Platinum electrocatalysts with plasmonic nano-cores for photo-enhanced oxygen-reduction

Zhaoke Zheng; Wen Xie; Mengmeng Li; Yun Hau Ng; Da Wei Wang; Ying Dai; Baibiao Huang; Rose Amal

doi:10.1016/j.nanoen.2017.09.040

Platinum electrocatalysts with plasmonic nano-cores for photo-enhanced oxygen-reduction

Zhaoke Zheng^*, Wen Xie, Mengmeng Li, Yun Hau Ng, Da Wei Wang, Ying Dai, Baibiao Huang, Rose Amal

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

Platinum (Pt) has been recognized as the most efficient catalyst for the oxygen reduction reaction (ORR). So far, great efforts have been devoted to enhance the ORR activity of Pt by alloying or surface engineering, however, little effect has been devoted to utilizing solar energy to boost the ORR catalysis. Herein a photo-enhanced strategy is developed to improve the ORR activity of Pt with plasmonic nano-cores. Au-Pd-Pt NRs with strong surface plasmon resonance (SPR) absorption are synthesized and Pd serves as the buffer layer. Upon visible-light irradiation, the mass and specific activities over Au-Pd-Pt NRs/C could reach 2.56 A mg⁻¹_Pt and 3.57 mA cm⁻² at 0.9 V versus RHE, which is 25.6 and 27.5 times higher than those of commercial Pt/C; notably, 2.2-fold enhancement is obtained only with the visible-light energy. These studies may open new avenues to further improve the ORR activity with light energy as a driving force.

Original language	English (US)
Pages (from-to)	233-242
Number of pages	10
Journal	Nano Energy
Volume	41
DOIs	https://doi.org/10.1016/j.nanoen.2017.09.040
State	Published - Nov 2017

Bibliographical note

Publisher Copyright:
© 2017

Keywords

Core/shell nanoparticles
Density functional theory
Electrocatalysis
Oxygen reduction reaction
Surface plasmon resonance

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nanoen.2017.09.040

Cite this

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title = "Platinum electrocatalysts with plasmonic nano-cores for photo-enhanced oxygen-reduction",

abstract = "Platinum (Pt) has been recognized as the most efficient catalyst for the oxygen reduction reaction (ORR). So far, great efforts have been devoted to enhance the ORR activity of Pt by alloying or surface engineering, however, little effect has been devoted to utilizing solar energy to boost the ORR catalysis. Herein a photo-enhanced strategy is developed to improve the ORR activity of Pt with plasmonic nano-cores. Au-Pd-Pt NRs with strong surface plasmon resonance (SPR) absorption are synthesized and Pd serves as the buffer layer. Upon visible-light irradiation, the mass and specific activities over Au-Pd-Pt NRs/C could reach 2.56 A mg−1Pt and 3.57 mA cm−2 at 0.9 V versus RHE, which is 25.6 and 27.5 times higher than those of commercial Pt/C; notably, 2.2-fold enhancement is obtained only with the visible-light energy. These studies may open new avenues to further improve the ORR activity with light energy as a driving force.",

keywords = "Core/shell nanoparticles, Density functional theory, Electrocatalysis, Oxygen reduction reaction, Surface plasmon resonance",

author = "Zhaoke Zheng and Wen Xie and Mengmeng Li and Ng, {Yun Hau} and Wang, {Da Wei} and Ying Dai and Baibiao Huang and Rose Amal",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = nov,

doi = "10.1016/j.nanoen.2017.09.040",

language = "English (US)",

volume = "41",

pages = "233--242",

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T1 - Platinum electrocatalysts with plasmonic nano-cores for photo-enhanced oxygen-reduction

AU - Zheng, Zhaoke

AU - Xie, Wen

AU - Li, Mengmeng

AU - Ng, Yun Hau

AU - Wang, Da Wei

AU - Dai, Ying

AU - Huang, Baibiao

AU - Amal, Rose

PY - 2017/11

Y1 - 2017/11

N2 - Platinum (Pt) has been recognized as the most efficient catalyst for the oxygen reduction reaction (ORR). So far, great efforts have been devoted to enhance the ORR activity of Pt by alloying or surface engineering, however, little effect has been devoted to utilizing solar energy to boost the ORR catalysis. Herein a photo-enhanced strategy is developed to improve the ORR activity of Pt with plasmonic nano-cores. Au-Pd-Pt NRs with strong surface plasmon resonance (SPR) absorption are synthesized and Pd serves as the buffer layer. Upon visible-light irradiation, the mass and specific activities over Au-Pd-Pt NRs/C could reach 2.56 A mg−1Pt and 3.57 mA cm−2 at 0.9 V versus RHE, which is 25.6 and 27.5 times higher than those of commercial Pt/C; notably, 2.2-fold enhancement is obtained only with the visible-light energy. These studies may open new avenues to further improve the ORR activity with light energy as a driving force.

AB - Platinum (Pt) has been recognized as the most efficient catalyst for the oxygen reduction reaction (ORR). So far, great efforts have been devoted to enhance the ORR activity of Pt by alloying or surface engineering, however, little effect has been devoted to utilizing solar energy to boost the ORR catalysis. Herein a photo-enhanced strategy is developed to improve the ORR activity of Pt with plasmonic nano-cores. Au-Pd-Pt NRs with strong surface plasmon resonance (SPR) absorption are synthesized and Pd serves as the buffer layer. Upon visible-light irradiation, the mass and specific activities over Au-Pd-Pt NRs/C could reach 2.56 A mg−1Pt and 3.57 mA cm−2 at 0.9 V versus RHE, which is 25.6 and 27.5 times higher than those of commercial Pt/C; notably, 2.2-fold enhancement is obtained only with the visible-light energy. These studies may open new avenues to further improve the ORR activity with light energy as a driving force.

KW - Core/shell nanoparticles

KW - Density functional theory

KW - Electrocatalysis

KW - Oxygen reduction reaction

KW - Surface plasmon resonance

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U2 - 10.1016/j.nanoen.2017.09.040

DO - 10.1016/j.nanoen.2017.09.040

M3 - Article

AN - SCOPUS:85029918624

SN - 2211-2855

VL - 41

SP - 233

EP - 242

JO - Nano Energy

JF - Nano Energy

ER -

Platinum electrocatalysts with plasmonic nano-cores for photo-enhanced oxygen-reduction

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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