Sarah Hartmann

ORCID: 0000-0002-1339-477X
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Research Areas
  • Advanced Battery Technologies Research
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Mesoporous Materials and Catalysis
  • Smart Cities and Technologies
  • Polyoxometalates: Synthesis and Applications
  • E-Government and Public Services
  • Zeolite Catalysis and Synthesis
  • Advanced battery technologies research
  • Supercapacitor Materials and Fabrication
  • Aerogels and thermal insulation
  • Fiber-reinforced polymer composites
  • Catalytic Processes in Materials Science
  • Photonic Crystals and Applications
  • Ultrasonics and Acoustic Wave Propagation
  • Human Mobility and Location-Based Analysis
  • Nanomaterials for catalytic reactions
  • Electrical and Bioimpedance Tomography
  • Innovative Approaches in Technology and Social Development
  • Covalent Organic Framework Applications
  • Electromagnetic Compatibility and Noise Suppression
  • Electrostatics and Colloid Interactions
  • Analytical Chemistry and Chromatography
  • Silicone and Siloxane Chemistry
  • Innovative Microfluidic and Catalytic Techniques Innovation

Fraunhofer Institute for Silicate Research
2014-2024

Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2022

Université Grenoble Alpes
2022

CEA LETI
2022

Heinrich Heine University Düsseldorf
2016-2017

Universität Ulm
2007-2014

Institut Charles Gerhardt Montpellier
2012

École Nationale Supérieure de Chimie de Montpellier
2012

Centre National de la Recherche Scientifique
2012

École Normale Supérieure - PSL
2012

Abstract This roadmap presents the transformational research ideas proposed by “BATTERY 2030+,” European large‐scale initiative for future battery chemistries. A “chemistry‐neutral” to advance research, particularly at low technology readiness levels, is outlined, with a time horizon of more than ten years. The centered around six themes: 1) accelerated materials discovery platform, 2) interface genome, integration smart functionalities such as 3) sensing and 4) self‐healing processes....

10.1002/aenm.202102785 article EN cc-by Advanced Energy Materials 2022-01-21

The preparation of porous hierarchical architectures that have structural features spanning from the nanometer to micrometer and even larger dimensions exhibit certain functionalities is one new challenging frontiers in materials chemistry. sol-gel process most promising synthesis routes toward such because it not only offers possibility incorporate organic functions into host but also deliberately tailor pore structure. In this Account, opportunities given by application novel diol-modified...

10.1021/ar6000318 article EN Accounts of Chemical Research 2007-05-23

Abstract The interplay between the internal mechanical properties and external conditions of a battery cell, e. g., Young's modulus thickness change, has crucial impact on cell performance lifetime, thus, needs to be fully understood. In this work, 12 Ah lithium‐ion pouch cells were studied during cycling aging by non‐invasive operando ultrasonic dilation measurements. effective increases varies most within single cycle graphite transition from stage 1L 4, at beginning 2 1 phase nickel‐rich...

10.1002/batt.202200518 article EN cc-by Batteries & Supercaps 2023-02-13

Pd nanoparticles are immobilized by a green procedure onto unconventional dual porosity titania monoliths. The material is used in catalytic continuous-flow hydrogenation reactions showing excellent efficiency, selectivity, and durability.

10.1021/cs3005902 article EN ACS Catalysis 2012-09-11

A new rapid, very simple and one-step sol-gel strategy for the large-scale preparation of highly porous γ-Al2O3 is presented. The resulting mesoporous alumina materials feature high surface areas (400 m2 g−1), large pore volumes (0.8 mL g−1) phase obtained at low temperature (500 °C). main advantages drawbacks different preparations exhibiting specific such as surfactant-nanostructured alumina, methods hierarchically macro-/mesoporous monoliths have been analyzed compared. most reproducible...

10.3390/ma5020336 article EN cc-by Materials 2012-02-20

Abstract To reduce the ecological footprint and to increase lifetime of lithium‐ion batteries (LIBs), it is necessary understand aging phenomena inside cells during cycling. In this study, positive effect external pressure through bracing on investigated for automotive battery with more than 7000 cycles. After cycling, aged are studied by using post‐mortem analysis. It shown that does not affect anode cathode in same manner. A lack results lithium plating due contact losses anode. Such a...

10.1002/aenm.202102448 article EN Advanced Energy Materials 2021-12-04

Contemporary and future cities are often labeled as "smart cities," "digital cities" or "ubiquitous "knowledge "creative cities." Informational urbanism includes all aspects of information (tacit well explicit) knowledge with regard to urban regions. "Informational city" (or in a broader sense) is an umbrella term uniting the divergent trends information-related city research. interdisciplinary endeavor incorporating on one side computer science other studies, planning, architecture,...

10.24251/hicss.2017.340 article EN cc-by-nc-nd Proceedings of the ... Annual Hawaii International Conference on System Sciences/Proceedings of the Annual Hawaii International Conference on System Sciences 2017-01-01

ABSTRACT The purpose of this panel is to discuss actual developments in the co‐creation public services and role information science within it. With advent knowledge society, participation have become crucial smart‐city decision‐making processes. Transfer through face‐to‐face interaction transfer digital networks are spurring process innovation. combination both dimensions needs particular attention field enable suitable methods management at a city level. This will bring together...

