Ni Nanoparticles Supported on Graphene-Based Materials as Highly Stable Catalysts for the Cathode of Alkaline Membrane Fuel Cells
Year: 2024
Type: article
Abstract: Ni nanoparticles supported on graphene-based materials were tested as catalysts for the oxygen reduction reaction (ORR) to be used in anion exchange membrane fuel cells (AEMFCs). The introduction of N into the graphene structure produced an enhancement of electrocatalytic activity by improving electron transfer and creating additional active sites for the ORR. Materials containing both N and S demonstrated the highest stability, showing only a 3% performance loss after a 10 h stability test and therefore achieving the best overall performance. This long-term durability is attributed to the synergetic effect of Ni nanoparticles and bi-doped (S/N)-reduced graphene oxide. The findings suggest that the strategic incorporation of both nitrogen and sulphur into the graphene structure plays a crucial role in optimising the electrocatalytic properties of Ni-based catalysts.
Source: Nanomaterials
DOI: 10.3390/nano14211768
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,296
Funders: Universidad de La Laguna, European Commission, Ministry of Environment, Consiglio Nazionale delle Ricerche, Ministerio de Ciencia e Innovación, Agencia Canaria de Investigación, Innovación y Sociedad de la Información, Cabildo de Tenerife, Agencia Estatal de Investigación, European Social Fund
OpenAlex ID: W4404044912