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Molecular-scale investigations on the reactivity and stability of manganese oxide minerals

English title Molecular-scale investigations on the reactivity and stability of manganese oxide minerals
Applicant Pena Jasquelin
Number 143742
Funding scheme Project funding (Div. I-III)
Research institution Institut de Minéralogie et Géochimie Université de Lausanne
Institution of higher education University of Lausanne - LA
Main discipline Other disciplines of Environmental Sciences
Start/End 01.12.2012 - 30.11.2015
Approved amount 189'512.00
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All Disciplines (3)

Discipline
Other disciplines of Environmental Sciences
Mineralogy
Geochemistry

Keywords (7)

manganese oxides; biomineralization; trace metal biogeochemistry; microbe-mineral interactions; nanogeoscience; photochemistry; spectroscopy

Responsible applicant and co-applicants

Employees

Publications

Publication
Rate and mechanism of the photoreduction of birnessite (MnO2) nanosheets
Marafatto Francesco, Strader Matthew L, Gonzalez-Holguera Julia, Schwartzberg Adam, Gilbert Benjamin, Peña Jasquelin (2015), Rate and mechanism of the photoreduction of birnessite (MnO2) nanosheets, in Proceedings of the National Academy of Sciences, 112(15), 4600-4605.

Collaboration

Group / person Country
Types of collaboration
Dr. Benjamin Gilbert, Earth Sciences Division, Lawrence Berkeley National Laboratory United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
Dr. Adam Schartzberg, Molecular Foundry, Lawrence Berkeley National Laboratory United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Goldschmidt Geochemistry Conference Talk given at a conference Photoreduction of δ-MnO2 Nanosheets (Invited, Session on Manganese biogeochemistry: spanning mechanisms to environmental impacts) 16.08.2015 Prague, Czech Republic Pena Jasquelin; Marafatto Francesco Femi;
Goldschmidt Geochemistry Conference Poster Physicochemical Controls on the Photoreduction of δ-MnO2 (Session on Redox and Radical Biogeochemistry) 16.08.2015 Prague, Czech Republic Marafatto Francesco Femi; Pena Jasquelin;
24th Earth Sciences Meeting of the French Geological Society Poster Photoreduction of δ-MnO2 probed by time-resolved pump-probe spectroscopy 27.10.2014 Pau, France Pena Jasquelin; Marafatto Francesco Femi;
Seminar series, Institute of Earth Sciences (ISTerre), University of Joseph Fourier-Grenoble. Individual talk Birnessite nanoparticles as environmental oxidants: Insights from quick, fast and ultra-fast spectroscopies 19.09.2014 Grenoble, France Pena Jasquelin;
247th National Meeting of the American Chemical Society Talk given at a conference Mechanism of δ-MnO2 photoreduction probed by ultrafast pump-probe spectroscopy 16.03.2014 Dallas, Texas, United States of America Marafatto Francesco Femi; Pena Jasquelin;
11th Swiss Geoscience Meeting Poster Mineralogical and chemical controls on the photoreductive dissolution of birnessite minerals 15.11.2013 Lausanne, Switzerland Marafatto Francesco Femi; Pena Jasquelin;


Self-organised

Title Date Place
Thesis committee meeting (Dr. Benjamin Gilbert; Prof. Stephan Kramer) 25.02.2015 Lausanne, Switzerland
Thesis comittee meeting (Prof. Lukas Baumgartner; Prof. Torsten Vennemann) 07.05.2013 Lausanne, Switzerland

Associated projects

Number Title Start Funding scheme
162825 Rates and mechanisms of water and organic carbon oxidation coupled to MnO2 photoreduction 01.12.2015 Project funding (Div. I-III)

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