1
|
Ghosh K, Ovchinnikov A, Baitinger M, Krnel M, Burkhardt U, Grin Y, Bobev S. Lithium metal atoms fill vacancies in the germanium network of a type-I clathrate: synthesis and structural characterization of Ba 8Li 5Ge 41. Dalton Trans 2023; 52:10310-10322. [PMID: 37221973 DOI: 10.1039/d3dt01168b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Clathrate phases with crystal structures exhibiting complex disorder have been the subject of many prior studies. Here we report syntheses, crystal and electronic structure, and chemical bonding analysis of a Li-substituted Ge-based clathrate phase with the refined chemical formula Ba8Li5.0(1)Ge41.0, which is a rare example of ternary clathrate-I where alkali metal atoms substitute framework Ge atoms. Two different synthesis methods to grow single crystals of the new clathrate phase are presented, in addition to the classical approach towards polycrystalline materials by combining pure elements in desired stoichiometric ratios. Structure elucidations for samples from different batches were carried out by single-crystal and powder X-ray diffraction methods. The ternary Ba8Li5.0(1)Ge41.0 phase crystallizes in the cubic type-I clathrate structure (space group Pm3̄n no. 223, a ≈ 10.80 Å), with the unit cell being substantially larger compared to the binary phase Ba8Ge43 (Ba8□3Ge43, a ≈ 10.63 Å). The expansion of the unit cell is the result of the Li atoms filling vacancies and substituting atoms in the Ge framework, with Li and Ge co-occupying one crystallographic (6c) site. As such, the Li atoms are situated in four-fold coordination environment surrounded by equidistant Ge atoms. Analysis of chemical bonding applying the electron density/electron localizability approach reveals ionic interaction of barium with the Li-Ge framework, while the lithium-germanium bonds are strongly polar covalent.
Collapse
Affiliation(s)
- Kowsik Ghosh
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| | - Alexander Ovchinnikov
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Michael Baitinger
- Max Plank Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Mitja Krnel
- Max Plank Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Ulrich Burkhardt
- Max Plank Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Yuri Grin
- Max Plank Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Svilen Bobev
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
| |
Collapse
|
2
|
Al-Fartoos MMR, Roy A, Mallick TK, Tahir AA. Advancing Thermoelectric Materials: A Comprehensive Review Exploring the Significance of One-Dimensional Nano Structuring. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2011. [PMID: 37446526 DOI: 10.3390/nano13132011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/29/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023]
Abstract
Amidst the global challenges posed by pollution, escalating energy expenses, and the imminent threat of global warming, the pursuit of sustainable energy solutions has become increasingly imperative. Thermoelectricity, a promising form of green energy, can harness waste heat and directly convert it into electricity. This technology has captivated attention for centuries due to its environmentally friendly characteristics, mechanical stability, versatility in size and substrate, and absence of moving components. Its applications span diverse domains, encompassing heat recovery, cooling, sensing, and operating at low and high temperatures. However, developing thermoelectric materials with high-performance efficiency faces obstacles such as high cost, toxicity, and reliance on rare-earth elements. To address these challenges, this comprehensive review encompasses pivotal aspects of thermoelectricity, including its historical context, fundamental operating principles, cutting-edge materials, and innovative strategies. In particular, the potential of one-dimensional nanostructuring is explored as a promising avenue for advancing thermoelectric technology. The concept of one-dimensional nanostructuring is extensively examined, encompassing various configurations and their impact on the thermoelectric properties of materials. The profound influence of one-dimensional nanostructuring on thermoelectric parameters is also thoroughly discussed. The review also provides a comprehensive overview of large-scale synthesis methods for one-dimensional thermoelectric materials, delving into the measurement of thermoelectric properties specific to such materials. Finally, the review concludes by outlining prospects and identifying potential directions for further advancements in the field.
Collapse
Affiliation(s)
- Mustafa Majid Rashak Al-Fartoos
- Solar Energy Research Group, Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall TR10 9FE, UK
| | - Anurag Roy
- Solar Energy Research Group, Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall TR10 9FE, UK
| | - Tapas K Mallick
- Solar Energy Research Group, Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall TR10 9FE, UK
| | - Asif Ali Tahir
- Solar Energy Research Group, Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall TR10 9FE, UK
| |
Collapse
|
3
|
Cherniushok O, Cardoso-Gil R, Parashchuk T, Knura R, Grin Y, Wojciechowski KT. Lone-Pair-Like Interaction and Bonding Inhomogeneity Induce Ultralow Lattice Thermal Conductivity in Filled β-Manganese-Type Phases. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:6389-6401. [PMID: 35937497 PMCID: PMC9344398 DOI: 10.1021/acs.chemmater.2c00915] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Finding a way to interlink heat transport with the crystal structure and order/disorder phenomena is crucial for designing materials with ultralow lattice thermal conductivity. Here, we revisit the crystal structure and explore the thermoelectric properties of several compounds from the family of the filled β-Mn-type phases M 2/n n+Ga6Te10 (M = Pb, Sn, Ca, Na, Na + Ag). The strongly disturbed thermal transport observed in the investigated materials originates from a three-dimensional Te-Ga network with lone-pair-like interactions, which results in large variations of the Ga-Te and M-Te interatomic distances and substantial anharmonic effects. In the particular case of NaAgGa6Te10, the additional presence of different cations leads to bonding inhomogeneity and strong structural disorder, resulting in a dramatically low lattice thermal conductivity (∼0.25 Wm-1 K-1 at 298 K), being the lowest among the reported β-Mn-type phases. This study offers a way to develop materials with ultralow lattice thermal conductivity by considering bonding inhomogeneity and lone-pair-like interactions.
Collapse
Affiliation(s)
- Oleksandr Cherniushok
- Thermoelectric
Research Laboratory, Department of Inorganic Chemistry, Faculty of
Materials Science and Ceramics, AGH University
of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland
| | - Raul Cardoso-Gil
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - Taras Parashchuk
- Thermoelectric
Research Laboratory, Department of Inorganic Chemistry, Faculty of
Materials Science and Ceramics, AGH University
of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland
| | - Rafal Knura
- Thermoelectric
Research Laboratory, Department of Inorganic Chemistry, Faculty of
Materials Science and Ceramics, AGH University
of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland
- Department
of Science, Graduate School of Science and Technology, Kumamoto University, 2 Chome-39-1 Kurokami, Chuo Ward, 860-8555 Kumamoto, Japan
| | - Yuri Grin
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - Krzysztof T. Wojciechowski
- Thermoelectric
Research Laboratory, Department of Inorganic Chemistry, Faculty of
Materials Science and Ceramics, AGH University
of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland
| |
Collapse
|
4
|
Sandemann J, Reardon H, Brummerstedt Iversen B. Temperature-dependent crystal structure investigation of 4f hybridized thermoelectric clathrate Ba 8-xCe xAu ySi 46-y. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:359-368. [PMID: 35695109 DOI: 10.1107/s205252062101310x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/09/2021] [Indexed: 06/15/2023]
Abstract
Thermoelectric materials allow for conversion of waste heat into electrical energy, and they represent a green solution for improving our energy efficiency. Inclusion of 4f electrons near the Fermi level may boost the Seebeck coefficient, which is essential for high thermoelectric performance. In this study, Ce was successfully substituted for Ba on the guest atom sites in the type-I clathrate Ba8-xCexAuySi46-y and the material was characterized using high-resolution synchrotron powder X-ray diffraction data measured from 100 K to 1000 K to investigate potential structural implications of the inclusion of a 4f element. The thermal expansion and bonding of the host structure are not affected by the presence of Ce, as seen from the linear coefficient of unit-cell thermal expansion of 7.30 (8) × 10-6 K-1 and the average host Debye temperature of 404 (7) K determined from the multi-temperature atomic displacement parameters, both of which are similar to values obtained for pure Ba8AuySi46-y. The anisotropic atomic displacement parameters on the guest atom site in the large clathrate cage populated by Ba surprisingly reveals isotropic behavior, which is different from all other clathrates reported in literature, and thus represents a unique host-guest bonding situation.
