The highly reduced graphene oxide using solvated electrons as reductive agents shows low defects and well dispersion that are vital as the support of Pt nanoparticles in direct methanol electro-oxidation. The electrochemical experiments demonstrate that the Pt/RGO composites not only greatly enhance the catalytic activity but also dramatically improve the durability of the catalyst.

The structures of PtNix nanoalloy particles were modified through thermal annealing in different atmospheres. The evolution of surface structures was uncovered by advanced transmission electron microscopy, and the structure-function correlation in methanol electro-oxidation was probed. It provided new insights into the design and synthesis of highly efficient electrocatalysts.

Highy crystalline NiO nanoparticles are uniformly grown on the walls of carbon nanotubes (CNTs) by atomic layer deposition (ALD) at moderate temperature.Their size and stoichiometry are controlled by the ALD process parameters. The obtained NiO/CNT hybrids exhibit excellent performance in the electro-oxidation of methanol.

A very simple and promising method to design the anode catalyst architecture for direct alcohol fuel cells by physically mixing Pt/C catalyst with transition-metal oxide nanoparticles is presented and electrochemical measurements confirm that this unique catalyst structure has excellent activity toward alcohol and CO electro-oxidation.

We report on a versatile approach for preparing on-substrate, self-standing and hollow-wall nanotubes (NTs) of Pt and PtRu-alloys. The method takes advantage of wet chemically processed ZnO-NTs that are used as sacrificial templates for electrodeposition. The electrocatalytic activity of these Pt-based NTs is exemplary demonstrated on the electro-oxidation of methanol.

Through the use of ambient pressure X-ray photoelectron spectroscopy (APXPS) and a single-sided solid oxide electrochemical cell (SOC), we have studied the mechanism of electrocatalytic splitting of water (H2O + 2e(-) → H2 + O(2-)) and electro-oxidation of hydrogen (H2 + O(2-) → H2O + 2e(-)) at ∼700 °C in 0.5 Torr of H2/H2O on ceria (CeO2-x) electrodes. The experiments reveal a transient build-...

0022-0728/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.jelechem.2009.03.007 * Corresponding author. E-mail address: [email protected] (S. Che PtRu alloy nanoparticles were prepared by the spontaneous adsorption of Pt(acac)2 on the surface of freshly prepared octanethiolate-protected ruthenium (RuSC8) nanoparticles. UV–vis spectroscopic measurements suggested that the adsorption ...

Combination of electro-Fenton (EF) process with other advanced oxidation processes (AOPs) is found very much effective for water and wastewater treatment. The combined including sono-EF (SEF), photo-EF (PEF), electro-peroxone, ferrate-EF EF persulfate allow enhancing the mineralization efficiency treatment as well reducing operational cost toxicity treated wastewater. Even though, there are sev...

SINGLE-WALLED CARBON NANOTUBE BUCKYPAPERS AS ELECTROCATALYST SUPPORTS FOR METHANOL OXIDATION J.M. Sieben, A. Ansón-Casaos, M.T. Martínez, E. Morallón a Departamento de Química Física and Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99 Alicante, Spain. b Instituto de Carboquímica, CSIC, Miguel Luesma 4, 50018 Zaragoza, Spain. Abstract This work studies the use of various s...

The feasibility of an electro-Fenton process to treat tylosin (TYL), a non-biodegradable antibiotic, was examined in a discontinuous electrochemical cell with divided cathodic and anodic compartments. Only 15 min electrolysis was needed for total tylosin degradation using a carbon felt cathode and a platinum anode; while 6 h electrolysis was needed to achieve high oxidation and mineralization y...