A5081354641- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Atomic and Subatomic Physics Research
- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Electrochemical Analysis and Applications
- Catalysts for Methane Reforming
- Black Holes and Theoretical Physics
- 2D Materials and Applications
- Muon and positron interactions and applications
- Wireless Body Area Networks
- Catalysis and Hydrodesulfurization Studies
University of Oxford
2020-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2024
Roma Tre University
2024
The Faraday Institution
2021-2024
Diamond Light Source
2024
European Organization for Nuclear Research
2023-2024
Charles University
2023-2024
University of Birmingham
2018-2023
UCLouvain
2022-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2022
Abstract With the establishment and maturation of experimental programs searching for new physics with sizeable couplings at LHC, there is an increasing interest in broader particle astrophysics community exploring light feebly-interacting particles as a paradigm complementary to New Physics sector TeV scale beyond. FIPs 2020 has been first workshop fully dedicated was held virtually from 31 August 4 September 2020. The gathered together experts collider, beam dump, fixed target experiments,...
Abstract The factors limiting the conductivity of fluorine‐doped tin dioxide (FTO) produced via atmospheric pressure chemical vapor deposition are investigated. Modeling transport properties indicates that measured Hall effect mobilities far below theoretical ionized impurity scattering limit. Significant compensation donors by acceptors is present with a ratio 0.5, indicating for every two there approximately one acceptor. Hybrid density functional theory calculations defect and formation...
The solid electrolyte interphase (SEI) that forms on Li-ion battery anodes is critical to their long-term performance, however observing SEI formation processes at the buried electrode-electrolyte interface a significant challenge. Here we show operando soft X-ray absorption spectroscopy in total electron yield mode can resolve chemical evolution of during electrochemical cell, with nm-scale sensitivity. O, F, and Si K-edge spectra, acquired as function potential, reveal when key reactions...
The reactions of H2, CO2, and CO gas mixtures on the surface Cu at 200 °C, relevant for industrial methanol synthesis, are investigated using a combination ambient pressure X-ray photoelectron spectroscopy (AP-XPS) atmospheric-pressure near edge absorption fine structure (AtmP-NEXAFS) bridging pressures from 0.1 mbar to 1 bar. We find that order dosing can critically affect catalyst chemical state, with maintained in metallic state when H2 is introduced prior addition CO2. Only increasing...
Abstract Kaon physics is at a turning point – while the rare-kaon experiments NA62 and KOTO are in full swing, end of their lifetime approaching future experimental landscape needs to be defined. With HIKE, KOTO-II LHCb-Phase-II on table under scrutiny, it very good moment time take stock contemplate about opportunities these theoretical developments provide for particle coming decade beyond. This paper provides compact summary talks discussions from Kaons@CERN 2023 workshop, held September CERN.
Single-site catalysts (SSCs) have attracted significant research interest due to their high metal atom utilization. Platinum single sites trapped in the defects of carbon substrates (trapped Pt-SSCs) been proposed as efficient and stable electrocatalysts for hydrogen evolution reaction (HER). However, correlation between Pt bonding environment, its during operation, catalytic activity is still unclear. Here, a Pt-SSC synthesized by pyrolysis H2PtCl6 chemisorbed on polyaniline substrate. In...
A deconstructed MOCVD model process allows in-<italic>operando</italic> fingerprinting of the chemical reactions that underpin WS2 monolayer crystal growth, and highlights enhancing role Au support in conjunction with simple organosulfide precursors.
Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, end of their lifetime approaching future experimental landscape needs to be defined. With HIKE, KOTO-II LHCb-Phase-II on table under scrutiny, it very good moment time take stock contemplate about opportunities these theoretical developments provide for particle coming decade beyond. This paper provides compact summary talks discussions from Kaons@CERN 2023 workshop.
The key charge transfer processes in energy storage devices occur at the electrode-electrolyte interface, which is typically buried making it challenging to access interfacial chemistry. In case of Li-ion batteries, metallic Li electrodes hold promise for increasing and power densities, when used conjunction with solid electrolytes (SEs) adverse safety implications associated dendrite formation organic liquid can potentially be overcome. To better understand stability SEs contact alkali...
The Doyle-Fuller-Newman model is widely applied for the simulation of Li-ion batteries (LIBs), and considers a binary electrolyte (one anion, one cation, solvent) using Maxwell-Stefan diffusion. However, commercial electrolytes composed LiPF6 dissolved in mixture cyclic linear organic carbonates, are not accurately captured within this description. Here, Raman spectroscopy an optically-accessible electrochemical cell, we obtain concentration profiles each species, confirming they deviate...
Tantalum doped tin oxide (TaTO) has the potential to surpass more commonly used transparent electrode, fluorine (FTO), in terms of electrical conductivity as it avoids self-compensating F interstitial defects that limit FTO. However, high mobility TaTO only been deposited by pulsed laser deposition (PLD), a slow, expensive and non-scalable technique. In this work, was RF co-sputtering SnO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub>...
Abstract Single-site catalysts (SSCs) have attracted significant research interest due to their high metal atom utilisation. Platinum single sites trapped in the defects of carbon substrates (trapped Pt-SSCs) been proposed as efficient and stable electrocatalysts for hydrogen evolution reaction (HER). However, correlation between Pt bonding environment, its during operation catalytic activity is still unclear. Here, a Pt-SSC synthesised by pyrolysis H 2 PtCl 6 chemisorbed on polyaniline...
Trapped platinum single-site catalysts (Pt-SSCs) in defective carbon substrates are of particular interest for polymer-electrolyte membrane (PEM) water electrolysers due to their high Pt atom utilization the hydrogen evolution reaction (HER). However, intrinsic catalytic activity compared with metallic nanoparticles remains a topic debate field opposing results reported. [1, 2] A detailed investigation bonding environment and its at HER working conditions is therefore warranted order...
Lithium-ion batteries (LIBs) are key to the transition from fossil fuels towards increased use of renewable energy sources. However, more widespread deployment requires improvements in density, cost and cycle-lifetime. Various cathode anode materials under consideration for next-generation LIBs, interfacial stability these contact with electrolyte is a critical consideration. Interface-sensitive operando characterization techniques thus urgently needed reveal reactions occurring working...
The solid electrolyte interphase (SEI) that forms on Li-ion battery anodes is critical to their long-term performance, however observing SEI forma- tion processes at the buried electrode-electrolyte interface a significant challenge. Here we show operando soft X-ray absorption spectroscopy in total electron yield mode can resolve chemical evolution of during electrochemical formation cell, with nm-scale sensitivity. O, F, and Si K-edge spectra, acquired as function potential, reveal when key...
A search for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ and flavour $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ decays is reported using NA62 data collected in 2017 2018. No significant excess observed above background expectation therefore upper limits are established on branching ratios at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})<4.2\times10^{-11}$ $\mathcal{B}(K^{+}\rightarrow\pi^{+}\mu^{-}e^{+})<6.6\times10^{-11}$. These results improve...