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EACON 2020

EurAsian Conference on Nanophotonics

April 6 – 9, 2020 / Jena, Germany

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Agenda
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Chun-Hong Kuo

Institute of Chemistry, Academia Sinica, Taipei 11529, TAIWAN

Bridging Energy and Chemistry via Nanoarchitectonic Engineering at Atomic Scale

Building bimetallic surfaces on nanocrystals renders them superior catalysts for energy-conversion reactions by virtue of the electronic effect. In addition, integration of plasmonics and catalysis in bimetallic nanocrystals provides more benefits for the creation of novel catalyst systems. In this talk, selected stories about utilization of CuM bimetallic nanocatalysts for catalytic and photocatalytic energy-conversion reactions will be introduced.[1] All stories start by the synthesis of Cu nanocubes which serve as the templates for further surface engineering. On the Cu nanocubes, we reduce various kinds of noble metallic ions to form CuM surfaces with precise-controlled thickness less than 2 nm (7-8 atomic layers). In typical, template-based syntheses exhibit the coating shells with a consistent morphology to their mother nanotemplates via epitaxial growth. However, our atom-level surface modulation on the surfaces of Cu nanocubes exhibit unconventional morphological transformation after formation of CuM shells. Moreover, treating Cu-CuM core-shell nanocrystals with acid to remove Cu cores triggers further morphological transformation, leading to final nanocages in a specific shape. Those nanocages are eventually applied to electrocatalysis (oxygen reduction reaction, ORR) and photocatalytic synthetic reaction (4-nitrophenol reduction reaction). It turns out that these nanocages possess at least triply high mass activities than that of commercial catalysts. Apart from surface-coated shells, fabrication of CuM nanoframes on the Cu nanocubes via selective deposition of metallic ions will be also introduced. These nanoframes have 3D-open skeletons with highly exposed surface area and, more importantly, surface defects (i.e. adatoms and terraces).[2] The characteristics make CuM nanoframes excellent catalysts in both electro- and photocatalysis.

Schematic illustration for morphological transformation during formation of CuPt shells on Cu nanocubes.

References

  1. Lyu, L.-M.; Kao, Y.-C.; Cullen, D. A.; Sneed, B. T.; Chuang, Y.-C.; Kuo, C.-H.*, Chem. Mater. 2017, 29, 5681.
  2. Ng, K. C.; Lin, F.-C.; Yang, P.-W.; Chuang, Y.-C.; Chang, C.-K.; Yeh, A.-H.; Kuo, C.-S.; Kao, C.-R.; Liu, C.-C.; Jeng, U.-S.; Huang, J.-S.; Kuo C.-H., Chem. Mater. 2018, 30, 204-213.

Further Talks

Andrea Csáki

Microfludic Synthesis of plasmonic Nanoparticles for Sensing Applications

Andrey Turchanin

Controlled growth of transition metal dichalcogenide monolayers for applications in nanoelectronic and nanophotonic devices

Chi Chen

Near Field Spectroscopic Imaging: from Hard to Soft Materials

Chi-How Peng

Cobalt mediated controlled/living radical polymerization: from mechanism understanding to materials application

Chun-Hong Kuo

Bridging Energy and Chemistry via Nanoarchitectonic Engineering at Atomic Scale

Falk Eilenberger

Integration of two-dimensional materials in optical systems for nonlinear optics, sensing, and single photon sources

Frank Setzpfandt

Nonlinear frequency conversion in nanostructured optical systems for application in quantum photonics

Heng-Liang Wu

Controlling the Oxidation State of Cu Electrode and Reaction Intermediates for Electrochemical CO2 Reduction to Ethylene

Kien-Voon Kong

Direct Observation of Reaction Intermediates of Metal-based Therapeutic Agents in Single Living Cell Using TERS

Maria Wächtler

Quantum confined semiconductor nanostructures in light-driven catalysis

Martin Presselt

Supramolecular Control of Optical and Electronical Properties of Two-Dimensional Dye Layers

Po-Chiao Lin

New Environment Sensitive Fluorophores with Color-Tailored Emission: In Vivo Monitoring of Carbonic Anhydrases Expression on Growth of Larval Zebrafish

Shangjr (Felix) Gwo

Plasmonic Metasurface-Enhanced Linear and Nonlinear Processes in Two-Dimensional Semiconductors

Ta-Jen Yen

Empowering Bilayer MoS2 by Engineered Plasmonic Nanostructures for Optoelectronic Applications

Tiow-Gan Ong

Carbodicarbene, Carbogenic Maverick, Not a Moderate!

Volker Deckert

Plasmon Enhanced Probe Spectroscopies – Structural Investigation of Nanoscale Objects

Yi-Tsu Chan

Molecular self-assembly methodology for rational construction of metallosupramolecules with high structural complexity

Yian Tai

Toward a universal polymeric material for electrode buffer layers in organic optoelectronics

Yu-Chieh Cheng

Kirigami-based soft robots with light-responsive properties

Yu-Jung Lu

Controlling Light-matter Interactions at Nanoscale with Plasmonics: From Spontaneous Emission to Lasing