Add to ORKG837-840Vanadium substituted phosphomolybdic acids could hydroxylate benzene with nearly 100% selectivity at appreciable conversion levels in the presence of oxidising agents like H2O2 and CH3COOOH. There appears to be a correlation, for the liquid phase, between phenol yield and its rate of formation with vanadium content in the phosphomolybdic acid. Unfortunately, these materials do not show the same activity in gas-phase with N2O as oxidant. Therefore, it has been demonstrated that the high acidity of these solids is not involved in the reaction pathway
A series of transition metal substituted polyoxometalates with a Keggin structure were prepared and ...
The heteropolyacid H6PMo9V3O40 (HPA) was encapsulated in MCM-41 and VPI-5. When HPA/MCM-41 is used i...
Using selectively site-substituted vanadium (V) Keggin and Dawson heteropolytungstates (HPA), the ca...
The direct synthesis of phenol by hydroxylation of benzene with hydrogen peroxide over a vanadium su...
With aqueous hydroxylation as oxidant, Benzene was directly hydroxylated to phenol with phenol yield...
The catalytic behavior of H(a+n)PMo(12-n)V(n)O(40)(abbreviated to HPA-n hereafter) + H(2)O(2) system...
Single-stage selective hydroxylation of aromatic hydrocarbons is one of the most interesting scienti...
Direct oxidation of benzene to phenol in liquid phase by H2O2 over vanadium catalyst supported on hi...
Reducing regents, such as ascorbic acid, are needed for vanadium-containing catalysts to catalyze th...
Phenol is one of the most important intermediate for petrochemical, agrochemical, and plastics indus...
The activation of oxygen is a key step for the selective oxidation of benzene to phenol and the reas...
Preparation of dispersed transition metal oxides catalyst with low oxidation state still remains a c...
Direct hydroxylation of benzene to phenol using molecular oxygen is a green route with high atom eco...
Vanadium is a key element in the formulation of catalysts for the production of anhydrides by select...
Direct oxidation of benzene to phenol with dioxygen is an attractive and challenging subject. V(4+) ...
A series of transition metal substituted polyoxometalates with a Keggin structure were prepared and ...
The heteropolyacid H6PMo9V3O40 (HPA) was encapsulated in MCM-41 and VPI-5. When HPA/MCM-41 is used i...
Using selectively site-substituted vanadium (V) Keggin and Dawson heteropolytungstates (HPA), the ca...
The direct synthesis of phenol by hydroxylation of benzene with hydrogen peroxide over a vanadium su...
With aqueous hydroxylation as oxidant, Benzene was directly hydroxylated to phenol with phenol yield...
The catalytic behavior of H(a+n)PMo(12-n)V(n)O(40)(abbreviated to HPA-n hereafter) + H(2)O(2) system...
Single-stage selective hydroxylation of aromatic hydrocarbons is one of the most interesting scienti...
Direct oxidation of benzene to phenol in liquid phase by H2O2 over vanadium catalyst supported on hi...
Reducing regents, such as ascorbic acid, are needed for vanadium-containing catalysts to catalyze th...
Phenol is one of the most important intermediate for petrochemical, agrochemical, and plastics indus...
The activation of oxygen is a key step for the selective oxidation of benzene to phenol and the reas...
Preparation of dispersed transition metal oxides catalyst with low oxidation state still remains a c...
Direct hydroxylation of benzene to phenol using molecular oxygen is a green route with high atom eco...
Vanadium is a key element in the formulation of catalysts for the production of anhydrides by select...
Direct oxidation of benzene to phenol with dioxygen is an attractive and challenging subject. V(4+) ...
A series of transition metal substituted polyoxometalates with a Keggin structure were prepared and ...
The heteropolyacid H6PMo9V3O40 (HPA) was encapsulated in MCM-41 and VPI-5. When HPA/MCM-41 is used i...
Using selectively site-substituted vanadium (V) Keggin and Dawson heteropolytungstates (HPA), the ca...