Role of gas bubbles adsorbed on a carbon electrode: electroreduction of chlorine gas in fused salts

1989 ◽  
Vol 19 (5) ◽  
pp. 649-656 ◽  
Author(s):  
F. Lantelme ◽  
H. Alexopoulos ◽  
O. Haas
Keyword(s):  
Gas Bubbles ◽  
Carbon Electrode ◽  
Fused Salts ◽  
Chlorine Gas

scholarly journals New insights into the mechanisms of ultrasonic emulsification in the oil-water system and the role of gas bubbles

2021 ◽  
pp. 105501
Author(s):  
W.H. Wu ◽  
D.G. Eskin ◽  
A. Priyadarshi ◽  
T. Subroto ◽  
I. Tzanakis ◽  
...  
Keyword(s):  
Water System ◽  
Gas Bubbles ◽  
Ultrasonic Emulsification ◽  
Oil Water

Fundamental role of Fe–N–C active sites in a CO2-derived ultra-porous carbon electrode for inhibiting shuttle phenomena in Li–S batteries

2021 ◽  
Author(s):  
Jeongwoo Yang ◽  
Dong Woo Kang ◽  
Hodong Kim ◽  
Jae Hyun Park ◽  
Won Yeong Choi ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Active Sites ◽  
Solution Treatment ◽  
Ammonia Solution ◽  
Energy Reduction ◽  
Carbon Electrode ◽  
Lithium Sulfide ◽  
Porous Carbon Electrode ◽  
Li Ion

The homogeneously distributed Fe–N–C active sites of TCPC/Fe–N–C synthesized through CO2 conversion and ammonia solution treatment enable thermodynamically favorable energy reduction for lithium sulfide conversion and Li-ion transport.

Potentiostatic study of halogen—active carbon electrode in fused salts

1979 ◽  
Vol 24 (2) ◽  
pp. 115-119 ◽  
Author(s):  
S. Sternberg ◽  
I. Galasiu ◽  
D. Geana
Keyword(s):  
Active Carbon ◽  
Carbon Electrode ◽  
Fused Salts

The role of hydrogen gas bubble in hydrophobic properties in mixed micro layer (Al2O3+Mg)

2020 ◽  
Vol 1 (105) ◽  
pp. 5-16
Author(s):  
R. Subagyo ◽  
I.N.G. Wardana ◽  
A. Widodo ◽  
E. Siswanto
Keyword(s):  
Surface Tension ◽  
Practical Implication ◽  
Gas Bubbles ◽  
Droplet Surface ◽  
Hydrogen Gas ◽  
Hydrophobic Properties ◽  
Micro Particles ◽  
Hydrophobic Nature ◽  
High Level

Purpose: To find out more about the role of hydrogen gas bubbles in improving the hydrophobic nature of a layer, especially in the layers of microparticles Alumina (Al2O3) with Magnesium (Mg). Design/methodology/approach: The method used is an experimental method by first conducting the SEM-Edx test, testing the content of the elements in the waxy layer and observing the topographic shape on the surface of the taro leaves. Then prepare a mixture of Alumina micro particles with Magnesium to investigate the hydrophobicity of the taro leaves. The mixed presentations between Alumina and Magnesium are: (0, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100%). Findings: The results of this study found three conditions of the Alumina and Magnesium mix layer when in contact with a droplet, namely: Hydrophobic conditions occur when the surface structure of the rough mixed micro layer forms micro crevices, then bubbles of hydrogen gas fill it to form trapped gases. When droplets come in contact with the surface of the mixed layer the effect of the gas being trapped is very effective at creating hydrophobic properties. While the transition conditions occur when more and more hydrogen gas bubbles along with the increasing percentage of Mg and the opposite occurs in micro particle fissures. Bubbles fill the micro-gap space fully so that the tops of the micro particles are covered by bubbles. This causes the droplet surface tension to weaken, so the droplet contact angle decreases. Furthermore, hydrophilic conditions occur when the micro gap is getting narrower as the percentage of Mg increases and the formation of hydrogen gas bubbles increases. The high level of bubble density in the micro gap closes the peaks of the micro particles, which results in the surface tension of the droplet getting weaker. In this weak surface tension condition, the hydrogen bubble can break through the droplet surface tension and change its hydrophobic nature to hydrophilic. Research limitations/implications: This research is limited to the hydrophobicity of Alumina and Magnesium materials, mainly to investigate the role of hydrogen gas in supporting the hydrophobic nature of taro leaves (Colocasia esculenta). Practical implications: The practical implication in this study is the use of hydrophobic membranes which are widely applied to filtration. Originality/value: Discovered the composition of a membrane mixture of Alumina (Al2O3) and Magnesium (Mg) to create hydrophilic and hydrophobic conditions.

Role of turbulent flow and gas bubbles in enhancing mass transfer in batch electrocoagulation: a brief review

2019 ◽  
Vol 161 ◽  
pp. 35-47 ◽  
Author(s):  
Noorzalila Muhammad Niza ◽  
Madu Ijanu Emmanuel ◽  
Abdubaki Mohamed Hussen Shadi ◽  
Mohd Suffian Mohd Yusof ◽  
Mohammad Anuar Kamaruddin
Keyword(s):  
Mass Transfer ◽  
Turbulent Flow ◽  
Gas Bubbles

Mechanism of Oxygen Reduction in Aprotic Li–Air Batteries: The Role of Carbon Electrode Surface Structure

2017 ◽  
Vol 121 (3) ◽  
pp. 1569-1577 ◽  
Author(s):  
Alina I. Belova ◽  
David G. Kwabi ◽  
Lada V. Yashina ◽  
Yang Shao-Horn ◽  
Daniil M. Itkis
Keyword(s):  
Surface Structure ◽  
Oxygen Reduction ◽  
Electrode Surface ◽  
Carbon Electrode
Sign in / Sign up

Export Citation Format

Share Document