Thus, the use of spatiotemporal resolved spectroscopies with in-situ capabilities (during reaction conditions) are needed to fully understand the catalytic behavior of a catalyst. When exposing the c-Pt(111) surface to constant millibar pressures of nearly stoichiometric mixtures of CO and O2, we find that the catalytic activation process occurs in two different steps. 1 M. Favaro, F. F. Abdi, E. J. Crumlin, Z. Liu, R. Van De Krol and D. E. Starr, Surfaces, 2019, 2, 78–99. These two complementary techniques have allowed us to look into the physical and chemical state of the different molybdenum phases supported on the ZSM-5 zeolite. J. Chem. X-ray spectromiscroscopy methods are frequently used for the spatially-resolved in situ characterization of heterogeneous catalysts. Resume : Here we demonstrate the proof of principal and initial results of performing operando XPS electrochemistry in a lab based near atmospheric pressure (NAP) XPS system utilising a standard lab based monochromatic aluminium source. The reaction of direct aromatization of methane (DAM) has raised a great interest in the last years. Since this behavior is atypical for either CuO or SnO2 electrodes themselves, a synergetic effect between the two components is likely. View the profiles of people named Pip Clark. 4 Pip Stephenson 4 Jessica Chui 14 Erica Leslie 3 24 Maddy Hampton Vickers1 3 4 Miah Gough 5 Stephanie Jacobson 15 Emma Taha 5 Jaimie Staunton Smith 5 Jasmin Sardi 3 2 5 Cassie Clark€ 3 2 6 6 Clarissa Reed 6 Catriona Rice 6 Lucy Haig 5 1 6 Phoebe Mullins€ 1 7 Mimi Stoupas 3 7 Kasey Mooy 2 17 Holly Slattery 7 Indigo Ditterick 3 1 7 Tiahna Riley€ 8 Charlie Carter 1 8 Anna Munns 8 Lauren Thomas … 2019, 9, 2922-2930. Paul Scherrer Institute, 5232 Villigen PSI, Switzerland. 4 Jobs sind im Profil von Pip Clark aufgelistet. The NAP-XPS spectra are compared with room-temperature chemisorption experiments of CO and O2 carried out in Ultra-High-Vacuum, allowing us to identify and quantify surface chemical phases for each vicinal plane, before and after its catalytic activation, and under different reaction conditions. 62000. [2]Fabbri, E. et al., Nature Materials 2017, 16, 925–931 SpAnTeX is equipped with the first Phoibos 150 NAP analyzer that can reach photoelectron kinetic energies of 10 keV. Aafke C. Bronneberg, Richard van de Sanden, and Anja Bieberle-Hütter, Dutch Institute for Fundamental Energy Research (DIFFER), Eindhoven, 5612AJ, The Netherlands. Ambient pressure X-ray photoelectron spectroscopy (APXPS) is one of them [1]. Pip also has a joint honours degree in English and Drama from London University and studied Occupational Psychology with the Open University. 2. (2) Coskun, H.; Aljabour, A.; De Luna, P.; Farka, D.; Greunz, T.; Stifter, D.; Kus, M.; Zheng, X.; Liu, M.; Hassel, A. W.; Schöfberger, W.; Sargent, E. H.; Sariciftci, N. S.; Stadler, P. Biofunctionalized Conductive Polymers Enable Efficient CO2 Electroreduction. 62000. Gallium nitride (GaN) semiconductor has numerous featured physical and chemical properties that make it a promising candidate for use in biomolecular-based microelectronic devices and biosensors because of its natural living-cell biocompatibility and potentiality to convert biological information directly into electrical signal;however, evaluation and assessment of GaN surfaces performance in such devices can be achieved via studying the chemical structure. X. Fang, X. Lu, X. Guo, Y. Mao, Y.-S. Hu, J. Wang, Z. Wang, F. Wu, H. Liu, L. Chen, Electrochemistry Communications 2010. Soc. The recent extension of APXPS measurements to above 30 mbar opens the possibility to study aqueous solutions at their room temperature equilibrium vapour pressures. The first example presented shows the simplicity of obtaining relevant results on Silicon in different organic solvents without the need of highly sophisticated setups or special excitation sources beyond Al K alpha. We present the capabilities of a new APXPS endstation based at the BESSY II synchrotron, designed for studying solid-liquid, liquid-vapour, and liquid-liquid interfaces. Nat. It has been an ongoing debate if the results achieved at low pressures are relevant also for industrial conditions, often referred to as the pressure gap. 1 (2009) 522 Resume : The chemical industry is one of the most important sectors of our economy and it is estimated that nearly 90% of all chemical products rely on suitable catalysts that enhance the rate of chemical reactions. Elettra-Sincrotrone Trieste S.C.p.A, S.S. 14-Km 163.5,34149 Basovizza, Trieste, Italy. The soluble iron concentration initially increased, then rapidly decreased and later slowly increased. A versatile setup is presented, allowing for studies of solid-electrolyte interfaces for example in Lithium ion batteries as a simple laboratory experiment. The Cu 3d band in the alloy is surprisingly narrow, with a width of 0.5 eV, compared to 2.5 eV in bulk Cu. When exposing the c-Pt(111) surface to constant millibar pressures of nearly stoichiometric mixtures of CO and O2, we find that the catalytic activation process occurs in two different steps. Reads . [1] Qifeng Han Science 31, 2018:, pp. 4-Donostia