kth.sePublications
Change search
Link to record
Permanent link

Direct link
Månsson, Martin, As. Prof.ORCID iD iconorcid.org/0000-0002-3086-9642
Alternative names
Publications (10 of 120) Show all publications
Koppel, M., Palm, R., Härmas, R., Telling, M., Le, M. D., Guidi, T., . . . Lust, E. (2024). Disentangling the self-diffusional dynamics of H<inf>2</inf> adsorbed in micro- and mesoporous carbide-derived carbon by wide temporal range quasi-elastic neutron scattering. Carbon, 219, Article ID 118799.
Open this publication in new window or tab >>Disentangling the self-diffusional dynamics of H<inf>2</inf> adsorbed in micro- and mesoporous carbide-derived carbon by wide temporal range quasi-elastic neutron scattering
Show others...
2024 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 219, article id 118799Article in journal (Refereed) Published
Abstract [en]

Understanding the processes guiding the confinement of adsorbed H2 in different porous structures is vital for the development of adsorbents for effective cryo-adsorptive H2 storage systems. Quasi-elastic neutron scattering (QENS) is applied over a wide range of timescales (0.2 ps – 150 ps) to determine different self-diffusion mechanisms of H2 adsorbed in a carbide (synthesized from TiC via the sol-gel method) derived carbon (sol-gel TiC-CDC) adsorbent with hierarchical porous structure. The bulk and porous structure is characterized by gas adsorption, Raman spectroscopy, and wide-angle X-ray scattering methods. Sol-gel TiC-CDC belongs to a series of CDCs that have been previously characterized and where the self-diffusion of adsorbed H2 has been investigated with QENS. Sol-gel TiC-CDC is very mesoporous, has relatively high stacking (2.76 graphenic layers per stack), and small interlayer spacing of graphenic sheets (3.43 Å) in comparison to other CDCs in the series, thus, being a well-ordered highly porous CDC. Restricted rotational self-diffusion of adsorbed H2 is determined in ultramicropores (pore width, w, < 7 Å) and translationally self-diffusing H2 adsorbed in multilayers across multiple timescales are determined in micro- and mesopores (7 Å < w < 500 Å). The microporous and graphenic structure of the CDC does not remarkably affect the self-diffusion of H2 at high surface coverages. The simultaneous determination of adsorbed H2 motions across different timescales allows to analyze the influence of micro- and mesopores under H2 loading conditions, which are close to the ones used in technical applications and are vital for adsorbent optimization.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Carbide-derived carbon, H adsorption 2, H self-diffusion 2, Quasi-elastic neutron scattering, Ultramicroporous confinement
National Category
Physical Chemistry
Identifiers
urn:nbn:se:kth:diva-342633 (URN)10.1016/j.carbon.2024.118799 (DOI)2-s2.0-85182279915 (Scopus ID)
Note

QC 20240130

Available from: 2024-01-25 Created: 2024-01-25 Last updated: 2024-01-30Bibliographically approved
Teppor, P., Jager, R., Koppel, M., Volobujeva, O., Palm, R., Månsson, M., . . . Lust, E. (2024). Unlocking the porosity of Fe-N-C catalysts using hydroxyapatite as a hard template en route to eco-friendly high-performance AEMFCs. Journal of Power Sources, 591, Article ID 233816.
Open this publication in new window or tab >>Unlocking the porosity of Fe-N-C catalysts using hydroxyapatite as a hard template en route to eco-friendly high-performance AEMFCs
Show others...
2024 (English)In: Journal of Power Sources, ISSN 0378-7753, E-ISSN 1873-2755, Vol. 591, article id 233816Article in journal (Refereed) Published
Abstract [en]

