Agency for Science, Technology and Research

Corning Incorporated

Ziyi Zhong

William Peter Addiego

Jianyi Lin

Siew Pheng Teh

Jaclyn Seok Kuan Teo

Ji Zhong Luo

Hui Teng Casandra Chai

Yuanting Karen Tang

Ming Lin

Siew P Teh

Jaclyn S K Teo

A method for the synthesis of carbon nanotubes from natural rubber, including providing a first material, the first material may include natural rubber or derivatives thereof, thermally decomposing the first material at a first temperature into an intermediate material, contacting the intermediate material with a catalyst, treating the intermediate material in contact with the catalyst at a second temperature, for forming carbon nanotubes. Adjusting an average characteristic of resulting nanotubes, including carrying out the synthesis method as a reference method and for decreasing the average diameter of the nanotube: decreasing the second temperature and/or decreasing the reaction time and/or increasing the concentration of Hin the forming gas in relation to the reference method. Or, for increasing the average diameter of the nanotube: increasing the second temperature and/or increasing the reaction time and/or decreasing the concentration of Hin the forming gas in relation to the reference method.

Processes for production of carbon nanotubes from natural rubber

Methods of making supported monolithic gold (Au) catalysts that can be used for generating a hydrogen-rich gas from gas mixtures containing carbon monoxide, hydrogen and water via a water gas shift reaction, and for the removal of carbon monoxide from air at a low reaction temperature via its oxidation reaction are described. Methods of making highly dispersed gold catalysts on washcoated monoliths and the stabilization of monolithic catalyst supports by the addition of a third metal oxide, such as zirconia (ZrO), lanthanum oxide (LaO), or manganese oxide (MnO). The catalyst supports and/or washcoats may include a variety of transition metal oxides such as alpha iron oxide (&#x3b1;-FeO), cerium oxide (CeO), ZrO, gamma alumina (&#x3b3;-AlO), or their combinations.

Gold catalysts for co oxidation and water gas shift reactions

The present invention relates to a novel method for preparing a new type of catalyst for the oxidation of CO in a reactant gas or air. The method provides the preparation of a catalyst having nano-sized metal particles and a capping agent deposited on a solid support. The size and distribution of the metal particles can be easily controlled by adjusting reaction condition and the capping agent used. The catalyst prepared has high activity at low temperature toward selective oxidation of CO and is stable over an extended period of time. The catalyst can be used in air filter devices, hydrogen purification processes, automotive emission control devices (decomposition of NOx, x is the integer 1 or 2), F-T synthesis, preparation of fuel-cell electrode, photocatalysis and sensors.

Highly dispersed metal catalysts

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Ziyi Zhong