ArticleProceedings of the National Academy of Sciences of the United States of America2019
Direct high-resolution mapping of electrocatalytic activity of semi-two-dimensional catalysts with single-edge sensitivity.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Applications of Nanoscale Electrochemical Characterization Techniques in the Oxygen Evolution Reaction.Small methods · 2026Review
- Individually addressable multichannel nanoelectrodes reveal spatially resolved functional heterogeneity of vesicles in single cells.Chemical science · 2026Article
- Morphology-driven oxygen evolution performance of NiORSC advances · 2026Article
- Influence of Co and Mn Doping on the Surface Reconstruction of Faceted NiO(111) Nanosheets after the Oxygen Evolution Reaction.The journal of physical chemistry. C, Nanomaterials and interfaces · 2025Article
- Guided electrocatalyst design through in-situ techniques and data mining approaches.Nano convergence · 2025Review
- High-Resolution Mapping of Photocatalytic Activity by Diffusion-Based and Tunneling Modes of Photo-Scanning Electrochemical Microscopy.ACS nano · 2025Article
- Fe-Doped Ni-Based Catalysts Surpass Ir-Baselines for Oxygen Evolution Due to Optimal Charge-Transfer Characteristics.ACS catalysis · 2024Article
- Influence of Annealing Temperature on the OER Activity of NiO(111) Nanosheets Prepared via Microwave and Solvothermal Synthesis Approaches.ACS applied materials & interfaces · 2024Article
- Getting the Most Out of Fluorogenic Probes: Challenges and Opportunities in Using Single-Molecule Fluorescence to Image Electro- and Photocatalysis.Chemical & biomedical imaging · 2023Review
- Visualizing the role of applied voltage in non-metal electrocatalysts.National science review · 2023Article
- Mechanistic Insights Gained by High Spatial Resolution Reactivity Mapping of Homogeneous and Heterogeneous (Electro)Catalysts.Chemical reviews · 2023Review
- Operando Scanning Electrochemical Probe Microscopy during Electrocatalysis.Chemical reviews · 2023Review
- Promising transition metal decorated borophene catalyst for water splitting.RSC advances · 2023Article
- Review
- Plasmonic imaging of the layer-dependent electrocatalytic activity of two-dimensional catalysts.Nature communications · 2022Article
- Voltammetric Mapping of Hydrogen Evolution Reaction on Pt Locally via Scanning Electrochemical Cell Microscopy.ACS measurement science au · 2022Article
- Design of Ru-Ni diatomic sites for efficient alkaline hydrogen oxidation.Science advances · 2022Article
- Highly spatial imaging of electrochemical activity on the wrinkles of graphene using all-solid scanning electrochemical cell microscopy.Fundamental research · 2022Article
- Recent Progress on Revealing 3D Structure of Electrocatalysts Using Advanced 3D Electron Tomography: A Mini Review.Frontiers in chemistry · 2022Review
- Cubes to Cubes: Organization of MgO Particles into One-Dimensional and Two-Dimensional Nanostructures.Crystal growth & design · 2021Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The catalytic activity of low-dimensional electrocatalysts is highly dependent on their local atomic structures, particularly those less-coordinated sites found at edges and corners; therefore, a direct probe of the electrocatalytic current at specified local sites with true nanoscopic resolution has become critically important. Despite the growing availability of operando imaging tools, to date it has not been possible to measure the electrocatalytic activities from individual material edges and directly correlate those with the local structural defects. Herein, we show the possibility of using feedback and generation/collection modes of operation of the scanning electrochemical microscope (SECM) to independently image the topography and local electrocatalytic activity with 15-nm spatial resolution. We employed this operando microscopy technique to map out the oxygen evolution activity of a semi-2D nickel oxide nanosheet. The improved resolution and sensitivity enables us to distinguish the higher activities of the materials' edges from that of the fully coordinated surfaces
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