A CoSe–C@C core–shell structure with stable potassium storage performance realized by an effective solid electrolyte interphase layer

2021 ◽  
Author(s):  
Xin Gu ◽  
Li Zhang ◽  
Wenchao Zhang ◽  
Sailin Liu ◽  
Sheng Wen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Shell Structure ◽  
Solid Electrolyte Interphase ◽  
Inorganic Compound ◽  
Core Shell ◽  
Ion Diffusion ◽  
Storage Performance ◽  
Sei Layer ◽  
Core Shell Structure ◽  
Charge Transfer Dynamics

A CoSe–C@C core–shell structure is designed as a novel potential anode for PIBs. The introduction of KFSI salt is found to contribute to the formation of an inorganic-compound-rich SEI layer, benefiting the K ion diffusion and charge transfer dynamics.

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.

scholarly journals Photocatalytic properties of a new Z-scheme system BaTiO3/In2S3 with a core–shell structure

RSC Advances ◽  
2019 ◽  
Vol 9 (20) ◽  
pp. 11377-11384 ◽  
Author(s):  
Kaili Wei ◽  
Baolai Wang ◽  
Jiamin Hu ◽  
Fuming Chen ◽  
Qing Hao ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Valence Band ◽  
Conduction Band ◽  
Shell Structure ◽  
Band Edge ◽  
Conduction Band Edge ◽  
Core Shell ◽  
Valence Band Edge ◽  
Core Shell Structure ◽  
Positive Valence

It's highly desired to design an effective Z-scheme photocatalyst with excellent charge transfer and separation, a more negative conduction band edge (ECB) than O2/·O2− (−0.33 eV) and a more positive valence band edge (EVB) than ·OH/OH− (+2.27 eV).

Li1.1V0.9O2/C Microspheres with Isomeric Core-Shell structure and their Improved Lithium Storage Performance for Lithium-Ion Batteries

2018 ◽  
Vol 5 (23) ◽  
pp. 3708-3716 ◽  
Author(s):  
Nanxiang Feng ◽  
Kaixiong Xiang ◽  
Li Xiao ◽  
Wenhao Chen ◽  
Yirong Zhu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Shell Structure ◽  
Lithium Ion ◽  
Core Shell ◽  
Lithium Storage ◽  
Storage Performance ◽  
Core Shell Structure

Decorating nanoporous ZIF-67-derived NiCo2O4 shells on a Co3O4 nanowire array core for battery-type electrodes with enhanced energy storage performance

2016 ◽  
Vol 4 (28) ◽  
pp. 10878-10884 ◽  
Author(s):  
Dongbo Yu ◽  
Bin Wu ◽  
Liang Ge ◽  
Liang Wu ◽  
Huanting Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Properties ◽  
Shell Structure ◽  
Nanowire Array ◽  
Core Shell ◽  
Storage Performance ◽  
Core Shell Structure

A perfectly intact ZIF-67-derived NiCo2O4 shell had been decorated on a Co3O4 nanowire core. Due to the specific core–shell structure, the resulting hybrid nanowire array exhibited remarkable electrochemical properties.

scholarly journals Low-Diffusion Fricke Gel Dosimeters with Core-Shell Structure Based on Spatial Confinement

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3932
Author(s):  
Wei Zhang ◽  
Kaikai Wang ◽  
Yufeng Zeng ◽  
Xiaodan Hu ◽  
Xiaohong Zhang ◽  
...  
Keyword(s):  
Shell Structure ◽  
Three Dimensional ◽  
Field Size ◽  
Core Shell ◽  
Dose Verification ◽  
Ion Diffusion ◽  
Spatial Confinement ◽  
The Core ◽  
Important Challenge ◽  
Core Shell Structure

The diffusion of ferric ions is an important challenge to limit the application of Fricke gel dosimeters in accurate three-dimensional dose verification of modern radiotherapy. In this work, low-diffusion Fricke gel dosimeters, with a core-shell structure based on spatial confinement, were constructed by utilizing microdroplet ultrarapid freezing and coating technology. Polydimethylsiloxane (PDMS), with its excellent hydrophobicity, was coated on the surface of the pellets. The concentration gradient of the ferric ion was realized through shielding half of a Co-60 photon beam field size, and ion diffusion was measured by both ultraviolet-visible spectrophotometry and magnetic resonance imaging. No diffusion occurred between the core-shell pellets, even at 96 h after irradiation, and the diffusion length at the irradiation boundary was limited to the diameter (2–3 mm) of the pellets. Furthermore, Monte Carlo calculations were conducted to study dosimetric properties of the core-shell dosimeter, which indicated that a PDMS shell hardly affected the performance of the dosimeter.

Core‐Shell Structure of SnO 2 @C/PEDOT : PSS Microspheres with Dual Protection Layers for Enhanced Lithium Storage Performance

2019 ◽  
Vol 6 (8) ◽  
pp. 2182-2188 ◽  
Author(s):  
Hui Li ◽  
Bao Zhang ◽  
Xing Ou ◽  
Qijie Zhou ◽  
Chunhui Wang ◽  
...  
Keyword(s):  
Shell Structure ◽  
Core Shell ◽  
Lithium Storage ◽  
Storage Performance ◽  
Dual Protection ◽  
Core Shell Structure
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