It is clear that the initial current degradation is rapid for all three electro-catalysts. It is also observed that Pd/CNF and Pd-Sn/CNF electro-catalysts take a much longer time to reach a steady-state, indicating that the electro-catalysts may experience some diffusion layer build-up, ...
The ozonation combined with UV-radiation (O3/UV) is an efficient catalytic system for the degradation of refractory pollutants in wastewater. The process is initiated by the photolysis of ozone and followed by the production of OH• radicals by the reaction of O• with water [19]. The syn...
structure is controlled by the co-adsorbate cations (i.e., Li+, Na+, K+, Rb+, and Cs+) on Pt surfaces, and the HOR activity can be enhanced using electrolytes with Li+46. To count both influences from HBE and interfacial water, Yan and co-workers proposed the apparent HBE (HBEapp...
Two different procedures were used with respect to the state of precursor compounds. (i) liquid precursors, viz. NH3, pyridine and H3PO4 were heated up to boiling temperature and fed into the oven, where CB was loaded by bubbling N2 used as carrier gas [17]; (ii) solid precursors viz...
Anaerobic oxidation of methane (AOM) reduces methane emissions from marine ecosystems but we know little about AOM in rivers, whose role in the global carbon cycle is increasingly recognized. We measured AOM potentials driven by different electron acceptors, including nitrite, nitrate, sulfate, and ...
Studies have found that 30% to 40% of a gait cycle is in a state of fluid lubrication during normal activity of joints, and most of the rest time is in a state of boundary lubrication. HA can play the role of fluid lubrication at the natural cartilage interface by changing the ...
Oxidation state/s exhibited by Ce is / are View Solution The main reason for larger number of oxidation state exhibited by the actinides than the corresponding lanthanides, is View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, ...
(5 h 650° C.). Hence FIG. 11 illustrates the CO light-off curves after initial oven aging, sulfation and de-sulfation. While the impact of sulphur is clear and unambiguous, it is also apparent that after hydrothermal aging almost full activity is recovered. This effect we ascribe to the...
2003). Herein, the sulphur species were redistributed on the surface of the catalyst so that the active species of PdO were partly regenerated after the regeneration. Moreover, the poisoned catalyst could still not be regenerated completely even the temperature was increased to as high as 923 K...
In addition, the increase of Si content makes the concentration of iron ions in FeO close to the substrate side lower, which causes the increase of point defect concentration to promote the dislocation climbing of FeO, and makes the steady-state plastic deformation ability of FeO close to the ...