Potassium promotion of iron on high surface area carbon catalysts increases the selectivity for direct acetonitrile synthesis from CO, H2, and NH3 at temperatures of 673 723 K and atmospheric pressure.
Due to their ubiquity in soils and sediments and high specific surface area, iron or titanium hydroxides (Fe or Ti oxides) around silicate minerals may play a role in the migration of actinides in groundwater.
Particles were first characterized for size, size distribution, surface area, iron concentration, phase and aggregation in cell culture media.
Increasing amount of copper and iron species decreased BET surface area and the size of both the small pores and large pores, while promoted the aggregation of bi-metal particles inside the large pores.
In order to further increase the TN removal efficiency, pretreatment of the waste iron shavings to increase the surface area may be a solution, which would increase the contact between waste iron shavings and microorganisms and therefore increase the electron transfer rate.
To change the tannins perceptibly in an hour, you would have to hit the wine with pure oxygen, high pressure and temperature, and powdered iron with a huge catalytic surface area".
The obtained results confirm that 20 70 nm of spherical iron particles were formed with surface area of 36.62m2/g.
[1, 3, 4] In instances where direct cell-mineral contact is necessary for bacterial iron reduction, [5 7] mineral surface area controls not only the availability of reactive sites but also of cell attachment sites.
Compared with raw bentonite, the content of iron, interlamellar distance and external surface area of H-Fe-P-B increased remarkably.
