Marc F. Tesch
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View article: Decoupling the catalytic and degradation mechanisms of cobalt active sites during acidic water oxidation
Decoupling the catalytic and degradation mechanisms of cobalt active sites during acidic water oxidation Open
Advancement of iridium-free catalysts for the low-pH oxygen evolution reaction (OER) is required to enable multi-gigawatt-scale proton-exchange water electrolysis. Cobalt-based materials might address this requirement, but little is known …
View article: Mechanochemical activation of nickel oxide: a pivotal step in the process chain enabling binder-free-anodes for alkaline water electrolysis
Mechanochemical activation of nickel oxide: a pivotal step in the process chain enabling binder-free-anodes for alkaline water electrolysis Open
Sustainable hydrogen production via alkaline water electrolysis (AWE) demands robust electrocatalysts for the oxygen evolution reaction (OER) that combine performance with scalability. Herein, we address critical challenges in AWE by mecha…
View article: Wetting Across the Lyophilic–Lyophobic Spectrum: Morphological Tuning of Anode Catalyst Layers for the Alkaline Oxygen Evolution Reaction
Wetting Across the Lyophilic–Lyophobic Spectrum: Morphological Tuning of Anode Catalyst Layers for the Alkaline Oxygen Evolution Reaction Open
In alkaline water electrolysis (AWE), anode wettability plays a critical role in governing bubble dynamics at the anode–electrolyte interface. Effective bubble management is essential for improving AWE performance, as it enhances active si…
View article: Unraveling the Nanoscale Structure of Organic–Inorganic Hybrid Materials
Unraveling the Nanoscale Structure of Organic–Inorganic Hybrid Materials Open
Metal nanoparticles (NPs) immobilized on molecularly modified supports form versatile hybrid materials, offering extensive combinatorial flexibility and synergistic interactions between the organic and inorganic components, making them ide…
View article: A Proof‐of‐Principle Demonstration: Exploring the Effect of Anode Layer Microstructure on the Alkaline Oxygen Evolution Reaction
A Proof‐of‐Principle Demonstration: Exploring the Effect of Anode Layer Microstructure on the Alkaline Oxygen Evolution Reaction Open
This study explores the effect of nickel cobalt oxide (Ni‐Co‐O) anode layer microstructure on the oxygen evolution reaction (OER). Four anodes with similar Ni‐Co‐O loadings and chemical characteristics but distinct morphologies are fabrica…
View article: Ni-Co-O anodes for the alkaline oxygen evolution reaction: Multistage electrode optimization and plasma-assisted activity enhancement enabled by a coherent workflow
Ni-Co-O anodes for the alkaline oxygen evolution reaction: Multistage electrode optimization and plasma-assisted activity enhancement enabled by a coherent workflow Open
Ni-Co-based oxides (Ni-Co-O) are promising oxygen evolution reaction (OER) catalysts due to their adaptable structures, affordability, abundance, and strong electrochemical performance. While various studies explored the structure-activity…
View article: A Proof-of-Principle Demonstration: Exploring the Effect of Anode Layer Microstructure on the Alkaline Oxygen Evolution Reaction
A Proof-of-Principle Demonstration: Exploring the Effect of Anode Layer Microstructure on the Alkaline Oxygen Evolution Reaction Open
This study explores the effect of Ni-Co-O anode layer microstructure on the oxygen evolution reaction (OER). Four anodes with similar Ni-Co-O loadings and chemical characteristics but distinct morphologies are fabricated by ultrasonic spra…
View article: The power of operando analysis: Understanding the critical characteristics of OER catalysts from atomistic to systemic scales
The power of operando analysis: Understanding the critical characteristics of OER catalysts from atomistic to systemic scales Open
Developing high-efficiency and affordable electrocatalysts for the sluggish oxygen evolution reaction (OER) remains a crucial bottleneck on the way to practical applications of water electrolysis toward clean H2. Determining the OER mechan…
View article: The rotating disc electrode: measurement protocols and reproducibility in the evaluation of catalysts for the oxygen evolution reaction
The rotating disc electrode: measurement protocols and reproducibility in the evaluation of catalysts for the oxygen evolution reaction Open
Elaborated and uniform experimental protocols are a prerequisite for OER catalyst evaluation via RDE. Still, individual sample preparation and variations in microenvironment can lead to a significant spread of results between different lab…
View article: <i>Operando</i> studies of Mn oxide based electrocatalysts for the oxygen evolution reaction
<i>Operando</i> studies of Mn oxide based electrocatalysts for the oxygen evolution reaction Open
Mn-based electrocatalysts for the oxygen evolution reaction are often studied by means of in situ and operando spectroscopic methods. Here, specific challenges for such studies are discussed and recent works are reviewed.
View article: Tracking the transient: Real-time exploration of electromaterials by dynamic single energy X-ray spectroelectrochemistry
Tracking the transient: Real-time exploration of electromaterials by dynamic single energy X-ray spectroelectrochemistry Open
Electrochemical characterization of an electromaterial normally combines steady-state and dynamic analysis techniques to identify and parameterize key charge–transfer processes along with coupled material transformations and chemical/catal…
View article: Vacuum compatible flow‐cell for high‐quality in situ and operando soft X‐ray photon‐in–photon‐out spectroelectrochemical studies of energy materials
Vacuum compatible flow‐cell for high‐quality in situ and operando soft X‐ray photon‐in–photon‐out spectroelectrochemical studies of energy materials Open
Soft X‐ray spectroscopy is a powerful method to investigate materials on an element selective level with respect to their atomic and electronic structure. However, its application is technically challenging for in situ or operando investig…
View article: Stable Acidic Water Oxidation with a Cobalt–Iron–Lead Oxide Catalyst Operating via a Cobalt‐Selective Self‐Healing Mechanism
Stable Acidic Water Oxidation with a Cobalt–Iron–Lead Oxide Catalyst Operating via a Cobalt‐Selective Self‐Healing Mechanism Open
The instability and expense of anodes for water electrolyzers with acidic electrolytes can be overcome through the implementation of a cobalt‐iron‐lead oxide electrocatalyst, [Co–Fe–Pb]O x , that is self‐healing in the presence of dissolve…
View article: Facile Protocol for Alkaline Electrolyte Purification and Its Influence on a Ni–Co Oxide Catalyst for the Oxygen Evolution Reaction
Facile Protocol for Alkaline Electrolyte Purification and Its Influence on a Ni–Co Oxide Catalyst for the Oxygen Evolution Reaction Open
We report a simple and effective electrochemical method to remove Fe impurities from commercial KOH electrolyte. We therefore utilize a MoS2 catalyst deposited on porous Ni foam as both the anode and cathode in a two-electrode electrolysis…
View article: Magneto-optical reflection spectroscopy on graphene/Co in the soft x-ray range
Magneto-optical reflection spectroscopy on graphene/Co in the soft x-ray range Open
The existence of ferromagnetic ordering in graphene on cobalt is demonstrated by means of resonant magnetic reflection spectroscopy exploiting the transversal magneto-optical Kerr-effect (T-MOKE). Using linearly polarized synchrotron radia…
View article: LiXEdrom: High Energy Resolution RIXS Station dedicated to Liquid Investigation at BESSY II
LiXEdrom: High Energy Resolution RIXS Station dedicated to Liquid Investigation at BESSY II Open
LiXEdrom is an experimental station dedicated to high resolution RIXS measurements on liquid samples. It is equipped with two VLS gratings and advanced photon detector (MCP/phosphorous screen/CCD), covering soft X-ray range of 200 – 1200 e…