Effects of iron nanoparticles and electro-stimulation on biohydrogen production by Clostridium pasteurianum.

Danielli Azevedo Monico, Guilherme Bueno Bresciani, Adalgisa Rodrigues de Andrade, Valeria Reginatto

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Article in Applied microbiology and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Danielli Azevedo MonicoDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14040-900, São Paulo State, Brazil.

Guilherme Bueno BrescianiDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14040-900, São Paulo State, Brazil.

Adalgisa Rodrigues de AndradeDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14040-900, São Paulo State, Brazil.

Valeria ReginattoDepartment of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14040-900, São Paulo State, Brazil. valeriars@ffclrp.usp.br.ORCID https://orcid.org/0000-0003-3185-6090

Funding

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6 · The paper itself

Abstract

Biological hydrogen (H₂) production is a promising alternative to fossil-based energy processes, and strategies capable of improving H₂ yields are required to enhance its industrial feasibility. In this study, iron nanoparticles supported on carbon black (Fe/CB) were evaluated, for the first time, alone and in combination with electro-stimulated fermentation (EF), to enhance H₂ production by Clostridium pasteurianum DSMZ 525. Suspended Fe/CB and Fe/CB immobilized on the anode were employed and compared with traditional fermentation (TF) and EF. Under TF conditions, suspended and immobilized Fe/CB increased H₂ production by 16.7% and 62.5%, respectively, while increasing organic acid concentrations by 3.6- and 4.7-fold. The highest H₂ concentration (129.82 mmol L⁻

Indexed as

ClostridiumHydrogenIronMetal NanoparticlesBiomassElectrodesFermentationSootHydrogenIronSootCarbon blackElectro-fermentationHydrogenIron nanoparticlesOrganic acid

Identifiers

PMID42455300

DOI10.1007/s00253-026-13951-6

PMCPMC13650106

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