Dynamics at polarized, carbon dioxide-iron oxyhydroxide interfaces unveil the origin of multicarbon product formation (2021)
Journal Article
Arrigo, R., Blume, R., Streibel, V., Genovese, C., Roldan, A., Schuster, M., …Centi, G. (2022). Dynamics at polarized, carbon dioxide-iron oxyhydroxide interfaces unveil the origin of multicarbon product formation. ACS catalysis, 12(1), 411-430. https://doi.org/10.1021/acscatal.1c04296

Surface-sensitive ambient pressure X-ray photoelectron spectroscopy and near edge X-ray absorption fine structure spectroscopy combined with an electrocatalytic reactivity study, multilength scale electron microscopy and theo-retical modelling provid... Read More about Dynamics at polarized, carbon dioxide-iron oxyhydroxide interfaces unveil the origin of multicarbon product formation.

Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy (2021)
Journal Article
Arrigo, R., Sasaki, T., Callison, J., Gianolio, D., & Schuster, M. (2022). Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy. Journal of Energy Chemistry, 64, 520-530. https://doi.org/10.1016/j.jechem.2021.05.005

In this study, we aim to contribute an understanding of the pathway of formation of Fe species during top-down synthesis of dispersed Fe on N-functionalized few layer graphene. We use X-ray absorption spectroscopy to determine the electronic structur... Read More about Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy.

Influence of synthesis conditions on the structure of nickel nanoparticles and their reactivity in selective asymmetric hydrogenation (2019)
Journal Article
Arrigo, R., Gallarati, S., Schuster, M., Seymour, J., Gianolio, D., da Silva, I., …Held, G. (2020). Influence of synthesis conditions on the structure of nickel nanoparticles and their reactivity in selective asymmetric hydrogenation. ChemCatChem, 12(5), 1491-1503. https://doi.org/10.1002/cctc.201901955

Unsupported and SiO2-supported Ni nanoparticles (NPs), were synthesised via hot-injection colloidal route using oleylamine (OAm) and trioctylphosphine (TOP) as reducing and protective agents, respectively. By adopting a multi-length scale structural... Read More about Influence of synthesis conditions on the structure of nickel nanoparticles and their reactivity in selective asymmetric hydrogenation.

On the high structural heterogeneity of Fe impregnated graphite-carbon catalysts from Fe nitrate precursor (2019)
Journal Article
Arrigo, R., & Schuster, M. (2019). On the high structural heterogeneity of Fe impregnated graphite-carbon catalysts from Fe nitrate precursor. Catalysts, 9(4), 303. https://doi.org/10.3390/catal9040303

Wet impregnation is broadly applied for the synthesis of carbon supported metal/metal oxide nanostructures because of its high flexibility, simplicity and low cost. By contrast, impregnated catalysts are typified by a usually undesired nanostructural... Read More about On the high structural heterogeneity of Fe impregnated graphite-carbon catalysts from Fe nitrate precursor.

The role of the copper oxidation state in the electrocatalytic reduction of CO2 into valuable hydrocarbons (2018)
Journal Article
Velasco-Vélez, J., Jones, T., Gao, D., Carbonio, E., Arrigo, R., Hsu, C., …Chuang, C. (2018). The role of the copper oxidation state in the electrocatalytic reduction of CO2 into valuable hydrocarbons. ACS sustainable chemistry & engineering, 7(1), 1485-1492. https://doi.org/10.1021/acssuschemeng.8b05106

Redox-active copper catalysts with accurately prepared oxidation states (Cu0, Cu+ and Cu2+) and high selectivity to C2 hydrocarbon formation, from electrocatalytic cathodic reduction of CO2, were fabricated and characterized. The electrochemically pr... Read More about The role of the copper oxidation state in the electrocatalytic reduction of CO2 into valuable hydrocarbons.

The electronic structure of iridium oxide electrodes active in water splitting (2015)
Journal Article
Pfeifer, V., Jones, T., Velasco Vélez, J., Massué, C., Greiner, M., Arrigo, R., …Schlögl, R. (2015). The electronic structure of iridium oxide electrodes active in water splitting. Physical Chemistry Chemical Physics, 2016(18), 2292-2296. https://doi.org/10.1039/c5cp06997a

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
Velasco-Vélez, J., Pfeifer, V., Hävecker, M., Weatherup, R., Arrigo, R., Chuang, C., …Knop-Gericke, A. (2018). Photoelectron spectroscopy at the graphene-liquid interface reveals the electronic structure of an electrodeposited cobalt/graphene electrocatalyst. Angewandte Chemie International Edition, 54(48), 14554-14558. https://doi.org/10.1002/anie.201506044

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.