platinum – TechConnect Briefs

Using the Membrane Biofilm Reactor to Recover Platinum Group Metals from Wastewater

Lusk B., Zhou C., Rittmann B., Tomaswick A., Precient Technologies, US

Conventional physical and chemical processes for recovery of platinum group metals (PGM) are costly and introduce contamination into the environment. Alternatively, microorganisms can biologically recover soluble PGMs as metallic nanoparticles: e.g., convert Pd(II) to Pd(0) [...]

Synthesis of Carbon Supported Nano-Structured Ptni Electro-Catalysts for Fuel Cell

Vu T.H.P., Le M.L.P., Le T.N.H., Le V.T., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Tran V.M., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Le M.L.P., Le T.N.H., Le V.T., Le M.L.P., Le T.N.H., Le V.T., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Vietnam National University - Ho Chi Minh City, VN

Platinum is the most effective catalyst for electrode reactions in fuel cells. However, challenges for this catalyst are its scarcity and high cost, as well as the poisoning by the intermediates of the fuel oxidation, [...]

Synthesis of Carbon Supported Nano-Structured Ptni Electro-Catalysts for Fuel Cell

Vu T.H.P., Le M.L.P., Le T.N.H., Le V.T., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Tran V.M., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Le M.L.P., Le T.N.H., Le V.T., Le M.L.P., Le T.N.H., Le V.T., Nguyen B.T.T., Nguyen T.G.H., Nguyen T.P.T., Vietnam National University - Ho Chi Minh City, VN

Platinum is the most effective catalyst for electrode reactions in fuel cells. However, challenges for this catalyst are its scarcity and high cost, as well as the poisoning by the intermediates of the fuel oxidation, [...]

Controlling Oxidation Reaction on Platinum by Spin Manipulation

Sison Escaño M.C., Nguyen T.Q., Nakanishi H., Kasai H., Osaka University, JP

Oxidation of metal surface is of outstanding practical importance in microelectronics, energy conversion systems and environmental devices. As an oxidation catalyst, platinum (Pt) is widely used in chemical and automotive industries. Thus far, the dissociative [...]

Carbon-supported platinum and nickel nanoparticles for CO capture in hydrogen fuel cells

J. D. Durbin D., J. Fermin D., Plana D., J. D. Durbin D., J. Fermin D., Malardier-Jugroot C., Royal Military College of Canada, CA

Fuel cells are electrochemical cells that convert chemical energy into electrical energy with efficiencies up to 80%; they are a promising potential replacement for internal combustion engines in automobiles. However, carbon monoxide poisoning of the [...]

Carbon-supported platinum and nickel nanoparticles for CO capture in hydrogen fuel cells

J. D. Durbin D., J. Fermin D., Plana D., J. D. Durbin D., J. Fermin D., Malardier-Jugroot C., Royal Military College of Canada, CA

Fuel cells are electrochemical cells that convert chemical energy into electrical energy with efficiencies up to 80%; they are a promising potential replacement for internal combustion engines in automobiles. However, carbon monoxide poisoning of the [...]

Monte Carlo Studies of the Effect of Temperature, Si/Al, and Metal Loading on the Templated Synthesis of Pt Nanowires in MOR-type Zeolites

Huertas-Miranda J.A., Martínez-Iñesta M.M., University of Puerto Rico, US

Previous molecular simulation studies in our group using Metropolis Monte Carlo (MMC) technique suggested that lower Si to Al ratios (Si/Al) favored energetically the positioning of Ni atoms inside the one-dimensional main pore channels of [...]

Adsorption of Pb2+ using platinum and ruthenium on carbon nanotubes

Azpeitia J.A., Zepeda A., Torres L., Verde Y., Instituto Tecnologico de Cancun, MX

Recently, remove Pb2+ ions from drinking water has been focused due to its high toxicity to our health, such as nausea, convulsions, coma, renal failure, cancer and subtle effects on metabolism and intelligence. Different approaches [...]

Dispersed stabilized Pt nanoparticles synthesized from an organometallic precursor

Ramírez-Meneses E., Torres-Huerta A., Domínguez-Crespo M.A., Montiel-Palma V., Hernández-Tapia G., Cicata - IPN Unidad Altamira, MX

In electrocatalysis, carbon materials have been generally employed to support metallic nanoparticles for electrochemical applications. Many methods to prepare CNTs supported metal nanoparticles including electrochemical, microwave irradiation and wet chemical methods have been reported in [...]

Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage

Büchel R., Strobel R., Pratsinis S.E., Baiker A., ETH Zürich, CH

A novel two-nozzle flame spray pyrolysis (FSP) process is presented for one-step preparation of Pt/Ba/Al2O3 particles for NOx storage-reduction (NSR) catalysts. These storage catalysts are of particular interest for mobile engines operating under lean conditions [...]