| Full text | |
| Author(s): |
Antoniassi, Rodolfo M.
[1, 2]
;
Erikson, Heiki
[3, 2]
;
Solla-Gullon, Jose
[2]
;
Torresi, Roberto M.
[1]
;
Feliu, Juan M.
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Dept Quim Fundamental, Inst Quim, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Alicante, Inst Electroquim, Ap 99, Alicante 03080 - Spain
[3] Univ Tartu, Inst Chem, Ravila 14a, EE-50411 Tartu - Estonia
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | CHEMELECTROCHEM; v. 8, n. 1 NOV 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
Shape-controlled metal nanoparticles are significantly improving the electrocatalysis of many relevant reactions. By controlling the shape of nanoparticles, it is possible to engineer their surface to exhibit a preferential structure. However, to facilitate the incorporation of shaped nanomaterials into practical electrochemical devices, it is indispensable to overcome limitations caused by their large particle size (typically >5 nm). For practical applications, nanoparticles must have a size lower than 5 nm with a clean surface to decrease costs and provide a sufficiently large specific surface area. This is a major challenge that has remained unexplored up to now. Herein, we present the synthesis and electrochemical characterization of 3-5 nm, with well-defined cubic Pt nanoparticles supported on carbon. The electrochemical characterization of the nanoparticles evidences the existence of a preferential [100] and clean structure (within about 40 % of [100] terrace surface). (AU) | |
| FAPESP's process: | 17/15469-5 - Preparation of nanocatalysts with controlled morphology for applications in hydrogen purification and oxidation of contaminated hydrogen for electric energy generation |
| Grantee: | Rodolfo Molina Antoniassi |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/08051-0 - Reshaping of platinum nanoparticles from Pt/C by halide ions into electrochemical applications |
| Grantee: | Rodolfo Molina Antoniassi |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage |
| Grantee: | Roberto Manuel Torresi |
| Support Opportunities: | Research Projects - Thematic Grants |