SO 4 2 /Fe 2 O 3 catalysts present considerable activity for dichloromethane combustion, which is dependent on both super-strong acidity and surface oxygen. Turnover frequency (based on the mole number of transformed dichloromethane per second per mole super-strong acid) obtained on SO 4 2 /...
(1) H2SO4. As a strong oxidizing acid, changes in the dosage of H2SO4 affect the number of oxygen-containing functional groups of carbon materials, while also increasing the trace amount of impurities, such as sulfur [34]. (2) HNO3. HNO3 is the most commonly used liquid-phase oxidant,...
Encouraged by the unique structural investigation results, we further investigated the potential application for acidic OER. The electrochemical OER performance of COF-205-Ru electrocatalyst was assessed by a standard three-electrode system under 0.5 M H2SO4electrolyte, with commercial RuO2and IrO2f...
Whatisanoxidationnumber?•Itisa“hypothetical”number.–showschargeanatomorionwouldhaveifseparatedfromitscmpd.•Doesn’trepresentanythingreal.–Usefulfortrackinge-inchem.rxns.•6rulesforassigningoxidationnumbers(O.N.’s)AssigningOxidationNumbers •1.TheO.N.ofalluncombinedelementsiszero.–Example:TheO.N....
Nature Communications volume 10, Article number: 5362 (2019) Cite this article 6099 Accesses 43 Citations 1 Altmetric Metrics details Abstract As a versatile intermediate, difluorocarbene is an electron-deficient transient species, meaning that its oxidation would be challenging. Herein we show that ...
Oxidation Reduction
Various techniques and reagents for the abiotic asymmetric oxidation of sulfur using ‘conventional’ catalysis have therefore been developed.2–8 However, there are a number of contemporary considerations that make biological routes to chiral sulfoxides attractive. First, biological oxidation processes ...
The process and structure described herein can be used to manufacture a number of different structures which comprise a transistor, for example a flash memory device. FIG. 7, for example, is a simplified block diagram of a memory device such as a flash memory having a memory array with trans...
However, due to the limited storage and high price of noble metals, it is not suitable for large-scale industrial production. Sometimes transition metals oxidation/complex oxide catalysts are used to dope or replace noble metals catalysts to reduce the number of noble metals. (2) Rare earth met...
The present invention is directed to an olefin oxide synthesis process, such as for the production of propylene oxide, which has a number of advantages over the prior art. BRIEF SUMMARY OF THE INVENTION The present invention is directed to a process for the epoxidation of an olefin to the co...