KOH concentration
Effect of KOH Concentration on the Oxygen Reduction Kinetics Catalyzed by Heat-Treated Co-Pyridine/C Electrocatalysts
... different KOH concentrations. The KOH concentration dependences of these three waves' average peak potentials were obtained, which were used to propose their surface electrochemical ...
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Compressive Strength of Metakaolin Based Geopolymers: Influence of KOH Concentration, Temperature, Time and Relative Humidity
... The RSP is the theoretical three-dimensional surface plot (Figure 4(a)), and the contour plot is the two-dimensional (Figure 4(b)). This plot, first of all, represents the lines of constant response which are drawn in ...
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Kinetic study of ethanol and methanol electro-oxidation on Pd-vulcan XC-72R/Cu electrocatalyst in alkaline media
... The concentration of alkaline agent is one of the most effective parameters on ethanol and methanol electro-oxidation in direct alcohol fuel ...of KOH concentration on EOR and MOR, linear sweep ...
8
Adsorption of Cu(Ii) Ions in Aqueous Solution Onto Limonia Acidissima Shellbased Activated Carbon: Kinetic and Isotherm Studies
... tration, KOH-activator concentration and adsorption temperature on the Cu(II) ions adsorption capacity of the LAFS-AC were ...tration, KOH concentration and temperature of adsorp- tion were in ...
8
Sustainable solidification of ferrochrome slag through geopolymerisation: a look at the effect of curing time, type of activator and liquid solid ratio
... of KOH concentration, liquid solid ratio (L/S), content of potassium metalisicate (KS) or potassium aluminate (KA), curing time on the unconfined compressive strength (UCS) and metal leachability of the ...
10
EFFECT OF ELECTROLYTE CONCENTRATION ON SUPERCAPACITOR PERFORMANCE OF GRAPHENE- NIO COMPOSITE
... of KOH concentration on capacitive performanceof GNC electrode, CV and EIS studies were ...various concentration of ...M KOH is ...M KOH. EIS spectra for GNC electrode in different ...
6
Development of an Improved Sub-Molten Salt Method for Production of Potassium Titanate from Ilmenite under Industrial Conditions
... optimization of process variables. It develops a mathematical model with the best fit to the data obtained from the experimental design and determines optimal value of the independent variables, which produces a maximum ...
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Experimental and Theoretical Considerations of Electrolyte Conductivity in Glucose Alkaline Fuel Cell
... the KOH concentration (Figure 3) and conductivity (Figure 4), led to the fol- lowing inferences: The rate of KOH concentration changed during the first day; at a concentration of ...M ...
7
Preparation of KOH/CaO/C Supported Biodiesel Catalyst and Application Process
... in KOH solutions with vary- ing concentration for 20 h, followed by drying at 105˚C for 3 h and calcination at 500˚C for 5 ...rising concentration of KOH, and is maximized at the ...
9
Synthesis and Photocatalytic Activity of Bi2Fe4O9 Using KOH as Mineralizer via Hydrothermal Method
... high KOH concentration, the surface energy of the particles can be changed, and the surface energy of other directions might become higher than that of above spe- cific direction, promoting the ...
5
Hydrolysis optimization and characterization study of preparing fatty acids from Jatropha curcasseed oil
... of ethanolic KOH (M), reaction temperature (°C), and reaction time (h), respectively. The settings for the inde- pendent variables were as follows (low and high values): KOH concentration of 1.00 and ...
9
“Koh Ngomong” and a Desire to Do Whistleblowing: An Experimental Study
... ABSTRACT: Koh Ngomong is the attitude of Balinese who are reluctant to reveal something to maintain harmonization of relations between ...of Koh Ngomong, which is especially related to whistleblowing ...of ...
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Formation of Lanthanum Hydroxide Nanostructures: Effect of NaOH and KOH Solvents
... of KOH revealed that the spacing between the fringes is about ...that KOH has more effect on crystallization of the obtained nanostructures and the elliptical nanoparticles have higher ...both KOH ...
8
Adsorption Studies of Oil Spill Clean-up Using Coconut Coir Activated Carbon (CCAC)
... The coconut coir samples were washed several times using tap water and finally with distilled water and thereafter dried to constant weight at 105°C for 24 h in a laboratory drying oven (DHG-9101 model) to remove excess ...
12
Experimental Research of Liquid Infiltration and Leakage in Zinc Air Battery
... This study indicates that the long time store of Zinc Air Battery results in a surface seepage phenomenon in gas diffusion porous electrode. Figure 2 and Table 1 shows that the PTFE wetting angle changed by immersion ...
9
Fabrication of Yolk Shell Cu@C Nanocomposites as High Performance Catalysts in Oxidative Carbonylation of Methanol to Dimethyl Carbonate
... In summary, we have presented a facile ship-in-a-bottle strategy for the fabrication of yolk-carbon shell nano- structures composed of Cu NPs with tailored size in narrow distributions by adjusting the ...
9
Synthesis and Characterization of Porous Carbon from Petroleum Pitch Using KOH
... temperature, KOH/Petroleum coke ratio (KPR), activation duration and to optimize the process conditions for maximizing the porous carbon yield and the BET surface ...
17
The Influence of Anode Composition on the Electrochemical Ferrate (VI) Production in Molten KOH
... electrolyte concentration, temperature, as well as with the carbon content in iron electrode ...in KOH indicating qualitatively different dissolutions of iron ...pure KOH or ...of KOH ...
11
Electrochemistry of Ethanol Oxidation on Ni Pt Alloy Electrodes in KOH Solutions
... oxidation that occurred on the electrode surface of Ni-Pt and Ni electrodes have different kinetic behavior. The relation- ship between oxidation current and ethanol concentration was non-linear in the high range ...
9
High–performance Activated Carbons Prepared by KOH Activation of Gulfweed for Supercapacitors
... prepared by KOH activation of gulfweed. The obtained activated carbons possess not only high specific surface areas and large pore volumes, but also an appropriate pore width for transport of electrolyte ions. ...
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