| Title: |
Non‐chemical route to PGM‐Free via N+ ion implantation in vertically aligned carbon nanotubes |
| Authors: |
Ficca, Valerio C. A.; Sbroscia, Marco; Stellino, Elena; Rago, Ilaria; Goto, Francesco; Majumdar, Isheta; Cavoto, Gianluca; Pandolfi, Francesco; Calloni, Alberto; Lucotti, Andrea; Bussetti, Gianlorenzo; Placidi, Ernesto |
| Contributors: |
Ficca, Valerio C. A.; Sbroscia, Marco; Stellino, Elena; Rago, Ilaria; Goto, Francesco; Majumdar, Isheta; Cavoto, Gianluca; Pandolfi, Francesco; Calloni, Alberto; Lucotti, Andrea; Bussetti, Gianlorenzo; Placidi, Ernesto |
| Publisher Information: |
John Wiley and Sons Inc; Weinheim, Germany |
| Publication Year: |
2025 |
| Collection: |
Sapienza Università di Roma: CINECA IRIS |
| Subject Terms: |
aligned CNT; ion implantation; nanomaterial; PGM-free; Raman; XPS |
| Description: |
The continuous research on electrocatalytic nanomaterials for critical raw materials replacement has returned the important class of Platinum-group-metal-free electrocatalysts (PGM-free), based on C, N, and non-noble transition metals. PGM-free are employed in Fuel Cells, Zinc-Air batteries, and Electrolyzers to catalyze important energy-related reactions. They are usually synthesized following a chemical route based on mixing, pyrolyzing, and postprocessing of specific N- and transition metal-containing compounds into conductive C structures, leading to a high content of byproducts. Herein, for the first time, a new approach for PGM-free synthesis is investigated, based on nitrogen implantation via ion beam produced with a Kaufman apparatus, and iron evaporation inside a clean chamber. The performed investigation, based on a model sp2 carbonaceous material (vertically aligned carbon nanotubes), showed similarities to the chemical route in terms of surface functionalization with the possibility to maximize the pyridinic N content, paving the way for the first time to the synthesis of nitrogen-compound-free nanoelectrocatalysts. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:001376093700001; volume:35; issue:4; firstpage:1; lastpage:11; numberofpages:11; journal:ADVANCED FUNCTIONAL MATERIALS; https://hdl.handle.net/11573/1732727 |
| DOI: |
10.1002/adfm.202413308 |
| Availability: |
https://hdl.handle.net/11573/1732727; https://doi.org/10.1002/adfm.202413308 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.9B3DA067 |
| Database: |
BASE |