Efficient Electrocatalytic N2 Reduction on Three-Phase Interface Coupled in a Three-Compartment Flow Reactor for the Ambient NH3 Synthesis

2021 ◽  
Author(s):  
Xin Wei ◽  
Minghua Pu ◽  
Yiman Jin ◽  
Matthias Wessling
Keyword(s):  
Flow Reactor ◽  
Phase Interface ◽  
Three Phase ◽  
Ambient Nh3

Wetting Behavior at Micro-/Nanoscales: Direct Imaging of a Microscopic Water/Air/Solid Three-Phase Interface

Small ◽  
2009 ◽  
Vol 5 (8) ◽  
pp. 908-912 ◽  
Author(s):  
Peipei Chen ◽  
Long Chen ◽  
Dong Han ◽  
Jin Zhai ◽  
Yongmei Zheng ◽  
...  
Keyword(s):  
Phase Interface ◽  
Direct Imaging ◽  
Wetting Behavior ◽  
Three Phase

Enhancement of interfacial property by novel solid ionomer CsHSO4-H4SiW12O40 for the three-phase interface of a medium-temperature anhydrous fuel cell

2019 ◽  
Vol 253 ◽  
pp. 201-204 ◽  
Author(s):  
Keiichiro Maegawa ◽  
Kyaw Zay Ya ◽  
Wai Kian Tan ◽  
Go Kawamura ◽  
Toshiaki Hattori ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Phase Interface ◽  
Interfacial Property ◽  
Medium Temperature ◽  
Three Phase

scholarly journals Electro Winning from Dilute Solutions at Enhanced Rates using Three-Phase Flow Reactor

2020 ◽  
Vol 9 (4) ◽  
pp. 1740-1745
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Fluidized Bed ◽  
Flow Reactor ◽  
Liquid Velocity ◽  
Particle Diameter ◽  
Limiting Current ◽  
Process Equipment ◽  
Three Phase

Enhancement of mass transfer coefficient is highly desirable for economic design of process equipment. The present study is essentially carried out to know the effect of flow variables such as gas and liquid velocities and geometric parameters of the internal on mass transfer coefficients in a three phase fluidized bed. The mass transfer coefficient data were obtained using a string of cones internal in a three-phase fluidized bed electrochemical reactor. The flow system investigated was nitrogen, a fluid electrolyte and spherical glass beads as gas, liquid and solid phases respectively. Limiting current technique was employed to obtain mass transfer data. The internal comprises of a string of cones arranged concentrically on a central rod which is placed coaxially in a three phase fluidized bed. The presence of internal in three phase fluidized beds augmented the mass transfer coefficient significantly. In the present investigation it was found that the effect of gas velocity, liquid velocity, rod diameter and cone diameter was only marginal. However, the influence of pitch, half apex angle of cone and particle diameter was found to be significant. Correlations were developed based on least squares regression analysis for the prediction of mass transfer coefficient in terms of pertinent variables

Generation of hydrogen peroxide by reduction of oxygen in semihydrophobic trickle electrodes

1991 ◽  
Vol 56 (2) ◽  
pp. 309-316 ◽  
Author(s):  
Otomar Špalek ◽  
Karel Balogh
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Oxygen Reduction ◽  
Surface Area ◽  
Phase Interface ◽  
Electrochemical Activity ◽  
Polarization Curves ◽  
Electric Resistance ◽  
Graphite Felt ◽  
Three Phase

The reduction of oxygen to hydrogen peroxide was studied in semihydrophobic trickle electrodes prepared from crushed graphite and teflonized carbon black. The potential of these electrodes was found markedly more positive and the peroxide current yields appreciably higher than for electrodes made of used crushed graphite. The reason for this is the higher surface area of the electrodes containing carbon black and occurrence of a three-phase interface in them. The relevant properties, i.e. electric resistance, electrolyte holdup, polarization curves for the oxygen reduction and pexide current yields, were also studied for trickle electrodes containing graphite felt. The electrochemical activity of electrodes made from untreated felt was found rather low but it increased several times when felt pretreated by oxidation was used.

Simultaneous High Conversion and Selectivity in Olefin Oxidation with Oxygen Through Solid/Liquid/Gas Three‐Phase Interface Design

ChemCatChem ◽  
2019 ◽  
Vol 11 (18) ◽  
pp. 4524-4528 ◽  
Author(s):  
Zhaohua Li ◽  
Changyan Cao ◽  
Zhongpeng Zhu ◽  
Lei Jiang ◽  
Weiguo Song
Keyword(s):  
Interface Design ◽  
Phase Interface ◽  
High Conversion ◽  
Olefin Oxidation ◽  
Three Phase ◽  
Solid Liquid

Catalytic Reduction of CO[sub 2] to Ethylene by Electrolysis at a Three-Phase Interface

2003 ◽  
Vol 150 (9) ◽  
pp. D163 ◽  
Author(s):  
Kotaro Ogura ◽  
Hiroshi Yano ◽  
Fukutaro Shirai
Keyword(s):  
Catalytic Reduction ◽  
Phase Interface ◽  
Three Phase
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