Collapse
Affiliation(s)
- Jonas Sandemann
- Center for Integrated Materials Research, Department of Chemistry and iNANO, Aarhus University, Aarhus, DK-8000, Denmark
| | - Hazel Reardon
- Center for Integrated Materials Research, Department of Chemistry and iNANO, Aarhus University, Aarhus, DK-8000, Denmark
| | - Bo Brummerstedt Iversen
- Center for Integrated Materials Research, Department of Chemistry and iNANO, Aarhus University, Aarhus, DK-8000, Denmark
| |
Collapse
|
5
|
Zhang X, Zhai P, Huang X, Morozov SI, Duan B, Li W, Chen G, Li G, Goddard WA. Deformation and Failure Mechanisms of Thermoelectric Type-I Clathrate Ba 8Au 6Ge 40. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4326-4334. [PMID: 35018776 DOI: 10.1021/acsami.1c22730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Type-I clathrate Ba8Au6Ge40, possessing an interesting structure stacked by polyhedrons, is a potential "phonon-glass, electron-crystal" thermoelectric material. However, the mechanical properties of Ba8Au6Ge40 vital for industrial applications have not been clarified. Here, we report the first density functional theory calculations of the intrinsic mechanical properties of thermoelectric clathrate Ba8Au6Ge40. Among the different loading directions, the {110}/⟨001⟩ shearing and ⟨110⟩ tension are the weakest, with strengths of 4.51 and 6.64 GPa, respectively. Under {110}/⟨001⟩ shearing, the Ge-Ge bonds undergo significant stretching and twisting, leading to a severe distortion of the tetrakaidecahedral cage, giving rise to the fast softening of the flank Au-Ge bonds. At a strain of 0.2655, the Au-Ge bonds suddenly break, resulting in the collapse of the cage and the failure of the material. Under a ⟨110⟩ tension, the stretching of the Ge-Ge bonds keeps accelerating the softening of the Au-Ge bonds in the top/bottom hexagons, which releases the stress and disables the structure. The Au-Ge bonds are more rigid, contributing two-thirds of the structural deformation resistance. This work provides a new insight to understand the failure mechanisms of type-I clathrates with varied framework constitutions, which should help inform the design of robust thermoelectric clathrate materials.
Collapse
Affiliation(s)
- Xiaolian Zhang
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Pengcheng Zhai
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Xiege Huang
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Sergey I Morozov
- Department of Physics of Nanoscale System, South Ural State University, Chelyabinsk 454080, Russia
| | - Bo Duan
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Wenjuan Li
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Gang Chen
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Guodong Li
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - William A Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| |
Collapse
|
6
|
Gunatilleke WDCB, Wong-Ng W, Zavalij PY, Zhang M, Chen YS, Nolas GS. Revealing uncommon transport in the previously unascertained very low cation clathrate-I Eu 2Ga 11Sn 35. CrystEngComm 2022. [DOI: 10.1039/d2ce01026g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the structure and electrical transport of single-crystal Eu2Ga11Sn35, the sole example of a very low cation concentration clathrate-I composition with atypical transport directly attributable to the structure and stoichiometry.
Collapse
Affiliation(s)
| | - Winnie Wong-Ng
- Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Peter Y. Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Mingjian Zhang
- ChemMatCARS, University of Chicago, Argonne, IL 60439, USA
| | - Yu-Sheng Chen
- ChemMatCARS, University of Chicago, Argonne, IL 60439, USA
| | - George S. Nolas
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
| |
Collapse
|
7
|
Feig M, Akselrud L, Motylenko M, Bobnar M, Wagler J, Kvashnina KO, Levytskyi V, Rafaja D, Leithe-Jasper A, Gumeniuk R. Valence fluctuations in the 3D + 3 modulated Yb 3Co 4Ge 13 Remeika phase. Dalton Trans 2021; 50:13580-13590. [PMID: 34515715 DOI: 10.1039/d1dt01972d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Yb3Co4Ge13 is the first example of a Remeika phase with a 3D + 3 [space group P4̄3n(α,0,0)000(0,α,0)000(0,0,α)000; a = 8.72328(1) Å, α = 0.4974(2)] modulated crystal structure. A slight shift of the composition towards higher Yb-content (i.e. Yb3.2Co4Ge12.8) leads to the disappearance of the satellite reflections and stabilization of the disordered primitive cubic [space group Pm3̄n, a = 8.74072(2) Å] Remeika prototype structure. The stoichiometric structurally modulated germanide is a metal with hole-like charge carriers, where Yb-ions are in a temperature-dependent intermediate valence state varying from +2.60 to +2.66 for the temperature range 85-293 K. The valence fluctuations have been investigated by means of temperature dependent X-ray absorption spectroscopy, magnetic susceptibility and thermopower measurements.
Collapse
Affiliation(s)
- Manuel Feig
- Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09596 Freiberg, Germany. .,Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Lev Akselrud
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany.,Ivan Franko National University of Lviv, Kyryla and Mefodiya Str. 6, UA-79005, Lviv, Ukraine
| | - Mykhaylo Motylenko
- Institut für Werkstoffwissenschaft, TU Bergakademie Freiberg, Gustav-Zeuner-Straße 5, 09599 Freiberg, Germany
| | - Matej Bobnar
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Jörg Wagler
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, Leipziger Straße 29, 09599 Freiberg, Germany
| | - Kristina O Kvashnina
- The Rossendorf Beamline at ESRF, CS 40220, 38043 Grenoble Cedex 9, France.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, P.O. Box 510119, 01314 Dresden, Germany
| | - Volodymyr Levytskyi
- Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09596 Freiberg, Germany.
| | - David Rafaja
- Institut für Werkstoffwissenschaft, TU Bergakademie Freiberg, Gustav-Zeuner-Straße 5, 09599 Freiberg, Germany
| | - Andreas Leithe-Jasper
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Roman Gumeniuk
- Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09596 Freiberg, Germany. .,Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| |
Collapse
|
8
|
Cardoso-Gil R, Zelenina I, Stahl QE, Bobnar M, Koželj P, Krnel M, Burkhardt U, Veremchuk I, Simon P, Carrillo-Cabrera W, Boström M, Grin Y. The Intermetallic Semiconductor ht-IrGa 3: a Material in the in-Transformation State. ACS MATERIALS AU 2021; 2:45-54. [PMID: 36855699 PMCID: PMC9928196 DOI: 10.1021/acsmaterialsau.1c00025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The compound IrGa3 was synthesized by direct reaction of the elements. It is formed as a high-temperature phase in the Ir-Ga system. Single-crystal X-ray diffraction analysis confirms the tetragonal symmetry (space group P42 /mnm, No. 136) with a = 6.4623(1) Å and c = 6.5688(2) Å and reveals strong disorder in the crystal structure, reflected in the huge values and anisotropy of the atomic displacement parameters. A model for the real crystal structure of ht-IrGa3 is derived by the split-position approach from the single-crystal X-ray diffraction data and confirmed by an atomic-resolution transmission electron microscopy study. Temperature-dependent electrical resistivity measurements evidence semiconductor behavior with a band gap of 30 meV. A thermoelectric characterization was performed for ht-IrGa3 and for the solid solution IrGa3-x Zn x .
