Engineering Ultrathin Alloy Shell in Au@AuPd Core-Shell Nanoparticles for Efficient Plasmon-Driven Photocatalysis

Kang, Eunbi; Seo, Jinho; Park, Hyewon; Wrasman, Cody J.; Shin, Jae Won; Jo, Min‐kyun; Cargnello, Matteo; Park, Jeong Young; Lee, Hyosun

doi:10.1002/admi.202301070

Title: Engineering Ultrathin Alloy Shell in Au@AuPd Core-Shell Nanoparticles for Efficient Plasmon-Driven Photocatalysis

Journal Article · 30 March 2024 · Advanced Materials Interfaces

DOI: https://doi.org/10.1002/admi.202301070 · OSTI ID:2403664

Kang, Eunbi ^[1]; Seo, Jinho ^[2]; Park, Hyewon ^[3]; Wrasman, Cody J. ^[4]; Shin, Jae Won ^[5]; Jo, Min‐kyun ^[2]; Cargnello, Matteo ^[6]; Park, Jeong Young ^[3];

^[2]

University of Seoul (Korea, Republic of); SLAC
University of Seoul (Korea, Republic of)
Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of)
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis
Institute for Basic Science (IBS), Daejeon (Korea, Republic of)
Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis

Bimetallic core-shell nanoparticles (NPs) possessing a synergetic coupling of plasmonic and catalytic metals have emerged as promising prototypes for efficient plasmon-driven photocatalysis. Here, Au@AuPd core-shell NPs composed of Au core NP and ultrathin AuPd shell are introduced to acquire improved light utilization efficiency in photocatalytic selective oxidation. With systematical control of the composition of the ultrathin alloy shell, it reveals that the Au@AuPd core-shell NPs with 10 at% Pd (in the single-atom alloy regime) is an effective nanostructure capable of maximizing the quantum yield of plasmon-induced light absorption and optimizing the surface electronic structure for catalytic reactions. This controlled system provides new insights into shell engineering for enhancing photocatalytic performance via the regulation of energy funneling processes in core-shell nanocatalysts.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 2403664

Journal Information:: Advanced Materials Interfaces, Journal Name: Advanced Materials Interfaces Journal Issue: 15 Vol. 11; ISSN 2196-7350

Publisher:: Wiley-VCHCopyright Statement

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
bimetallic shell
core-shell nanoparticles
photocatalysis
plasmonic nanostructures

Title: Engineering Ultrathin Alloy Shell in Au@AuPd Core-Shell Nanoparticles for Efficient Plasmon-Driven Photocatalysis

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