
Catalysis of CO and Toluene Oxidation over Pd–CeO<sub>2</sub> Catalyst under Visible Light Irradiation
Jinshuo Zou
Zhichun Si
Yidan Cao
Rui Ran
Xiaodong Wu
Duan Weng
10.1021/acs.jpcc.6b08630.s001
https://acs.figshare.com/articles/journal_contribution/Localized_Surface_Plasmon_Resonance_Assisted_Photothermal_Catalysis_of_CO_and_Toluene_Oxidation_over_Pd_CeO_sub_2_sub_Catalyst_under_Visible_Light_Irradiation/4483700
The
extinction peak of Pd particles generally locates at the ultraviolet
light region, suggesting that only 4% of solar light can be absorbed.
Furthermore, the efficiency of LSPR hot electrons converted to chemical
energy of reaction is very low due to the fast relaxation of carriers.
It is extremely valuable to design Pd-based catalysts which have strong
response to the visible light irradiation and high efficiency in photon
to chemical energy. The Pd–CeO<sub>2</sub> catalyst was synthesized
via the hexadecyltrimethylammonium bromide (CTAB) assisted
liquid-phase reduction method to generate more active interfaces.
The significant extinction of Pd–CeO<sub>2</sub> in the visible
to near-infrared region indicates the strong electron interaction
between Pd and CeO<sub>2</sub>. LSPR hot electrons, transferring from
the Pd metal particles to the conduction band of ceria, promote the
dissociation of adsorbed oxygen. Therefore, the reaction temperature
of CO and toluene oxidation can be significantly lowered by visible
light irradiation. The maximum light efficiencies of Pd–CeO<sub>2</sub> catalyst for toluene oxidation and CO oxidation are obtained
as 0.42% and 1%, which benefit from the effective Pd–O–Ce
interfaces.
2016-12-12 00:00:00
CTAB
light irradiation
LSPR
Localized Surface Plasmon Resonance Assisted Photothermal Catalysis
Pd metal particles
liquid-phase reduction method
toluene oxidation
CO
design Pd-based catalysts
Visible Light Irradiation
efficiency
electron
chemical energy