Oliver Rodriguez

Oliver Rodriguez
University of Illinois, Urbana-Champaign | UIUC · Beckman Institute for Advanced Science and Technology

PhD in Electrochemistry
Postdoc at JRL lab, UIUC.

About

13
Publications
1,854
Reads
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12
Citations
Introduction
I work with Pt microelectrodes (0.5 to 50 um in diameter) to study the relationship between surface processes and the oxygen reduction reaction on transient conditions (millisecond to second time scales). I have experience with electroanalytical techniques (CV, CA, SCV, CC, SECM) and numerical simulations (diffusion, adsorption, kinetics, finite differences, Python, Matlab, DigiElch, Comsol). I am also developing Soft Potato, an open source electrochemistry simulator. See https://oliverrdz.xyz
Additional affiliations
February 2021 - present
University of Illinois, Urbana-Champaign
Position
  • PostDoc Position
January 2015 - May 2015
Tecnológico de Monterrey
Position
  • T. A. Chemistry of Materials
Education
October 2015 - September 2019
University of Southampton
Field of study
  • Electrochemistry
January 2013 - May 2015
Tecnológico de Monterrey
Field of study
  • Nanotechnology
August 2007 - December 2012
Tecnológico de Monterrey
Field of study
  • Mechanical Engineering

Publications

Publications (13)
Article
Full-text available
The presence of sulfates potentialize damage on cement-based materials, leading to structural failures. Therefore, structures must be designed to compensate for this effect. The mechanical properties of cement–chitin mixtures are investigated with different percentages of chitin (0.5, 1.3, and 2.1 wt.%) and aging of composite in a joint nanoscopic-...
Article
Full-text available
A greener methodology to grow TiO2 nanotubes in a non-corrosive, low-hazard, fluoride-free ethylene glycol/water electrolytic bath is presented. Results demonstrate that the formation of nanostructures by anodization of Ti foils in NaCl solutions requires glycol/water solutions with water contents (> 50%) and moderate voltages (< 30 V). Nanotube gr...
Article
Herein, sampled current voltammetry (SCV) is exploited to study the kinetics of electrochemical reactions with electrode materials that are unsuitable for rotating disc or microelectrode experiments. The approach described opens up the possibility of assessing the electrocatalytic activity of films produced by high throughput deposition techniques,...
Article
In sampled current voltammetry, a sampled current voltammogram (SCV) is constructed by performing a number of potential steps and plotting the currents taken at a specific sampling time against the corresponding step potentials. For diffusion-controlled processes, the technique produces sigmoidal current-potential curves that are easily analysed to...
Article
In this study, we employed microelectrodes and scanning electrochemical microscopy (SECM) to investigate the role of molecular oxygen and local pH changes on the electrochemistry of Pt oxide. We show that in acidic media and alkaline conditions, the impact of O 2 is negligible, while in unbuffered neutral media, O 2 strongly affects the formation o...
Article
Full-text available
Currently, hydrogen production is based on the reforming process, leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. The production of green hydrogen from...
Preprint
Current hydrogen production is based on the reforming process leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. Production of green hydrogen from water e...
Preprint
Current hydrogen production is based on the reforming process leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. Production of green hydrogen from water e...
Thesis
Perry and Denuault reported the presence of an oxygen species that adsorbed on Pt microelectrodes after the electrode was exposed to dissolved oxygen [1, 2, 3]. This species could only be detected at the millisecond scale and when using a neutral and unbuffered media. Although they suggested that the species was oxygenated in nature, its true ident...
Conference Paper
This poster will present recent results obtained for the reduction of dioxygen on perovskite microelectrodes. Briefly, a perovskite powder (La0.58Ag0.4Ni0.6Cu0.4O3) was synthesised using the Pechini method 1 and suspended in a solution consisting of conductive carbon, Nafion, water and ethanol. A 50 μm Ø gold disc electrode was recessed by potentio...
Poster
Full-text available
In this work presents a study of the morphology and Young’s modulus of the E.coli bacteria treated with silver nanoparticles in different sizes (14 and 60nm) and different exposure times (0,15,30 min). Force-distance curves were taken in contact mode and adjusted to model Hertz with Igor Pro software. In the images shown that the size of the untrea...

Projects

Projects (4)
Project
ProtonFlux was conceived as an educational tool and simple aid to the study of reactant conversion in electrochemical reactors and flow cells operating under full mass transfer control. It is based on the electrochemical plug flow reactor model equations. It is better applied to the processing of diluted solutions and electrode reactions taking place at the limiting current. However, mass transfer characterisation and flow rate calculations are useful to any parallel plane electrochemical reactor. ProtonFlux will be specially useful to those working on electrochemical water treatment, decontamination and in the characterisation of mass transfer of electrochemical reactors with relatively uniform current distribution, such as laboratory redox flow batteries. Luis Fernando Arenas Oliver Rodriguez
Project
Soft Potato is an open source simulator of electrochemical processes. It can simulate cyclic voltammetry and chronoamperometry of E mechanisms assuming planar diffusion and Butler Volmer kinetics. For mor info visit https://oliverrdz.xyz/soft-potato.