Tim Würger

Tim Würger
Helmholtz-Zentrum Hereon | HZG · Institute of Surface Science

Master of Science

About

16
Publications
8,505
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
135
Citations
Introduction
As an ambitious and curious person, I enjoy working on new problems while in parallel achieving necessary skills to solve a resulting task. Here, my interests lie primarily in the health care sector and focus on topics as cancer research and innovative cancer curative methods. Currently, I try to learn more about the fundamental principles in magnesium corrosion using ab initio methods. Magnesium yields a high potential for implant design in medical engineering, as it bears good mechanical properties, is self-dissolving and biocompatible.
Additional affiliations
February 2018 - present
Helmholtz-Zentrum Hereon
Position
  • PhD Student
October 2016 - December 2016
Federal University of Santa Catarina
Position
  • Researcher
November 2014 - January 2018
Technische Universität Hamburg
Position
  • Research Assistant
Education
September 2015 - February 2016
Aalborg University
Field of study
  • Mechanical Engineering
October 2014 - January 2018
Technische Universität Hamburg
Field of study
  • Biomedical Engineering
October 2010 - June 2014
Technische Universität Hamburg
Field of study
  • Mechanical Engineering

Publications

Publications (16)
Article
Full-text available
Effective protective coatings are an essential component of lightweight engineering materials in a large variety of applications as they ensure structural integrity of the base material throughout its whole service life. Layered double hydroxides (LDHs) loaded with corrosion inhibitors depict a promising approach to realize an active corrosion prot...
Article
Aqueous primary Mg-air batteries have considerable potential as energy sources for sea applications and portable devices. However, some challenges at the anode-electrolyte interface related to self-corrosion, aging of the electrolyte...
Article
Full-text available
The degradation behaviour of magnesium and its alloys can be tuned by small organic molecules. However, an automatic identification of effective organic additives within the vast chemical space of potential compounds needs sophisticated tools.Herein, we propose two systematic approaches of sparse feature selection for identifying molecular descript...
Article
Full-text available
We have studied the degradation of pure magnesium wire in simulated body fluid and its subsets under physiological conditions to enable the prediction of the degradation rate based on the medium's ionic composition. To this end, micro-computed tomography and scanning electron microscopy with energy-dispersive X-ray spectroscopy were used, followed...
Article
Until now, detecting weak spots in composite structures remains a key challenge in the aviation industry. The correct assessment of the load-bearing capability after structural overloading or the occurrence of barely-visible damages is particularly important to maintain structural integrity. Nonetheless, a reliable and overarching non-destructive i...
Article
Full-text available
Small organic molecules that modulate the degradation behavior of Mg constitute benign and useful materials to modify the service environment of light metal materials for specific applications. The vast chemical space of potentially effective compounds can be explored by machine learning-based quantitative structure-property relationship models, ac...
Article
Full-text available
Magnesium is the lightest structural engineering material and bears high potential to manufacture automotive components, medical implants and energy storage systems. However, the practical use of untreated magnesium alloys is restricted as they are prone to corrosion. An essential prerequisite for the control or prevention of the degradation proces...
Article
Full-text available
Integrated attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) – Electrochemical impedance spectroscopy (EIS) measurements were used to simultaneously follow chemisorption mechanisms of organic inhibitors as well as their corrosion inhibition efficiency towards magnesium based substrates. Four carboxylic compounds, i.e....
Article
Full-text available
Highlights • Artificial neural network predicts performance of corrosion modulating agents for Mg. • Calculated HOMO LUMO gap correlates well with inhibition efficiencies for CP Mg. • Model predictions validated by subsequent investigation of untested compounds. • Trained model facilitates performance prediction for material of similar composit...
Article
Full-text available
Magnesium exhibits a high potential for a variety of applications in areas such as transport, energy and medicine. However, untreated magnesium alloys are prone to corrosion, restricting their practical application. Therefore, it is necessary to develop new approaches that can prevent or control corrosion and degradation processes in order to adapt...
Article
Full-text available
Acetone adsorbed on rutile TiO2 nanoparticles was investigated with respect to its energetic, vibrational, and chemical properties. Temperature-dependent ultrahigh-vacuum Fourier transform infrared spectroscopy measurements for different acetone dosages (4.5–900 L) give insights into the acetone adsorption behavior. Those experiments indicate therm...
Article
Density functional theory (DFT) has been applied to elucidate the adsorption structures and energetics of benzoic acid on TiO2 (110), (100), and (011) rutile surfaces. We demonstrate that ab initio calculations of interacting carboxylic acids require an exchange-correlation functional with van der Waals (vdW) correction to yield reliable results, e...

Network

Cited By

Projects

Projects (2)
Project
Chromates have been very effective corrosion inhibitors but are now being banned due to their carcinogenicity. This project aims to use high throughput experiments coupled with machine learning to understand structure-property relationships in small organic corrosion inhibitors and to design better inhibitors to help reduce the $1 trillion cost of corrosion in industry
Project
Magnesium is the lightest engineering material but is prone to corrosion. For a better versatility in fields such as medicine, transport and energy a fundamental understanding of the underlying physical concepts is required. Hence, MD and DFT methods are used to better understand magnesium corrosion and its inhibition on an atomistic level