In this work, we propose hydroxyapatite (HA) as a hard template to unlock the porosity of Fe-N-C catalyst materials. Using HA, a naturally occurring mineral that can be removed with nitric acid, in the synthesis generates a catalyst material with a unique porous network comprising abundant pores and interparticle cavities ranging from 10 to 3000 nm. Hard templating with HA alongside ZnCl2 as a micropore former results in a Fe-N-C catalyst based on naturally abundant peat with excellent oxygen reduction activity in alkaline conditions. A half -wave potential of 0.87 V vs RHE and a peak power density of 1.06 W cm-2 were achieved in rotating ring disk electrode and anion exchange membrane fuel cell experiments, respectively, rivaling the performance of other state-of-the-art platinum-free catalysts presented in the literature. A combined approach of using renewable peat as a carbon source and HA as a hard template offers an environmentally friendly approach to high-performance Fe-N-C catalysts with abundant porosity.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Fe -N -C, AEMFC, Oxygen reduction reaction, Hard template, Hydroxyapatite
National Category
Other Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-342062 (URN)10.1016/j.jpowsour.2023.233816 (DOI)001125266200001 ()2-s2.0-85177893407 (Scopus ID)
Note

QC 20240110

Available from: 2024-01-10 Created: 2024-01-10 Last updated: 2024-01-10Bibliographically approved
Zhang, C., Yuan, Y. H., Song, J. J., Rusz, J., Zhao, Y. Z., Wu, Q. Y., . . . Meng, J. Q. (2023). Antiferromagnetic order in Kondo lattice CePd5Al2 possibly driven by nesting. Physical Review B, 108(3), Article ID 035108.
Open this publication in new window or tab >>Antiferromagnetic order in Kondo lattice CePd5Al2 possibly driven by nesting
Show others...
2023 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 108, no 3, article id 035108Article in journal (Refereed) Published
Abstract [en]

We investigated the electronic structure of the antiferromagnetic Kondo lattice CePd5Al2 using high-resolution angle-resolved photoemission spectroscopy. The experimentally determined band structure of the conduction electrons is predominated by the Pd 4d character. It contains multiple hole and electron Fermi pockets, in good agreement with density functional theory calculations. The Fermi surface is folded over Q0=(0,0,1), manifested by Fermi surface reconstruction and band folding. Our results suggest that Fermi surface nesting drives the formation of antiferromagnetic order in CePd5Al2.

Place, publisher, year, edition, pages
American Physical Society (APS), 2023
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-334360 (URN)10.1103/PhysRevB.108.035108 (DOI)001074455300008 ()2-s2.0-85164615915 (Scopus ID)
Note

QC 20231025

Available from: 2023-08-21 Created: 2023-08-21 Last updated: 2023-10-25Bibliographically approved
Nocerino, E., Kobayashi, S., Witteveen, C., Forslund, O. K., Matsubara, N., Tang, C., . . . Månsson, M. (2023). Competition between magnetic interactions and structural instabilities leading to itinerant frustration in the triangular lattice antiferromagnet LiCrSe2. Communications Materials, 4(1), Article ID 81.
Open this publication in new window or tab >>Competition between magnetic interactions and structural instabilities leading to itinerant frustration in the triangular lattice antiferromagnet LiCrSe2
Show others...
2023 (English)In: Communications Materials, E-ISSN 2662-4443, Vol. 4, no 1, article id 81Article in journal (Refereed) Published
Abstract [en]

LiCrSe2 constitutes a recent valuable addition to the ensemble of two-dimensional triangular lattice antiferromagnets. In this work, we present a comprehensive study of the low temperature nuclear and magnetic structure established in this material. Being subject to a strong magnetoelastic coupling, LiCrSe2 was found to undergo a first order structural transition from a trigonal crystal system (P3 ¯ m1) to a monoclinic one (C2/m) at T s = 30 K. Such restructuring of the lattice is accompanied by a magnetic transition at T N = 30 K. Refinement of the magnetic structure with neutron diffraction data and complementary muon spin rotation analysis reveal the presence of a complex incommensurate magnetic structure with a up-up-down-down arrangement of the chromium moments with ferromagnetic double chains coupled antiferromagnetically. The spin axial vector is also modulated both in direction and modulus, resulting in a spin density wave-like order with periodic suppression of the chromium moment along the chains. This behavior is believed to appear as a result of strong competition between direct exchange antiferromagnetic and superexchange ferromagnetic couplings established between both nearest neighbor and next nearest neighbor Cr3+ ions. We finally conjecture that the resulting magnetic order is stabilized via subtle vacancy/charge order within the lithium layers, potentially causing a mix of two co-existing magnetic phases within the sample.

