Search Results - "Ghigna, Paolo"
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Observing the oxidation state turnover in heterogeneous iridium-based water oxidation catalysts
Published in Chemical science (Cambridge) (01-07-2014)“…In this work the oxidation states assumed by Ir in oxide systems used as heterogeneous catalysts for water oxidation are determined by means of in situX-ray…”
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Operando x-ray absorption spectroscopy on battery materials: a review of recent developments
Published in JPhys Energy (01-07-2021)“…Abstract Although batteries represent a key tool for sustainable development, their working processes, in terms of reaction mechanisms, side reactions, ion…”
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Stabilization by Configurational Entropy of the Cu(II) Active Site during CO Oxidation on Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O
Published in The journal of physical chemistry letters (07-05-2020)“…The mechanisms of CO oxidation on the Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O high-entropy oxide were studied by means of operando soft X-ray absorption spectroscopy. We…”
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Multivariate curve resolution analysis of operando XAS data for the investigation of the lithiation mechanisms in high entropy oxides
Published in Chemical physics letters (01-12-2020)“…[Display omitted] •The lithiation mechanism was investigated through MCR of operando XAS data.•Characterization of the active species in the high entropy oxide…”
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An Operando X‑ray Absorption Spectroscopy Study of a NiCu−TiO2 Photocatalyst for H2 Evolution
Published in ACS catalysis (07-08-2020)“…Cu- or Ni-decorated semiconductors represent a potential low-cost alternative to noble-metal-modified photocatalysts. Even more effective are bimetallic NiCu…”
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6
Is configurational entropy the main stabilizing term in rock-salt Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O high entropy oxide?
Published in Nature communications (27-05-2022)Get full text
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Accurate prediction of the optical properties of nanoalloys with both plasmonic and magnetic elements
Published in Nature communications (27-01-2024)“…The alloying process plays a pivotal role in the development of advanced multifunctional plasmonic materials within the realm of modern nanotechnology…”
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The Missing Piece: The Structure of the Ti3C2Tx MXene and Its Behavior as Negative Electrode in Sodium Ion Batteries
Published in Nano letters (13-10-2021)“…The most common MXene composition Ti 3 C 2 T x (T = F, O) shows outstanding stability as anode for sodium ion batteries (100% of capacity retention after 530…”
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Understanding Solid–Gas Reaction Mechanisms by Operando Soft X‑Ray Absorption Spectroscopy at Ambient Pressure
Published in Journal of physical chemistry. C (02-07-2020)“…Ambient-pressure operando soft X-ray absorption spectroscopy (soft-XAS) was applied to study the reactivity of hydroxylated SnO2 nanoparticles toward reducing…”
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Dewetting of PtCu Nanoalloys on TiO2 Nanocavities Provides a Synergistic Photocatalytic Enhancement for Efficient H2 Evolution
Published in ACS applied materials & interfaces (26-08-2020)“…We investigate the co-catalytic activity of PtCu alloy nanoparticles for photocatalytic H2 evolution from methanol–water solutions. To produce the…”
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Laser generation of iron-doped silver nanotruffles with magnetic and plasmonic properties
Published in Nano research (01-12-2015)“…A frontier topic in nanotechnology is the realization of multifunctional nanoparticles (NPs) via the appropriate combination of different elements of the…”
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Structure and Stability of a Copper(II) Lactate Complex in Alkaline Solution: a Case Study by Energy-Dispersive X‑ray Absorption Spectroscopy
Published in Inorganic chemistry (19-06-2017)“…Energy-dispersive X-ray absorption spectroscopy was applied, aimed at solving the problem of the structure and stability of a copper(II) lactate complex in…”
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Electrodeposited Cu thin layers as low cost and effective underlayers for Cu2O photocathodes in photoelectrochemical water electrolysis
Published in Journal of solid state electrochemistry (2020)“…Cu 2 O is one of the most studied semiconductors for photocathodes in photoelectrochemical water splitting (PEC-WS). Its low stability is counterbalanced by…”
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Capabilities of Grazing Incidence X-ray Diffraction in the Investigation of Amorphous Mixed Oxides with Variable Composition
Published in Materials (15-03-2022)“…X-ray Diffraction has been fully exploited as a probe to investigate crystalline materials. However, very little research has been carried out to unveil its…”
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IrO2-Based Disperse-Phase Electrocatalysts: A Complementary Study by Means of the Cavity-Microelectrode and Ex-Situ X-ray Absorption Spectroscopy
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (28-06-2012)“…In this work, IrO2-based powders are screened by cyclic voltammetry for the determination of the electrochemical active sites and for the qualitative…”
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Dielectric Effects in FeOx-Coated Au Nanoparticles Boost the Magnetoplasmonic Response: Implications for Active Plasmonic Devices
Published in ACS applied nano materials (21-01-2021)“…Plasmon resonance modulation with an external magnetic field (magnetoplasmonics) represents a promising route for the improvement of the sensitivity of…”
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Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce
Published in Optical materials (01-11-2011)Get full text
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Role of Synthetic Parameters on the Structural and Optical Properties of N,Sn-Copromoted Nanostructured TiO2: A Combined Ti K-Edge and Sn L2,3-Edges X-ray Absorption Investigation
Published in Nanomaterials (Basel, Switzerland) (23-06-2020)“…Sn-modification of TiO2 photocatalysts has been recently proposed as a suitable strategy to improve pollutant degradation as well as hydrogen production. In…”
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Effect of Germanium Incorporation on the Electrochemical Performance of Electrospun Fe2O3 Nanofibers-Based Anodes in Sodium-Ion Batteries
Published in Applied sciences (01-02-2021)“…Fe2O3 and Fe2O3:Ge nanofibers (NFs) were prepared via electrospinning and thoroughly characterized via several techniques in order to investigate the effects…”
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Electronic Structure and Magnetic Coupling of Pure and Mg-Doped KCuF3
Published in Advances in condensed matter physics (01-01-2018)“…We investigated the electronic and magnetic properties of KCuF3 and KCu0.875Mg0.125F3 crystals by means of Density Functional periodic computations at the…”
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