Results 31 to 40 of about 232,382 (312)
Surface Modification of Glassy Carbon Electrode by Ni-Cu Nanoparticles as a Competitive Electrode for Ethanol Electro-Oxidation [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2018 In the present study, Nickel-Copper nanoparticles were electrodeposited on glassy carbon electrode (GCE) by using electroplating deposition method. The prepared electrode was characterized by scanning electron microscopy (SEM) and elemental mapping ...
Abolfath Eshghi, Mehdi Kheirmand
doaj
Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics
FEBS Open Bio, EarlyView.Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini +2 more
wiley +1 more source
Effect of Pt on Zn-Free Cu-Al Catalysts for Methanol Steam Reforming to Produce Hydrogen [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2018 Steam reforming of methanol can be considered as an attractive reaction aiming at hydrogen production for PEM fuel cells. Although Cu/Al-contained catalysts are considerably evaluated in this reaction, further evaluation is essential to evaluate the ...
Mehran Jafari +3 more
doaj
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Methanol Steam Reforming Catalyzing over Cu/Zn/Fe Mixed Oxide Catalysts [PDF]
Iranian Journal of Chemical Engineering, 2017 Methanol steam reforming plays a pivotal role to produce hydrogen for fuel cell systems in a low temperature range. To accomplish higher methanol conversion and lower CO production, the reaction was catalyzed by CuZnFe mixed oxides.
A. Irankhah, M. Jafari, M. Mahmoudizadeh
doaj
Impact of Liquid-Liquid Hydrodynamic Focusing on the Efficiency of Heterogeneous Microreactors: Numerical Solution [PDF]
Iranian Journal of Chemical EngineeringMost of the reactions that occur in microreactors take place on the surface, so it is important to keep the reactants close to the reactive wall. One effective technique in this field is the single-phase hydrodynamic focusing.
Yaser Kazemi, Abdullah Irankhah
doaj +1 more source
Fluidic oscillator used as humidity sensor [PDF]
, 1967 Fluidic oscillator measures the humidity of the hydrogen stream leaving a hydrogen-oxygen fuel cell.
Prokopius, P. R.
core +1 more source
Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
Effect of Synthesis Method and Nickel-Copper Loading on Ni-Cu-Al Catalysts for Production of Hydrogen Via Ethanol Steam Reforming [PDF]
Iranian Journal of Chemical EngineeringIn the present work, the effect of synthesis method (simultaneous impregnation and coprecipitation) and copper to nickel active phases loading were investigated in Ni-Cu-Al catalysts. The water/ethanol molar ratio of 6 and gas hourly space velocity (GHSV)
Abdullah Irankhah +2 more
doaj +1 more source
Reaction heat used in static water removal from fuel cells [PDF]
, 1966 Reaction heat is used for removal of water formed at the hydrogen fuel electrode in a hydrogen-oxygen fuel cell. A portion of the heat inherent in the fuel cell current generation reaction is used to transfer excess water into water vapor and cause it to
Platner, J. L.
core +1 more source