Paulo Henrique Barros Brant CarvalhoPhD Student

Om mig

Ulrich Häussermann's group

I hold a BSc in Chemistry from the University of Sao Paulo, an 8-semesters program with a solid and diversified curriculum in the several aspects of the field and in particular in analytical chemistry, spectroscopy and its applications. I concluded a Masters in the European program Advanced Spectroscopy in Chemistry (ASC), a 2-year program hosted at two renowned universities in Europe, University of Lille and the Jagiellonian University of Krakow. I chose the identification of Lewis acid sites on zeolites as the topic of my master thesis, for which I got to perform density functional theory (DFT) calculations to generate theoretical x-ray absorption near-edge structure (XANES) spectra for further interpretation of experimental synchrotron data.

In my Ph.D. project entitled "pressure-induced amorphization and glassy states of clathrate hydrates", I utilize neutron scattering techniques, typically under extreme conditions of pressure and low temperature, to evaluate the phase transformations and structure of amorphous clathrate hydrates.

Publications

Elucidation of the pressure induced amorphization of tetrahydrofuran clathrate hydrate
PHB Brant Carvalho, A Mace, CL Bull, NP Funnell, CA Tulk, O Andersson, et al.
The Journal of Chemical Physics 150 (20), 204506, 2019.

Layered Zinc Hydroxide Dihydrate, Zn5(OH)10·2H2O, from Hydrothermal Conversion of ε-Zn(OH)2 at Gigapascal Pressures and its Transformation to Nanocrystalline ZnO
A Gordeeva, YJ Hsu, IZ Jenei, PHB Brant Carvalho, SI Simak, et al.
ACS Omega 5 (28), 17617-17627, 2020.

Pressure-induced amorphization of noble gas clathrate hydrates
PHB Brant Carvalho, A Mace, O Andersson, CA Tulk, J Molaison, et al.
Physical Review B 103 (6), 064205, 2019.

Transitions in pressure-amorphized clathrate hydrates akin to those of amorphous ices
Andersson, PHB Brant Carvalho, YJ Hsu and U Häussermann.
The Journal of Chemical Physics 151 (1), 014502, 2019.

Elucidating the guest disorder in structure II argon hydrate–A neutron diffraction isotopic substitution study
PHB Brant Carvalho, A Mace, O Andersson, CA Tulk, J Molaison, et al.
Journal of Solid State Chemistry 285, 121220, 2020.

Structural investigation of three distinct amorphous forms of Ar hydrate
PHB Brant Carvalho, PIR Moraes, AA Leitão, O Andersson, CA Tulk, et al.
RSC Advances 11 (49), 30744-30754, 2021.

Exploring High-Pressure Transformations in Low-Z (H2, Ne) Hydrates at Low Temperatures
PHB Brant Carvalho, A Mace, IM Nangoi, AA Leitão, CA Tulk, JJ Molaison, et al.
Crystals 12 (1), 9, 2022.

Vibrational properties of SrVO2H with large spin-phonon coupling
R Lavén, PIR Moraes, MS Targama, M Karlsson, AA Leitão, PHB Brant Carvalho, SF Parker, et al.Phys. Rev. Materials 6, 024409, 2022.

In Situ Inelastic Neutron Scattering of Mixed CH4–CO2 Hydrates
B Cladek, AJ Ramirez-Cuesta, SM Everett, M McDonnell, L Daeman, Y Cheng, PHB Brant Carvalho, CA Tulk, MG Tucker, DJ Keffer, CJ Rawn.
Fuel 327, 125197, 2022.

Evidence suggesting kinetic unfreezing of water mobility in two distinct processes in pressure-amorphized clathrate hydrates
O Andersson, PHB Brant Carvalho, U Häussermann, YJ Hsu.
Phys. Chem. Chem. Phys., 24, 20064, 2022.