Anodic polarization of nickel was studied by potentiostatic technique in neutral media in presence of two macrocyclic ligands. Pit initiation was detected by measuring pitting potential, Ep and the charge transfer, Q during the anodic polarization. Initiation of pitting and Q were found to be dependent on the structure and concentrations of inhibitors. Under steady state conditions, the inhibit...

Rational design of selective CO2-to-fuels electrocatalysts requires direct knowledge of the electrode surface structure during turnover. Metallic Cu is the most versatile CO2-to-fuels catalyst, capable of generating a wide array of value-added products, including methane, ethylene, and ethanol. All of these products are postulated to form via a common surface-bound CO intermediate. Therefore, t...

We report argon adsorption/desorption isotherms of MCM-41 and SBA-15. The shape all hysteresis loops we have observed corresponds to type H1. data been analyzed quantitatively using the multiple equilibria description applying notion metastable thermodynamic equilibrium. It is remarkable important that for both mesoporous materials desorption process can be understood according this but with a ...

In this paper, we introduce non-interest profit/loss sharing (PLS) banks into a three-period overlapping generations model. Two types, (low- and high quality) investments are assumed and capital accumulation and level of output in the steady state is considered. Then, administrative rationing is introduced to the model. It is shown that the level of capital accumulation and output in equilibriu...

Grand canonical Monte Carlo (GCMC) simulations employing a rigid framework are performed to explore the adsorption behaviors of some aromatics in the purely siliceous MCM-22 zeolite, ITQ-1. Benzene, toluene, m-xylene and o-xylene are separately simulated at 315 K, investigating a series of pressure from 0.1 to 14 kPa. The potential adsorbed sites of the studied molecules are determined from the...

Active carbon is generally considered to consist of rigid clusters of microcrystallites, with each microcrystallite made up of a stack of graphene planes (2D, the sp-type of hybridisation of carbon valence orbitals). Free spaces between the planes create a pore network (i.e. pores of different sizes). Strongly activated carbons have a wider distribution of the adsorption space of the micropores...

the present article deals with the inter specific competition and intra-specific competition among predator populations of a prey-dependent three component food chain model consisting of two competitive predator sharing one prey species as their food. the behaviour of the system near the biologically feasible equilibria is thoroughly analyzed. boundedness and dissipativeness of the system are e...