Abstract: Some aryl sulfonic acid-functionalized solids were prepared by a new method. The catalytic activities of esterification by the prepared aryl sulfonic acid-functionalized solids were also tested.

Abstract: Some aryl sulfonic acid-functionalized solids were prepared by a new method. The catalytic activities of esterification by the prepared aryl sulfonic acid-functionalized solids were also tested.

Abstract: A facile synthesis route for preparing SBA-15 silica of platelet shape and very short mesochannels was developed by introducing a small amount of Zr(IV) ions in the first synthesis solution. The synthesis route can be easily extended to prepare SBA-15 materials with various organic functional groups in one pot.

Abstract: A facile synthesis route for preparing SBA-15 silica of platelet shape and very short mesochannels was developed by introducing a small amount of Zr(IV) ions in the first synthesis solution. The synthesis route can be easily extended to prepare SBA-15 materials with various organic functional groups in one pot.

Abstract: A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m2/g after calcination at 980° C. in air for 4 hours. In the method, an aqueous solution containing Ce3+, Mg2+, organic acid and organic polymer is prepared and then evaporated to obtain a gel. The gel is calcined to obtain a mixed oxide, and then MgO is leached from the mixed oxide with a solvent to obtain raw ceria. The raw ceria is then washed, filtered and dried to obtain a ceria product.

Abstract: A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m2/g after calcination at 980° C. in air for 4 hours. In the method, an aqueous solution containing Ce3+, Mg2+, organic acid and organic polymer is prepared and then evaporated to obtain a gel. The gel is calcined to obtain a mixed oxide, and then MgO is leached from the mixed oxide with a solvent to obtain raw ceria. The raw ceria is then washed, filtered and dried to obtain a ceria product.

Abstract: A solid electrolyte based on magnesia-doped ceria is described, having a composition represented by general formula Ce1-x-yMxMgyO2-d, wherein M stands for Y, Ca or Sr, and the ranges of x and y are defined by the inequalities of 0.01?x<0.3, 0.01?y?0.6 and 0.02?x+y?0.7. The composition can be formed into a sintered body suitably used as an oxygen-ion conducting solid electrolyte of an intermediate-temperature solid oxide fuel cell or other electrochemical devices. The solid electrolyte with suitable values of x and y have low cost, high stability and acceptable ionic conductivity as compared with similarly prepared Gd-doped ceria electrolyte.

Abstract: A method of oxidizing trimethylphenol (TMP) to trimethylbenzoquinone (TMBQ) by various molecular sieves containing various transition metals. In this method, TMP, a molecular sieve containing a transition metal in its framework, an oxidant and a solvent are mixed together to form a reaction system. The reaction system reacting at a temperature of about room temperature to 150° C. to obtain TMBQ, and the concentration of TMP is about 5-60% wt.

Abstract: The present invention provides methods for preparing hydrothermally stable MCM-41 mesoporous molecular sieves incorporating aluminum and other transition metals. The materials prepared by these methods possess a very high surface area and narrow uniform pore distribution in the mesopore region, and are highly thermally stable whereby the ions are not leached out after high temperature annealing.

Abstract: A method of oxidizing trimethylphenol (TMP) to trimethylbenzoquinone (TMBQ) by various molecular sieves containing various transition metals. In this method, TMP, a molecular sieve containing a transition metal in its framework, an oxidant and a solvent are mixed together to form a reaction system. The reaction system reacting at a temperature of about room temperature to 150° C. to obtain TMBQ, and the concentration of TMP is about 5-60% wt.

Abstract: The invention relates to a novel one-step process for preparation of phenol by oxidation of benzene with hydrogen peroxide catalyzed by molecular sieves doped with copper ions. With proper solvent, a phenol yield around 15-35%, selectivity close to 100% and phenol/Cu TON around 100 could be achieved. These results show that the inventive process is of great economical value for further development in large scale production of phenol.

Abstract: The present invention provides zirconium phosphite sulfophenylphosphonates having the following formulaZr(HPO.sub.3).sub.m (HPO.sub.4).sub.n (PO.sub.3 C.sub.6 H.sub.5).sub.y (PO.sub.3 C.sub.6 H.sub.4 SO.sub.3 H).sub.zwherein m+n=x; x+y+z=2; 0.4.ltoreq.x.ltoreq.1.7; 0.ltoreq.y.ltoreq.1.6; and 0.01.ltoreq.z.ltoreq.0.8. The present invention also discloses a method of preparing these zirconium phosphite sulfophenylphosphonates and their use as a catalyst.