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Serrano-Sevillano J, Carlier D, Saracibar A, Lopez del Amo JM, Casas-Cabanas M. DFT-Assisted Solid-State NMR Characterization of Defects in Li2MnO3. Inorg Chem 2019; 58:8347-8356. [DOI: 10.1021/acs.inorgchem.9b00394] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jon Serrano-Sevillano
- CIC energiGUNE, Parque Tecnológico de Álava, C/Albert Einstein 48, 01510 Miñano, Álava Spain
- Physical Chemistry Department, Pharmacy Faculty, Basque Country University, 01006 Vitoria-Gasteiz, Álava Spain
| | - Dany Carlier
- CNRS, Bordeaux INP, ICMCB UMR5026, Université Bordeaux, F-33600 Pessac, France
| | - Amaia Saracibar
- Physical Chemistry Department, Pharmacy Faculty, Basque Country University, 01006 Vitoria-Gasteiz, Álava Spain
| | | | - Montse Casas-Cabanas
- CIC energiGUNE, Parque Tecnológico de Álava, C/Albert Einstein 48, 01510 Miñano, Álava Spain
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Benndorf C, Stegemann F, Seidel S, Schubert L, Bartsch M, Zacharias H, Mausolf B, Haarmann F, Eckert H, Pöttgen R, Janka O. Equiatomic AEAuX (AE=Ca-Ba, X=Al-In) Intermetallics: A Systematic Study of their Electronic Structure and Spectroscopic Properties. Chemistry 2017; 23:4187-4196. [PMID: 28139849 DOI: 10.1002/chem.201605838] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Indexed: 11/08/2022]
Abstract
The three intermetallic compounds SrAuGa, BaAuAl and BaAuGa were synthesised from the elements in niobium ampoules. The Sr compound crystallises in the orthorhombic KHg2 -type structure (Imma, a=465.6(1), b=771.8(2), c=792.6(2) pm, wR2 =0.0740, 324 F2 values, 13 variables), whereas the Ba compounds were both found to crystallise in the cubic non-centrosymmetric LaIrSi-type structure (P21 3, BaAuAl: a=696.5(1) pm; wR2 =0.0427, 446 F2 values, 12 variables; BaAuGa: a=693.49(4) pm, wR2 =0.0717, 447 F2 values, 12 variables). The samples were investigated by powder X-ray diffraction and their structures refined on the basis of single-crystal X-ray diffraction data. The title compounds, along with references from the literature (CaAuAl, CaAuGa, CaAuIn, and SrAuIn), were characterised further by susceptibility measurements and 27 Al and 71 Ga solid-state NMR spectroscopy. Theoretical calculations of the density of states (DOS) and the NMR parameters were used for the interpretation of the spectroscopic data. The electron transfer from the alkaline-earth metals and the group 13 elements onto the gold atoms was investigated through X-ray photoelectron spectroscopy (XPS), classifying these intermetallics as aurides.
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Affiliation(s)
- Christopher Benndorf
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany.,Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 28/30, 48149, Münster, Germany
| | - Frank Stegemann
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Stefan Seidel
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Lea Schubert
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Manfred Bartsch
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Helmut Zacharias
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Bernhard Mausolf
- Institut für Anorganische Chemie, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Frank Haarmann
- Institut für Anorganische Chemie, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany.,Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187, Dresden, Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 28/30, 48149, Münster, Germany.,Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, 13566-590, Brazil
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Oliver Janka
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany.,Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl-von-Ossietzky Strasse 9-11, 26129, Oldenburg, Germany
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Pecher O, Mausolf B, Peters V, Lamberts K, Korthaus A, Haarmann F. Unravelling Local Atomic Order of the Anionic Sublattice in M(Al1−xGax)4with M=Sr and Ba by Using NMR Spectroscopy and Quantum Mechanical Modelling. Chemistry 2016; 22:17833-17842. [DOI: 10.1002/chem.201602475] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Oliver Pecher
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Strasse 40 01187 Dresden Germany
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Bernhard Mausolf
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Volker Peters
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Kevin Lamberts
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Alexander Korthaus
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Frank Haarmann
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Strasse 40 01187 Dresden Germany
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Scherf LM, Pecher O, Griffith KJ, Haarmann F, Grey CP, Fässler TF. Zintl Phases K4-xNaxSi4(1 ≤x≤ 2.2) and K7NaSi8: Synthesis, Crystal Structures, and Solid-State NMR Spectroscopic Investigations. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600735] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lavinia M. Scherf
- Department of Chemistry; Technical University of Munich; Lichtenbergstraße 4 85747 Garching/München Germany
| | - Oliver Pecher
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Kent J. Griffith
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Frank Haarmann
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52073 Aachen Germany
- Max Planck Institute for Chemical Physics of Solids; Nöthnitzer Str. 40 01187 Dresden Germany
| | - Clare P. Grey
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Thomas F. Fässler
- Department of Chemistry; Technical University of Munich; Lichtenbergstraße 4 85747 Garching/München Germany
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Pecher O, Bayley PM, Liu H, Liu Z, Trease NM, Grey CP. Automatic Tuning Matching Cycler (ATMC) in situ NMR spectroscopy as a novel approach for real-time investigations of Li- and Na-ion batteries. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2016; 265:200-209. [PMID: 26938943 DOI: 10.1016/j.jmr.2016.02.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/11/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
We have developed and explored the use of a new Automatic Tuning Matching Cycler (ATMC) in situ NMR probe system to track the formation of intermediate phases and investigate electrolyte decomposition during electrochemical cycling of Li- and Na-ion batteries (LIBs and NIBs). The new approach addresses many of the issues arising during in situ NMR, e.g., significantly different shifts of the multi-component samples, changing sample conditions (such as the magnetic susceptibility and conductivity) during cycling, signal broadening due to paramagnetism as well as interferences between the NMR and external cycler circuit that might impair the experiments. We provide practical insight into how to conduct ATMC in situ NMR experiments and discuss applications of the methodology to LiFePO4 (LFP) and Na3V2(PO4)2F3 cathodes as well as Na metal anodes. Automatic frequency sweep (7)Li in situ NMR reveals significant changes of the strongly paramagnetic broadened LFP line shape in agreement with the structural changes due to delithiation. Additionally, (31)P in situ NMR shows a full separation of the electrolyte and cathode NMR signals and is a key feature for a deeper understanding of the processes occurring during charge/discharge on the local atomic scale of NMR. (31)P in situ NMR with "on-the-fly" re-calibrated, varying carrier frequencies on Na3V2(PO4)2F3 as a cathode in a NIB enabled the detection of different P signals within a huge frequency range of 4000 ppm. The experiments show a significant shift and changes in the number as well as intensities of (31)P signals during desodiation/sodiation of the cathode. The in situ experiments reveal changes of local P environments that in part have not been seen in ex situ NMR investigations. Furthermore, we applied ATMC (23)Na in situ NMR on symmetrical Na-Na cells during galvanostatic plating. An automatic adjustment of the NMR carrier frequency during the in situ experiment ensured on-resonance conditions for the Na metal and electrolyte peak, respectively. Thus, interleaved measurements with different optimal NMR set-ups for the metal and electrolyte, respectively, became possible. This allowed the formation of different Na metal species as well as a quantification of electrolyte consumption during the electrochemical experiment to be monitored. The new approach is likely to benefit a further understanding of Na-ion battery chemistries.
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Affiliation(s)
- Oliver Pecher
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
| | - Paul M Bayley
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
| | - Hao Liu
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
| | - Zigeng Liu
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
| | - Nicole M Trease
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
| | - Clare P Grey
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK.
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