The electrochemical reduction of CO2 is an efficient method to convert waste into hydrocarbon fuels, among which methanol the direct liquid fuel in cells (DMFC). Copper most widely used catalyst for reaction (CO2RR); affected by surface morphology copper. Here, effect and mechanism CO2RR on three typical low-index Cu (100), (110) (111) surfaces are studied. According our results, provides optim...

In order to determine the working conditions for direct methanol fuel cell and to gain higher performances, two one-dimensional, steady-state numerical models have been presented to evaluate the performance of direct methanol fuel cells (DMFCs) using Matlab. Genetic algorithm and direct Monte Carlo algorithm have been employed to determine the optimization operation conditions of the DMFC. The ...

An overview of the synthesis and characterization of several Pt-Ru or Pt-MoNulcan carbon nanocomposites and one Pt-Rdgraphitic carbon nanofiber nanocomposite is provided. Each binary metal alloy nanocluster composition is accessed through the t h d decomposition of a single-source molecular precursor containing the desired metal stoichiometry. Microwave heating techniques are. used to form a Pt...

The possibility of implementing fuel cell technology in Unmanned Aerial Vehicle (UAV) propulsion systems is considered. Potential advantages of the Proton Exchange Membrane or Polymer Electrolyte Membrane (PEMFC) and Direct Methanol Fuel Cells (DMFC), their fuels (hydrogen and methanol), and their storage systems are revised from technical and environmental standpoints. Some operating commercia...

A deep analysis of the Fuel Cells technologies state of the art has been done in this article. After a general description of the fuel cell base structure the six most important fuel cell technologies Polymeric Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Phosphoric Acid Fuel Cell (PAFC), Molten Carbonate Fuel Cell (MCFC), Solid Oxide Fu...

most of the researches do not differentiate between intuitive critic and passive one – in the field of features, applications and methods. this critical school is called emotional or passive critics which emphasizes aesthetics. thus sensitivity is not the only appliance to wisdom but is a mean to inspire happiness or unhappiness feeling. consequently the passive (critical) school is the result ...