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Showing 1–13 of 13 results
Advanced filters: Author: Sebastian Z. Oener Clear advanced filters

  • It is important yet challenging to elucidate the mechanism of water dissociation in bipolar membrane electrolysers. Here the authors show how water dissociation is accelerated by electric-field-focusing and catalytic effects and uncover design principles to optimize the performance.

    • Lihaokun Chen
    • Qiucheng Xu
    • Shannon W. Boettcher
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • Electrocatalytic multi-step reactions are very complex. Here, the authors report that the oxygen reduction reaction cascades through a series of rate-limiting steps that are linked to the bias- and pressure-dependent catalyst-solution interface.

    • Alex Ricardo Silva Olaya
    • Jody Druce
    • Sebastian Z. Oener
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-13

  • The oxygen evolution reaction proceeds over a surface that undergoes (frustrated) phase transitions to accommodate bias-dependent excess charge. Now it has been shown that this excess charge is intimately linked to the interfacial solvation of ions and the pre-organization of the transition state, providing insight into intrinsic catalyst activities.

    • Ricardo Martínez-Hincapié
    • Janis Timoshenko
    • Sebastian Z. Oener
    ResearchOpen Access
    Nature Chemistry
    P: 1-9

  • Balancing the carrier selectivity and extraction by the selective contacts is of vital importance to the performance of the nanowire solar cells. Here Oener et al. employ a permanent local gate to overcome this tradeoff and substantially increase the open-circuit voltage by 335 mV.

    • Sebastian Z. Oener
    • Alessandro Cavalli
    • Erik C. Garnett
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • Ion solvation at solid–electrolyte interfaces is crucial in various components of energy conversion technologies, including water splitting electrocatalysts and bipolar membranes, but is poorly understood. Here the authors study ion solvation kinetics in these systems, highlighting the key role of interfacial capacitance in determining behaviour.

    • Carlos G. Rodellar
    • José M. Gisbert-Gonzalez
    • Sebastian Z. Oener
    ResearchOpen Access
    Nature Energy
    Volume: 9, P: 548-558

  • Electrochemical CO2 and CO reduction are promising for the sustainable synthesis of multi-carbon products. However, the kinetics that govern the activity and selectivity of the interface between catalyst and solution remain poorly understood. Now, new research shows how the interfacial solvent can influence the product selectivity.

    • Sebastian Z. Oener
    News & Views
    Nature Chemistry
    Volume: 17, P: 1146-1147

  • Interfacial ion solvation is omnipresent in electrochemistry. Sarabia et al. now explore solvation kinetics with a millisecond time resolution and shine light on the critical role of the solvent during dynamic catalyst and electrosorption kinetics.

    • Francisco Sarabia
    • Carlos Gomez Rodellar
    • Sebastian Z. Oener
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • Bipolar membranes are emerging as an enabling component in numerous energy-relevant electrochemical devices, but a greater understanding of how they operate in complex electrolytes is needed. Research now reveals that ionic species in mixed-ion electrolytes can block the heart of the membrane, the bipolar junction, hampering its performance.

    • Sebastian Z. Oener
    News & Views
    Nature Energy
    Volume: 8, P: 1313-1314

  • Although nanocatalysts forming selective contacts are crucial in photoelectrochemistry, the underlying nanoscale interfaces are poorly understood. Using a n-Si/Ni photoanode and potential-sensing AFM, interfacial electron-transfer processes and photovoltage are measured.

    • Forrest A. L. Laskowski
    • Sebastian Z. Oener
    • Shannon W. Boettcher
    Research
    Nature Materials
    Volume: 19, P: 69-76

  • Spatially resolved measurements of the absorption, internal quantum efficiency and photoluminescence quantum yield of InP single nanowire solar cells allow the determination of intrinsic losses and thermodynamic limits of these nanophotonic devices.

    • Sander A. Mann
    • Sebastian Z. Oener
    • Erik C. Garnett
    Research
    Nature Nanotechnology
    Volume: 11, P: 1071-1075

  • The electrocatalytic oxygen evolution reaction (OER) balances the hydrogen evolution reaction when splitting water into hydrogen and oxygen. This review highlights the need for new theory, electrochemistry and operando spectroscopy to enable knowledge-driven synthesis of new OER electrocatalysts.

    • Sebastian Z. Oener
    • Arno Bergmann
    • Beatriz Roldan Cuenya
    Reviews
    Nature Synthesis
    Volume: 2, P: 817-827