Collapse
Affiliation(s)
- Raúl Cardoso-Gil
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany,E-mail for R.C-G.:
| | - Iryna Zelenina
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Quirin E. Stahl
- Institut
für Festkörper- und Materialphysik, TU Dresden, 01062 Dresden, Germany
| | - Matej Bobnar
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Primož Koželj
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Mitja Krnel
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Ulrich Burkhardt
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Igor Veremchuk
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Paul Simon
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Wilder Carrillo-Cabrera
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Magnus Boström
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany,E-mail for Yu.G.:
| |
Collapse
|
9
|
Kotsch M, Prots Y, Ormeci A, Senyshyn A, Kohout M, Grin Y. Bell–like [Ga
5
] clusters in Sr
3
Li
5
Ga
5
: synthesis, crystal structure and bonding analysis. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matthias Kotsch
- Chemische Metallkunde Max-Plank-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Yurii Prots
- Chemische Metallkunde Max-Plank-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Alim Ormeci
- Chemische Metallkunde Max-Plank-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Anatoliy Senyshyn
- Forschungsneutronenquelle Heinz Maier–Leibnitz (FRM II) Technische Universität München Lichtenbergstraße 1 85747 Garching b. München Germany
| | - Miroslav Kohout
- Chemische Metallkunde Max-Plank-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Yuri Grin
- Chemische Metallkunde Max-Plank-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| |
Collapse
|
10
|
Sichevych O, Flipo S, Ormeci A, Bobnar M, Akselrud L, Prots Y, Burkhardt U, Gumeniuk R, Leithe-Jasper A, Grin Y. Crystal Structure and Physical Properties of the Cage Compound Hf 2B 2-2δIr 5+δ. Inorg Chem 2020; 59:14280-14289. [PMID: 32946694 PMCID: PMC7586331 DOI: 10.1021/acs.inorgchem.0c02073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Hf2B2–2δIr5+δ crystallizes
with a new type of structure: space group Pbam, a = 5.6300(3) Å, b = 11.2599(5)
Å, and c = 3.8328(2) Å. Nearly 5% of the
boron pairs are randomly replaced by single iridium atoms (Ir5+δB2–2δ). From an analysis of
the chemical bonding, the crystal structure can be understood as a
three-dimensional framework stabilized by covalent two-atom B–B
and Ir–Ir as well as three-atom Ir–Ir–B and Ir–Ir–Ir
interactions. The hafnium atoms center 14-atom cavities and transfer
a significant amount of charge to the polyanionic boron–iridium
framework. This refractory boride displays moderate hardness and is
a Pauli paramagnet with metallic electrical resistivity, Seebeck coefficient,
and thermal conductivity. The metallic character of this system is
also confirmed by electronic structure calculations revealing 5.8
states eV–1 fu–1 at the Fermi
level. Zr2B2–2δIr5+δ is found to be isotypic with Hf2B2–2δIr5+δ, and both form a continuous solid solution. Hf2Ir5+δB2−2δ is a cage compound with a three-dimensional
anionic boron−iridium
framework composed of [B2Ir8] units with cavities
bearing the hafnium cations. Zr2Ir5+δB2−2δ is found to be isotypic with Hf2Ir5+δB2−2δ, and both form
a continuous solid solution.
Collapse
Affiliation(s)
- Olga Sichevych
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Sever Flipo
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany.,Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, Germany
| | - Alim Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Matej Bobnar
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Lev Akselrud
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Ulrich Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Roman Gumeniuk
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany.,Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, Germany
| | - Andreas Leithe-Jasper
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| |
Collapse
|
11
|
Kotsch M, Prots Y, Ormeci A, Bobnar M, Wagner FR, Senyshyn A, Grin Y. From Zintl to Wade: Ba
3
LiGa
5
– A Structure Pattern with Pyramidal Cluster Chains –[Ga
5
]
n
–. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Matthias Kotsch
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Yurii Prots
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Alim Ormeci
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Matej Bobnar
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
- Jožef Stefan Institute Jamova 39 SI1000 Ljubljana Slovenia
| | - Frank R. Wagner
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Anatoliy Senyshyn
- Forschungsneutronenquelle Heinz Maier‐Leibnitz (FRM II) Technische Universität München Lichtenbergstrasse 1 85747 Garching b. München Germany
| | - Yuri Grin
- Chemische Metallkunde Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| |
Collapse
|
12
|
Yan X, Bauer E, Rogl P, Bernardi J, Prokofiev A, Paschen S. Thermoelectric Properties and Stability of Nanocomposites Type I Clathrate Ba‐Cu‐Si with SiC. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xinlin Yan
- Institute of Solid State Physics Vienna University of Technology Wiedner Hauptstr. 8–10 1040 Vienna Austria
| | - Ernst Bauer
- Institute of Solid State Physics Vienna University of Technology Wiedner Hauptstr. 8–10 1040 Vienna Austria
| | - Peter Rogl
- Institute of Materials Chemistry and Research Vienna University Währingerstr. 42 1090 Vienna Austria
| | | | - Andrey Prokofiev
- Institute of Solid State Physics Vienna University of Technology Wiedner Hauptstr. 8–10 1040 Vienna Austria
| | - Silke Paschen
- Institute of Solid State Physics Vienna University of Technology Wiedner Hauptstr. 8–10 1040 Vienna Austria
| |
Collapse
|
13
|
Amon A, Svanidze E, Prots Y, Nicklas M, Burkhardt U, Ormeci A, Leithe-Jasper A, Grin Y. Y 4Be 33Pt 16- a non-centrosymmetric cage superconductor with multi-centre bonding in the framework. Dalton Trans 2020; 49:9362-9368. [PMID: 32584336 DOI: 10.1039/d0dt01374a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new ternary compound Y4Be33Pt16 was prepared from elements by arc melting, and its crystal structure was determined from single-crystal X-ray diffraction data (space group I4[combining macron]3d, a = 13.4849(3) Å). The material is the first representative of a new structure type of complex intermetallic compounds and reveals a cage-like crystal structure. Analysis of chemical bonding by means of the electron localizabilty approach indicates ionic interaction of yttrium with the rest of the crystal structure, characteristic for cage compounds, in particular for clathrates. In contrast to the mostly two-centre bonding in the framework of clathrates, the new compound is characterized by a multi-centre interaction within the framework, caused by the demand of the valence electrons in the system. The non-centrosymmetric material enters the superconducting state at TC = 0.9 K.
Collapse
Affiliation(s)
- Alfred Amon
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, Dresden 01187, Germany
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Schwarz U, Castillo R, Hübner JM, Wosylus A, Prots Y, Bobnar M, Grin Y. The untypical high-pressure Zintl phase SrGe6. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2019-0197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
The binary strontium germanide SrGe6 was synthesized at high-pressure high-temperature conditions of approximately 10 GPa and typically 1400 K before quenching to ambient conditions. At ambient pressure, SrGe6 decomposes in a monotropic fashion at T = 680(10) K into SrGe2 and Ge, indicating its metastable character. Single-crystal X-ray diffraction data indicate that the compound SrGe6 adopts a new monoclinic structure type comprising a unique three-dimensional framework of germanium atoms with unusual cages hosting the strontium cations. Quantum chemical analysis of the chemical bonding shows that the framework consists of three- and four- bonded germanium atoms yielding the precise electron count Sr[(4bGe0]4[(3b)Ge−]2 in accordance with the 8 − N rule and the Zintl concept. Conflicting with that, a pseudo-gap in the electronic density of states appears clearly below the Fermi level, and elaborate bonding analysis reveals additional Sr–Ge interactions in the concave coordination polyhedron of the strontium atoms.
