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(...
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 ...
At pH 3 there was evidence that the adsorbed species make two-point contact with the oxide surface via an interaction of the CHCH group with surface OH2+ groups. A recent study on the zeta potential effects of adding sodium oleate to three samples of ilmenite has been reported by Mehdilo ...
carboxylate groups were used to stabilize the metal centers in the LDH. Electrochemical deposition provided both coordinated and uncoordinated carboxylate ligands through redox reactions occurring near the electrode. NiFe-LDH with trimesic acid ligands was prepared through direct electrochemical deposition on ...
Heublein G., Hortschansky P., Klein S.: Adsorption of flexible macromolecules at oxide interfaces, Acta polym. 1988; 39: 117–21. Article CAS Google Scholar Finlayson M.F., Shah B.A.: The influence of surface acidity and basicity on adhesion of poly(ethylene-co-acrylic acid) to alumin...
Copper oxide nanoparticles encapsulated in HKUST-1 metal-organic framework for electrocatalytic oxidation of citric acid 来自 掌桥科研 喜欢 0 阅读量: 59 作者:TW Murinzi,AC Tella,C Vitalis,M Gift 摘要: Metal-organic frameworks have poor electrochemical properties. However their electron transfer ...
It is believed that the concentration of adsorbate on the adsorbent surface rises as a function of adsorbate concentration because the FIM expression is an exponential equation. The FIM can be presented by the linear Eq. (5)6: $$\mathrm{ln}\left({Q}_{e}\right)=\mathrm{ln}\left({K}_...
The above reaction is rapid and shifts almost fully to the product side. (2) oxidation of nitric oxide to form nitrogen dioxide: 2NO + O2 → 2NO2 The above reaction also is rapid and goes almost to completion below 150°C. (3) dissolution of nitrogen dioxide in water: ...
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...
Another oxide of commercial and toxicological interest is selenium oxychloride (SeOCl2). The reduced form of selenium (selenide) may be formed from water-soluble selenium compounds under acid conditions or in biological systems. The formal oxidation state is –2, and of biological interest are hydro...