electrochemical activated Articles
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Enhanced power production from microbial fuel cells with high cell density culture
Improvement of power production in a microbial fuel cell (MFC) with a high cell density culture strategy was developed. By using high cell density culture, the voltage output and power density output of the MFC were enhanced about 0.6 and 1.6 times compared to the control, respectively. Further analysis showed that riboflavin concentration in the MFC was dramatically increased from 0.1 mg/L ...
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A comparison of electrochemical oxidation performance of PbO2 and SnO2 electrodes
PbO2 and SnO2 are two promising anode materials for electrochemical oxidation. In order to highlight the difference between two kinds of electrodes in an electrochemical oxidation process, their morphology, structural, oxygen evolution overpotential (OEP), electrochemical activity and service life-time were compared in detail in this paper. Surface characterization by scanning electron ...
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Oxocarbon Salts for Fast Rechargeable Batteries
Oxocarbon salts (M2(CO)n) prepared through one-pot proton exchange reactions with different metal ions (M=Li, Na, K) and frameworks (n=4, 5, 6) have been rationally designed and used as electrodes in rechargeable Li, Na, and K-ion batteries. The results show that M2(CO)5/M2(CO)6 salts can insert two or four metal ions reversibly, while M2(CO)4 shows less electrochemical activity. Especially, we ...
By SusChem
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Electrochemically activated water as an alternative to chlorine for decentralized disinfection
Electrochemically activated (ECA) water is being extensively studied and considered as an alternative to chlorine for disinfection. Some researchers claim that ECA is by and large a chlorine solution, while others claim the presence of reactive oxygen species such as ozone and hydroxyl radicals in addition to chlorine. This study compares sodium hypochlorite (NaOCl) and ECA in terms of ...
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Reduction of start-up time through bioaugmentation process in microbial fuel cells using an isolate from dark fermentative spent media fed anode
An electrochemically active bacteria Pseudomonas aeruginosa IIT BT SS1 was isolated from a dark fermentative spent media fed anode, and a bioaugmentation technique using the isolated strain was used to improve the start-up time of a microbial fuel cell (MFC). Higher volumetric current density and lower start-up time were observed with the augmented system MFC-PM (13.7 A/m3) when compared with ...
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Electrochemical Exhaust Gas Purification - SAE technical paper series
This text is divided into Iwo parts; the first part gives a short recapitulation 01 the development status 01 the eiectrochemical reactor lor soot removal, while the second part gives a description 01 activities on electrochemical NOx reduction. The Electrochemical Reactor lor filtration and continuous combustion 01 soot lrom diesel exhaust gas has been described earlier [1, 2]. The reactor size ...
By Dinex A/S
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Top 6 Most Common Gas Sensors & Detectors
1) Semiconductor gas sensor It is made by using the principle that the electrical conductivity of some metal oxide semiconductor materials changes with the composition of the ambient gas at a certain temperature. Semiconductor gas sensor can be effectively used for: methane, ethane, propane, butane, alcohol, formaldehyde, carbon monoxide, carbon dioxide, ethylene, acetylene, vinyl chloride, ...
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What is electrochemical detection and what are its applications?
Electrochemical detection (ECD) for HPLC or UHPLC / UPLC is an extremely selective and sensitive detection technique that is applied in several analyses such as the neurotransmitters dopamine, serotonin and noradrenalin, or analytes such as 5HIAA, catecholamines and metanephrines. ECD has an enormous linear dynamic range of more than 6 orders of magnitude. This means that concentrations can be ...
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Anode and cathode materials characterization for a microbial fuel cell in half cell configuration
Microbial fuel cells (MFCs) are novel bioelectrochemical devices for spontaneous conversion of biomass into electricity through the metabolic activity of the bacteria. Microbial production of electricity may become an important source of bioenergy in future because MFCs offer the possibility of extracting electric current from a wide range of soluble or dissolved complex organic wastes and ...
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Enhancing capacitive deionization technology as an effective method for water treatment using commercially available graphene
In recent years, capacitive deionization (CDI) has been reported as one of the emerging technologies developed with the purpose of water desalination. This work is aimed at the integration of supercapacitor electrodes for efficient removal of ions from water, and thus to achieve an energy efficient, and cost-effective water treatment process. Our objective is to transfer the vast knowledge of ...
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Raman spectroelectrochemistry from India to Spain: History and applications
One of the most interesting spectroelectrochemical techniques combines the fields of electrochemistry and Raman spectroscopy. Although the Raman effect was theoretically predicted by Smekal in 1923 [1] as well as by Kramers and Heisenberg in 1925 [2], the first physical evidence was found in 1928 by the Indian scientist Chandrasekhara Venkata Raman [3] and almost simultaneously by Soviet ...
By Metrohm AG
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The future of ammonia production is electrochemistry
Ammonia is the world’s most common and widely used nitrogen-based fertilizer in the agricultural sector. Due to the exponential growth in world population over the last 140 years, the demand for ammonia continues to rise. Besides its value in agriculture, ammonia has also received significant consideration within the hydrogen economy for its potential as a viable hydrogen carrier to ...
By Metrohm AG
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Wastewater Treatment: An Important Step In Preventing Pollution
Water treatment companies treat any wastewater entering their facilities, but large volumes of stormwater can overwhelm pipe capacities and treatment facilities during heavy rainfall and capacity events. Excess water then bypasses treatment and discharges directly into waterways through release points known as combined sewage overflows (CSOs), causing river and ocean pollution plaguing ...
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Determination of reaction rate constants for phenol oxidation using SnO2/Ti anodes coupled with activated carbon adsorption in the presence of TiO2 as catalyst
Series of experiments for phenol degradation with assistance of TiO2 catalyst at pH of 6.5 and temperature of 25°C were conducted using a lab-scale electrochemical reactor constructed in our laboratory. According to the results, at the presence of the TiO2 catalyst the removal of phenol was increased and first-order kinetics could describe the evolution of phenol concentration. For inspecting ...
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Electrochemical oxidation of m-cresol purple dye in aqueous media
The present investigation showed that the indicator dye m-cresol purple (mCP) was degraded in a laboratory scale, undivided electrolysis cell system. A platinum anode was used for generation of chlorine in the dye solution. The influence of supporting electrolyte, applied voltage, pH, initial dye concentration and temperature were studied. The ultraviolet-visible spectra of samples during the ...
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Carbon Monoxide Monitoring
Carbon monoxide, one of the most abundant pollutant gases. The gas is indetectable to humans as one can not see, smell, or taste. However, exposure to high levels of CO can cause CO poisoning leading to serious health issues, giving it the name “The Silent Killer.” CO monitoring is the most effective way to know if one is at risk of carbon monoxide exposure. Meanwhile, this article ...
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