Collapse
Affiliation(s)
- Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Rodrigo Castillo
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Julia M. Hübner
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Aron Wosylus
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Matej Bobnar
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40, 01187 Dresden , Germany
| |
Collapse
|
15
|
Owens-Baird B, Wang J, Wang SG, Chen YS, Lee S, Donadio D, Kovnir K. III-V Clathrate Semiconductors with Outstanding Hole Mobility: Cs 8In 27Sb 19 and A8Ga 27Sb 19 ( A = Cs, Rb). J Am Chem Soc 2020; 142:2031-2041. [PMID: 31894979 DOI: 10.1021/jacs.9b12351] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Three novel unconventional clathrates with unprecedented III-V semiconducting frameworks have been synthesized: Cs8In27Sb19, Cs8Ga27Sb19, and Rb8Ga27Sb19. These clathrates represent the first examples of tetrel-free clathrates that are completely composed of main group elements. All title compounds crystallize in an ordered superstructure of clathrate-I in the Ia3̅ space group (No. 206; Z = 8). In the clathrate framework, a full ordering of {Ga or In} and Sb is observed by a combination of high-resolution synchrotron single-crystal and powder X-ray diffraction techniques. Density functional theory (DFT) calculations show that all three clathrates are energetically stable with relaxed lattice constants matching the experimental data. Due to the complexity of the crystal structure composed of heavy elements, the reported clathrates exhibit ultralow thermal conductivities of less than 1 W·m-1·K-1 at room temperature. All compounds are predicted and experimentally confirmed to be narrow-bandgap p-type semiconductors with high Seebeck thermopower values, up to 250 μV·K-1 at 300 K for Cs8In27Sb19. The latter compound shows carrier concentrations and mobilities, 1.42 × 1015 cm-3 and 880 cm2 ·V-1·s-1, which are on par with the values for parent binary InSb, one of the best electronic semiconductors. The high hole carrier mobility is uncommon for complex bulk materials and a highly desirable trait, opening ways to design semiconducting materials based on tunable III-V clathrates.
Collapse
Affiliation(s)
- Bryan Owens-Baird
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States.,Ames Laboratory , U.S. Department of Energy , Ames , Iowa 50011 , United States
| | - Jian Wang
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States.,Ames Laboratory , U.S. Department of Energy , Ames , Iowa 50011 , United States.,Department of Chemistry , Wichita State University , Wichita , Kansas 67260 , United States
| | - Suyin Grass Wang
- NSF's ChemMatCARS, Center for Advanced Radiation Sources, Argonne National Laboratory , The University of Chicago , Lemont , Illinois 60439 , United States
| | - Yu-Sheng Chen
- NSF's ChemMatCARS, Center for Advanced Radiation Sources, Argonne National Laboratory , The University of Chicago , Lemont , Illinois 60439 , United States
| | - Shannon Lee
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States.,Ames Laboratory , U.S. Department of Energy , Ames , Iowa 50011 , United States
| | - Davide Donadio
- Department of Chemistry , University of California, Davis , Davis , California 95616 , United States
| | - Kirill Kovnir
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States.,Ames Laboratory , U.S. Department of Energy , Ames , Iowa 50011 , United States
| |
Collapse
|
16
|
Inhomogeneity and anisotropy of chemical bonding and thermoelectric properties of materials. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.12.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
17
|
Dopilka A, Zhao R, Weller JM, Bobev S, Peng X, Chan CK. Experimental and Computational Study of the Lithiation of Ba 8Al yGe 46- y Based Type I Germanium Clathrates. ACS APPLIED MATERIALS & INTERFACES 2018; 10:37981-37993. [PMID: 30360052 DOI: 10.1021/acsami.8b11509] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, we investigate the electrochemical properties of Ba8Al yGe46- y ( y = 0, 4, 8, 12, 16) clathrates prepared by arc-melting. These materials have cage-like structures with large cavity volumes and can also have vacancies on the Ge framework sites, features which may be used to accommodate Li. Herein, a structural, electrochemical, and theoretical investigation is performed to explore these materials as anodes in Li-ion batteries, including analysis of the effect of the Al content and framework vacancies on the observed electrochemical properties. Single-crystal X-ray diffraction (XRD) studies indicate the presence of vacancies at the 6c site of the clathrate framework as the Al content decreases, and the lithiation potentials and capacities are observed to decrease as the degree of Al substitution increases. From XRD, electrochemical, and transmission electron microscopy analysis, we find that all of the clathrate compositions undergo two-phase reactions to form Li-rich amorphous phases. This is different from the behavior observed in Si clathrate analogues, where there is no amorphous phase transition during electrochemical lithiation nor discernible changes to the lattice constant of the bulk structure. From density functional theory calculations, we find that Li insertion into the three framework vacancies in Ba8Ge43 is energetically favorable, with a calculated lithiation voltage of 0.77 V versus Li/Li+. However, the calculated energy barrier for Li diffusion between vacancies and around Ba guest atoms is at least 1.6 eV, which is too high for significant room-temperature diffusion. These results show that framework vacancies in the Ge clathrate structure are unlikely to significantly contribute to lithiation processes unless the Ba guest atoms are absent, but suggest that guest atom vacancies could open diffusion paths for Li, allowing for empty framework positions to be occupied.
Collapse
Affiliation(s)
- Andrew Dopilka
- Materials Science and Engineering, School for Engineering of Matter, Transport and Energy , Arizona State University , P.O. Box 876106, Tempe , Arizona 85827 , United States
| | - Ran Zhao
- School of Molecular Sciences , Arizona State University , P.O. Box 871604, Tempe , Arizona 85287 , United States
| | - J Mark Weller
- Materials Science and Engineering, School for Engineering of Matter, Transport and Energy , Arizona State University , P.O. Box 876106, Tempe , Arizona 85827 , United States
| | - Svilen Bobev
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Xihong Peng
- College of Integrative Sciences and Arts , Arizona State University Polytechnic Campus , Mesa , Arizona 85212 , United States
| | - Candace K Chan
- Materials Science and Engineering, School for Engineering of Matter, Transport and Energy , Arizona State University , P.O. Box 876106, Tempe , Arizona 85827 , United States
| |
Collapse
|
18
|
Sassi S, Candolfi C, Delaizir G, Migot S, Ghanbaja J, Gendarme C, Dauscher A, Malaman B, Lenoir B. Crystal Structure and Transport Properties of the Homologous Compounds (PbSe) 5(Bi 2Se 3) 3m (m = 2, 3). Inorg Chem 2017; 57:422-434. [PMID: 29257669 DOI: 10.1021/acs.inorgchem.7b02656] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report on a detailed investigation of the crystal structure and transport properties in a broad temperature range (2-723 K) of the homologous compounds (PbSe)5(Bi2Se3)3m for m = 2, 3. Single-crystal X-ray diffraction data indicate that the m = 2, 3 compounds crystallize in the monoclinic space groups C2/m (No. 12) and P21/m (No. 11), respectively. In agreement with diffraction data, high-resolution transmission electron microscopy analyses carried out on single crystals show that the three-dimensional crystal structures are built from alternating Pb-Se and m Bi-Se layers stacked along the a axis in both compounds. Scanning electron microcopy and electron-probe microanalyses reveal deviations from the nominal stoichiometry, suggesting a domain of existence in the pseudo binary phase diagram at 873 K. The complex atomic-scale structures of these compounds lead to very low lattice thermal conductivities κL that approach the glassy limit at high temperatures. A comparison of the κL values across this series unveiled an unexpected increase with increasing m from m = 1 to m = 3, in contrast to the expectation that increasing the structural complexity should tend to lower the thermal transport. This result points to a decisive role played by the Pb-Se/Bi-Se interfaces in limiting κL in this series. Both compounds behave as heavily doped n-type semiconductors with relatively low electrical resistivity and thermopower values. As a result, moderate peak ZT values of 0.25 and 0.20 at 700 K were achieved in the m = 2, 3 compounds, respectively. The inherent poor ability of these structures to conduct heat suggests that these homologous compounds may show interesting thermoelectric properties when properly optimized by extrinsic dopants.
