Agency for Science, Technology and Research

National University of Singapore

Liang Hong

Zhaolin Liu

Wei Ling Wang

Siok Wei Tay

Zetao Xia

Bing Guo

William Sai Yau Wong

Teng Sheng Peh

Xiong Yin

Xinwei Chen

Zhao Lin Liu

Yuanhuan Zheng

Xinhui Zhang

Yi'en Zhou

Huixin Jiang

This invention relates to a hybrid composite polymer matrix, assembled by integrating two polymer networks, as an anti-scratch coating for automobiles. The two types of particulate silane cross-liners are utilized to construct two respective hybrid polymer networks with a unique chain-from-particle structure. At least one hybrid network is a covalently bound network that is interlocked with at least one physically bound hybrid network.

Anti-scratch coating

There is a formulation and a method for inhibiting carbon-based deposits on metal substrate. The method comprises the use of a formulation comprising at least one oxidizing agent and at least one etchant capable of forming free metal ions from the metal substrate, at least one sequestering agent having a ligand capable of forming a complex with the free metal ions and at least one chelating agent having a ligand capable of complexing with at least one surface metal atom.

Formulation and method for inhibiting carbon-based deposits

A porous sintered clay mineral matrix that contains aluminum and is doped with 0.1-20 mol %, based on the amount of the aluminum, one or more transition metals, one or more post-transition metals, one or more rare earth metals, or a combination thereof. An example is a kaolinite matrix. The matrix can be made from a calcined clay mineral powder that contains aluminum and is doped with at least one of these metals. Also disclosed are methods of preparing the above-described matrix and powder.

Sintered clay mineral matrix doped with rare earth metals, transition metals, or post-transition metals

The present invention relates to a perovskite-type strontium titanate, wherein the strontium titanate is Y- and Ni-doped and has the general formula (Sr,Y)(Ti,Ni)O. A method of preparing the perovskite-type strontium titanate and its use are also provided.

Perovskite-type strontium titanate

A porous ceramic matrix contains a plurality of ceramic particles adhered to each other, and a plurality of channels defined by surfaces of neighboring ceramic particles, the channels each having an average diameter of 0.5-2.5 &#x3bc;m. Preferred ceramics also have a porosity of 25.0-40.0%, a Darcy's Permeability of 1.57-34.8&#xd7;10m, and a mechanical strength of 25-64 MPa. Also disclosed is a method of preparing such a porous ceramic matrix, comprising providing a pellet containing ceramic particles that are coated with a monomer, a catalyst, and a binder; polymerizing the monomer in the solid state by heating, then carbonizing and sintering the pellet.

Porous ceramic matrix

A metal oxide-supported nickel catalyst includes a matrix containing a metal oxide and catalytic sites distributed throughout the matrix and having an intricate interface with the matrix, in which the catalytic sites are selected from the group consisting of nano-nickel(0) domains and nano-nickel(0)-A(0) alloy domains. Also disclosed are a method for preparing this catalyst and a method for using it to produce carbon monoxide and hydrogen by partial oxidation of a C-Chydrocarbon.

Implantation of Ni nano domains in refractory metal oxide support by means of sol-gel encapsulation&#x2014;an effective solution to coke formation in the partial oxidation of natural gas

The present invention relates to a method for forming a catalyst comprising catalytic nanoparticles and a catalyst support, wherein the catalytic nanoparticles are embedded in the catalyst support, comprising forming the catalytic nanoparticles on carbon particle, dispersing the carbon particle in a solution comprising precursors of the catalyst support to form a suspension, heating the suspension to form a gel, subjecting the gel to incineration to form a powder, and sintering the powder to form the catalyst.

Method for forming a catalyst comprising catalytic nanoparticles and a catalyst support

A proton-exchange composite includes a polymer matrix formed from a proton-exchange polymer and ionomer particles distributed therein. The polymer has side chains with ionic groups. The particles have an average particle size of less than 20 nm and include an oligomeric ionomer that interacts with the polymer and attracts the ionic groups on its side chains. The composite may be formed by a method in which an initiator is bonded to silica particulates. The initiator is used to initiate polymerization of a precursor monomer to form a salt form of the oligomeric ionomer bonded to the silica particulates, which is then reacted with an acid to produce the oligomeric ionomer, thus forming the ionomer particles. The ionomer particles are dispersed in a solution containing a solvent and the polymer dissolved therein. The solvent is removed. The residue is cured to form the composite.

Proton-exchange composite containing nanoparticles having outer oligomeric ionomer, and methods of forming

A sol solution containing poly(titanic acid) and a planar heterocyclic ligand is provided. Titanium dioxide (TiO) particles are formed by aging the sol solution at a temperature below about 140&#xb0; C. The particles have multi-coordinated Ti-complexes comprising the heterocyclic ligand and can be substantially in the anatase phase. The heterocyclic ligands can be triazole, tetrazole, or thiadiazole. The sol solution may be prepared by aging a precursor solution. The precursor solution may contain the heterocyclic ligands and a precursor for poly(titanic acid). The precursor may be titanium alkoxide or titanium chloride. The sol solution may also contain at least one of an organic acid, a base, and a surfactant. The aged sol solution may form a colloidal dispersion of the TiOparticles. A photo-catalytic and transparent film may be formed from the TiOparticles by depositing a layer of the colloidal dispersion on a support.

Growing community of inventors

Singapore, Singapore

Liang Hong