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This is a Experimental Study study.

September 24, 2025Open Access

Surfactant-free NaBH4-mediated synthesis of gold nanoparticles in water at room temperature: fine size control for active nanocatalysts

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Colloidal synthesis achieves fine size control for gold nanoparticles in water, highlighting efficient nanocatalysts.

Gold nanoparticles are produced with controlled sizes ranging from 5-20 nm, facilitating their use in various applications.
The NaBH4/Au molar ratio and water purity directly influence nanoparticle size, optimizing the synthesis process effectively.
Colloidal dispersions of the gold nanoparticles are stable for several months, enhancing their usability in practical applications.
The synthesis process is scalable from 2 mL to 100 mL without loss of size control, promoting efficiency in production.

Fokam et al. (2025) studied this question.

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