Collapse
Affiliation(s)
- Selma Sassi
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Christophe Candolfi
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Gaëlle Delaizir
- Sciences des Procédés Céramique et de Traitement de Surface (SPCTS), UMR CNRS 7315-Univsersité de Limoges , Limoges, France
| | - Sylvie Migot
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Jaafar Ghanbaja
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Christine Gendarme
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Anne Dauscher
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Bernard Malaman
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| | - Bertrand Lenoir
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine , 2 allée André Guinier-Campus ARTEM, 54011 Nancy, France
| |
Collapse
|
19
|
Grin Y, Pöttgen R, Ormeci A, Kremer RK, Wagner FE. Intermediate-Valence Intermetallic Phase YbIn 1-xAu 1+x(x = 0-0.3)†. CRYSTAL RESEARCH AND TECHNOLOGY 2017. [DOI: 10.1002/crat.201700101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Straße 40 01187 Dresden Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie; Universität Münster; Corrensstraße 30 D-48149 Münster Germany
| | - Alim Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Straße 40 01187 Dresden Germany
| | - Reinhard K. Kremer
- Max-Planck-Institut für Festkörperforschung; Heisenbergstraße 1 D-70569 Stuttgart Germany
| | - Friedrich E. Wagner
- Physik-Department E15; Technische Universität München; James-Franck-Straße D-85748 Garching Germany
| |
Collapse
|
20
|
Lory PF, Pailhès S, Giordano VM, Euchner H, Nguyen HD, Ramlau R, Borrmann H, Schmidt M, Baitinger M, Ikeda M, Tomeš P, Mihalkovič M, Allio C, Johnson MR, Schober H, Sidis Y, Bourdarot F, Regnault LP, Ollivier J, Paschen S, Grin Y, de Boissieu M. Direct measurement of individual phonon lifetimes in the clathrate compound Ba 7.81Ge 40.67Au 5.33. Nat Commun 2017; 8:491. [PMID: 28887470 PMCID: PMC5591192 DOI: 10.1038/s41467-017-00584-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 07/10/2017] [Indexed: 11/09/2022] Open
Abstract
Engineering lattice thermal conductivity requires to control the heat carried by atomic vibration waves, the phonons. The key parameter for quantifying it is the phonon lifetime, limiting the travelling distance, whose determination is however at the limits of instrumental capabilities. Here, we show the achievement of a direct quantitative measurement of phonon lifetimes in a single crystal of the clathrate Ba7.81Ge40.67Au5.33, renowned for its puzzling ‘glass-like’ thermal conductivity. Surprisingly, thermal transport is dominated by acoustic phonons with long lifetimes, travelling over distances of 10 to 100 nm as their wave-vector goes from 0.3 to 0.1 Å−1. Considering only low-energy acoustic phonons, and their observed lifetime, leads to a calculated thermal conductivity very close to the experimental one. Our results challenge the current picture of thermal transport in clathrates, underlining the inability of state-of-the-art simulations to reproduce the experimental data, thus representing a crucial experimental input for theoretical developments. Phonon lifetime is a fundamental parameter of thermal transport however its determination is challenging. Using inelastic neutron scattering and the neutron resonant spin-echo technique, Lory et al. determine the acoustic phonon lifetime in a single crystal of clathrate Ba7.81Ge40.67Au5.33.
Collapse
Affiliation(s)
- Pierre-François Lory
- Institut Laue-Langevin, Grenoble, F-38000, France.,University Grenoble Alpes, CNRS, Grenoble-INP, SIMaP, F-38000, Grenoble, France
| | - Stéphane Pailhès
- University Lyon, University Claude Bernard Lyon 1, CNRS, Institute of Light and Matter, F-69622, Villeurbanne, France.
| | - Valentina M Giordano
- University Lyon, University Claude Bernard Lyon 1, CNRS, Institute of Light and Matter, F-69622, Villeurbanne, France
| | - Holger Euchner
- Institute of Materials Science and Technology, Vienna University of Technology, 1040, Vienna, Austria
| | - Hong Duong Nguyen
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Reiner Ramlau
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Marcus Schmidt
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Michael Baitinger
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Matthias Ikeda
- Institute of Solid State Physics, Vienna University of Technology, 1040, Vienna, Austria
| | - Petr Tomeš
- Institute of Solid State Physics, Vienna University of Technology, 1040, Vienna, Austria
| | - Marek Mihalkovič
- Institute of Physics, Slovak Academy of Sciences, 84511, Bratislava, Slovakia
| | - Céline Allio
- Physikalisches Institut, Goethe-University, 60438, Frankfurt, Germany
| | | | - Helmut Schober
- Institut Laue-Langevin, Grenoble, F-38000, France.,University Grenoble Alpes, UFR PhITEM, F-38000, Grenoble, France
| | - Yvan Sidis
- Laboratoire Léon Brillouin, CNRS, CEA, UMR-12, 91191, Gif sur Yvette, France
| | | | | | | | - Silke Paschen
- Institute of Solid State Physics, Vienna University of Technology, 1040, Vienna, Austria
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany
| | - Marc de Boissieu
- University Grenoble Alpes, CNRS, Grenoble-INP, SIMaP, F-38000, Grenoble, France.
