Oxophilic Sn to Promote Glucose Oxidation to Formic Acid in Ni Nanoparticles
The electrochemical glucose oxidation reaction (GOR) presents an opportunity to produce hydrogen and high-value chemical products. Herein, we investigate the effect of Sn in Ni nanoparticles for the GOR to formic acid (FA). Electrochemical results show that the maximum activity is related to the amount of Ni, as Ni sites are responsible for catalyzing the GOR via the NiOOH/Ni(OH)<sub>2</sub> pair. However, the GOR kinetics increases with the amount of Sn, associated with an enhancement of the OH<sup>-</sup> supply to the catalyst surface for Ni(OH)<sub>2</sub> reoxidation to NiOOH. NiSn nanoparticles supported on carbon nanotubes (NiSn/CNT) exhibit excellent current densities and direct GOR via C-C cleavage mechanism, obtaining FA with a Faradaic efficiency (FE) of 93 % at 1.45 V vs. reversible hydrogen electrode. GOR selectivity is further studied by varying the applied potential, glucose concentration, reaction time, and temperature. FE toward FA production decreases due to formic overoxidation to carbonates at low glucose concentrations and high applied potentials, while acetic and lactic acids are obtained with high selectivity at high glucose concentrations and 55 °C. Density functional theory calculations show that the SnO<sub>2</sub> facilitates the adsorption of glucose on the surface of Ni and promotes the formation of the catalytic active Ni<sup>3+</sup> species.
Authors
- Guillem Montaña‐Mora (ORCID: https://orcid.org/0000-0003-1208-6836)
- Jordi Arbiol (ORCID: https://orcid.org/0000-0002-0695-1726)
- Frank Güell (ORCID: https://orcid.org/0000-0002-6528-9007)
- Xueqiang Qi (ORCID: https://orcid.org/0000-0003-4566-9552)
- Jesús Chacón‐Borrero (ORCID: https://orcid.org/0000-0001-9792-6720)
- Andreu Cabot (ORCID: https://orcid.org/0000-0002-7533-3251)
- Germán Salazar‐Alvarez (ORCID: https://orcid.org/0000-0002-0671-435X)
- María Chiara Spadaro (ORCID: https://orcid.org/0000-0002-6540-0377)
- Paulina R. Martínez‐Alanis (ORCID: https://orcid.org/0000-0003-3675-4472)
- Teresa Andreu (ORCID: https://orcid.org/0000-0002-2804-4545)
- Qian Xue (ORCID: https://orcid.org/0009-0003-7495-6443)
- Francesco Salutari (ORCID: https://orcid.org/0000-0002-5802-8941)
- Karol Viviana Mejía‐Centeno (ORCID: https://orcid.org/0000-0002-6353-4769)
- Jordi Llorca
Institutions
- Institució Catalana de Recerca i Estudis Avançats (ES)
- Uppsala University (SE)
- Chongqing University (CN)
- University of Catania (IT)
- Institut Català de Nanociència i Nanotecnologia (ES)
- Institut de Recerca en Energia de Catalunya (ES)
- Institute for Microelectronics and Microsystems (IT)
- Chongqing University of Technology (CN)
- Universitat de Barcelona (ES)
- Universitat Politècnica de Catalunya (ES)
Publication Details
- Journal
- ChemSusChem
- Published
- 2024-10-08
- DOI
- https://doi.org/10.1002/cssc.202401256
- Citations
- 7
- Primary Topic
- Electrochemical sensors and biosensors
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- Centres de Recerca de Catalunya
- Institut Català de Nanociència i Nanotecnologia
- European Commission
- Generalitat de Catalunya
- Institució Catalana de Recerca i Estudis Avançats
- Ministerio de Ciencia e Innovación
- Universitat Autònoma de Barcelona
- European Regional Development Fund
- Agencia Estatal de Investigación