Enhanced surface binding energy regulates uniform potassium deposition for stable potassium metal anodes

2020 ◽  
Vol 8 (11) ◽  
pp. 5671-5678 ◽  
Author(s):  
Xinxin Zhao ◽  
Fengjiao Chen ◽  
Junqing Liu ◽  
Mingren Cheng ◽  
Hai Su ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Binding Energy ◽  
Surface Binding ◽  
Surface Binding Energy ◽  
Enhanced Surface ◽  
Coated Carbon ◽  
Potassium Deposition ◽  
Metal Anodes

A SnO2-coated carbon fiber mat is fabricated and used to guide uniform K nucleation/deposition for dendrite free K metal anodes.

scholarly journals Enhancement of Electrocatalytic Oxygen Evolution by Chiral Molecular Functionalization of Hybrid 2D Electrodes

2021 ◽  
Author(s):  
Yunchang Liang ◽  
Karla Banjac ◽  
Kévin Martin ◽  
Nicolas Zigon ◽  
Seunghwa Lee ◽  
...  
Keyword(s):  
Binding Energy ◽  
Oxygen Evolution ◽  
State Of The Art ◽  
Chiral Molecules ◽  
Surface Binding ◽  
Surface Binding Energy ◽  
Energy Conversion And Storage ◽  
Polarization Mechanism ◽  
And Storage ◽  
Unconventional Methods

A sustainable future requires highly efficient energy conversion and storage processes, where electrocatalysis plays a crucial role. The activity of an electrocatalyst is governed by the binding energy towards the reaction intermediates, while the scaling relationships prevent the improvement of a catalytic system over its volcano-plot limits. To overcome these limitations, unconventional methods that are not fully determined by the surface binding energy can be helpful. Here, we use organic chiral molecules, i.e., hetero-helicenes, to boost the oxygen evolution reaction (OER) by ca. 131.5 % (at the potential of 1.65 V vs. RHE) at state-of-the-art 2D catalysts via a spin-polarization mechanism. Our results show that chiral molecule-functionalization is able to increase the OER activity of catalysts beyond the volcano limits. A guideline for optimizing the catalytic activity via chiral molecular functionalization of hybrid 2D electrodes is given.

scholarly journals Enhancement of Electrocatalytic Oxygen Evolution by Chiral Molecular Functionalization of Hybrid 2D Electrodes

2021 ◽  
Author(s):  
Yunchang Liang ◽  
Karla Banjac ◽  
Kévin Martin ◽  
Nicolas Zigon ◽  
Seunghwa Lee ◽  
...  
Keyword(s):  
Binding Energy ◽  
Oxygen Evolution ◽  
State Of The Art ◽  
Chiral Molecules ◽  
Surface Binding ◽  
Surface Binding Energy ◽  
Energy Conversion And Storage ◽  
Polarization Mechanism ◽  
And Storage ◽  
Unconventional Methods

Abstract A sustainable future requires highly efficient energy conversion and storage processes, where electrocatalysis plays a crucial role. The activity of an electrocatalyst is governed by the binding energy towards the reaction intermediates, while the scaling relationships prevent the improvement of a catalytic system over its volcano-plot limits. To overcome these limitations, unconventional methods that are not fully determined by the surface binding energy can be helpful. Here, we use organic chiral molecules, i.e., hetero-helicenes, to boost the oxygen evolution reaction (OER) by ca. 131.5% (at the potential of 1.65 V vs. RHE) at state-of-the-art 2D catalysts via a spin-polarization mechanism. Our results show that chiral molecule-functionalization is able to increase the OER activity of catalysts beyond the volcano limits. A guideline for optimizing the catalytic activity via chiral molecular functionalization of hybrid 2D electrodes is given.

scholarly journals Analytical Form of Sputtering in Relation to Surface Binding Energy for Different Types of Perovskites

2019 ◽  
Vol 1299 ◽  
pp. 012022 ◽  
Author(s):  
Akinwumi Akinpelu ◽  
Oluwole E. Oyewande ◽  
Adaeze ◽  
Arijaje T. Emuobor ◽  
C Olawole ◽  
...  
Keyword(s):  
Binding Energy ◽  
Analytical Form ◽  
Surface Binding ◽  
Surface Binding Energy ◽  
Different Types

Simulating Solar-Wind-Ion Sputtering of Sodium from Mercury’s Surface: The Importance of the Surface Binding Energy 

2021 ◽  
Author(s):  
Liam Morrissey ◽  
Orenthal Tucker ◽  
Rosemary Killen ◽  
Dennis Herschback ◽  
Daniel W. Savin
Keyword(s):  
Solar Wind ◽  
Binding Energy ◽  
Ion Sputtering ◽  
Surface Binding ◽  
Surface Binding Energy

Surface binding energy shifts, mixed valence and localization of 4f electrons: Ce vs. Sm (invited)

1981 ◽  
Vol 52 (3) ◽  
pp. 2123-2128 ◽  
Author(s):  
W. Gudat ◽  
M. Campagna ◽  
R. Rosei ◽  
J. H. Weaver ◽  
W. Eberhardt ◽  
...  
Keyword(s):  
Binding Energy ◽  
Mixed Valence ◽  
Surface Binding ◽  
Surface Binding Energy

Effect of Different Particle Size of Nano-Zinc Oxide on the Surface Binding Energy in Polyimide/Zinc Oxide Composites

2013 ◽  
Vol 785-786 ◽  
pp. 556-560 ◽  
Author(s):  
Jia Qi Lin ◽  
Hui Lin ◽  
Wen Long Yang ◽  
Xiao Kang Li ◽  
Ying Liu ◽  
...  
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
Binding Energy ◽  
Surface Binding ◽  
Nano Zno ◽  
Surface Binding Energy ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Oxide Composites ◽  
The Relationship

The surface binding energy between the polyimide(PI) and zinc oxide (ZnO) have been simulated using the molecular dynamics theory.The PI / ZnO model has been established by using Forcite program package of Materials Studio software.The total atoms number about 300 million, the radius of the nano-ZnO cluster model have five groups are respectively 0.5 nm, 1 nm, 1.5 nm, 2 nm, 2.5 nm.The effect of different particle size of nano-ZnO on surface binding energy in PI / ZnO composites was investigated. The relationship between the surface binding energy of PI / ZnO composites and the nano-Zno radius, the maximum of surface binding energy were obtained. The computed results show that the intermolecular bonds between nano-ZnO and PI are mainly van der waals bonds.And the surface atomic number of nano-ZnO increases along with the increasing of nano-ZnO radius, indicating that the increasing of contact surface between the nano-ZnO and PI, which lead to the surface binding energy increases, the total energy lower and the system more stable.

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