| |
Collapse
|
21
|
Structural and Electrical Properties Characterization of Sb1.52Bi0.48Te3.0 Melt-Spun Ribbons. CRYSTALS 2017. [DOI: 10.3390/cryst7060172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
22
|
Celania C, Smetana V, Provino A, Pecharsky V, Manfrinetti P, Mudring AV. R3Au9Pn (R = Y, Gd–Tm; Pn = Sb, Bi): A Link between Cu10Sn3 and Gd14Ag51. Inorg Chem 2017; 56:7247-7256. [DOI: 10.1021/acs.inorgchem.7b00898] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chris Celania
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department
of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Volodymyr Smetana
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department
of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Alessia Provino
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, University of Genova, Via Dodecaneso
31, 16146 Genova, Italy
- Institute SPIN-CNR, Corso Perrone 24, 16152 Genova, Italy
| | - Vitalij Pecharsky
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department
of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Pietro Manfrinetti
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, University of Genova, Via Dodecaneso
31, 16146 Genova, Italy
- Institute SPIN-CNR, Corso Perrone 24, 16152 Genova, Italy
| | - Anja-Verena Mudring
- The Ames Laboratory,
U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, United States
- Department
of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| |
Collapse
|
23
|
Zhang H, Peng W, Mu G, Hu T, Huang F, Xie X. Synthesis, Structure, and Properties of Clathrate Si30.3(8)P15.7(8)Se7.930(3). Chemistry 2017; 23:9505-9516. [DOI: 10.1002/chem.201700972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Hui Zhang
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Wei Peng
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Gang Mu
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Tao Hu
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Fuqiang Huang
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of Ceramics InstitutionChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P.R. China
| | - Xiaoming Xie
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| |
Collapse
|
24
|
Dolyniuk J, Whitfield PS, Lee K, Lebedev OI, Kovnir K. Controlling superstructural ordering in the clathrate-I Ba 8M 16P 30 (M = Cu, Zn) through the formation of metal-metal bonds. Chem Sci 2017; 8:3650-3659. [PMID: 28580103 PMCID: PMC5437377 DOI: 10.1039/c7sc00354d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/14/2017] [Indexed: 11/25/2022] Open
Abstract
Order-disorder-order phase transitions in the clathrate-I Ba8Cu16P30 were induced and controlled by aliovalent substitutions of Zn into the framework. Unaltered Ba8Cu16P30 crystallizes in an ordered orthorhombic (Pbcn) clathrate-I superstructure that maintains complete segregation of metal and phosphorus atoms over 23 different crystallographic positions in the clathrate framework. The driving force for the formation of this Pbcn superstructure is the avoidance of Cu-Cu bonds. This superstructure is preserved upon aliovalent substitution of Zn for Cu in Ba8Cu16-x Zn x P30 with 0 < x < 1.6 (10% Zn/Mtotal), but vanishes at greater substitution concentrations. Higher Zn concentrations (up to 35% Zn/Mtotal) resulted in the additional substitution of Zn for P in Ba8M16+y P30-y (M = Cu, Zn) with 0 ≤ y ≤ 1. This causes the formation of Cu-Zn bonds in the framework, leading to a collapse of the orthorhombic superstructure into the more common cubic subcell of clathrate-I (Pm3n). In the resulting cubic phases, each clathrate framework position is jointly occupied by three different elements: Cu, Zn, and P. Detailed structural characterization of the Ba-Cu-Zn-P clathrates-I via single crystal X-ray diffraction, joint synchrotron X-ray and neutron powder diffractions, pair distribution function analysis, electron diffraction and high-resolution electron microscopy, along with elemental analysis, indicates that local ordering is present in the cubic clathrate framework, suggesting the evolution of Cu-Zn bonds. For the compounds with the highest Zn content, a disorder-order transformation is detected due to the formation of another superstructure with trigonal symmetry and Cu-Zn bonds in the clathrate-I framework. It is shown that small changes in the composition, synthesis, and crystal structure have significant impacts on the structural and transport properties of Zn-substituted Ba8Cu16P30.
Collapse
Affiliation(s)
- J Dolyniuk
- Department of Chemistry , University of California , Davis , One Shields Avenue , Davis , CA 95616 , USA .
| | - P S Whitfield
- Chemical and Engineering Materials Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37830 , USA
| | - K Lee
- Department of Chemistry , University of California , Davis , One Shields Avenue , Davis , CA 95616 , USA .
| | - O I Lebedev
- Laboratoire CRISMAT , ENSICAEN , CNRS UMR 6508 , 6 Boulevard du Mareéchal Juin , F-14050 Caen , France
| | - K Kovnir
- Department of Chemistry , University of California , Davis , One Shields Avenue , Davis , CA 95616 , USA .
| |
Collapse
|
25
|
Böhme B, Wei K, Bobnar M, Prots Y, Burkhardt U, Baitinger M, Nolas GS, Grin Y. A type-II clathrate with a Li-Ge framework. Z KRIST-CRYST MATER 2017. [DOI: 10.1515/zkri-2017-2046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractNa
Collapse
|
26
|
Böhme B, Bobnar M, Ormeci A, Peters S, Schnelle W, Baitinger M, Grin Y. Type-I silicon clathrates containing lithium. Z KRIST-CRYST MATER 2017. [DOI: 10.1515/zkri-2016-1983] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe intermetallic phase [Li
Collapse
|
27
|
Synthesis and structures of type-I clathrates: Rb6Na2Ge44.89(1), Cs6Na2Zn4Ge42 and Cs6.40(1)Na1.60(1)Ga8Ge38. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.07.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
28
|
Prokofiev A, Svagera R, Waas M, Weil M, Bernardi J, Paschen S. Mechanism of Rare Earth Incorporation and Crystal Growth of Rare Earth Containing Type-I Clathrates. CRYSTAL GROWTH & DESIGN 2016; 16:25-33. [PMID: 26823658 PMCID: PMC4718404 DOI: 10.1021/acs.cgd.5b00461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 12/02/2015] [Indexed: 06/05/2023]
Abstract
Type-I clathrates possess extremely low thermal conductivities, a property that makes them promising materials for thermoelectric applications. The incorporation of cerium into one such clathrate has recently been shown to lead to a drastic enhancement of the thermopower, another property determining the thermoelectric efficiency. Here we explore the mechanism of the incorporation of rare earth elements into type-I clathrates. Our investigation of the crystal growth and the composition of the phase Ba8-x RE x TM y Si46-y (RE = rare earth element; TM = Au, Pd, Pt) reveals that the RE content x is mainly governed by two factors, the free cage space and the electron balance.
Collapse
Affiliation(s)
- Andrey Prokofiev
- Institute
of Solid State Physics, Vienna University
of Technology, Wiedner
Hauptstrasse 8-10, Vienna 1040, Austria
| | - Robert Svagera
- Institute
of Solid State Physics, Vienna University
of Technology, Wiedner
Hauptstrasse 8-10, Vienna 1040, Austria
| | - Monika Waas
- Institute
of Solid State Physics, Vienna University
of Technology, Wiedner
Hauptstrasse 8-10, Vienna 1040, Austria
| | - Matthias Weil
- Institute
of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164-SC, 1060 Vienna, Austria
| | | | - Silke Paschen
- Institute
of Solid State Physics, Vienna University
of Technology, Wiedner
Hauptstrasse 8-10, Vienna 1040, Austria
| |
Collapse
|
29
|
Zhang H, Mu G, Huang F, Xie X. New clathrates of Rb7.50(1)Tl0.50(1)Ge46and K7.62(1)Tl0.38(1)Ge45.34(3). RSC Adv 2016. [DOI: 10.1039/c6ra14614g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rb7.50(1)Tl0.50(1)Ge46and K7.62(1)Tl0.38(1)Ge45.34(3)are synthesized and characterized.