Place, publisher, year, edition, pages
Springer Nature, 2023
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-338336 (URN)10.1038/s43246-023-00407-x (DOI)001082516900001 ()2-s2.0-85173564755 (Scopus ID)
Note

Correction in 10.1038/s43246-023-00426-8

QC 20231020

Available from: 2023-10-20 Created: 2023-10-20 Last updated: 2023-12-07Bibliographically approved
Ramah, P., Palm, R., Tuul, K., Aruväli, J., Månsson, M. & Lust, E. (2023). Confinement of LiAlH4 in a Mesoporous Carbon Black for Improved Near-Ambient Release of H2. Reactions, 4(4), 635-646
Open this publication in new window or tab >>Confinement of LiAlH4 in a Mesoporous Carbon Black for Improved Near-Ambient Release of H2
Show others...
2023 (English)In: Reactions, E-ISSN 2624-781X, Vol. 4, no 4, p. 635-646Article in journal (Refereed) Published
Abstract [en]

LiAlH4 is a potential solid-state H2 storage material, where safe and efficient H2 storage is of critical importance for the transition towards a sustainable emission-free economy. To improve the H2 release and storage properties of LiAlH4, confinement in porous media decreases the temperature of H2 release and improves the kinetics, where considerably improved H2 release properties are accompanied by a loss in the total amount of H2 released. The capability of mesoporous carbon black to improve the H2 storage properties of confined LiAlH4 is investigated with temperature-programmed desorption and time-stability measurements using X-ray diffraction and N2 gas adsorption measurements to characterize the composite materials’ composition and structure. Here, we present the capability of commercial carbon black to effectively lower the onset temperature of H2 release to that of near-ambient, ≥295 K. In addition, the confinement in mesoporous carbon black destabilized LiAlH4 to a degree that during ≤14 days in storage, under Ar atmosphere and at ambient temperature, 40% of the theoretically contained H2 was lost due to decomposition. Thus, we present the possibility of destabilizing LiAlH4 to a very high degree and, thus, avoiding the melting step before H2 release at around 440 K using scaffold materials with fine-tuned porosities.

Place, publisher, year, edition, pages
MDPI AG, 2023
Keywords
complex metal hydride, H storage 2, LiAlH 4, N adsorption 2, nanoconfinement, temperature-programmed desorption, time-stability, X-ray diffraction
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-342143 (URN)10.3390/reactions4040035 (DOI)001132001500001 ()2-s2.0-85180689699 (Scopus ID)
Note

QC 20240115

Available from: 2024-01-15 Created: 2024-01-15 Last updated: 2024-01-15Bibliographically approved
Ge, Y., Andreica, D., Sassa, Y., Nocerino, E., Pomjakushina, E., Khasanov, R., . . . Forslund, O. K. (2023). Confirming the high pressure phase diagram of the Shastry-Sutherland model. In: Prando, G Pratt, F (Ed.), Proceedings 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR): . Paper presented at 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY. IOP Publishing, 2462, Article ID 012042.
Open this publication in new window or tab >>Confirming the high pressure phase diagram of the Shastry-Sutherland model
Show others...
2023 (English)In: Proceedings 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR) / [ed] Prando, G Pratt, F, IOP Publishing , 2023, Vol. 2462, article id 012042Conference paper, Published paper (Refereed)
Abstract [en]

A Muon Spin Rotation (mu+SR) study was conducted to investigate the magnetic properties of SrCu2(BO3)(2) (SCBO) as a function of temperature/pressure. Measurements in zero field and transverse field confirm the absence of long range magnetic order at high pressures and low temperatures. These measurements suggest changes in the Cu spin fluctuations characteristics above 21 kbar, consistent with the formation of a plaquette phase as previously suggested by inelastic neutron scattering measurements. SCBO is the only known realisation of the Shatry-Sutherland model, thus the ground state mediating the dimer and antiferromagnetic phase is likekly to be a plaquette state.

