BROWSE

Related Scientist

Researcher

김선미
나노물질 및 화학반응 연구단
more info

Hot plasmonic electron-driven catalytic reactions on patterned metal-insulator-metal nanostructures

Cited 2 time in webofscience Cited 0 time in scopus
82 Viewed 3 Downloaded
Title
Hot plasmonic electron-driven catalytic reactions on patterned metal-insulator-metal nanostructures
Author(s)
Sun Mi Kim; Changhwan Lee; Kalyan C. Goddeti; Jeong Young Park
Publication Date
2017-08
Journal
NANOSCALE, v.9, no.32, pp.11667 - 11677
Publisher
ROYAL SOC CHEMISTRY
Abstract
The smart design of plasmonic nanostructures offers a unique capability for the efficient conversion of solar energy into chemical energy by strong interactions with resonant photons through the excitation of surface plasmon resonance, which increases the prospect of using sunlight in environmental and energy applications. Here, we show that the catalytic activity of CO oxidation can be tuned by using new model systems: two-dimensional (2D) arrays of metal-insulator-metal (MIM) plasmonic nanoislands designed to efficiently shuttle hot plasmonic electrons. Hot plasmonic electrons are generated upon the absorption of photons on noble metals, followed by the injection of these hot electrons into the Pt nanoparticles through tunneling or Schottky emission mechanisms, depending on the energy of the hot electrons. We found that these MIM nanostructures exhibit higher catalytic activity (i.e. by 40-110%) under light irradiation, revealing a significant impact on the catalytic activity for CO oxidation. The thickness dependence of the enhancement of catalytic activity on the oxide layers is consistent with the tunneling mechanism of hot electron flows. The results imply that surface plasmon-induced hot electron flows by light absorption significantly influence the catalytic activity of CO oxidation. © The Royal Society of Chemistry. This journal is © The Royal Society of Chemistry 2017
URI
https://pr.ibs.re.kr/handle/8788114/4135
ISSN
2040-3364
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
Hot plasmonic electron_driven catalytic reactions on patterned metal_insulator_metal nanostructures.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse