scholarly journals Intermetallic Fe6Ge5 formation and decay of a core–shell structure during the oxygen evolution reaction

2021 ◽  
Author(s):  
J. Niklas Hausmann ◽  
Roman A. Khalaniya ◽  
Chittaranjan Das ◽  
Ina Remy-Speckmann ◽  
Stefan Berendts ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Shell Structure ◽  
Shell Structures ◽  
Core Shell ◽  
Core Shell Structure

After 1 h alkaline oxygen evolution reaction (OER), intermetallic Fe6Ge5 forms a core–shell structure that collapses under continuous OER revealing that core–shell structures can be only snapshots on a pathway to full precatalyst transformation.

Fine regulation of electron transfer in Ag@Co3O4 nanoparticles for boosting oxygen evolution reaction

2021 ◽  
Author(s):  
Xiwen Du ◽  
Zhe Li ◽  
Yi Feng ◽  
Xiuyao Lang ◽  
Wenjing Kang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Shell Structure ◽  
Shell Thickness ◽  
Core Shell ◽  
Co3o4 Nanoparticles ◽  
Fine Regulation ◽  
Core Shell Structure

In this study, a core-shell structure (Ag@Co3O4) was constructed to modify valance state of cobalt cations precisely by continuously adjusting the shell thickness. There exists a volcano relationship between valence...

Electrochemical oxygen evolution reaction efficiently boosted by thermal-driving core–shell structure formation in nanostructured FeNi/S, N-doped carbon hybrid catalyst

Nanoscale ◽  
2018 ◽  
Vol 10 (35) ◽  
pp. 16911-16918 ◽  
Author(s):  
Zong Liu ◽  
Huaguang Yu ◽  
Baoxia Dong ◽  
Xu Yu ◽  
Ligang Feng
Keyword(s):  
Structure Formation ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Shell Structure ◽  
Catalytic Performance ◽  
Core Shell ◽  
Hybrid Catalyst ◽  
Ni Alloy ◽  
Core Shell Structure ◽  
Electrochemical Oxygen

Thermal-driving core–shell structure formation in Fe–Ni alloy incorporated by S, N-doped carbon can greatly boost the catalytic performance for electrochemical oxygen evolution reaction.

Nickel-based MOF derived Ni @ NiO/N–C nanowires with core-shell structure for oxygen evolution reaction

2019 ◽  
Vol 324 ◽  
pp. 134814 ◽  
Author(s):  
Aijuan Xie ◽  
Jie Zhang ◽  
Xiang Tao ◽  
Jianghui Zhang ◽  
Bingyan Wei ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure

Amorphous Co-doped MoOx nanospheres with a core–shell structure toward an effective oxygen evolution reaction

2019 ◽  
Vol 7 (3) ◽  
pp. 1005-1012 ◽  
Author(s):  
Chengying Guo ◽  
Xu Sun ◽  
Xuan Kuang ◽  
Lingfeng Gao ◽  
Mingzhu Zhao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Shell Structure ◽  
Electrocatalytic Activity ◽  
Hydrothermal Reaction ◽  
Core Shell ◽  
Core Shell Structure ◽  
Unique Core ◽  
Co Doped

Amorphous cobalt-doped MoOx (CMO) nanospheres with a unique core–shell structure have been successfully fabricated via a simple hydrothermal reaction. The CMO exhibited enhanced electrocatalytic activity for the oxygen evolution reaction.

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 Molecular dynamics study on the formation of self-organized core/shell structures in the Pb alloy at the nanoscale

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53509-53515 ◽  
Author(s):  
Tao Li ◽  
ZhiChao Wang ◽  
YunRui Duan ◽  
Jie Li ◽  
Hui Li
Keyword(s):  
Molecular Dynamics ◽  
Shell Structure ◽  
Shell Structures ◽  
Core Shell ◽  
Self Organized ◽  
Core Shell Structure

An abnormal self-organized core/shell structure is formed in the liquid Al–Pb alloy, which can be controlled by confined conditions.

Sign in / Sign up

Export Citation Format

Share Document