10.1002/pra2.2016.14505301006 article EN Proceedings of the Association for Information Science and Technology 2016-01-01

Abstract Ultrasound spectroscopy up to 6 MHz is carried out on a 12 Ah Lithium‐ion battery pouch‐cell. The analysis revealed that the attenuation behavior can be effectively described as having an absorption component and resonance component. It was demonstrated modeled second order polynomial. Two distinct resonances were identified at 2.2 4.4 MHz. first of these shows significant almost linear reduction in magnitude with increasing state charge. By smartly choosing ultrasound interrogation...

10.1002/batt.202400212 article EN cc-by Batteries & Supercaps 2024-06-13

A new approach focusing on the reactivity of a silica source was developed for particle size control monodispersed mesoporous spheres (MMSSs). glycol-modified silanes, tetrakis(2-hydroxyethyl) orthosilicate chosen as and successfully applied in surfactant-templated synthesis MMSSs very dilute alkaline alcohol-water mixture. Due to its higher hydrolysis rate compared with tetraalkyl orthosilicates, it took less time primary particles come out, resulting formation small diameters falling low...

10.1021/la902498p article EN Langmuir 2009-09-17

Abstract Lithium metal is considered as the ‘holy‐grail’ among anode materials for lithium‐ion batteries, but it also has some serious drawbacks such formation of dendritic and dead lithium. In this study, interplay external pressure different carbonate‐ ether‐based electrolytes on (ir)reversible expansion lithium during cycling against titanate iron phosphate studied. carbonate‐based without any additives, shows tremendous irreversible significant capacity reduction at elevated current...

10.1002/batt.202200452 article EN cc-by Batteries & Supercaps 2022-12-16

One of the major challenges metal-air batteries is impeded oxygen reduction reaction (ORR) during discharge occurring at gas diffusion electrode (GDE) battery. Due to ORR, high overpotentials emerge and result in a loss energy efficiency. In order improve latter, suitable catalysts have be employed. Transition metal oxides like manganese (e.g., MnO2, Mn2O3, Mn3O4, Mn5O8, MnOOH) [1,2] are known as good inexpensive materials for ORR alkaline media. A drawback oxide poor electrical...

10.3390/c2010004 article EN cc-by C – Journal of Carbon Research 2016-02-15

Abstract In this work the successful application of commercially available, linear PEO‐PDMS‐PEO block copolymers in synthesis hierarchically organized silica monoliths comprising a periodic arrangement mesopores as well well‐defined macroporous morphology is presented. All were synthesized via sol‐gel approach with an ethylene glycol‐modified silane (EGMS) precursor. Beyond their use structure‐directing agents, these siloxane surfactants can also be employed agents to tailor surface polarity...

10.1002/zaac.201300443 article EN Zeitschrift für anorganische und allgemeine Chemie 2014-01-09

A newly designed downdraft wood stove achieved low-emission heating by integrating an alumina-supported mixed metal oxide catalyst in the combustion chamber operated under high temperature conditions. In first step, a screening has been carried out with lab-scale plug flow reactor order to identify potentially active catalysts. Mixed catalysts have center of attention because their expected stability and activity. The synthesized through two novel routes, it integrated into stove. reduced...

10.4172/2157-7544.1000125 article EN Journal of Thermodynamics & Catalysis 2014-01-01

Abstract A simple 1D transfer matrix model of a battery is introduced and parametrized using harvested individual cell components at 0 % 100 SoC. This allows for the calculation group velocity attenuation. The results show good agreement with measured values, highlighting increased attenuation resonances. emphasizes importance selecting suitable interrogation frequency ultrasound investigations in lithium‐ion batteries. accurately replicates observed weakening resonances increasing...

10.1002/batt.202400478 article EN cc-by Batteries & Supercaps 2024-11-16

The demand for higher energy densities in lithium-ion batteries leads to the use of next-generation anode materials, e.g. lithium metal or silicon anodes, order achieve those targets. When comparing with today’s state-of-the-art (SoA) electrode one downside increased density materials is drastically volume changes during formation and cycling. These exhibit theoretically up ~300% silicon, example, ~4.9 µm per mAh cm -2 [1]. volumetric can favor aging mechanisms increase...

10.1149/ma2022-012179mtgabs article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2022-07-07

Due to their high energy densitites lithium-air and lithium-sulfur are the most promising battery technologies. Both systems inhibit substantial drawbacks, though. The dendrite formation on lithium anode subsequent shorting of cell is still unsolved since first market introduction rechargeable lithium-batteries in early 1990s. With common liquid electrolytes cannot reliably be prevented. However, solid with a shear modulus effectively this effect. [1] Solid NASICON-type (e. g. Li 1+x Al x Ti...

10.1149/ma2014-04/4/733 article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2014-06-10

Improving diagnostics of lithium-ion batteries (LIBs), and in particular the measurement prediction remaining capacity, can lead to a longer lifetime safer use. One promising approach LIB is use ultrasound. Ultrasound signals measure stiffness changes active materials occurring during cycling aging be used predict state-of-charge (SoC) state-of-health (SoH) cells [1,2]. Traditionally, ultrasound have been analyzed time domain by studying flight. However, novel study frequency domain. The aim...

10.1149/ma2023-022171mtgabs article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2023-12-22

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 200 leading journals. To access Abstract, please click on HTML or PDF.

10.1002/chin.200751239 article EN ChemInform 2007-11-29
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