Collapse
Affiliation(s)
- Hui Zhang
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Gang Mu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
| |
Collapse
|
30
|
Conze S, Veremchuk I, Reibold M, Matthey B, Michaelis A, Grin Y, Kinski I. Magnéli phases Ti4O7 and Ti8O15 and their carbon nanocomposites via the thermal decomposition-precursor route. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.04.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
31
|
Aydemir U, Candolfi C, Ormeci A, Baitinger M, Burkhardt U, Oeschler N, Steglich F, Grin Y. Electronic band structure and low-temperature transport properties of the type-I clathrate Ba8Ni(x)Ge(46-x-y□y). Dalton Trans 2015; 44:7524-37. [PMID: 25805335 DOI: 10.1039/c4dt03827d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the evolution of the low-temperature thermodynamic, galvanomagnetic and thermoelectric properties of the type-I clathrate Ba8Ni(x)Ge(46-x-y□y) with the Ni concentration studied on polycrystalline samples with 0.0 ≤ x ≤ 6.0 by means of specific heat, Hall effect, electrical resistivity, thermopower and thermal conductivity measurements in the 2-350 K temperature range and supported by first-principles calculations. The experimental results evidence a 2a × 2a × 2a supercell described in the space group Ia3d for x ≤ 1.0 and a primitive unit cell a × a × a (space group Pm3n) above this Ni content. This concentration also marks the limit between a regime where both electrons and holes contribute to the electrical conduction (x ≤ 1.0) and a conventional, single-carrier regime (x > 1.0). This evolution is traced by the variations in the thermopower and Hall effect with x. In agreement with band structure calculations, increasing the Ni content drives the system from a nearly-compensated semimetallic state (x = 0.0) towards a narrow-band-gap semiconducting state (x = 4.0). A crossover from an n-type to a p-type conduction occurs when crossing the x = 4.0 concentration i.e. for x = 4.1. The solid solution Ba8Ni(x)Ge(46-x-y□y) therefore provides an excellent experimental platform to probe the evolution of the peculiar properties of the parent type-I clathrate Ba8Ge43□3 upon Ge/Ni substitution and filling up of the vacancies, which might be universal among the ternary systems at low substitution levels.
Collapse
Affiliation(s)
- U Aydemir
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Wang J, Lee K, Kovnir K. Synthesis, Crystal, and Electronic Structure of Ba3Sb2Q7(Q= S, Se). Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
33
|
|
34
|
Castillo R, Schnelle W, Bobnar M, Burkhardt U, Böhme B, Baitinger M, Schwarz U, Grin Y. The Clathrate Ba8-xSi46Revisited: Preparation Routes, Electrical and Thermal Transport Properties. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
35
|
Zhang H, Li W, Xu X, Mu G, Xie X, Huang F. Structure and properties of type-II clathrate Cs8Na16−xTlxGe136. Dalton Trans 2015; 44:16937-45. [DOI: 10.1039/c5dt02766g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The type-II clathrate of Cs8Na16−xTlxGe136was synthesized.
Collapse
Affiliation(s)
- Hui Zhang
- CAS Key Laboratory of Materials for Energy Conversion and State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Wei Li
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Xuguang Xu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Gang Mu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Fuqiang Huang
- CAS Key Laboratory of Materials for Energy Conversion and State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| |
Collapse
|
36
|
Zhang H, Xu X, Li W, Mu G, Huang FQ, Xie XM. Type-I clathrates of K7.69(2)Cu2.94(6)Ge43.06(6)and Rb8Ag2.79(4)Ge43.21(4). RSC Adv 2015. [DOI: 10.1039/c5ra09382a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Type-I clathrates of K7.69(2)Cu2.94(6)Ge43.06(6)and Rb8Ag2.79(4)Ge43.21(4)are successfully synthesized.
Collapse
Affiliation(s)
- Hui Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
| | - Xuguang Xu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Wei Li
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Gang Mu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Fu-Qiang Huang
- CAS Key Laboratory of Materials for Energy Conversion
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
| | - Xiao-Ming Xie
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| |
Collapse
|
37
|
Castillo R, Carrillo-Cabrera W, Schwarz U, Grin Y. Classical and Nonclassical Germanium Environments in High-Pressure BaGe5. Inorg Chem 2014; 54:1019-25. [DOI: 10.1021/ic502396p] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rodrigo Castillo
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Wilder Carrillo-Cabrera
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| |
Collapse
|
38
|
Aydemir U, Candolfi C, Ormeci A, Baitinger M, Oeschler N, Steglich F, Grin AY. High temperature thermoelectric properties of the type-I clathrate Ba8NixGe46-x-y□y. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:485801. [PMID: 25373324 DOI: 10.1088/0953-8984/26/48/485801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polycrystalline samples of the type-I clathrate Ba(8)Ni(x)Ge(46-x-y)□(y) were synthesized for 0.2 ⩽ x ⩽ 3.5 by melt quenching and for 3.5<x ⩽ 6.0 by melting with subsequent annealing at 700 °C. The maximum Ni content in the clathrate framework at this temperature was found to be x ≈ 4.2 atoms per unit cell. Thermoelectric and thermodynamic properties of the type-I clathrate were investigated from 300 to 700 K by means of electrical resistivity, thermopower, thermal conductivity and specific heat measurements. As the Ni content increases, the electronic properties gradually evolve from a metallic character (x < 3.5) towards a highly doped semiconducting state (x ⩾ 3.5). Below x ≈ 4.0 transport is dominated by electrons, while further addition of Ni (x ≈ 4.2) switches the electrical conduction to p-type. Maximum value of the dimensionless thermoelectric figure of merit ZT ≈ 0.2 was achieved at 500 K and 650 K for x ≈ 2.0 and x ≈ 3.8, respectively.
Collapse
Affiliation(s)
- U Aydemir
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul 34450, Turkey
| | | | | | | | | | | | | |
Collapse
|
39
|
Akselrud L, Wosylus A, Castillo R, Aydemir U, Prots Y, Schnelle W, Grin Y, Schwarz U. BaGe6 and BaGe6-x: Incommensurately Ordered Vacancies as Electron Traps. Inorg Chem 2014; 53:12699-705. [DOI: 10.1021/ic5021065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lev Akselrud
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Aron Wosylus
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Rodrigo Castillo
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Umut Aydemir
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| |
Collapse
|
40
|
Yubuta K, Mori T, Leithe-Jasper A, Borrmann H, Grin Y, Okada S, Shishido T. Intergrowth structure of α-phase in β-type TmAlB4 compound studied by high-angle annular detector dark-field scanning transmission electron microscopy. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2014.07.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
41
|
Charkin DO, Demchyna R, Prots Y, Borrmann H, Burkhardt U, Schwarz U, Schnelle W, Plokhikh IV, Kazakov SM, Abakumov AM, Batuk D, Verchenko VY, Tsirlin AA, Curfs C, Grin Y, Shevelkov AV. Two New Arsenides, Eu7Cu44As23 and Sr7Cu44As23, With a New Filled Variety of the BaHg11 Structure. Inorg Chem 2014; 53:11173-84. [PMID: 25265469 DOI: 10.1021/ic5017615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitri O. Charkin
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Roman Demchyna
- National University of Forestry and Wood Technology of Ukraine, Lviv, Ukraine
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Ulrich Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Igor V. Plokhikh
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Sergey M. Kazakov
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Artem M. Abakumov
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- EMAT, University of Antwerp, Antwerp, Belgium
| | | | - Valery Yu. Verchenko
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
| | | | - Caroline Curfs
- European Synchrotron Radiation Facility, Grenoble, France
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | | |
Collapse
|
42
|
Palasyuk A, Grin Y, Miller GJ. Turning Gold into “Diamond”: A Family of Hexagonal Diamond-Type Au-Frameworks Interconnected by Triangular Clusters in the Sr–Al–Au System. J Am Chem Soc 2014; 136:3108-17. [DOI: 10.1021/ja411150e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Andriy Palasyuk
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Yuri Grin
- Max-Planck-Institut
für Chemische Physik fester Stoffe, Dresden, Germany
| | - Gordon J. Miller
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011
| |
Collapse
|
43
|
Das Zintl-Klemm-Konzept auf dem Prüfstand: eine theoretische und experimentelle Ladungsdichtestudie an der Zintl-Phase CaSi. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308888] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
44
|
Kurylyshyn IM, Fässler TF, Fischer A, Hauf C, Eickerling G, Presnitz M, Scherer W. Probing the Zintl-Klemm concept: a combined experimental and theoretical charge density study of the Zintl phase CaSi. Angew Chem Int Ed Engl 2014; 53:3029-32. [PMID: 24519852 DOI: 10.1002/anie.201308888] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Indexed: 11/12/2022]
Abstract
The nature of the chemical bonds in CaSi, a textbook example of a Zintl phase, was investigated for the first time by means of a combined experimental and theoretical charge density analysis to test the validity of the Zintl-Klemm concept. The presence of covalent Si-Si interactions, which were shown by QTAIM analysis, supports this fundamental bonding concept. However, the use of an experimental charge density study and theoretical band structure analyses give clear evidence that the cation-anion interaction cannot be described as purely ionic, but also has partially covalent character. Integrated QTAIM atomic charges of the atoms contradict the original Zintl-Klemm concept and deliver a possible explanation for the unexpected metallic behavior of CaSi.