Place, publisher, year, edition, pages
IOP Publishing, 2023
Series
Journal of Physics Conference Series, ISSN 1742-6588
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-329875 (URN)10.1088/1742-6596/2462/1/012042 (DOI)000995428200042 ()2-s2.0-85152616564 (Scopus ID)
Conference
15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY
Note

QC 20230626

Available from: 2023-06-26 Created: 2023-06-26 Last updated: 2023-12-07Bibliographically approved
Facio, J. I., Nocerino, E., Fulga, I. C., Wawrzynczak, R., Brown, J., Gu, G., . . . Meng, T. (2023). Engineering a pure Dirac regime in ZrTe5. SciPost Physics, 14(4), Article ID 066.
Open this publication in new window or tab >>Engineering a pure Dirac regime in ZrTe5
Show others...
2023 (English)In: SciPost Physics, E-ISSN 2542-4653, Vol. 14, no 4, article id 066Article in journal (Refereed) Published
Abstract [en]

Real-world topological semimetals typically exhibit Dirac and Weyl nodes that coexist with trivial Fermi pockets. This tends to mask the physics of the relativistic quasiparti-cles. Using the example of ZrTe5, we show that strain provides a powerful tool for in-situ tuning of the band structure such that all trivial pockets are pushed far away from the Fermi energy, but only for a certain range of Van der Waals gaps. Our results naturally reconcile contradicting reports on the presence or absence of additional pockets in ZrTe5, and provide a clear map of where to find a pure three-dimensional Dirac semimetallic phase in the structural parameter space of the material.

Place, publisher, year, edition, pages
Stichting SciPost, 2023
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-327404 (URN)10.21468/SciPostPhys.14.4.066 (DOI)000972111900003 ()2-s2.0-85156185322 (Scopus ID)
Note

QC 20230526

Available from: 2023-05-26 Created: 2023-05-26 Last updated: 2023-12-07Bibliographically approved
Ohishi, K., Igarashi, D., Tatara, R., Umegaki, I., Nakamura, J. G., Koda, A., . . . Sugiyama, J. (2023). Ion Dynamics in P2-NaxCoO2 Detected with Operando Muon Spin Rotation and Relaxation. ACS Applied Energy Materials, 6(15), 8111-8119
Open this publication in new window or tab >>Ion Dynamics in P2-NaxCoO2 Detected with Operando Muon Spin Rotation and Relaxation
Show others...
2023 (English)In: ACS Applied Energy Materials, E-ISSN 2574-0962, Vol. 6, no 15, p. 8111-8119Article in journal (Refereed) Published
Abstract [en]

In this study, the self-diffusion coefficient of Na+ (DNaJ) in P2-NaxCoO2 was measured during charge and discharge reactions between P2-NaxCoO2 and Na metal electrodes in the electrochemical half-cell using an operando muon spin rotation and relaxation (μ+SR) technique through the observation of a fluctuating nuclear magnetic field. The measurements were performed at room temperature [297(1) K] in the half-cell potential range of 2.25-4.0 V. DNaJ was found to range between 7 × 10-12 and 2 × 10-11 cm2/s, which roughly decreased with decreasing Na content x. However, the apparent self-diffusion coefficient determined with an electrochemical technique (DNaJ,app) was approximately 1 order of magnitude greater than DNaJ in the whole range of x measured, besides three sharp minima at x = 1/2, 2/3, and approx. 0.72. The absence of the sharp minima in the μ+SR-determined DNaJ(x) curve is attributed to the fact that μ+SR provides local diffusive information, while electrochemical techniques are based on macroscopic Na+ flow. The μ+SR measurements on the P2-Na0.75CoO2 powder sample indicated a strong temperature dependence of the Na dynamics, particularly near room temperature.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2023
Keywords
ion diffusion, muon spin rotation and relaxation, Na-ion battery, NaCoO 2, nuclear magnetic field, operando measurements
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-338516 (URN)10.1021/acsaem.3c01197 (DOI)001033104900001 ()2-s2.0-85166751599 (Scopus ID)
Note