International Physics Center DIPC, 20018-San Sebastian (Spain); The study of the catalytic oxidation of CO on Pt single crystals and nanoparticles has been a wide research field since long. Catalysts Live & Up Close Soc., 140, 16245−16252 (2018). Soc., 140, 16245−16252 (2018). Forschungsstrasse 111, 5232 Villigen PSI, Switzerland, Institute for Solar Fuels, Hahn-Meitner-Platz 1, 14109 Berlin, Germany, Carrer de la Llum, 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain, +33.3 88 10 63 7223 Rue du Loess BP 20 - 67037 Strasbourg Cedex 02, Novel Solutions for Near – Ambient Pressure in-situ and operando photoelectron spectro-microscopy, Using machine learning-based clustering techniques for the analysis of in situ X-ray spectromiscroscopy data, Spectroscopy and Carbon Dioxide Reduction, AP-XPS Studies of the CO2 Reduction Reaction on Metal Catalyst Surfaces, IR-operando studies on emerging CO2 electrocatalysts, AP-HAXPES to probe the solid-liquid interface, Probing Electrochemical Interface and Electrolyte Using In-Situ Photoelectron Spectroscopy, Ambient pressure hard x-ray photoelectron spectroscopy investigations of bismuth vanadate – electrolyte interfaces, Temperature effects on Cu(In,Ga)Se2 absorber layers with CdS and Zn(O,S) buffers - an in situ hard X-ray photoelectron spectrosc, Characterize the solid-liquid interfaces with XPS and XAS, In operando XPS and XAS on active oxygen evolution reaction catalysts in confined liquid electrolyte, Liquid-phase chemistry: graphene nanobubbles for in-situ electron spectroscopy, The Off-set Droplet Technique; A Pathway to Lab Based Operando XPS Electrochemistry, Chemical reactions, corrosion and electrochemistry at solid-liquid interfaces – Routine operando studies with Near Ambient Press, Metal-oxide electrode-electrolyte interfaces investigated by operando photoelectron spectroscopy, Operando ATR-SEIRAS study of the electrochemical double layer at Au thin film electrodes using low-cost Si wafer IREs, A study of GaN surfaces under ambient conditions by NAP-XPS, LEED and AFM techniques, SpAnTeX – a new ambient pressure XPS endstation for exploring interfaces involving liquids, Characterization of Cu-based catalysts under Methanol Steam Reforming conditions: An in situ Time-Resolved Spectroscopic study, Liquid environment at BACH beamline: achievements and perspectives, Investigating synergetic effects in Cu-Sn mixed metal oxide CO2 reduction electrocatalysts by hard and soft X-ray spectroscopy, A high-pressure x-ray photoelectron spectroscopy instrument for studies of catalytic reactions above atmospheric pressure, XAS/DRIFTS/MS spectroscopy for operando investigations on heterogeneous catalysts, In-Situ Spectroscopy: a beamline for the characterization of solid-gas and solid-liquid interfaces at the Swiss light source, In situ methods for analysis of the ORR, CO2RR and other energy conversion reactions, Understanding lithium storage mechanism in MnO2@CNT hybrid by in-situ synchrotron X-ray scattering study and Raman spectroscopy, Surface segregation acts as surface engineering for the oxygen evolution reaction on perovskite oxides in alkaline media, Operando Raman and infrared study on the role of additives to modulate toluene combustion on ceria-based catalysts, Active Mo species in methane dehydroaromatization reaction, NAP-XPS study of AgPd single-atom alloy catalysts. [1] X. Liu et. The system stands out among others for its achievements and flexibility. i) Active and spectator Ce3+ species co-exist in Pt/CeO2, Pt/Ce0.5Zr0.5O2 and Pt/Ce0.5Sn0.5O2 catalysts under working conditions of low-temperature CO oxidation but can be distinguished under transient conditions. Electrochemical attenuated total reflectance surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) was first introduced by Osawa [1] and co-workers and has emerged as a powerful tool for probing electrified interfaces. She will always encourage clients to push the boundaries in the pursuit of becoming world calibre leaders. In this presentation, we focus mainly on the experimental side of the approach and report on a novel way to study the surface intermediates using operando ATR-FTIR spectroscopy (attenuated total reflection Fourier-transform infrared spectroscopy). We have utilized surface-sensitive soft and hard X-ray techniques to investigate the interaction of metal catalytic surfaces with electrolytes and/or gases (H2O and/or CO2) under in situ/operando conditions at the Stanford Synchrotron Radiation Lightsources (SSRL) and Advanced Light Source (ALS). In this presentation, we focus mainly on the experimental side of the approach and report on a novel way to study the surface intermediates using operando ATR-FTIR spectroscopy (attenuated total reflection Fourier-transform infrared spectroscopy). Bivo4 – electrolyte interface London University and studied Occupational Psychology with the focused beam Nano analysis GmbH Berlin. Helmholtz‐Zentrum Berlin für Materialien und Energie ( HZB ), Hahn‐Meitner‐Platz 1, 14109 Berlin,.... Insights and guidance on leadership and resilience, for in-situ studies is highly [... 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