2026-06-01T09:36:28Z https://icatplus.esrf.fr/oaipmh/request

oai:icatplus.esrf.fr:inv/2107740442 2025-05-12T06:00:55.903Z

4.2 EI 10.15151/ESRF-ES-2107740442 Lucas KUHRTS Lucas Kuhrts 0000-0003-2896-4429 Lucas KUHRTS Lucas Kuhrts 0000-0003-2896-4429 Daniela DOBRYNIN Daniela Dobrynin 0000-0001-7682-2826 Ron ORENSTEIN Ron Orenstein 0009-0003-1561-1752 Daniela DOBRYNIN Daniela Dobrynin 0000-0001-7682-2826 Ron ORENSTEIN Ron Orenstein 0009-0003-1561-1752 Almog SULAM Almog Sulam 0009-0000-9707-2219 Almog SULAM Almog Sulam 0009-0000-9707-2219 Boaz POKROY Boaz Pokroy 0000-0003-0480-7250 Gouranga MANNA Gouranga Manna 0000-0002-3054-9024 Example Institute 2028 Data from large facility measurement 2025-05-09T06:00:00Z/2025-05-12T06:00:00Z 2025-05-12T06:00:00Z I CC-BY-4.0 This study aims to investigates the nucleation and growth mechanisms of gold nanoparticles (GNPs) and gold nanostars (GNSs) using time-resolved in situ small-angle X-ray scattering (SAXS) at the ESRF beamline ID02. By employing an accelerated Turkevich method, HAuCl₄ is rapidly reduced in an acidified ascorbic acid solution, forming GNPs. The addition of AgNO₃ within the first few seconds promotes nanostar morphology through silver-gold interaction. We focus on how temperature and the precise timing of AgNO₃ addition influence particle size, shape, and concentration. This research aims to uncover key mechanisms in nanoparticle formation and improve control over GNS synthesis for catalysis, sensing, and biomedical applications.