Collapse
Affiliation(s)
- Iryna M Kurylyshyn
- Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching (Germany)
| | | | | | | | | | | | | |
Collapse
|
45
|
Duong Nguyen H, Prots Y, Schnelle W, Böhme B, Baitinger M, Paschen S, Grin Y. Preparation, Crystal Structure and Physical Properties of the Superconducting Cage Compound Ba3Ge16Ir4. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Alarcón Villaseca S, Kandaskalov D, Gaudry É, Armbrüster M. Chemical Bonding in Zinc-based Intermetallic Compounds with the CuTi or the CsCl Type of Structure. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300583] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
47
|
Solid State Chemistry of Clathrate Phases: Crystal Structure, Chemical Bonding and Preparation Routes. THE PHYSICS AND CHEMISTRY OF INORGANIC CLATHRATES 2014. [DOI: 10.1007/978-94-017-9127-4_2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
48
|
Zhang H, Baitinger M, Fang L, Schnelle W, Borrmann H, Burkhardt U, Ormeci A, Zhao JT, Grin Y. Synthesis and Properties of Type-I Clathrate Phases Rb8–x–tKx□tAuyGe46–y. Inorg Chem 2013; 52:9720-6. [DOI: 10.1021/ic3024315] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H. Zhang
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
- Key Laboratory
of Transparent Opto-Functional Inorganic Materials, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - M. Baitinger
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - L. Fang
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
- Key Laboratory of Nonferrous Materials and New Processing
Technology, Ministry of Education, Guilin University of Technology, 12 Jiangan Road, Qixing, Guilin, Guangxi,
China
| | - W. Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - H. Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - U. Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - A. Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - J. T. Zhao
- Key Laboratory
of Transparent Opto-Functional Inorganic Materials, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Yu. Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| |
Collapse
|
49
|
Fulmer J, Lebedev OI, Roddatis VV, Kaseman DC, Sen S, Dolyniuk JA, Lee K, Olenev AV, Kovnir K. Clathrate Ba8Au16P30: the "gold standard" for lattice thermal conductivity. J Am Chem Soc 2013; 135:12313-23. [PMID: 23862668 DOI: 10.1021/ja4052679] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel clathrate phase, Ba8Au16P30, was synthesized from its elements. High-resolution powder X-ray diffraction and transmission electron microscopy were used to establish the crystal structure of the new compound. Ba8Au16P30 crystallizes in an orthorhombic superstructure of clathrate-I featuring a complete separation of gold and phosphorus atoms over different crystallographic positions, similar to the Cu-containing analogue, Ba8Cu16P30. Barium cations are trapped inside the large polyhedral cages of the gold-phosphorus tetrahedral framework. X-ray diffraction indicated that one out of 15 crystallographically independent phosphorus atoms appears to be three-coordinate. Probing the local structure and chemical bonding of phosphorus atoms with (31)P solid-state NMR spectroscopy confirmed the three-coordinate nature of one of the phosphorus atomic positions. High-resolution high-angle annular dark-field scanning transmission electron microscopy indicated that the clathrate Ba8Au16P30 is well-ordered on the atomic scale, although numerous twinning and intergrowth defects as well as antiphase boundaries were detected. The presence of such defects results in the pseudo-body-centered-cubic diffraction patterns observed in single-crystal X-ray diffraction experiments. NMR and resistivity characterization of Ba8Au16P30 indicated paramagnetic metallic properties with a room-temperature resistivity of 1.7 mΩ cm. Ba8Au16P30 exhibits a low total thermal conductivity (0.62 W m(-1) K(-1)) and an unprecedentedly low lattice thermal conductivity (0.18 W m(-1) K(-1)) at room temperature. The values of the thermal conductivity for Ba8Au16P30 are significantly lower than the typical values reported for solid crystalline compounds. We attribute such low thermal conductivity values to the presence of a large number of heavy atoms (Au) in the framework and the formation of multiple twinning interfaces and antiphase defects, which are effective scatterers of heat-carrying phonons.
Collapse
Affiliation(s)
- James Fulmer
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Feng XJ, Prots Y, Schmidt MP, Hoffmann S, Veremchuk I, Schnelle W, Burkhardt U, Zhao JT, Grin Y. Synthesis, structure, and properties of two Zintl phases around the composition SrLiAs. Inorg Chem 2013; 52:8971-8. [PMID: 23863037 DOI: 10.1021/ic401166v] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two atomic arrangements were found near the equiatomic composition in the strontium-lithium-arsenic system. Orthorhombic o-SrLiAs was synthesized by reaction of elemental components at 950 °C, followed by annealing at 800 °C and subsequent quenching in water. The hexagonal modification h-SrLi(1-x)As was obtained from annealing of o-SrLiAs at 550 °C in dynamic vacuum. The structures of both phases were determined by single-crystal X-ray diffraction: o-SrLiAs, structure type TiNiSi, space group Pnma, Pearson symbol oP12, a = 7.6458(2) Å, b = 4.5158(1) Å, c = 8.0403(3) Å, V = 277.61(2) Å(3), R(F) = 0.028 for 558 reflections; h-SrLi(1-x)As, structure type ZrBeSi, space group P6(3)/mmc, Pearson symbol hP6, a = 4.49277(9) Å, c = 8.0970(3) Å, V = 141.54(1) Å(3), RF = 0.026 for 113 reflections. The analysis of the electron density within the framework of the quantum theory of atoms in molecules revealed a charge transfer according to the Sr(1.3+)Li(0.8+)As(2.1-), in agreement with the electronegativities of the individual elements. The electron localizability indicator distribution indicated the formation of a 3D anionic framework [LiAs] in o-SrLiAs and a rather 2D anionic framework [LiAs] in h-SrLi(1-x)As. Magnetic susceptibility measurements point to a diamagnetic character of both phases, which verifies the calculated electronic density of states.
Collapse
Affiliation(s)
- Xian-Juan Feng
- Key Laboratory of Transparent Opto-Functional Inorganic Materials of Chinese Academy of Sciences, Shanghai Institute of Ceramics, Shanghai 200050, China
| | | | | | | | | | | | | | | | | |
Collapse
|