Electric Field Coupling in the S-Scheme CdS/BiOCl Heterojunction for Boosted Charge Transport toward Photocatalytic CO2 Reduction

2022 ◽  
Author(s):  
Sai-Sai Wang ◽  
Xu Liang ◽  
Ya-Kun Lv ◽  
Yan-Yang Li ◽  
Rong-Hui Zhou ◽  
...  
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Co2 Reduction ◽  
Field Coupling

Electric Field Coupling to Slow Elastic Modes in Gels of Conjugated Polymers

1984 ◽  
Vol 53 (5) ◽  
pp. 469-472 ◽  
Author(s):  
A. Kapitulnik ◽  
S. Casalnuovo ◽  
K. C. Lim ◽  
A. J. Heeger
Keyword(s):  
Electric Field ◽  
Conjugated Polymers ◽  
Field Coupling ◽  
Elastic Modes

scholarly journals Elucidating the Influence of Electric Fields toward CO2 Activation on YSZ (111)

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 271
Author(s):  
Nisa Ulumuddin ◽  
Fanglin Che ◽  
Jung-Il Yang ◽  
Su Ha ◽  
Jean-Sabin McEwen
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Heterogeneous Catalysts ◽  
Co2 Reduction ◽  
Total Density ◽  
Reverse Water Gas Shift ◽  
High Thermodynamic Stability ◽  
Shift Reaction ◽  
Water Gas

Despite its high thermodynamic stability, the presence of a negative electric field is known to facilitate the activation of CO2 through electrostatic effects. To utilize electric fields for a reverse water gas shift reaction, it is critical to elucidate the role of an electric field on a catalyst surface toward activating a CO2 molecule. We conduct a first-principles study to gain an atomic and electronic description of adsorbed CO2 on YSZ (111) surfaces when external electric fields of +1 V/Å, 0 V/Å, and −1 V/Å are applied. We find that the application of an external electric field generally destabilizes oxide bonds, where the direction of the field affects the location of the most favorable oxygen vacancy. The direction of the field also drastically impacts how CO2 adsorbs on the surface. CO2 is bound by physisorption when a +1 V/Å field is applied, a similar interaction as to how it is adsorbed in the absence of a field. This interaction changes to chemisorption when the surface is exposed to a −1 V/Å field value, resulting in the formation of a CO3− complex. The strong interaction is reflected through a direct charge transfer and an orbital splitting within the Olatticep-states. While CO2 remains physisorbed when a +1 V/Å field value is applied, our total density of states analysis indicates that a positive field pulls the charge away from the adsorbate, resulting in a shift of its bonding and antibonding peaks to higher energies, allowing a stronger interaction with YSZ (111). Ultimately, the effect of an electric field toward CO2 adsorption is not negligible, and there is potential in utilizing electric fields to favor the thermodynamics of CO2 reduction on heterogeneous catalysts.

scholarly journals Turbulence Enhanced Ferroelectric-Nanocrystal-Based Photocatalysis in Urchin-like TiO2/BaTiO3 Microspheres for Hydrogen Evolution

2021 ◽  
Author(s):  
Haidong Li ◽  
Yanyan Song ◽  
Jiyun Zhang ◽  
Jiating He
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Hydrogen Evolution ◽  
Mechanical Energy ◽  
Piezoelectric Potential ◽  
Induced Charge

The application of built-in electric field due to piezoelectric potential is one of the most efficient approaches for photo-induced charge transport and separation. However, the efficiency of converting mechanical energy...

Electric field activated nonlinear anisotropic charge transport in doped polypyrrole

2013 ◽  
Vol 103 (23) ◽  
pp. 233305 ◽  
Author(s):  
Vaibhav Varade ◽  
P. Anjaneyulu ◽  
C. S. Suchand Sangeeth ◽  
K. P. Ramesh ◽  
R. Menon
Keyword(s):  
Electric Field ◽  
Charge Transport

Internal Electric Field Estimation, Charge Transport and Detector Performance of As-Grown ${\rm Cd}_{0.9}{\rm Zn}_{0.1}{\rm Te:In}$ by THM

2011 ◽  
Vol 58 (4) ◽  
pp. 1949-1952 ◽  
Author(s):  
Utpal Narayan Roy ◽  
Stephen Weiler ◽  
Juergen Stein ◽  
Michael Groza ◽  
Vladimir Buliga ◽  
...  
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Internal Electric Field ◽  
Detector Performance ◽  
Field Estimation
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