Recent efforts to design chemoselective catalysts have focused on modifying the surface of metal nanoparticle materials having tunable properties. However, precise control over the surface properties of base-metal oxide catalysts remains a challenge. Here, we show that green modification of the surface ...
the limited conductivity and drastic volume change still hinder their practical applications. Herein, a metal oxyacid salts-confined pyrolysis strategy is proposed to construct hierarchical porous metal oxide@carbon (MO@C, MO = MoO
A method for forming a metal oxide layer by a nitric acid oxidation is disclosed. The method comprises steps of: a) providing a substrate, b) forming an ultra-thin silicon dioxide layer on the substrate, c) forming a metal layer on the silicon dioxide layer, d) oxidizing the metal layer...
obtainable with acopolymerof 4-vinylpyridine 1-oxide as catalyst. The reactions are carried out inacetonitrilewith equimolar amounts of acid chloride and sodium formate. In most cases the mixed anhydride is the major product (Table 9).128The reactions are thought to proceed according to equation(...
In the liquid extraction process, citric acid may be extracted from the fermentation broth using a highly selective, low-price, and nontoxic food-grade solvent (i.e., water-insoluble amines, namely trilaurylamine, n-octanol, C10 or C11 isoparaffin, tri-n-butyl phosphate, alkysulphoxides). ...
oxide materials that are easily synthesised and fabricated are the key concerns in the development route of these materials. The chemical reduction route is the most utilised method to synthesise complex nanostructures-based particles6,7,8. Cu-based oxide nanostructures belong to the oxide metal ...
Write a balanced equation for: (a) the reaction of magnesium metal with hydrochloric acid: (b) the reaction of magnesium oxide with hydrochloric acid. Write the balanced chemical equation for the reaction of magnesium with aqueous hydrochloric acid. What is the chemical balanced...
M. et al. Low temperature CO oxidation over highly active gold nanoparticles supported on reduced graphene oxide@Mg-BTC nanocomposite. Catal. Letters 153, 876–886 (2023). Article CAS Google Scholar Sepehrmansourie, H. Metal organic frameworks (MOFs): As multi-purpose catalysts. Iran. J. ...
The oxide bridge between positions 4 and 5 may be closed in sinomenine itself by bromination, giving 1-bromo-sinomeneine (258), which may be hydrolysed to the α-diketone (259), and this may be converted through the benzilic acid (260) into the ketone (261). Sinomenine itself may also...
For an acid with density=1.92, the latter equation yields a P2O5content of 75.9%. A calculation of molar P2O5/H2O ratios using this equation produces a value less than the known starting composition of acid prepared at the laboratory where one of the authors (H. Le Q. S-W.) formerly wo...