The further calcination at 600 °C under an N2 atmosphere is beneficial for improving the specific surface area and achieving an ideal SCR performance (TOF of 3.45 × 10−5 s−1 and ∼100% selectivity towards N2 at 270 °C).
The reaction profile shows that palladium (0.5 wt%) is an optimum loading to get maximum conversion of ethylbenzene (51.8 %) and nitrobenzene (47.3 %) to give 91.4 and 100%% selectivity of styrene and aniline, respectively.
Our results show that hydrogenation of C2H2 proceeds with 100% selectivity towards C2H4, both in the presence and the absence of C2H4.
After the further modification with TEA, interestingly, TPDB-BP-TEA offered a very high yield of 97% with 100% selectivity (entry 4).
In the presence of hydrogen (selective oxidation of CO), the catalysts are more active and show high (90 100%) selectivity to CO2.
15% Ag-OMS-2 showed the highest activity and 100% selectivity to 1-PEA at hydrogen pressure of 10 atm and 160 °C.
A similar reaction catalyzed by Fe-SBA-15 afforded the corresponding para-alkylated product with 66%% conversion and 100%% selectivity [7].
The conversions using molar ratio 2 1 (acid:alcohol) after 8 h showed good results (83, 87, and 91%, respectively) and 100% selectivity for all esters.
Dense membranes have 100% selectivity for H2 and O2, and acceptable flux at high temperature.
Metakaolinite activated with 4 M HNO3 gave 87 mol% conversion of benzyl chloride to diphenylmethane with 100% selectivity within 30 min of reaction time.
The key to 100% selectivity to C2H4 resides in non-competitive adsorption of C2H2 and C2H4 on the Au surface when both hydrocarbons are present in the feed.
