Comparison between an electrochemical reactor with and without membrane for the nor oxidation using novel ceramic electrodes

2020 ◽  
Vol 268 ◽  
pp. 110710
Author(s):  
J. Carrillo-Abad ◽  
J. Mora-Gómez ◽  
M. García-Gabaldón ◽  
S. Mestre ◽  
V. Pérez-Herranz
Keyword(s):  
Electrochemical Reactor ◽  
Ceramic Electrodes

Downflow Bubble Column Electrochemical Reactor (DBCER): In-situ production of H2O2 and O3 to conduct Electroperoxone Process

2021 ◽  
pp. 105148
Author(s):  
Germán Santana-Martínez ◽  
Gabriela Roa-Morales ◽  
Leobardo Gómez-Olivan ◽  
Ever Peralta-Reyes ◽  
Rubí Romero ◽  
...  
Keyword(s):  
Bubble Column ◽  
Electrochemical Reactor ◽  
In Situ Production

scholarly journals Efficient electrocatalytic nitrogen reduction to ammonia with aqueous silver nanodots

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Wenyi Li ◽  
Ke Li ◽  
Yixing Ye ◽  
Shengbo Zhang ◽  
Yanyan Liu ◽  
...  
Keyword(s):  
Active Sites ◽  
Theoretical Calculations ◽  
Current Collector ◽  
Electrochemical Reactor ◽  
Reduction Reaction ◽  
Solution Ph ◽  
Faradaic Efficiency ◽  
Yield Rate ◽  
Silver Nanodots ◽  
Ti Mesh

AbstractThe electrocatalytic nitrogen (N2) reduction reaction (NRR) relies on the development of highly efficient electrocatalysts and electrocatalysis systems. Herein, we report a non-loading electrocatalysis system, where the electrocatalysts are dispersed in aqueous solution rather than loading them on electrode substrates. The system consists of aqueous Ag nanodots (AgNDs) as the catalyst and metallic titanium (Ti) mesh as the current collector for electrocatalytic NRR. The as-synthesized AgNDs, homogeneously dispersed in 0.1 M Na2SO4 solution (pH = 10.5), can achieve an NH3 yield rate of 600.4 ± 23.0 μg h−1 mgAg−1 with a faradaic efficiency (FE) of 10.1 ± 0.7% at −0.25 V (vs. RHE). The FE can be further improved to be 20.1 ± 0.9% at the same potential by using Ti mesh modified with oxygen vacancy-rich TiO2 nanosheets as the current collector. Utilizing the aqueous AgNDs catalyst, a Ti plate based two-electrode configured flow-type electrochemical reactor was developed to achieve an NH3 yield rate of 804.5 ± 30.6 μg h−1 mgAg−1 with a FE of 8.2 ± 0.5% at a voltage of −1.8 V. The designed non-loading electrocatalysis system takes full advantage of the AgNDs’ active sites for N2 adsorption and activation, following an alternative hydrogenation mechanism revealed by theoretical calculations.

Design methodology for mass transfer-enhanced large-scale electrochemical reactor for CO2 reduction

2021 ◽  
pp. 130265
Author(s):  
Byungchan Jung ◽  
Seongho Park ◽  
Chulwan Lim ◽  
Woonghee Lee ◽  
Youngsub Lim ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Design Methodology ◽  
Large Scale ◽  
Co2 Reduction ◽  
Electrochemical Reactor

Long-chain phenols oxidation using a flow electrochemical reactor assembled with a TiO2-RuO2-IrO2 DSA electrode

2021 ◽  
Vol 264 ◽  
pp. 118425
Author(s):  
Mateus C. Medeiros ◽  
Jefferson B. de Medeiros ◽  
Carlos A. Martínez-Huitle ◽  
Thiago Mielle B.F. Oliveira ◽  
Selma E. Mazzetto ◽  
...  
Keyword(s):  
Electrochemical Reactor ◽  
Long Chain ◽  
Dsa Electrode

Properties of the Electro-Spark Deposited Coatings - Technology and Applications

2015 ◽  
Vol 818 ◽  
pp. 61-64 ◽  
Author(s):  
Norbert Radek ◽  
Jozef Bronček ◽  
Peter Fabian ◽  
Jacek Pietraszek ◽  
Krzysztof Antoszewski
Keyword(s):  
Wear Resistance ◽  
Powder Metallurgy ◽  
Carbon Steel ◽  
Abrasive Wear ◽  
Hot Pressing ◽  
Abrasive Wear Resistance ◽  
Roughness Analysis ◽  
Ceramic Electrodes ◽  
Machine Parts ◽  
Wear Coatings

The paper is concerned with the performance properties of electro-spark deposited coatings, which were determined basing on microstructural and roughness analysis and application tests. The studies were conducted using of the tungsten carbide-ceramic electrodes produced by the powder metallurgy hot pressing route. The anti-wear coatings were electro-spark deposited over C45 carbon steel by means of an EIL-8A. These coatings are likely to be applied to increase the abrasive wear resistance of tools and machine parts.

Electrochemical reactor systems for pollution control and the removal of toxic metals from industrial wastewaters

1988 ◽  
Vol 53 (6) ◽  
pp. 1107-1133 ◽  
Author(s):  
Bernard Fleet
Keyword(s):  
Control Systems ◽  
Pollution Control ◽  
Waste Treatment ◽  
Three Dimensional ◽  
Electrochemical Reactor ◽  
Two Dimensional ◽  
Chemical Waste ◽  
Control Applications ◽  
Recovery Processes ◽  
Key Features

A review of electrochemical reactor systems for the recovery of metals and for pollution control applications is presented. The major engineering factors which influence the design of reactors are evaluated and the key features of two-dimensional and three-dimensional reactor designs are discussed. Some examples of the application of electrochemical reactors to the recovery of metals from dilute solutions are given in the form of case studies, covering both pollution control and resource recovery processes. Finally a comparison is made of the relative technical and economic merits of electrochemical recovery pollution control systems and conventional chemical waste treatment routes.

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