QC 20231114

Available from: 2023-11-14 Created: 2023-11-14 Last updated: 2023-11-14Bibliographically approved
Nocerino, E., Forslund, O. K., Wang, C., Sakurai, H., Elson, F., Palm, R., . . . Månsson, M. (2023). Magnetic nature of wolframite MgReO4. In: Prando, G Pratt, F (Ed.), 15th International Conference on Muon Spin Rotation, Relaxation and Resonance, MuSR 2022: . Paper presented at 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY. IOP Publishing, 2462, Article ID 012037.
Open this publication in new window or tab >>Magnetic nature of wolframite MgReO4
Show others...
2023 (English)In: 15th International Conference on Muon Spin Rotation, Relaxation and Resonance, MuSR 2022 / [ed] Prando, G Pratt, F, IOP Publishing , 2023, Vol. 2462, article id 012037Conference paper, Published paper (Refereed)
Abstract [en]

Rhenium oxides belonging to the family AReO4 where A is a metal cation, exhibit interesting electronic and magnetic properties. In this study we have utilized the muon spin rotation/relaxation (mu+SR) technique to study the magnetic properties of the MgReO4 compound. To the best of our knowledge, this is the first investigation reported on this interesting material, that is stabilized in a wolframite crystal structure using a special highpressure synthesis technique. Bulk magnetic studies show the onset of an antiferromagnetic (AF) long range order, or a possible singlet spin state at T-C1 approximate to 90 K, with a subtle second hightemperature transition at T-C2 approximate to 280 K. Both transitions are also confirmed by heat capacity (Cp) measurements. From our mu+SR measurements, it is clear that the sample enters an AF order below T-C1 = T-N approximate to 85 K. We find no evidence of magnetic signal above TN, which indicates that T-C2 is likely linked to a structural transition. Further, via sensitive zero field (ZF) mu(+) SR measurements we find evidence of a spin reorientation at T-Cant approximate to 65 K. This points towards a transition from a collinear AF into a canted AF order at low temperature, which is proposed to be driven by competing magnetic interactions.

Place, publisher, year, edition, pages
IOP Publishing, 2023
Series
Journal of Physics Conference Series, ISSN 1742-6588
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-329458 (URN)10.1088/1742-6596/2462/1/012037 (DOI)000995428200037 ()2-s2.0-85152622076 (Scopus ID)
Conference
15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY
Note

QC 20230621

Available from: 2023-06-21 Created: 2023-06-21 Last updated: 2023-12-07Bibliographically approved
Miniotaite, U., Forslund, O. K., Nocerino, E., Elson, F., Palm, R., Matsubara, N., . . . Månsson, M. (2023). Magnetic Properties of Multifunctional (LiFePO4)-Li-7 under Hydrostatic Pressure. In: Prando, G Pratt, F (Ed.), Proceedings 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR): . Paper presented at 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY. IOP Publishing, 2462, Article ID 012049.
Open this publication in new window or tab >>Magnetic Properties of Multifunctional (LiFePO4)-Li-7 under Hydrostatic Pressure
Show others...
2023 (English)In: Proceedings 15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR) / [ed] Prando, G Pratt, F, IOP Publishing , 2023, Vol. 2462, article id 012049Conference paper, Published paper (Refereed)
Abstract [en]

LiFePO4 (LFPO) is an archetypical and well-known cathode material for rechargeable Li-ion batteries. However, its quasi-one-dimensional (Q1D) structure along with the Fe ions, LFPO also displays interesting low-temperature magnetic properties. Our team has previously utilized the muon spin rotation (mu+SR) technique to investigate both magnetic spin order as well as Li-ion diffusion in LFPO. In this initial study we extend our investigation and make use of high-pressure mu+SR to investigate effects on the low-T magnetic order. Contrary to theoretical predictions we find that the magnetic ordering temperature as well as the ordered magnetic moment increase at high pressure (compressive strain).

Place, publisher, year, edition, pages
IOP Publishing, 2023
Series
Journal of Physics Conference Series, ISSN 1742-6588
National Category
Other Materials Engineering
Identifiers
urn:nbn:se:kth:diva-329856 (URN)10.1088/1742-6596/2462/1/012049 (DOI)000995428200049 ()2-s2.0-85152635129 (Scopus ID)
Conference
15th International Conference on Muon Spin Rotation, Relaxation and Resonance (SR), AUG 28-SEP 02, 2022, Univ Parma, Parma, ITALY
Note

QC 20230626

Available from: 2023-06-26 Created: 2023-06-26 Last updated: 2023-12-07Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-3086-9642

Search in DiVA

Show all publications