Dear Spiral user, We’re pleased to introduce Helix, https://helix.imperial.ac.uk/ Imperial’s new repository for research datasets. Please use Helix for all future dataset deposits. There is no change to Spiral - continue depositing as usual. For queries, contact the Research Data Management team at rdm-enquiries@imperial.ac.uk. Kind regards, the Spiral Team. The Spiral team
Plasmonic Pd nanoparticles at the electrode-semiconductor interface enhance the activity of bismuth vanadate for solar-driven glycerol oxidation
File(s)
d5qi01542a.pdf (2.85 MB)
Published version
Author(s)
Xie, Junjie
Tam, Brian
Cai, YiChao
Li, Longren
Lin, Zhipeng
Type
Journal Article
Abstract
This study demonstrates that the integration of plasmonic palladium (Pd) nanoparticles between a bismuth vanadate (BVO) coating and an electrode interface can significantly improve solar-driven glycerol oxidation. Pd nanoparticles of controllable shape, size and coverage were produced using a novel aerosol-assisted chemical vapour deposition (AACVD) synthetic route and then coated with BVO using the same technique. The nanoparticles enhanced visible light absorption and crystallinity. At 1.23 VRHE, the photocurrent density of bare BVO increased from 0.62 mA cm−2 in the absence of glycerol to 1.20 mA cm−2 with 0.5 M glycerol. When Pd nanoparticles were incorporated beneath BVO, the photocurrent further increased from 0.86 mA cm−2 without glycerol to 1.58 mA cm−2 with 0.5 M glycerol, and the incident photon-to-current conversion efficiency (IPCE) boosted from ∼15% to ∼40% at 400 nm. Ultra-fast transient absorption spectroscopy suggests that the addition of Pd nanoparticles introduces additional charge transfer pathways, including hot electron injection and plasmon-coupled states, which prolong carrier lifetimes and suppress recombination. These combined effects provide a promising strategy to improve the efficiency and durability of photoelectrochemical devices for sustainable fuel generation and selective organic oxidation reactions.
Date Issued
2025-12-21
Date Acceptance
2025-09-15
Citation
Inorganic Chemistry Frontiers, 2025, 12 (24), pp.8785-8799
URI
URL
DOI
ISSN
2052-1545
Publisher
Royal Society of Chemistry
Start Page
8785
End Page
8799
Journal / Book Title
Inorganic Chemistry Frontiers
Volume
12
Issue
24
Copyright Statement
© the Partner Organisations 2025 Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
License URL
Publication Status
Published
Date Publish Online
2025-10-13