The present invention disclosed a novel squaraine linked metalloporphyrin based 2D-sheet polymer catalyst of formula (I), process for preparation thereof and use of said catalyst for efficient photo- and electro-catalytic splitting of water.

The present invention provides compositions and methods for producing magnetic bionanocatalysts (BNCs) comprising metabolically self-sufficient systems of enzymes that include P450 monooxygenases or other metabolic enzymes and cofactor regeneration enzymes.

Provided are a Nb-doped nickel oxide-zirconia composite catalyst, and a method for preparing the same. An excellent methane modification reaction is performed by doping a nickel oxide site with niobium, so that alcohol may be prepared at low costs.

A versatile, highly scalable single step method is provided for depositing a metallic Pd film from low temperature combustion of an aqueous solution. By using only palladium nitrate and glycine as precursors, water as a solvent, mirror-bright dense Pd films with high crystallinity and good adhesion can be deposited at 250 C. on different substrates without subsequent annealing. The technique can be used to form a reusable catalytic flask as illustrated by the Suzuki-Miyaura cross-coupling reaction, where the Pd film uniformly covers the inner walls of the flask and eliminates the catalyst separation step.

The present invention discloses a catalytic phase change dielectric sphere for methanol combustion and a preparation method therefor. The catalytic phase change dielectric sphere for methanol combustion is mainly prepared from a high-temperature phase change material, an active material, a carrier material, a catalyst, a nano-semiconductor material, a nano-transition metal and an adhesive. A catalytic phase change dielectric solid sphere is prepared with a mixed pressing and sintering process, the methanol energy conversion rate reaches 87.5%, the furnace temperature of methanol combustion reaches 900 C. or higher, and waste heat recovery is realized; or, a catalytic phase change dielectric microporous hollow sphere is prepared through electrostatic adsorption and in-site redox reaction, the methanol energy conversion rate reaches 99% or higher, the furnace temperature of methanol combustion reaches 1000 C. or higher, and waste heat recovery is realized.

Catalysts that are resistant to high-temperature sintering and methods for preparing such catalysts that are resistant to sintering at high temperatures are provided. The catalyst may be prepared by contacting a solution comprising an ionic species with one or more charged surface regions of a catalyst support. A surface of the catalyst support further includes one or more catalyst particles disposed adjacent to the one or more charged surface regions. The ionic species has a first charge opposite to a second charge of the one or more charged surface regions. Next, the ionic species is associated with the one or more charged surface regions to form a layer on the one or more select surface regions. The layer is calcined to generate a coating comprising metal oxide on the one or more select surface regions, where the coating is formed adjacent to the one or more catalyst particles.

Disclosed are iron nanoparticles, in which at least 70% of the iron atoms they contain are present in an Fe2,2C crystalline structure. In particular, these nanoparticles can be obtained via the carburization of zero-valent iron nanoparticles, by contacting the iron nanoparticles with a gas mixture of dihydrogen and carbon monoxide. The iron carbide nanoparticles are particularly suitable to be used for hyperthermia and for catalyzing Sabatier and Fischer-Tropsch reactions.

The present invention discloses a water oxidation catalyst having composition Zn.sub.xCo.sub.(3-x)O.sub.4 for splitting water into oxygen and hydrogen gas and a process for the preparation thereof.

The electrocatalyst for hydrogen evolution reaction includes nanosheets of molybdenum disulfide (MoS.sub.2) deposited on a carbon fiber substrate. The catalyst is formed in stepwise fashion by chemical vapor deposition of nanosheets of MoO.sub.3 onto the substrate, then reducing the MoO.sub.3 to nanosheets of MoO.sub.2 using sublimed sulfur, then by reaction of sulfur vapor with the MoO.sub.2 to form nanosheets of MoS.sub.2 on the carbon fiber substrate. The catalyst is multifaceted, having a large density of edges providing catalytically active sites for the hydrogen evolution reaction. The activity of the catalyst is enhanced by coating the catalyst with spherical fullerenes (nC.sub.60).

The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum or platinum alloy are supported on a carbon powder carrier. The catalyst of the present invention is a catalyst for solid polymer fuel cells in which the bond energy (Ec) at a gravity center position is 2.90 eV or more and 3.85 eV or less as calculated from a spectrum area of a Pt5d orbit-derived spectrum which is obtained by measuring a valence band spectrum in a range of 0 eV or more and 20 eV or less in the result of subjecting the catalyst particles to X-ray photoelectron spectroscopic analysis.