Deep-learning-enabled online mass spectrometry of the reaction product of a single catalyst nanoparticle.

ABSTRACT: Extracting weak signals from noise is a generic challenge in experimental science. In catalysis, it manifests itself as the need to quantify chemical reactions on nanoscopic surface areas, such as single nanoparticles or even single atoms. Here, we address this challenge by combining the ability of nanofluidic reactors to focus reaction product from tiny catalyst surfaces towards online mass spectrometric analysis with the high capacity of a constrained denoising auto-encoder to discern weak signals from noise. Using CO oxidation and C₂H₄ hydrogenation on Pd as model reactions, we demonstrate that the catalyst surface area required for online mass spectrometry can be reduced by  ≈ 3 orders of magnitude compared to state of the art, down to a single nanoparticle with 0

SUBMITTER: Klein Moberg H 

PROVIDER: S-EPMC12325981 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature