Outputs (43)

Electrochemically active Ir NPs on graphene for OER in acidic aqueous electrolyte investigated by in situ and ex situ spectroscopies (2018)
Journal Article

An electrode for the oxygen evolution reaction based on a conductive bi-layered free standing graphene support functionalized with iridium nanoparticles was fabricated and characterized by means of potentiometric and advanced X-ray spectroscopic tech... Read More about Electrochemically active Ir NPs on graphene for OER in acidic aqueous electrolyte investigated by in situ and ex situ spectroscopies.

In situ electrochemical cells to study the oxygen evolution reaction by near ambient pressure x-ray photoelectron spectroscopy (2018)
Journal Article

In this contribution, we report the development of in situ electrochemical cells based on proton exchange membranes suitable for studying interfacial structural dynamics of energy materials under operation by near ambient pressure X-ray photoelectron... Read More about In situ electrochemical cells to study the oxygen evolution reaction by near ambient pressure x-ray photoelectron spectroscopy.

Operando spectroscopy study of the carbon dioxide electro-reduction by iron species on nitrogen-doped carbon (2018)
Journal Article

The carbon–carbon coupling via electrochemical reduction of carbon dioxide represents the biggest challenge for using this route as platform for chemicals synthesis. Here we show that nanostructured iron (III) oxyhydroxide on nitrogen-doped carbon en... Read More about Operando spectroscopy study of the carbon dioxide electro-reduction by iron species on nitrogen-doped carbon.

In situ observation of reactive oxygen species forming on oxygen-evolving iridium surfaces (2016)
Journal Article

Water splitting performed in acidic media relies on the exceptional performance of iridium-based materials to catalyze the oxygen evolution reaction (OER). In the present work, we use in situ X-ray photoemission and absorption spectroscopy to resolve... Read More about In situ observation of reactive oxygen species forming on oxygen-evolving iridium surfaces.

Acid-base properties of N-doped carbon nanotubes : a combined temperature-programmed desorption, X-ray photoelectron spectroscopy, and 2-propanol reaction investigation (2016)
Journal Article
Ortega, K., Arrigo, R., Frank, B., Schlögl, R., & Trunschke, A. (2016). Acid-base properties of N-doped carbon nanotubes : a combined temperature-programmed desorption, X-ray photoelectron spectroscopy, and 2-propanol reaction investigation. Chemistry of Materials, 28(19), 6826-6839. https://doi.org/10.1021/acs.chemmater.6b01594

Chemical and electronic properties of N-doped multiwalled carbon nanotubes (NCNTs) synthesized by NH3 treatment of preoxidized CNTs at 300, 500, and 700°C have been investigated by a set of surface sensitive techniques. Temperature-programmed desorpt... Read More about Acid-base properties of N-doped carbon nanotubes : a combined temperature-programmed desorption, X-ray photoelectron spectroscopy, and 2-propanol reaction investigation.

Pd supported on carbon nitride boosts the direct hydrogen peroxide synthesis (2016)
Journal Article

Herein, the development of an improved Pd on
carbon nitride catalyst for direct H2O2 synthesis from the
elements is reported. Microcalorimetric CO chemisorption is used to characterize the chemical speciation of the Pd-selective and -unselective si... Read More about Pd supported on carbon nitride boosts the direct hydrogen peroxide synthesis.

Reactive oxygen species in iridium-based OER catalysts (2016)
Journal Article
Arrigo, R. (2016). Reactive oxygen species in iridium-based OER catalysts. Chemical Science, 2016(7), 6791-6795. https://doi.org/10.1039/c6sc01860b

Tremendous effort has been devoted towards elucidating the fundamental reasons for the higher activity of
hydrated amorphous IrIII/IV oxyhydroxides (IrOx) in the oxygen evolution reaction (OER) in comparison with
their crystalline counterpart, ruti... Read More about Reactive oxygen species in iridium-based OER catalysts.

Characterization of platinum and iridium oxyhydrate surface layers from platinum and iridium foils (2016)
Journal Article

Platinum and iridium polycrystalline foils were oxidized electrochemically through anodization to create thin platinum and iridium hydrous oxide layers, which were analyzed through laboratory photoelectron spectroscopy during heating and time series... Read More about Characterization of platinum and iridium oxyhydrate surface layers from platinum and iridium foils.

The electronic structure of iridium oxide electrodes active in water splitting (2015)
Journal Article

Iridium oxide based electrodes are among the most promising candidates for electrocatalyzing the oxygen evolution reaction, making it imperative to understand their chemical/electronic structure. However, the complexity of iridium oxide's electronic... Read More about The electronic structure of iridium oxide electrodes active in water splitting.

Photoelectron spectroscopy at the graphene-liquid interface reveals the electronic structure of an electrodeposited cobalt/graphene electrocatalyst (2015)
Journal Article

Electrochemically grown cobalt on graphene exhibits exceptional performance as a catalyst for the oxygen evolution reaction (OER) and provides the possibility of controlling the morphology and the chemical properties during deposition. However, the d... Read More about Photoelectron spectroscopy at the graphene-liquid interface reveals the electronic structure of an electrodeposited cobalt/graphene electrocatalyst.