Nanostructured Transition Metal Oxides for Electrochemical Energy Storage

Fleischmann, Simon; Kamboj, Ishita; Augustyn, Veronica

doi:10.1002/9783527817252.ch8

Cited by 4 publications

(3 citation statements)

References 89 publications

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“…Thermodynamically, the effect can be explained by contributions of excess chemical potential of lithium at (near-)surface sites of MoS2 nanocrystals dispersing the resulting redox potential [36,37]. While the sloping potential profile of MoS2 TU is observed between ca.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Tobis,

Elmanzalawy,

Choi

et al. 2024

Preprint

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Molybdenum disulfide (MoS2)-based electrode materials can exhibit a pseudocapacitive charge storage mechanism induced by nanosized dimension of the crystalline domains. This effect is achievable through hydrothermal synthesis of MoS2, which often yields different properties of the final material, thereby affecting its electrochemical lithium intercalation behavior. In this study, we investigate how the use of different sulfide precursors, specifically thiourea (TU), thioacetamide (TAA), and L-cysteine (LC), during the hydrothermal synthesis of MoS2, affects its physicochemical, and consequently, electrochemical properties. The three materials obtained exhibit distinct morphologies, ranging from micron-sized architectures (MoS2 TU), to nanosized flakes (MoS2 TAA and LC), which influence their available specific surface area and tortuosity. Consequently, the choice of hydrothermal synthesis parameters allows to control the resulting electrochemical signature. The individual charge storage properties are analyzed by operando X-ray diffraction, dilatometry, and 3D Bode analysis, revealing a correlation between the morphology, porosity, and the electrochemical intercalation behavior of the obtained electrode materials. The results demonstrate a facile strategy to control MoS2 structure and related functionality by choice of hydrothermal synthesis precursors.

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Section: Electrochemical Characterizationmentioning

confidence: 99%

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Tobis,

Elmanzalawy,

Choi

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…In LIBs, the basis of the power supply comes from the Li-ion shuttle between the electrode materials; thus, the electrode performance can be evaluated by the Li-ion insertion ability. The electrode material can be divided into three types: intercalation; conversion; alloying [88] .…”

Section: Typical Lib Electrode Materialsmentioning

confidence: 99%

Advances in lithium-ion battery materials for ceramic fuel cells

2022

Energy Mater

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Lithium-ion batteries (LIBs) and ceramic fuel cells (CFCs) are important for energy storage and conversion technologies and their materials are central to developing advanced applications. Although there are many crosslinking research activities, e.g., through materials and some common scientific fundamentals employed for both LIB and CFCs, crosslinking scientific aspects to achieve a comprehensive understanding are missing. There is a lack of such a review to promote and guide further research and development in the crosslinking of LIBs and CFCs. Herein, we review the existing application of LIB materials in CFCs to discover the scientific advances of lithium-ion and proton transport cooperation and identify the new directions of Li-CFCs in the future. This review is the first to propose CFC advances, especially at low temperatures (300-600 °C) by applying LIB materials to practical devices and highlight the material properties and new device functions with enhanced performance, as well as the scientific mechanisms and principles. Furthermore, we seek to deepen the scientific understanding of materials science, ion transport mechanisms and semiconductor electrochemistry to benefit both the battery and fuel cell fields.

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“…Metal oxides emerged as an indispensable class of materials due to the wide range of properties they can exhibit according to their composition, degree of crystallinity and morphology. Thus, they are employed in various technological fields such as catalysis (Védrine, 2017), electronics, including transistors (Yu et al, 2016) and gas sensors (Arafat et al, 2012;Chavali and Nikolova, 2019;Yu et al, 2022), as well as energy storage (Ellis et al, 2014;Fleischmann et al, 2022;Su et al, 2016) and solar cells (Chen et al, 2012). These diverse applications of metal oxides often require the use of particles with defined properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes

Okeil,

Ungerer,

Nirschl

et al. 2024

KONA

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Due to their low cost, high stability and low toxicity, metal oxide nanomaterials are widely used for applications in various fields such as electronics, cosmetics and photocatalysis. There is an increasing demand thereby for nanoparticles with highly defined properties, in particular a narrow particle size distribution and a well-defined morphology. Such products can be obtained under high control via bottom-up synthesis approaches. Although aqueous processes are largely found in literature, they often lead to particles with low crystallinity and broad size distribution. Thus, there has been a growing trend towards the use of non-aqueous and non-hydrolytic synthesis routes. Through variation of the reaction medium and the use of adequate additives, such non-aqueous systems can be tuned to adapt the product properties, and especially to yield anisotropic nanoparticles with peculiar shapes and even complex architectures. Anisotropic particle growth enables the exposure of specific facets of the oxide nanocrystal, leading to extraordinary properties such as enhanced catalytic activity. Thus, there is an increasing demand for anisotropic nanoparticles with tailored morphologies. In this review, the nonaqueous and non-hydrolytic synthesis of anisotropic metal oxide nanoparticles is presented, with a particular focus on the different parameters resulting in anisotropic growth to enable the rational design of specific morphologies. Furthermore, secondary phenomena occurring during anisotropic particle growth, such as oriented attachment mechanisms, will be discussed.

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Nanostructured Transition Metal Oxides for Electrochemical Energy Storage

Cited by 4 publications

References 89 publications

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Advances in lithium-ion battery materials for ceramic fuel cells

Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes

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