Anna Wach

ORCID: 0000-0003-3112-2759
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Mesoporous Materials and Catalysis
  • X-ray Spectroscopy and Fluorescence Analysis
  • Electrocatalysts for Energy Conversion
  • Zeolite Catalysis and Synthesis
  • Layered Double Hydroxides Synthesis and Applications
  • Advanced Photocatalysis Techniques
  • Supercapacitor Materials and Fabrication
  • Electrochemical Analysis and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Advanced Chemical Physics Studies
  • Advanced X-ray Imaging Techniques
  • Fuel Cells and Related Materials
  • Catalytic C–H Functionalization Methods
  • X-ray Diffraction in Crystallography
  • Catalysis and Hydrodesulfurization Studies
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advancements in Battery Materials
  • Advanced battery technologies research
  • Nanocluster Synthesis and Applications
  • Electronic and Structural Properties of Oxides
  • Electron and X-Ray Spectroscopy Techniques
  • Covalent Organic Framework Applications
  • Polymer Nanocomposites and Properties

Jagiellonian University
1991-2025

Paul Scherrer Institute
2022-2025

Polish Academy of Sciences
2019-2025

Institute of Physical Chemistry
2025

Institute of Nuclear Physics, Polish Academy of Sciences
2018-2024

Rice University
2024

Uppsala University
2024

Maj Institute of Pharmacology
2019

Faculty (United Kingdom)
2016

Abstract Vision is initiated by the rhodopsin family of light-sensitive G protein-coupled receptors (GPCRs) 1 . A photon absorbed 11- cis retinal chromophore rhodopsin, which isomerizes within 200 femtoseconds to all- trans conformation 2 , thereby initiating cellular signal transduction processes that ultimately lead vision. However, intramolecular mechanism photoactivated induces activation events inside remains experimentally unclear. Here we use ultrafast time-resolved crystallography at...

10.1038/s41586-023-05863-6 article EN cc-by Nature 2023-03-22

Monitoring the spontaneous reconstruction of surface metal oxides under electrocatalytic reaction conditions is critical to identifying active sites and establishing structure–activity relationships. Here, we report on a self-terminated Ruddlesden–Popper lanthanum nickel oxide (La2NiO4+δ) that occurs spontaneously during with alkaline electrolyte species. Using combination high-resolution scanning transmission electron microscopy (HR-STEM), surface-sensitive X-ray photoelectron spectroscopy...

10.1021/jacs.4c00863 article EN Journal of the American Chemical Society 2024-03-26

Abstract Plasmonic systems convert light into electrical charges and heat, mediating catalytic transformations. However, there is ongoing controversy regarding the involvement of hot carriers in process. In this study, we demonstrate direct utilisation plasmon electrons hydrogen evolution reaction with visible light. We intentionally assemble a plasmonic nanohybrid system comprising NiO/Au/[Co(1,10-Phenanthrolin-5-amine) 2 (H O) ], which unstable at water thermolysis temperatures. This...

10.1038/s41467-024-44752-y article EN cc-by Nature Communications 2024-01-10

Transition metal reactivity toward carbon-hydrogen (C-H) bonds hinges on the interplay of electron donation and withdrawal at center. Manipulating this in a controlled way is difficult because hypothesized metal-alkane charge-transfer interactions are challenging to access experimentally. Using time-resolved x-ray spectroscopy, we track during C-H activation octane by cyclopentadienyl rhodium carbonyl complex. Changes oxidation state as well valence-orbital energies character emerge data...

10.1126/science.adf8042 article EN Science 2023-06-01

The intimate mechanism of N2O decomposition on bare and redox-tuned Co3O4 nanocubes (achieved by single (Li or K) double doping) was elucidated. catalysts synthesized the hydrothermal method were characterized X-ray electron absorption fine structure measurements, diffraction, Raman spectroscopy, scanning microscopy, transmission Kelvin Probe techniques. TPSR steady-state isothermal catalytic tests reveal that turnover frequencies are critically sensitive to work function catalysts, adjusted...

10.1021/jacs.4c06587 article EN cc-by Journal of the American Chemical Society 2024-08-23

NBOMes are N-benzylmethoxy derivatives of the 2C family hallucinogens. 4-Iodo-2,5-dimethoxy-N-(2-methoxybenzyl)phenethylamine (25I-NBOMe) is one commonly used illicit drugs. It exhibits high binding affinity for 5-HT2A/C and 5-HT1A serotonin receptors. Activation 5-HT2A receptor induces head-twitch response (HTR) in rodents, a behavioral marker hallucinogen effect humans. There not much data on neurochemical properties NBOMes. Therefore, we aimed to investigate 25I-NBOMe extracellular level...

10.1007/s12640-019-00033-x article EN cc-by Neurotoxicity Research 2019-04-15

In this study, a sonochemical route for the preparation of new Hf-MIL-140A metal-organic framework from mixture UiO-66/MIL-140A is presented. The synthesis not only allows phase-pure MIL-140A structure to be obtained but also induces structural defects in structure. synergic effect between irradiation and presence highly acidic environment results generation slit-like crystal structure, which increases specific surface area pore volume. BET-specific case sonochemically derived Zr-MIL-140A...

10.1016/j.ultsonch.2023.106377 article EN cc-by Ultrasonics Sonochemistry 2023-03-21

The environmental problems in Peru are rooted the waste management of residual agricultural biomass. Via our cooperative international research, nine different wastes from were used as renewable sources to produce activated carbons that tested gas-phase xylene adsorption. special properties agro-waste very large mesopore surface area, narrow pore size distribution within microporous–mesoporous region, and slightly acidic character presence oxygen-containing groups. textural, structural,...

10.1021/acssuschemeng.6b02703 article EN ACS Sustainable Chemistry & Engineering 2017-01-21

The effect of the preparation method on catalytic properties copper-containing zeolite Y samples applied for NH 3 -SCR-DeNO x was investigated.

10.1039/d3cy00269a article EN cc-by Catalysis Science & Technology 2023-01-01

Thermogravimetry, diffuse reflectance infrared Fourier transform spectroscopy, and X-ray photoelectron spectroscopy (XPS) were used for the studying of thermally induced structural changes polyacrylonitrile (PAN) deposited on surface SBA-15 type mesoporous silica. Polymer was introduced onto support by precipitation polymerization acrylonitrile in aqueous suspension SBA-15. Low temperature transformation (to 723 K) PAN analyzed. It found that at about 523 K, exothermic cyclization polymer...

10.1007/s10973-011-2157-6 article EN cc-by-nc Journal of Thermal Analysis and Calorimetry 2012-01-11
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