Determination of CO Adsorption Sites on Gold Clusters Aun– (n = 21–25): A Size Region That Bridges the Pyramidal and Core–Shell Structures

2018 ◽  
Vol 9 (18) ◽  
pp. 5430-5439 ◽  
Author(s):  
Navneet Singh Khetrapal ◽  
Lai-Sheng Wang ◽  
Xiao Cheng Zeng
Keyword(s):  
Co Adsorption ◽  
Gold Clusters ◽  
Shell Structures ◽  
Core Shell ◽  
Adsorption Sites

Atomic Structure of Bimetallic Nanoparticles in PtAg/C Catalysts: Determination of Components Distribution in the Range from Disordered Alloys to “Core–Shell” Structures

2015 ◽  
Vol 119 (6) ◽  
pp. 3217-3227 ◽  
Author(s):  
Vasiliy V. Pryadchenko ◽  
Vasiliy V. Srabionyan ◽  
Elena B. Mikheykina ◽  
Leon A. Avakyan ◽  
Vadim Y. Murzin ◽  
...  
Keyword(s):  
Atomic Structure ◽  
Bimetallic Nanoparticles ◽  
Shell Structures ◽  
Core Shell ◽  
Disordered Alloys

Determination of Core-Shell Structures in Pd-Hg Nanoparticles by STEM-EDX

ChemCatChem ◽  
2015 ◽  
Vol 7 (22) ◽  
pp. 3748-3752 ◽  
Author(s):  
Davide Deiana ◽  
Arnau Verdaguer-Casadevall ◽  
Paolo Malacrida ◽  
Ifan E. L. Stephens ◽  
Ib Chorkendorff ◽  
...  
Keyword(s):  
Shell Structures ◽  
Core Shell

scholarly journals Determination of Local Oxidations States in Ni-NiO Core-shell Structures Using White Line Intensity Ratios

2010 ◽  
Vol 16 (S2) ◽  
pp. 1458-1459
Author(s):  
SM Weil ◽  
J Wang ◽  
JB Tracy ◽  
K van Benthem
Keyword(s):  
Line Intensity ◽  
Shell Structures ◽  
Core Shell ◽  
White Line ◽  
Intensity Ratios

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

Designing active mats based on cellulose acetate/polycaprolactone core/shell structures with different release kinetics

2021 ◽  
Vol 261 ◽  
pp. 117849 ◽  
Author(s):  
Adrián Rojas ◽  
Eliezer Velásquez ◽  
Constanza Piña ◽  
María José Galotto ◽  
Carol López de Dicastillo
Keyword(s):  
Cellulose Acetate ◽  
Release Kinetics ◽  
Shell Structures ◽  
Core Shell

scholarly journals A SERS Study of Charge Transfer Process in Au Nanorod–MBA@Cu2O Assemblies: Effect of Length to Diameter Ratio of Au Nanorods

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 867
Author(s):  
Lin Guo ◽  
Zhu Mao ◽  
Sila Jin ◽  
Lin Zhu ◽  
Junqi Zhao ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Shell Structure ◽  
Shell Structures ◽  
Core Shell ◽  
Absorption Bands ◽  
Au Nanorods ◽  
The Core ◽  
Band Position ◽  
Surface Enhanced Raman ◽  
Core Shell Structure

Surface-enhanced Raman scattering (SERS) is a powerful tool in charge transfer (CT) process research. By analyzing the relative intensity of the characteristic bands in the bridging molecules, one can obtain detailed information about the CT between two materials. Herein, we synthesized a series of Au nanorods (NRs) with different length-to-diameter ratios (L/Ds) and used these Au NRs to prepare a series of core–shell structures with the same Cu2O thicknesses to form Au NR–4-mercaptobenzoic acid (MBA)@Cu2O core–shell structures. Surface plasmon resonance (SPR) absorption bands were adjusted by tuning the L/Ds of Au NR cores in these assemblies. SERS spectra of the core-shell structure were obtained under 633 and 785 nm laser excitations, and on the basis of the differences in the relative band strengths of these SERS spectra detected with the as-synthesized assemblies, we calculated the CT degree of the core–shell structure. We explored whether the Cu2O conduction band and valence band position and the SPR absorption band position together affect the CT process in the core–shell structure. In this work, we found that the specific surface area of the Au NRs could influence the CT process in Au NR–MBA@Cu2O core–shell structures, which has rarely been discussed before.

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