Esta entrada solo la puede ver Magda

enero 4, 2018 9:00 am Published by idento Leave your thoughts

Esta entrada sólo la puede ver Magda

Categorised in: Sin categorizar

This post was written by idento

Deja un comentario Cancelar respuesta

Latest Results

Fabrication of Composite Material with Pd Nanoparticles and Graphene on Nickel Foam for Its Excellent Electrocatalytic Performance
Abstract Incorporation of precious metallic nanoparticles onto a carbon support material is used to obtain an electrocatalyst for ethanol oxidation. A composite material of spherical palladium nanoparticles (Pd NPs), reduced graphene oxide (rGO), and polydopamine (PDA) on three-dimensional nickel foam (NF) substrate (Pd/rGO/PDA@NF) has been synthesized for ethanol electrocatalysis. The Pd nanoparticles were obtained via […]
Fabrication of MEA from Biomass-Based Carbon Nanofibers Composited with Nickel-Cobalt Oxides as a New Electrocatalyst for Oxygen Reduction Reaction in Passive Direct Methanol Fuel Cells
Abstract Biomass has some advantages including renewability, abundant resources, being eco-friendly, easy processing, and low cost; and it is an important step in designing electrocatalysts in fuel cells as clean energy sources. In this study, a biomass-based carbon nanofiber of Typha domingensis, as available biomass source, and nickel-cobalt oxides is synthesized. The physicochemical techniques including […]
Recent Advances in Nanocasting Cobalt-Based Mesoporous Materials for Energy Storage and Conversion
Abstract The generation of novel mesoporous materials with well-defined structure and accessible pore networks is helpful in both fundamental and energy-related research. Nanocasting mesoporous earth-abundant materials and their composite materials offer opportunities to make electrochemically active materials that allow scalable production and cost-effectiveness. Recently, due to their intrinsic open pore structure as well as high […]
Preparation of FTO/CU 2 O Electrode Protected by PEDOT:PSS and Its Better Performance in the Photoelectrocatalytic Reduction of CO 2 to Methanol
Abstract Copper(I) oxide (Cu2O) was electrochemically deposited on fluorine-doped tin oxide (FTO) glass electrode and covered with a thin layer of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The electrode was studied in the photoelectrocatalytic reduction of CO2. Methanol was obtained as the major product with a concentration of 460 μmol L−1 with a photoconversion yield of 12% after 60 min […]
FeNi 3 and Ni-Based Nanoparticles as Electrocatalysts for Magnetically Enhanced Alkaline Water Electrolysis
Abstract Today, hydrogen mainly originates from fossil sources (gas, oil, and coal). Room temperature water electrolysis is an interesting alternative for renewable electricity storage, even if it is well-known that high-temperature systems are more efficient. To address this issue, we studied different non-platinum group metal (non-PGM) catalysts for alkaline oxygen evolution reaction (OER) and hydrogen […]
Catalytic Activity of Nanosized Ruthenium Oxide-Coated Titanium Anodes Prepared by Thermal Decomposition for Oxygen Evolution in Sulfuric Acid Solutions
Abstract The effects of the nanoscale particle size of RuO2 in thermally prepared RuO2-coated Ti anodes on electrochemical kinetic parameters such as the active surface area and Tafel slope for oxygen evolution in sulfuric acid solutions were investigated. RuO2/Ti anodes with four different average sizes of RuO2 particles—5.6 nm, 6.8 nm, 14.6 nm, and 21.2 […]
Synthesis and Characterization of AgPd Bimetallic Nanoparticles as Efficient Electrocatalysts for Oxygen Reduction Reaction
Abstract The synthesis of AgPd bimetallic nanoparticles was carried out by a simple polyol method in order to obtain an improved control of the morphology and the particle size. The nanoparticles were characterized using aberration-corrected scanning/transmission electron microscopy (STEM). Also, parallel beam X-ray diffraction analysis was carried out to evaluate the crystallographic structure. High-angle annular […]
Evaluating the Effect of WO 3 on Electrochemical and Corrosion Properties of TiO 2 -RuO 2 - Coated Titanium Anodes with Low Content of RuO 2
Abstract The electrochemical and corrosion characterization of Ti0.97Ru0.03O2/Ti electrodes modified with WO3 was reported. Modification of Ti0.97Ru0.03O2/Ti electrodes with WO3 was previously described as improving the effectiveness of an azo dye degradation in a photoelectrochemical treatment. Thus, the effect of WO3 introduction to oxide film on electrode surface on electrochemical behaviour and stability of the modified […]
Label-Free Electrochemical Immunosensor Based on Gold and Iron-Oxide Nanoparticle Co-modified rGO-TEPA Hybrid for Sensitive Detection of Carcinoembryonic Antigen
Abstract Herein we report a label-free amperometric immunosensor based on reduced graphene oxide-tetraethylene pentamine (rGO-TEPA) hybrid material co-modified by gold and iron-oxide magnetic nanoparticles (Au/MNPs-rGO-TEPA) for detection of carcinoembryonic antigen (CEA). The Au/MNPs-rGO-TEPA nanomaterials were prepared and coated on the working electrode as a sensing platform for antibody (anti-CEA) immobilization and signal amplification. This nanomaterial […]
Synergistically Enhanced Electrocatalytic Stability of Pt Catalyst Supported by Doped Porous Carbon Nanostructure for Oxygen Reduction Reaction
Abstract In proton exchange membrane fuel cells, the utilization of supporting materials for Pt-based catalysts is an effective approach to improve the oxygen reduction reaction (ORR) performance. In this study, a doped porous carbon (DPC) as a support was prepared with polyaniline as the main carbon source, iron nitrate nonahydrate as a metal doping source, […]