Direct Oxidation of Glucose to Glucaric Acid Using Bimetallic AuPt/ZrO <sub>2</sub> Nanocatalysts
Transforming biobased resources, such as glucose, into value-added chemicals is a crucial step in utilizing biomass. Herein, we report on the one-pot conversion of glucose to glucaric acid, by selectively steering the oxidation of glucose from the typical production of gluconic acid toward the production of glucaric acid, using monometallic Au and Pt and bimetallic AuPt nanocatalysts supported on zirconia. While the monometallic catalysts promote the production of gluconic acid, bimetallic catalysts favor the direct formation of glucaric acid from glucose, with efficacy depending on the Au/Pt ratio, reaching up to 44% selectivity with the Au<sub>67%</sub>Pt<sub>33%</sub>@ZrO<sub>2</sub> catalyst. Theoretical calculations confirm the formation of alloys, as experimentally evidenced by EDX-mapping and HR-TEM imaging.
Authors
- Matej Huš (ORCID: https://orcid.org/0000-0002-8318-5121)
- Jaroslava Morávková (ORCID: https://orcid.org/0000-0002-7791-5204)
- Blaž Likozar (ORCID: https://orcid.org/0000-0001-7226-4302)
- Jaroslav Kupčík
- Miha Grilc (ORCID: https://orcid.org/0000-0002-8255-647X)
- Jan Plšek (ORCID: https://orcid.org/0000-0003-4706-0097)
- Janvit Teržan (ORCID: https://orcid.org/0000-0001-5528-5355)
- Abdul Selim (ORCID: https://orcid.org/0000-0002-6441-411X)
- Žan Lavrič (ORCID: https://orcid.org/0000-0002-5403-0948)
- Joanna E. Olszówka (ORCID: https://orcid.org/0000-0001-9896-4497)
- Štefan Vajda (ORCID: https://orcid.org/0000-0002-1879-2099)
- Ana Kroflič (ORCID: https://orcid.org/0000-0003-1722-8397)
- Eliška Mikysková (ORCID: https://orcid.org/0000-0003-1308-3610)
- Esther de Prado
Institutions
- University of Nova Gorica (SI)
- ŠKUC Association (SI)
- Czech Academy of Sciences, Institute of Inorganic Chemistry (CZ)
- Nanomaterials Research (United States) (US)
- Institute for the Protection of Cultural Heritage of Slovenia (SI)
- Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry (CZ)
- National Institute of Chemistry (SI)
- Institute of Physics of the Slovak Academy of Sciences (SK)
Publication Details
- Journal
- ACS Applied Nano Materials
- Published
- 2025-10-23
- DOI
- https://doi.org/10.1021/acsanm.5c03743
- Primary Topic
- Catalysis for Biomass Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.00