University of Missouri

Peking University

Petrochina Company Limited

Yongge Wei

Yuan Wang

Jin Zhang

Xiaodong Wang

Pingmei Wang

Bin Ding

Xiangfei Geng

Baoliang Peng

Lipeng He

Junling Zhang

Zhonghua Peng

Jianhui Lou

Jiangwei Zhang

Zheyu Wei

Minghui Liang

Linlin Gui

Bubin Xu

The present disclosure provides a single-side modified &#x3b2;-Anderson-type heteropolymolybdate organic derivative having an anionic moiety with a general formula represented by: &#x3b2;-{[RC(CHO)]M(OH)MoO}; &#x3b2; represents a non-planar folded structure; R=substituted or unsubstituted phenyl, CHX (n is an integer from 0 to 22; X&#x2550;H, OH, NH(CH)SOH, NHCHCOOH, NH, or NO); M=Cr. The single-side modified &#x3b2;-Anderson-type heteropolymolybdate organic derivative can be prepared under hydrothermal conditions.

Single-side modified &#x3b2;-Anderson-type heteropolymolybdate organic derivatives

A composite material composed of nanoparticles of transition metal(s) and magnetic ferric oxide, a method of preparing the same, and uses of the same are provided. The composite material is substantially composed of nanoparticles of transition metal(s) or alloy thereof and nanoparticles of magnetic ferric oxide, the size of nanoparticles of transition metal(s) or alloy thereof is in the range of 0.7 to 5 nm, the size of nanoparticles of magnetic ferric oxide is in the range of 5 to 50 nm, and the amount of transition metal(s) or alloy thereof is in the range of 0.1 to 30 wt %, based on the total weight of composite material, the magnetic ferric oxide is gamma-Fe2O3, Fe3O4, complex obtained from gamma-Fe2O3 by partial reduction, or complex obtained from Fe3O4 by partial reduction. The composite material has a high reactivity and an extreme selectivity for industrial reaction of hydrogenating halogeno-nitro-aromaticics to obtain halogeno-arylamine, and has important industrial applicability because the problem such as hydrogenolysis-dehalogenation during preparing halogeno arylamine by hydrogenating halogeno-nitro-aromatics is fully resolved by using the composite materials.

Composite material composed of nanoparticles of transition metal and magnetic ferric oxide, a methode of preparing the same, and uses of the same

The present invention is generally directed to a process for preparing polyoxometalates having amine-derived substituents attached thereto. In a first embodiment, the process comprises contacting a polyoxometalate and an amine in the presence of a diimide. The present invention is further directed to novel functionalized polyoxometalates prepared by the present process.

Process for preparing organically-substituted polyoxometalates

Growing community of inventors

Beijing, China

Yongge Wei