Catalytic oxidation of cellulose to formic acid in V(V)-Fe(III)-H2SO4 aqueous solution with O2

Preparation, Characterization and Ion-Exchange Properties of an Organic-Inorganic Composite Cation Exchanger: Polyaniline-Bi(III) Iodovanadate and Catalytic Properties of Bi(III) Iodovanadate Inorganic Ion Exchanger

“…The hetropolyacid (iodovanadate) unit of inorganic ion exchanger like Bi(III) iodovanadate is made up of oxygen and hydrogen with some metals and nonmetal (iodine and vanadium). Bi(III) iodovanadate can act as a oxidizing agent, to the polymerization of aniline monomer into green colored polyaniline gels without adding oxidizing agent [10,[21][22][23][24].…”

“…Polymer based composite cation exchanger have extended enormous applications such as ion selective electrode, photocatalyst, antimicrobial, sensors, environmental remediation, etc. Several hetropolyacids are used as a catalyst in organic synthesis and they are extensively used for reagents in qualitative and quantitative analysis [10][11][12]. This paper deals with preparation, characterization, ion exchange studies, chemical stability and oxidizing ability of Bi(III) iodovanadate and newly fabricated polyaniline-Bi(III) iodovanadate composite cation exchanger.…”

Combining autoclave and LCWM reactor studies to shed light on the kinetics of glucose oxidation catalyzed by doped molybdenum-based heteropoly acids

“…S18 †). Qualitatively the reoxidation of all three catalysts started to be observable at 100 C. For a more quantitative comparison the initial reaction rates were deduced for all temperatures and activation energies derived (see eqn (4) and (5) and values in Table 3). Independent on the metal doping, the reoxidation reactions showed order of magnitude for the reoxidation rate.…”

“…3,4 Oxygen is usually activated by metal catalysts. Hereby, mostly vanadiumcontaining catalysts like polyoxometalates (POMs), [5][6][7] or water-soluble vanadium salts are used. 8,9 In particular POMs are highly promising catalysts for these kinds of reaction due to their strong Brønsted acidity combined with a high redox activity and high stability in aqueous solution.…”

Effective Degradation of Cellulose by Microwave Irradiation in Alkaline Solution

“…Moreover, in previous studies, the oxidizing materials that were used for cellulose degradation, such as vanadium (V(V))-contained catalyst, a high-cost material, usually undergo at least two reactions(Lu et al 2018). Another oxidizing catalyst, Mo-V-P heteropoly acids (HPA), have a long catalytic synthesis(Gromov et al 2016) carbon electrodes modi ed by gold nanoparticles (Sugano et al 2016) are also expensive, TEMPO-mediated oxidation system requires preparation steps (Isogai et al 2018) The oxidation of cellulose with the catalytic aqueous mixture of, H 5 PV 2 Mo 10 O 40 + H 2 SO 4 with molecular oxygen (Lu et al 2016), is a very slow process compared to our method.…”