There are two Pos-Doc positions, both for a two years work in the project:
Proc 013/16930 "ELECTROCATALYSIS V: Electrocatalytic Processes of Chemical and Electrical Energy Interconversion", sponsored by Fundação de Amparo a Pesquisa do Estado de São Paulo. The work is to be developed at the Institute of Chemistry of São Carlos, University of São Paulo at São Carlos in the Electrochemistry Group, Brazil (http://www.iqsc.usp.br/dfq/index.php?filename=grupo&id=17).
Application can be made for the development of the following projects:
Supervisor: Prof. Dr. Edson Antonio Ticianelli (firstname.lastname@example.org).
Summary: Many investigations on the kinetics oxygen reduction reaction (ORR) are devoted to the synthesis of various metallic nanostructures, aiming at increasing the activity and durability of electrocatalysts for this reaction. This investigation would involve the preparation and characterization of nanostructured composite materials formed by platinum in combination with other transition metals, supported on carbon powder, metal oxides and metal carbides to be used as electrocatalysts for the ORR in acid media. Characterization of the materials can be made by using several techniques such as X-ray diffraction, transmission electron microscopy, in situ X-ray absorption spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy. Electrochemical studies may include steady stated polarization measurements for the ORR, using rotating ring/disk thin porous coating electrodes in liquid electrolyte and gas diffusion electrodes in H2/O2 PEMFC single cells working at 80 oC. Electrochemical studies aim at characterizing the catalytic activity toward the ORR and the durability of the materials after submitted accelerated aging procedures. Emphasis will be given to analyze these structures using the ILTEM (identical location transmission electron microscopy) technique verify the effects of aging regarding the dissolution of the precious and non-precious metal, corrosion of the carbon support, average particle size, formation of hollow structures , etc.
Supervisor: Prof. Dr. Germano Tremiliosi-Filho (email@example.com)
Summary: The research aims to perform fundamental studies specially on the mechanistic aspects of the electro-oxidation reactions of ethanol, glycerol, and other organic molecules Cn on well defined single crystal surfaces. Additionally, synthesis and characterization of nanostructured electrocatalysts formed by the combination of metals and oxides of noble metals and non-noble catalysts for the oxidation of ethanol, glycerol, and other organic molecules Cn also should be considered. These studies, in a fundamental level, will involve quantitative determination of the reaction intermediates and products by in situ FTIR spectroscopy, on-line differential electrochemistry mass spectrometry, liquid and ion chromatographies. Gas chromatography also can be employed using electrochemical half-cell with stagnant and flow (under conditions of controlled mass transport) electrolytes and in unitary PEM type fuel cells. This type of applied study will be made in a PEM unitary fuel cell using electrodes of 5 cm _ feed with ethanol or glycerol at the anode and oxygen at the cathode, for evaluation of current density and energy efficiency. Measurements of current distribution, aiming the improvement of the preparation conditions of the membrane electrode assembly (MEA), with the focus on the cell operation conditions. These studies also involve quantitative determination of the reaction products using techniques such as mass spectrometry, gas, liquid and ion chromatographies.
The candidates must demonstrate previous experience in electrocatalytic researches of fuel cell reactions. For inscriptions (in one or both projects), the following documents should be sent, in pdf format, to the respective project supervisor to the electronic address above mentioned, until 10 October 2014:
1) Recommendation Letter;
2) Letter at which the candidate describes his experience in the research field and defines his interest in Project 1 or 2;
3) Copy of the Abstract of his PhD thesis;
SUMMARY OF THE THEMATIC PROJECT
This research project aims at studying the electrocatalytic processes related to electrochemical systems for the chemical and electrical energy interconversion, in galvanic and electrolytic devices. The main focus is associated to the study of reactions involved in electrocatalysis for fuel cells feed with organic and inorganic molecules, metal / air batteries, regenerative electrochemical systems, hydrogen production and electro-reduction of carbon dioxide. Some fundamental aspects of the electrocatalysis and kinetic instabilities of these reactions will be investigated on single crystals and nanostructured metal electrocatalysts. The investigations will include correlation between the electrocatalytic activities and stabilities with the composition and structure of the nanoparticles. Finally, operational electrochemical investigations will be made on operating systems built using the most active electrocatalysts investigated in the previous studies. The project will be conducted by a team composed of permanent members including 6 professors/researchers, 2 researchers, 2 scientific technicians and 40 temporary collaborators such as post-docs, PhD and master students, and undergraduate students, mostly from the Institute of Chemistry of Sao Carlos, USP.
Special Open Call for Position
Postdoctoral Fellowship in Bioelectrochemistry
The Laboratory of Bioelectrochemistry and Interfaces at São Paulo University (USP), campus at São Carlos, SP, Brazil, invites applications for a postdoctoral research fellowship in bioelectrochemistry funded by Foundation for Research Support of the State of São Paulo (FAPESP) contract. The successful candidate will conduct research on the molecular interaction between biomolecules and nanostructures, including:
- developing and testing enzymes bioelectrodes;
- transferring high activity/selectivity biocatalyst to a surface-confined environment;
- studying the interplay between charge transport, mass transport, and molecular conformation of enzymes;
- developing new tools for FTIR Chemical Imaging coupled with electrochemistry.
Fellowship for postdoctoral researchers allows you to carry out a long-term research project (12-24 months), starting at 02.01.2015.
Applicants must have a Ph.D. in chemistry, chemical engineering, electrochemical engineering, or a related field. Experience in enzymes immobilization and basic electrochemistry is required. Experience with UV-Vis spectroscopy, and FTIR spectroscopy, is preferred. The successful candidate must have excellent communication skills and excel in a highly collaborative research environment. In addition to the timely publication of research results in peer-reviewed journals, the responsibilities of the postdoc include drafting progress reports. Interested individuals should send a (i)cover letter, (II) CV and list of publications, and have (III) two letters of recommendation sent to firstname.lastname@example.org.
The deadline for application is 11.15.2014.