Tobias Braun

ORCID: 0000-0002-9113-2492
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About
Contact & Profiles
Research Areas
  • Advancements in Battery Materials
  • Advanced battery technologies research
  • Fuel Cells and Related Materials
  • Electrochemical Analysis and Applications
  • Advanced Battery Materials and Technologies
  • Supercapacitor Materials and Fabrication
  • Extraction and Separation Processes
  • Metallurgical Processes and Thermodynamics
  • Advancements in Transdermal Drug Delivery
  • Layered Double Hydroxides Synthesis and Applications
  • Hydrogen Storage and Materials
  • Hair Growth and Disorders
  • Advanced Memory and Neural Computing
  • Magnesium Alloys: Properties and Applications
  • Semiconductor materials and interfaces
  • Transition Metal Oxide Nanomaterials
  • High-Temperature Coating Behaviors
  • Electrocatalysts for Energy Conversion
  • Inorganic Chemistry and Materials
  • Corrosion Behavior and Inhibition
  • Nanoporous metals and alloys
  • Solidification and crystal growth phenomena
  • Dermatologic Treatments and Research

Helmholtz-Institute Ulm
2018-2023

Aqueous Mg battery technology holds significant appeal, owing to the availability of raw materials, high power densities and possibility fast mechanical recharge. However, batteries have so far been prone decreased capacity due self-corrosion anodes from electrochemical redeposition impurities, such as Fe, which results in parasitic cathodically active sites on discharging anode. This work demonstrates that by adding Fe3+-complexing agents like Tiron or salicylate aqueous electrolyte an...

10.1038/s41598-018-25789-8 article EN cc-by Scientific Reports 2018-05-09

Abstract Recently, the ternary spinel selenide MgSc 2 Se 4 was proposed to have high magnesium ion mobility and is therefore an interesting potential candidate as a solid electrolyte in secondary batteries. To test properties of material, modified solid‐state reaction used synthesize pure . Electrochemical characterizations identified detrimental electronic conductivities, which limit its application Mg‐conducting electrolyte. Two methods were attempted lower including implementation Se‐rich...

10.1002/cssc.201900225 article EN ChemSusChem 2019-02-26

Formation of nano-sized interphase layers, containing organic and inorganic species, in an interface modified Li–sulfur solid-state battery.

10.1039/d0ta05014h article EN Journal of Materials Chemistry A 2020-01-01

10.1007/bf02652461 article EN Metallurgical Transactions B 1979-06-01

Androgenetic alopecia (AGA) is characterized with chronic and progressive hair loss, psychological factors associated intensifying impact on patients. Current treatments, such as oral finasteride topical minoxidil, have low...

10.1039/d5tb00118h article EN cc-by Journal of Materials Chemistry B 2025-01-01

Disordered rock-salt compounds are becoming increasingly important due to their potential as high-capacity positive electrode materials for lithium-ion batteries. Thereby, a significant number of studies have focused on increasing the accessible Li capacity, but manipulate electrochemical limited. This work explores effect transition-metal substitution electrochemistry ternary disordered rock-salt-type with LiM2+0.5V0.54+O2 stoichiometry (M = Mn, Fe, Co) directly synthesized through...

10.1021/acsami.9b12566 article EN ACS Applied Materials & Interfaces 2019-10-07

Abstract The development of commercially viable fuel cells and metal‐air batteries requires effective cheap bifunctional catalysts for the oxygen reduction reaction (ORR) evolution (OER). Multi‐component Pt−Fe−Co−Ni nanoparticles on multi‐walled carbon nanotubes (MWCNTs) were synthesized by wet chemistry route via NaBH 4 metal salts, followed sintering at different temperatures. catalyst demonstrates an excellent ORR activity a promising OER in 0.1 m KOH, with bi‐functional over‐potential,...

10.1002/slct.202300396 article EN cc-by-nc ChemistrySelect 2023-08-01

Abstract In aqueous magnesium air batteries, the influence of electrochemical behavior on pH electrolyte has not been investigated yet, which a critical effect cell performance. We have monitored evolution at various discharge current densities in situ Mg‐air primary cells, produce sparingly soluble hydroxide (Mg(OH) 2 ). These experiments show temporal discharge, depending density. The first increases rapidly to maximum 11 and then drops down slowly equilibrium 10.7. At peak oversaturation...

10.1002/celc.202101191 article EN ChemElectroChem 2021-11-22

Electrically conducting graphitic carbon materials are ubiquitous constituents of electro­catalysts and electrochemical energy storage materials. During electrolysis charge-discharge cycles the matrix is subjected to chemical stress due drastic changes in redox environment, formation reactive intermediate species steric strain caused by intercalation counter ions. These factors trigger defects lattice, leading scattering charge carriers, thereby reducing carrier mobility. It outmost...

10.2139/ssrn.4561945 preprint EN 2023-01-01
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