ArticleAngewandte Chemie (International ed. in English)2026
Combining ToF-SIMS and Multivariate Analysis to Resolve Active Sites on Ni-Based HER Catalysts.
Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Active Phase of Nickel Electrocatalysts Driving Alkaline Hydrogen Evolution.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Dissolution-redeposition dynamics as a universal restructuring mechanism of electrocatalysts.Chem circularity · 2026Review
- Combining ToF-SIMS and Multivariate Analysis to Resolve Active Sites on Ni-Based HER Catalysts.Angewandte Chemie (International ed. in English) · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
Unambiguous identification of active sites in heterogeneous catalysis remains a major challenge, particularly for materials with ultrathin, chemically mixed surface layers. Here, we demonstrate a generalizable approach that combines time-of-flight secondary ion mass spectrometry (ToF-SIMS) with multivariate statistical analysis (principal component analysis [PCA] and multivariate curve resolution [MCR]) to resolve catalytically relevant motifs at the nanoscale. Using Ni electrodes as a model system, PCA distinguished hydroxide-enriched domains from oxide- and metal-rich regions, while MCR decomposed depth profiles and 3D images into hydroxide, oxide, and metallic layers with nanometer resolution. A unique secondary-ion fragment, NiO
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